/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-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label15.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 04:20:44,291 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 04:20:44,359 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 04:20:44,363 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 04:20:44,364 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 04:20:44,385 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 04:20:44,386 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 04:20:44,386 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 04:20:44,387 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 04:20:44,389 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 04:20:44,390 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 04:20:44,390 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 04:20:44,390 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 04:20:44,391 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 04:20:44,392 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 04:20:44,392 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 04:20:44,392 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 04:20:44,392 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 04:20:44,393 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 04:20:44,393 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 04:20:44,394 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 04:20:44,394 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 04:20:44,394 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 04:20:44,394 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 04:20:44,394 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 04:20:44,395 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 04:20:44,395 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 04:20:44,395 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 04:20:44,395 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 04:20:44,395 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 04:20:44,396 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 04:20:44,396 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 04:20:44,396 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 04:20:44,396 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 04:20:44,396 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:20:44,397 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 04:20:44,397 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 04:20:44,397 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 04:20:44,397 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 04:20:44,397 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 04:20:44,397 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 04:20:44,397 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 04:20:44,398 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 04:20:44,398 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 04:20:44,398 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 04:20:44,398 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 04:20:44,398 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 04:20:44,575 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 04:20:44,590 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 04:20:44,591 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 04:20:44,592 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 04:20:44,593 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 04:20:44,594 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label15.c
[2023-12-22 04:20:45,624 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 04:20:46,030 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 04:20:46,030 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label15.c
[2023-12-22 04:20:46,069 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9504ebd98/c4569528bab24509923d5863a2d92659/FLAG2b56d3eed
[2023-12-22 04:20:46,081 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9504ebd98/c4569528bab24509923d5863a2d92659
[2023-12-22 04:20:46,083 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 04:20:46,083 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 04:20:46,085 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 04:20:46,085 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 04:20:46,089 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 04:20:46,089 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:20:46" (1/1) ...
[2023-12-22 04:20:46,090 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dbaed8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:46, skipping insertion in model container
[2023-12-22 04:20:46,090 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:20:46" (1/1) ...
[2023-12-22 04:20:46,261 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 04:20:47,416 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label15.c[376590,376603]
[2023-12-22 04:20:47,446 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:20:47,456 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 04:20:48,030 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label15.c[376590,376603]
[2023-12-22 04:20:48,037 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:20:48,072 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 04:20:48,072 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48 WrapperNode
[2023-12-22 04:20:48,072 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 04:20:48,073 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 04:20:48,073 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 04:20:48,073 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 04:20:48,077 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,124 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,324 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12345
[2023-12-22 04:20:48,325 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 04:20:48,325 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 04:20:48,325 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 04:20:48,325 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 04:20:48,333 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,333 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,370 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,515 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].
[2023-12-22 04:20:48,515 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,515 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,624 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,660 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,680 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,700 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,742 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 04:20:48,743 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 04:20:48,744 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 04:20:48,744 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 04:20:48,744 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (1/1) ...
[2023-12-22 04:20:48,748 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:20:48,756 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 04:20:48,766 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)
[2023-12-22 04:20:48,785 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
[2023-12-22 04:20:48,790 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 04:20:48,790 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 04:20:48,791 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 04:20:48,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 04:20:48,960 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 04:20:48,962 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 04:20:56,277 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 04:20:56,342 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 04:20:56,342 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 04:20:56,342 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:20:56 BoogieIcfgContainer
[2023-12-22 04:20:56,342 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 04:20:56,344 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 04:20:56,344 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 04:20:56,346 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 04:20:56,346 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:20:46" (1/3) ...
[2023-12-22 04:20:56,346 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299f7356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:20:56, skipping insertion in model container
[2023-12-22 04:20:56,346 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:20:48" (2/3) ...
[2023-12-22 04:20:56,347 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299f7356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:20:56, skipping insertion in model container
[2023-12-22 04:20:56,347 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:20:56" (3/3) ...
[2023-12-22 04:20:56,347 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label15.c
[2023-12-22 04:20:56,358 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 04:20:56,358 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 04:20:56,406 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 04:20:56,411 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;@39d0dbef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 04:20:56,411 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 04:20:56,421 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2123 states, 2121 states have (on average 1.8962753418198963) internal successors, (4022), 2122 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:56,479 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1650
[2023-12-22 04:20:56,480 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:56,481 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:20:56,482 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:56,486 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:56,487 INFO  L85        PathProgramCache]: Analyzing trace with hash -1885913438, now seen corresponding path program 1 times
[2023-12-22 04:20:56,512 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:56,513 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267715995]
[2023-12-22 04:20:56,513 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:56,514 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:56,514 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:56,516 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:20:56,523 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-22 04:20:57,134 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:57,142 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1698 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 04:20:57,173 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:57,257 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:20:57,257 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:57,258 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:57,258 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267715995]
[2023-12-22 04:20:57,259 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [267715995] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:57,259 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:57,259 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:20:57,260 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337486275]
[2023-12-22 04:20:57,260 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:57,266 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 04:20:57,266 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:57,291 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 04:20:57,291 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:20:57,297 INFO  L87              Difference]: Start difference. First operand  has 2123 states, 2121 states have (on average 1.8962753418198963) internal successors, (4022), 2122 states have internal predecessors, (4022), 0 states have call successors, (0), 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 2 states, 2 states have (on average 824.5) internal successors, (1649), 2 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:57,378 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:57,378 INFO  L93              Difference]: Finished difference Result 4245 states and 8043 transitions.
[2023-12-22 04:20:57,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 04:20:57,381 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 824.5) internal successors, (1649), 2 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1649
[2023-12-22 04:20:57,385 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:57,400 INFO  L225             Difference]: With dead ends: 4245
[2023-12-22 04:20:57,400 INFO  L226             Difference]: Without dead ends: 2121
[2023-12-22 04:20:57,406 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1648 GetRequests, 1648 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:20:57,408 INFO  L413           NwaCegarLoop]: 3957 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:57,408 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3957 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-22 04:20:57,422 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2121 states.
[2023-12-22 04:20:57,472 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121.
[2023-12-22 04:20:57,476 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2121 states, 2120 states have (on average 1.866509433962264) internal successors, (3957), 2120 states have internal predecessors, (3957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:57,480 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3957 transitions.
[2023-12-22 04:20:57,481 INFO  L78                 Accepts]: Start accepts. Automaton has 2121 states and 3957 transitions. Word has length 1649
[2023-12-22 04:20:57,483 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:57,483 INFO  L495      AbstractCegarLoop]: Abstraction has 2121 states and 3957 transitions.
[2023-12-22 04:20:57,484 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 824.5) internal successors, (1649), 2 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:57,484 INFO  L276                IsEmpty]: Start isEmpty. Operand 2121 states and 3957 transitions.
[2023-12-22 04:20:57,536 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1650
[2023-12-22 04:20:57,536 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:57,537 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:20:57,544 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-22 04:20:57,742 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:57,742 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:57,743 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:57,743 INFO  L85        PathProgramCache]: Analyzing trace with hash -138952544, now seen corresponding path program 1 times
[2023-12-22 04:20:57,757 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:57,757 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944782290]
[2023-12-22 04:20:57,757 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:57,757 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:57,757 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:57,758 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:20:57,760 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-22 04:20:58,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:58,299 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1698 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:20:58,330 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:22:53,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:22:53,671 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:22:53,671 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:22:53,674 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944782290]
[2023-12-22 04:22:53,674 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [944782290] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:22:53,674 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:22:53,675 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:22:53,675 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551385399]
[2023-12-22 04:22:53,675 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:22:53,677 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-22 04:22:53,678 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:22:53,679 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-22 04:22:53,680 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272
[2023-12-22 04:22:53,680 INFO  L87              Difference]: Start difference. First operand 2121 states and 3957 transitions. Second operand  has 17 states, 17 states have (on average 97.0) internal successors, (1649), 16 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:23:26,314 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:23:26,315 INFO  L93              Difference]: Finished difference Result 9425 states and 18010 transitions.
[2023-12-22 04:23:26,315 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2023-12-22 04:23:26,316 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 97.0) internal successors, (1649), 16 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1649
[2023-12-22 04:23:26,318 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:23:26,336 INFO  L225             Difference]: With dead ends: 9425
[2023-12-22 04:23:26,336 INFO  L226             Difference]: Without dead ends: 7305
[2023-12-22 04:23:26,339 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1672 GetRequests, 1633 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=438, Invalid=1202, Unknown=0, NotChecked=0, Total=1640
[2023-12-22 04:23:26,340 INFO  L413           NwaCegarLoop]: 1057 mSDtfsCounter, 11047 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 27237 mSolverCounterSat, 4067 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11047 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 31304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4067 IncrementalHoareTripleChecker+Valid, 27237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:23:26,340 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11047 Valid, 1654 Invalid, 31304 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4067 Valid, 27237 Invalid, 0 Unknown, 0 Unchecked, 27.9s Time]
[2023-12-22 04:23:26,346 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7305 states.
[2023-12-22 04:23:26,423 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7305 to 7262.
[2023-12-22 04:23:26,431 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7262 states, 7261 states have (on average 1.4171601707753754) internal successors, (10290), 7261 states have internal predecessors, (10290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:23:26,448 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7262 states to 7262 states and 10290 transitions.
[2023-12-22 04:23:26,449 INFO  L78                 Accepts]: Start accepts. Automaton has 7262 states and 10290 transitions. Word has length 1649
[2023-12-22 04:23:26,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:23:26,450 INFO  L495      AbstractCegarLoop]: Abstraction has 7262 states and 10290 transitions.
[2023-12-22 04:23:26,451 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 97.0) internal successors, (1649), 16 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:23:26,451 INFO  L276                IsEmpty]: Start isEmpty. Operand 7262 states and 10290 transitions.
[2023-12-22 04:23:26,474 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1672
[2023-12-22 04:23:26,474 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:23:26,475 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:23:26,484 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-22 04:23:26,681 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:23:26,682 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:23:26,682 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:23:26,683 INFO  L85        PathProgramCache]: Analyzing trace with hash -821553298, now seen corresponding path program 1 times
[2023-12-22 04:23:26,691 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:23:26,692 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898154581]
[2023-12-22 04:23:26,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:23:26,692 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:23:26,692 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:23:26,696 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:23:26,708 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-22 04:23:27,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:23:27,227 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:23:27,249 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:23:27,308 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-12-22 04:23:27,308 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:23:27,308 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:23:27,308 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898154581]
[2023-12-22 04:23:27,309 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898154581] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:23:27,309 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:23:27,309 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:23:27,309 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380923495]
[2023-12-22 04:23:27,309 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:23:27,310 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:23:27,310 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:23:27,312 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:23:27,312 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:23:27,313 INFO  L87              Difference]: Start difference. First operand 7262 states and 10290 transitions. Second operand  has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:23:34,749 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:23:34,749 INFO  L93              Difference]: Finished difference Result 18011 states and 26838 transitions.
[2023-12-22 04:23:34,749 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:23:34,750 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1671
[2023-12-22 04:23:34,750 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:23:34,783 INFO  L225             Difference]: With dead ends: 18011
[2023-12-22 04:23:34,783 INFO  L226             Difference]: Without dead ends: 12376
[2023-12-22 04:23:34,795 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1670 GetRequests, 1669 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:23:34,795 INFO  L413           NwaCegarLoop]: 2296 mSDtfsCounter, 1717 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 5605 mSolverCounterSat, 1557 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 7162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1557 IncrementalHoareTripleChecker+Valid, 5605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:23:34,796 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 2522 Invalid, 7162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1557 Valid, 5605 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time]
[2023-12-22 04:23:34,807 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12376 states.
[2023-12-22 04:23:34,944 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12376 to 12366.
[2023-12-22 04:23:34,959 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12366 states, 12365 states have (on average 1.261463809138698) internal successors, (15598), 12365 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:23:34,979 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12366 states to 12366 states and 15598 transitions.
[2023-12-22 04:23:34,980 INFO  L78                 Accepts]: Start accepts. Automaton has 12366 states and 15598 transitions. Word has length 1671
[2023-12-22 04:23:34,980 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:23:34,980 INFO  L495      AbstractCegarLoop]: Abstraction has 12366 states and 15598 transitions.
[2023-12-22 04:23:34,981 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:23:34,981 INFO  L276                IsEmpty]: Start isEmpty. Operand 12366 states and 15598 transitions.
[2023-12-22 04:23:35,010 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1759
[2023-12-22 04:23:35,011 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:23:35,011 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:23:35,017 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-22 04:23:35,215 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:23:35,215 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:23:35,216 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:23:35,216 INFO  L85        PathProgramCache]: Analyzing trace with hash -835875546, now seen corresponding path program 1 times
[2023-12-22 04:23:35,224 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:23:35,224 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141307738]
[2023-12-22 04:23:35,224 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:23:35,224 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:23:35,224 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:23:35,225 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:23:35,232 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-22 04:23:35,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:23:35,761 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1820 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-22 04:23:35,785 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:24:44,863 INFO  L134       CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:24:44,863 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:24:44,863 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:24:44,864 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141307738]
[2023-12-22 04:24:44,864 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141307738] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:24:44,864 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:24:44,864 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:24:44,864 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853314016]
[2023-12-22 04:24:44,864 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:24:44,865 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:24:44,865 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:24:44,867 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:24:44,867 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:24:44,868 INFO  L87              Difference]: Start difference. First operand 12366 states and 15598 transitions. Second operand  has 16 states, 16 states have (on average 109.875) internal successors, (1758), 16 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:25:27,799 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:25:27,799 INFO  L93              Difference]: Finished difference Result 33119 states and 45713 transitions.
[2023-12-22 04:25:27,801 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2023-12-22 04:25:27,801 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 109.875) internal successors, (1758), 16 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1758
[2023-12-22 04:25:27,803 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:25:27,852 INFO  L225             Difference]: With dead ends: 33119
[2023-12-22 04:25:27,852 INFO  L226             Difference]: Without dead ends: 24078
[2023-12-22 04:25:27,863 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1777 GetRequests, 1745 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=341, Invalid=781, Unknown=0, NotChecked=0, Total=1122
[2023-12-22 04:25:27,864 INFO  L413           NwaCegarLoop]: 3945 mSDtfsCounter, 9268 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 56879 mSolverCounterSat, 3037 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9268 SdHoareTripleChecker+Valid, 5875 SdHoareTripleChecker+Invalid, 59916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3037 IncrementalHoareTripleChecker+Valid, 56879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:25:27,865 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9268 Valid, 5875 Invalid, 59916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3037 Valid, 56879 Invalid, 0 Unknown, 0 Unchecked, 40.5s Time]
[2023-12-22 04:25:27,885 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24078 states.
[2023-12-22 04:25:28,081 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24078 to 20676.
[2023-12-22 04:25:28,099 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20676 states, 20675 states have (on average 1.1806045949214026) internal successors, (24409), 20675 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:25:28,121 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20676 states to 20676 states and 24409 transitions.
[2023-12-22 04:25:28,121 INFO  L78                 Accepts]: Start accepts. Automaton has 20676 states and 24409 transitions. Word has length 1758
[2023-12-22 04:25:28,122 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:25:28,122 INFO  L495      AbstractCegarLoop]: Abstraction has 20676 states and 24409 transitions.
[2023-12-22 04:25:28,123 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 109.875) internal successors, (1758), 16 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:25:28,123 INFO  L276                IsEmpty]: Start isEmpty. Operand 20676 states and 24409 transitions.
[2023-12-22 04:25:28,218 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1795
[2023-12-22 04:25:28,218 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:25:28,219 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:25:28,225 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-22 04:25:28,419 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:25:28,420 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:25:28,421 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:25:28,421 INFO  L85        PathProgramCache]: Analyzing trace with hash 739516317, now seen corresponding path program 1 times
[2023-12-22 04:25:28,429 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:25:28,430 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008785096]
[2023-12-22 04:25:28,430 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:25:28,430 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:25:28,430 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:25:28,431 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:25:28,460 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-22 04:25:28,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:25:28,921 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:25:28,941 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:26:25,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 179 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:26:25,854 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:26:25,854 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:26:25,854 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008785096]
[2023-12-22 04:26:25,855 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008785096] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:26:25,855 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:26:25,855 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:26:25,855 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785797342]
[2023-12-22 04:26:25,855 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:26:25,856 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:26:25,856 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:26:25,858 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:26:25,858 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:26:25,858 INFO  L87              Difference]: Start difference. First operand 20676 states and 24409 transitions. Second operand  has 16 states, 16 states have (on average 112.125) internal successors, (1794), 16 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:26:58,828 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:26:58,829 INFO  L93              Difference]: Finished difference Result 49396 states and 63061 transitions.
[2023-12-22 04:26:58,829 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2023-12-22 04:26:58,830 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 112.125) internal successors, (1794), 16 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1794
[2023-12-22 04:26:58,831 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:26:58,874 INFO  L225             Difference]: With dead ends: 49396
[2023-12-22 04:26:58,874 INFO  L226             Difference]: Without dead ends: 32045
[2023-12-22 04:26:58,886 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1814 GetRequests, 1782 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=353, Invalid=769, Unknown=0, NotChecked=0, Total=1122
[2023-12-22 04:26:58,887 INFO  L413           NwaCegarLoop]: 2116 mSDtfsCounter, 10634 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 40118 mSolverCounterSat, 3936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10634 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 44054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3936 IncrementalHoareTripleChecker+Valid, 40118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:26:58,887 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10634 Valid, 3213 Invalid, 44054 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3936 Valid, 40118 Invalid, 0 Unknown, 0 Unchecked, 30.8s Time]
[2023-12-22 04:26:58,911 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32045 states.
[2023-12-22 04:26:59,119 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32045 to 28646.
[2023-12-22 04:26:59,143 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28646 states, 28645 states have (on average 1.1766451387676733) internal successors, (33705), 28645 states have internal predecessors, (33705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:26:59,174 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28646 states to 28646 states and 33705 transitions.
[2023-12-22 04:26:59,174 INFO  L78                 Accepts]: Start accepts. Automaton has 28646 states and 33705 transitions. Word has length 1794
[2023-12-22 04:26:59,175 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:26:59,175 INFO  L495      AbstractCegarLoop]: Abstraction has 28646 states and 33705 transitions.
[2023-12-22 04:26:59,175 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 112.125) internal successors, (1794), 16 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:26:59,177 INFO  L276                IsEmpty]: Start isEmpty. Operand 28646 states and 33705 transitions.
[2023-12-22 04:26:59,221 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1867
[2023-12-22 04:26:59,223 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:26:59,227 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:26:59,234 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-12-22 04:26:59,431 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:26:59,432 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:26:59,432 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:26:59,432 INFO  L85        PathProgramCache]: Analyzing trace with hash -890382373, now seen corresponding path program 1 times
[2023-12-22 04:26:59,440 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:26:59,440 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672146706]
[2023-12-22 04:26:59,440 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:26:59,440 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:26:59,441 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:26:59,441 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:26:59,442 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-12-22 04:26:59,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:26:59,944 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1944 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:26:59,958 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:00,155 INFO  L134       CoverageAnalysis]: Checked inductivity of 323 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked.
[2023-12-22 04:27:00,155 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:00,155 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:00,155 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672146706]
[2023-12-22 04:27:00,155 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [672146706] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:00,156 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:00,156 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:27:00,156 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42338347]
[2023-12-22 04:27:00,156 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:00,157 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:00,157 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:00,158 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:00,159 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:00,159 INFO  L87              Difference]: Start difference. First operand 28646 states and 33705 transitions. Second operand  has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 2 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:05,896 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:05,897 INFO  L93              Difference]: Finished difference Result 53958 states and 64058 transitions.
[2023-12-22 04:27:05,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:05,897 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 2 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1866
[2023-12-22 04:27:05,898 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:05,924 INFO  L225             Difference]: With dead ends: 53958
[2023-12-22 04:27:05,924 INFO  L226             Difference]: Without dead ends: 23542
[2023-12-22 04:27:05,950 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1865 GetRequests, 1864 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:05,952 INFO  L413           NwaCegarLoop]: 1004 mSDtfsCounter, 3078 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 4774 mSolverCounterSat, 893 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3078 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 5667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 893 IncrementalHoareTripleChecker+Valid, 4774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:05,952 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3078 Valid, 1078 Invalid, 5667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [893 Valid, 4774 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2023-12-22 04:27:05,970 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23542 states.
[2023-12-22 04:27:06,123 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23542 to 23542.
[2023-12-22 04:27:06,148 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23542 states, 23541 states have (on average 1.132067456777537) internal successors, (26650), 23541 states have internal predecessors, (26650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:06,170 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23542 states to 23542 states and 26650 transitions.
[2023-12-22 04:27:06,170 INFO  L78                 Accepts]: Start accepts. Automaton has 23542 states and 26650 transitions. Word has length 1866
[2023-12-22 04:27:06,171 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:06,171 INFO  L495      AbstractCegarLoop]: Abstraction has 23542 states and 26650 transitions.
[2023-12-22 04:27:06,171 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 2 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:06,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 23542 states and 26650 transitions.
[2023-12-22 04:27:06,222 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2034
[2023-12-22 04:27:06,222 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:06,223 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:27:06,227 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2023-12-22 04:27:06,427 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:06,428 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:06,428 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:06,429 INFO  L85        PathProgramCache]: Analyzing trace with hash 1386911420, now seen corresponding path program 1 times
[2023-12-22 04:27:06,437 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:06,437 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197138885]
[2023-12-22 04:27:06,437 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:06,437 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:06,437 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:06,438 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:27:06,439 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2023-12-22 04:27:07,112 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:07,120 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2144 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:27:07,132 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:07,157 INFO  L134       CoverageAnalysis]: Checked inductivity of 575 backedges. 396 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked.
[2023-12-22 04:27:07,157 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:07,157 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:07,157 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197138885]
[2023-12-22 04:27:07,157 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [197138885] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:07,157 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:07,158 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:27:07,158 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380885418]
[2023-12-22 04:27:07,158 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:07,159 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:07,159 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:07,160 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:07,161 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:07,161 INFO  L87              Difference]: Start difference. First operand 23542 states and 26650 transitions. Second operand  has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:13,876 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:13,877 INFO  L93              Difference]: Finished difference Result 55717 states and 63554 transitions.
[2023-12-22 04:27:13,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:13,878 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2033
[2023-12-22 04:27:13,878 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:13,918 INFO  L225             Difference]: With dead ends: 55717
[2023-12-22 04:27:13,919 INFO  L226             Difference]: Without dead ends: 33802
[2023-12-22 04:27:13,937 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2032 GetRequests, 2031 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:13,939 INFO  L413           NwaCegarLoop]: 3391 mSDtfsCounter, 1855 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 5219 mSolverCounterSat, 1744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 6963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1744 IncrementalHoareTripleChecker+Valid, 5219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:13,940 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1855 Valid, 3616 Invalid, 6963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1744 Valid, 5219 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time]
[2023-12-22 04:27:13,966 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33802 states.
[2023-12-22 04:27:14,176 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33802 to 30344.
[2023-12-22 04:27:14,198 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30344 states, 30343 states have (on average 1.127574728932538) internal successors, (34214), 30343 states have internal predecessors, (34214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:14,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30344 states to 30344 states and 34214 transitions.
[2023-12-22 04:27:14,228 INFO  L78                 Accepts]: Start accepts. Automaton has 30344 states and 34214 transitions. Word has length 2033
[2023-12-22 04:27:14,228 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:14,228 INFO  L495      AbstractCegarLoop]: Abstraction has 30344 states and 34214 transitions.
[2023-12-22 04:27:14,229 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:14,229 INFO  L276                IsEmpty]: Start isEmpty. Operand 30344 states and 34214 transitions.
[2023-12-22 04:27:14,486 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2056
[2023-12-22 04:27:14,486 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:14,487 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:27:14,494 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0
[2023-12-22 04:27:14,691 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:14,691 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:14,692 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:14,692 INFO  L85        PathProgramCache]: Analyzing trace with hash 1638426289, now seen corresponding path program 1 times
[2023-12-22 04:27:14,701 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:14,701 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146305521]
[2023-12-22 04:27:14,701 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:14,701 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:14,701 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:14,702 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:27:14,702 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2023-12-22 04:27:15,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:15,339 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2178 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:27:15,351 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:15,387 INFO  L134       CoverageAnalysis]: Checked inductivity of 659 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked.
[2023-12-22 04:27:15,387 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:15,388 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:15,388 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146305521]
[2023-12-22 04:27:15,388 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146305521] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:15,388 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:15,388 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:27:15,388 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795864942]
[2023-12-22 04:27:15,388 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:15,389 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:15,389 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:15,391 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:15,391 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:15,391 INFO  L87              Difference]: Start difference. First operand 30344 states and 34214 transitions. Second operand  has 3 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:22,260 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:22,260 INFO  L93              Difference]: Finished difference Result 77744 states and 89141 transitions.
[2023-12-22 04:27:22,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:22,261 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2055
[2023-12-22 04:27:22,268 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:22,316 INFO  L225             Difference]: With dead ends: 77744
[2023-12-22 04:27:22,316 INFO  L226             Difference]: Without dead ends: 49027
[2023-12-22 04:27:22,337 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2054 GetRequests, 2053 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:22,337 INFO  L413           NwaCegarLoop]: 1991 mSDtfsCounter, 1808 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 5780 mSolverCounterSat, 1386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 7166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1386 IncrementalHoareTripleChecker+Valid, 5780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:22,337 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 2256 Invalid, 7166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1386 Valid, 5780 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time]
[2023-12-22 04:27:22,375 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49027 states.
[2023-12-22 04:27:22,736 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49027 to 49021.
[2023-12-22 04:27:22,766 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49021 states, 49020 states have (on average 1.10687474500204) internal successors, (54259), 49020 states have internal predecessors, (54259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:22,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49021 states to 49021 states and 54259 transitions.
[2023-12-22 04:27:22,813 INFO  L78                 Accepts]: Start accepts. Automaton has 49021 states and 54259 transitions. Word has length 2055
[2023-12-22 04:27:22,814 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:22,814 INFO  L495      AbstractCegarLoop]: Abstraction has 49021 states and 54259 transitions.
[2023-12-22 04:27:22,814 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:22,814 INFO  L276                IsEmpty]: Start isEmpty. Operand 49021 states and 54259 transitions.
[2023-12-22 04:27:22,870 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2071
[2023-12-22 04:27:22,870 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:22,871 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:27:22,878 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2023-12-22 04:27:23,078 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:23,079 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:23,079 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:23,079 INFO  L85        PathProgramCache]: Analyzing trace with hash 367697308, now seen corresponding path program 1 times
[2023-12-22 04:27:23,088 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:23,088 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791724831]
[2023-12-22 04:27:23,088 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:23,088 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:23,088 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:23,089 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:27:23,091 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2023-12-22 04:27:23,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:23,770 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2179 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:27:23,780 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:23,835 INFO  L134       CoverageAnalysis]: Checked inductivity of 717 backedges. 538 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked.
[2023-12-22 04:27:23,835 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:23,835 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:23,835 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791724831]
[2023-12-22 04:27:23,835 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791724831] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:23,836 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:23,836 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:27:23,836 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522348241]
[2023-12-22 04:27:23,836 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:23,837 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:23,837 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:23,838 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:23,839 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:23,839 INFO  L87              Difference]: Start difference. First operand 49021 states and 54259 transitions. Second operand  has 3 states, 3 states have (on average 642.6666666666666) internal successors, (1928), 3 states have internal predecessors, (1928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:31,125 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:31,126 INFO  L93              Difference]: Finished difference Result 121897 states and 137158 transitions.
[2023-12-22 04:27:31,126 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:31,127 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 642.6666666666666) internal successors, (1928), 3 states have internal predecessors, (1928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2070
[2023-12-22 04:27:31,127 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:31,202 INFO  L225             Difference]: With dead ends: 121897
[2023-12-22 04:27:31,203 INFO  L226             Difference]: Without dead ends: 74503
[2023-12-22 04:27:31,226 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2069 GetRequests, 2068 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:31,227 INFO  L413           NwaCegarLoop]: 3753 mSDtfsCounter, 1739 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 5722 mSolverCounterSat, 1468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 3990 SdHoareTripleChecker+Invalid, 7190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1468 IncrementalHoareTripleChecker+Valid, 5722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:31,227 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1739 Valid, 3990 Invalid, 7190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1468 Valid, 5722 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time]
[2023-12-22 04:27:31,278 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74503 states.
[2023-12-22 04:27:31,713 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74503 to 74493.
[2023-12-22 04:27:31,763 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74493 states, 74492 states have (on average 1.0884121784889653) internal successors, (81078), 74492 states have internal predecessors, (81078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:31,833 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74493 states to 74493 states and 81078 transitions.
[2023-12-22 04:27:31,833 INFO  L78                 Accepts]: Start accepts. Automaton has 74493 states and 81078 transitions. Word has length 2070
[2023-12-22 04:27:31,834 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:31,834 INFO  L495      AbstractCegarLoop]: Abstraction has 74493 states and 81078 transitions.
[2023-12-22 04:27:31,834 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 642.6666666666666) internal successors, (1928), 3 states have internal predecessors, (1928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:31,834 INFO  L276                IsEmpty]: Start isEmpty. Operand 74493 states and 81078 transitions.
[2023-12-22 04:27:32,120 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2122
[2023-12-22 04:27:32,120 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:32,121 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:27:32,126 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0
[2023-12-22 04:27:32,322 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:32,322 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:32,323 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:32,323 INFO  L85        PathProgramCache]: Analyzing trace with hash -509374993, now seen corresponding path program 1 times
[2023-12-22 04:27:32,332 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:32,332 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84107871]
[2023-12-22 04:27:32,332 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:32,332 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:32,332 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:32,333 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:27:32,333 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2023-12-22 04:27:32,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:33,006 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2261 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:27:33,018 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:33,054 INFO  L134       CoverageAnalysis]: Checked inductivity of 919 backedges. 660 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked.
[2023-12-22 04:27:33,054 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:33,054 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:33,054 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84107871]
[2023-12-22 04:27:33,054 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [84107871] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:33,055 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:33,055 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:27:33,055 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782374188]
[2023-12-22 04:27:33,055 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:33,056 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:33,056 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:33,057 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:33,057 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:33,058 INFO  L87              Difference]: Start difference. First operand 74493 states and 81078 transitions. Second operand  has 3 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:39,655 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:39,655 INFO  L93              Difference]: Finished difference Result 171126 states and 188542 transitions.
[2023-12-22 04:27:39,656 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:39,656 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2121
[2023-12-22 04:27:39,657 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:39,765 INFO  L225             Difference]: With dead ends: 171126
[2023-12-22 04:27:39,766 INFO  L226             Difference]: Without dead ends: 98260
[2023-12-22 04:27:39,806 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2120 GetRequests, 2119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:39,807 INFO  L413           NwaCegarLoop]: 3364 mSDtfsCounter, 1951 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 5158 mSolverCounterSat, 1186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1951 SdHoareTripleChecker+Valid, 3693 SdHoareTripleChecker+Invalid, 6344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1186 IncrementalHoareTripleChecker+Valid, 5158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:39,807 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1951 Valid, 3693 Invalid, 6344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1186 Valid, 5158 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2023-12-22 04:27:39,890 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98260 states.
[2023-12-22 04:27:40,721 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98260 to 98258.
[2023-12-22 04:27:40,784 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98258 states, 98257 states have (on average 1.0831085825946243) internal successors, (106423), 98257 states have internal predecessors, (106423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:40,876 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98258 states to 98258 states and 106423 transitions.
[2023-12-22 04:27:40,876 INFO  L78                 Accepts]: Start accepts. Automaton has 98258 states and 106423 transitions. Word has length 2121
[2023-12-22 04:27:40,876 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:40,876 INFO  L495      AbstractCegarLoop]: Abstraction has 98258 states and 106423 transitions.
[2023-12-22 04:27:40,877 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:40,877 INFO  L276                IsEmpty]: Start isEmpty. Operand 98258 states and 106423 transitions.
[2023-12-22 04:27:41,154 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2186
[2023-12-22 04:27:41,154 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:41,155 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:27:41,164 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2023-12-22 04:27:41,360 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:41,360 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:41,360 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:41,361 INFO  L85        PathProgramCache]: Analyzing trace with hash 1714541326, now seen corresponding path program 1 times
[2023-12-22 04:27:41,369 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:41,370 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477718434]
[2023-12-22 04:27:41,370 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:41,370 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:41,370 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:41,372 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:27:41,372 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2023-12-22 04:27:42,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:42,079 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2310 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:27:42,091 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:42,343 INFO  L134       CoverageAnalysis]: Checked inductivity of 986 backedges. 802 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked.
[2023-12-22 04:27:42,344 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:42,344 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:42,344 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477718434]
[2023-12-22 04:27:42,344 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [477718434] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:42,344 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:42,344 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:27:42,344 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332157946]
[2023-12-22 04:27:42,344 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:42,346 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:42,346 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:42,347 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:42,347 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:42,347 INFO  L87              Difference]: Start difference. First operand 98258 states and 106423 transitions. Second operand  has 3 states, 3 states have (on average 679.6666666666666) internal successors, (2039), 3 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:48,891 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:48,891 INFO  L93              Difference]: Finished difference Result 206797 states and 224369 transitions.
[2023-12-22 04:27:48,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:48,892 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 679.6666666666666) internal successors, (2039), 3 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2185
[2023-12-22 04:27:48,892 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:49,106 INFO  L225             Difference]: With dead ends: 206797
[2023-12-22 04:27:49,106 INFO  L226             Difference]: Without dead ends: 110166
[2023-12-22 04:27:49,136 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2184 GetRequests, 2183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:49,136 INFO  L413           NwaCegarLoop]: 3845 mSDtfsCounter, 1614 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 4808 mSolverCounterSat, 1220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 6028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1220 IncrementalHoareTripleChecker+Valid, 4808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:49,137 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 4066 Invalid, 6028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1220 Valid, 4808 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time]
[2023-12-22 04:27:49,195 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 110166 states.
[2023-12-22 04:27:50,040 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 110166 to 110147.
[2023-12-22 04:27:50,110 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 110147 states, 110146 states have (on average 1.076253336480671) internal successors, (118545), 110146 states have internal predecessors, (118545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:50,350 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 110147 states to 110147 states and 118545 transitions.
[2023-12-22 04:27:50,350 INFO  L78                 Accepts]: Start accepts. Automaton has 110147 states and 118545 transitions. Word has length 2185
[2023-12-22 04:27:50,351 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:27:50,351 INFO  L495      AbstractCegarLoop]: Abstraction has 110147 states and 118545 transitions.
[2023-12-22 04:27:50,351 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 679.6666666666666) internal successors, (2039), 3 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:50,351 INFO  L276                IsEmpty]: Start isEmpty. Operand 110147 states and 118545 transitions.
[2023-12-22 04:27:50,445 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2332
[2023-12-22 04:27:50,445 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:27:50,446 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:27:50,453 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2023-12-22 04:27:50,646 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:50,647 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:27:50,647 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:27:50,648 INFO  L85        PathProgramCache]: Analyzing trace with hash 786918689, now seen corresponding path program 1 times
[2023-12-22 04:27:50,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:27:50,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354848494]
[2023-12-22 04:27:50,779 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:27:50,779 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:27:50,779 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:27:50,780 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:27:50,780 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2023-12-22 04:27:51,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:27:51,515 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:27:51,528 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:27:51,823 INFO  L134       CoverageAnalysis]: Checked inductivity of 1716 backedges. 1309 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked.
[2023-12-22 04:27:51,823 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:27:51,823 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:27:51,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354848494]
[2023-12-22 04:27:51,823 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354848494] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:27:51,823 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:27:51,823 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:27:51,824 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5252105]
[2023-12-22 04:27:51,824 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:27:51,825 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:27:51,825 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:27:51,826 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:27:51,826 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:51,827 INFO  L87              Difference]: Start difference. First operand 110147 states and 118545 transitions. Second operand  has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:27:58,562 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:27:58,562 INFO  L93              Difference]: Finished difference Result 237365 states and 255566 transitions.
[2023-12-22 04:27:58,563 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:27:58,563 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2331
[2023-12-22 04:27:58,564 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:27:58,717 INFO  L225             Difference]: With dead ends: 237365
[2023-12-22 04:27:58,718 INFO  L226             Difference]: Without dead ends: 128845
[2023-12-22 04:27:58,763 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2330 GetRequests, 2329 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:27:58,763 INFO  L413           NwaCegarLoop]: 3831 mSDtfsCounter, 1632 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 4871 mSolverCounterSat, 1190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 4049 SdHoareTripleChecker+Invalid, 6061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1190 IncrementalHoareTripleChecker+Valid, 4871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:27:58,763 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 4049 Invalid, 6061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1190 Valid, 4871 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2023-12-22 04:27:58,860 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128845 states.
[2023-12-22 04:28:00,002 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128845 to 128826.
[2023-12-22 04:28:00,075 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 128826 states, 128825 states have (on average 1.068674558509606) internal successors, (137672), 128825 states have internal predecessors, (137672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:00,342 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 128826 states to 128826 states and 137672 transitions.
[2023-12-22 04:28:00,343 INFO  L78                 Accepts]: Start accepts. Automaton has 128826 states and 137672 transitions. Word has length 2331
[2023-12-22 04:28:00,343 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:28:00,343 INFO  L495      AbstractCegarLoop]: Abstraction has 128826 states and 137672 transitions.
[2023-12-22 04:28:00,344 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:00,344 INFO  L276                IsEmpty]: Start isEmpty. Operand 128826 states and 137672 transitions.
[2023-12-22 04:28:00,599 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2414
[2023-12-22 04:28:00,599 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:28:00,600 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:28:00,607 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0
[2023-12-22 04:28:00,801 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:00,801 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:28:00,801 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:28:00,802 INFO  L85        PathProgramCache]: Analyzing trace with hash -2143160013, now seen corresponding path program 1 times
[2023-12-22 04:28:00,811 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:28:00,811 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487866965]
[2023-12-22 04:28:00,811 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:28:00,811 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:00,812 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:28:00,812 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:28:00,813 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2023-12-22 04:28:01,545 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:28:01,556 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2584 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:28:01,569 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:28:01,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 1928 backedges. 1215 proven. 0 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked.
[2023-12-22 04:28:01,648 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:28:01,649 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:28:01,649 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487866965]
[2023-12-22 04:28:01,649 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487866965] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:28:01,649 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:28:01,649 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:28:01,649 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135922426]
[2023-12-22 04:28:01,649 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:28:01,650 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:28:01,651 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:28:01,652 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:28:01,652 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:28:01,652 INFO  L87              Difference]: Start difference. First operand 128826 states and 137672 transitions. Second operand  has 3 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:09,082 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:28:09,082 INFO  L93              Difference]: Finished difference Result 296788 states and 320090 transitions.
[2023-12-22 04:28:09,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:28:09,083 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2413
[2023-12-22 04:28:09,083 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:28:09,281 INFO  L225             Difference]: With dead ends: 296788
[2023-12-22 04:28:09,281 INFO  L226             Difference]: Without dead ends: 169589
[2023-12-22 04:28:09,325 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2412 GetRequests, 2411 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:28:09,325 INFO  L413           NwaCegarLoop]: 3612 mSDtfsCounter, 1855 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 5551 mSolverCounterSat, 1481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 3839 SdHoareTripleChecker+Invalid, 7032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1481 IncrementalHoareTripleChecker+Valid, 5551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:28:09,325 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1855 Valid, 3839 Invalid, 7032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1481 Valid, 5551 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time]
[2023-12-22 04:28:09,457 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 169589 states.
[2023-12-22 04:28:10,744 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 169589 to 167882.
[2023-12-22 04:28:10,837 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 167882 states, 167881 states have (on average 1.0623417778068989) internal successors, (178347), 167881 states have internal predecessors, (178347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:11,238 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 167882 states to 167882 states and 178347 transitions.
[2023-12-22 04:28:11,238 INFO  L78                 Accepts]: Start accepts. Automaton has 167882 states and 178347 transitions. Word has length 2413
[2023-12-22 04:28:11,239 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:28:11,239 INFO  L495      AbstractCegarLoop]: Abstraction has 167882 states and 178347 transitions.
[2023-12-22 04:28:11,239 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:11,239 INFO  L276                IsEmpty]: Start isEmpty. Operand 167882 states and 178347 transitions.
[2023-12-22 04:28:11,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2470
[2023-12-22 04:28:11,583 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:28:11,584 INFO  L195           NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:28:11,589 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2023-12-22 04:28:11,784 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:11,785 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:28:11,785 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:28:11,786 INFO  L85        PathProgramCache]: Analyzing trace with hash -667702738, now seen corresponding path program 1 times
[2023-12-22 04:28:11,795 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:28:11,795 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534707297]
[2023-12-22 04:28:11,795 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:28:11,796 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:11,796 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:28:11,798 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:28:11,798 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2023-12-22 04:28:12,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:28:12,549 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2653 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:28:12,562 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:28:12,662 INFO  L134       CoverageAnalysis]: Checked inductivity of 2288 backedges. 1508 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked.
[2023-12-22 04:28:12,662 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:28:12,662 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:28:12,662 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534707297]
[2023-12-22 04:28:12,662 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534707297] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:28:12,663 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:28:12,663 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:28:12,663 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383535405]
[2023-12-22 04:28:12,663 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:28:12,664 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:28:12,664 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:28:12,666 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:28:12,666 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:28:12,666 INFO  L87              Difference]: Start difference. First operand 167882 states and 178347 transitions. Second operand  has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:20,666 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:28:20,666 INFO  L93              Difference]: Finished difference Result 374964 states and 400949 transitions.
[2023-12-22 04:28:20,667 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:28:20,667 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2469
[2023-12-22 04:28:20,668 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:28:20,942 INFO  L225             Difference]: With dead ends: 374964
[2023-12-22 04:28:20,942 INFO  L226             Difference]: Without dead ends: 208709
[2023-12-22 04:28:20,988 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2468 GetRequests, 2467 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:28:20,988 INFO  L413           NwaCegarLoop]: 3783 mSDtfsCounter, 1799 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 6063 mSolverCounterSat, 1293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 3976 SdHoareTripleChecker+Invalid, 7356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1293 IncrementalHoareTripleChecker+Valid, 6063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:28:20,988 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 3976 Invalid, 7356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1293 Valid, 6063 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time]
[2023-12-22 04:28:21,294 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 208709 states.
[2023-12-22 04:28:23,016 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 208709 to 208642.
[2023-12-22 04:28:23,346 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 208642 states, 208641 states have (on average 1.0594753667783416) internal successors, (221050), 208641 states have internal predecessors, (221050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:23,578 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 208642 states to 208642 states and 221050 transitions.
[2023-12-22 04:28:23,578 INFO  L78                 Accepts]: Start accepts. Automaton has 208642 states and 221050 transitions. Word has length 2469
[2023-12-22 04:28:23,579 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:28:23,579 INFO  L495      AbstractCegarLoop]: Abstraction has 208642 states and 221050 transitions.
[2023-12-22 04:28:23,579 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:23,579 INFO  L276                IsEmpty]: Start isEmpty. Operand 208642 states and 221050 transitions.
[2023-12-22 04:28:23,954 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2549
[2023-12-22 04:28:23,954 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:28:23,955 INFO  L195           NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:28:23,965 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2023-12-22 04:28:24,155 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:24,156 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:28:24,156 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:28:24,156 INFO  L85        PathProgramCache]: Analyzing trace with hash 147744838, now seen corresponding path program 1 times
[2023-12-22 04:28:24,166 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:28:24,166 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601057910]
[2023-12-22 04:28:24,167 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:28:24,167 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:24,167 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:28:24,168 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:28:24,169 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2023-12-22 04:28:24,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:28:24,945 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2733 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:28:24,959 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:28:25,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 2626 backedges. 1846 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked.
[2023-12-22 04:28:25,116 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:28:25,116 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:28:25,116 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601057910]
[2023-12-22 04:28:25,116 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601057910] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:28:25,116 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:28:25,116 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:28:25,116 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545577918]
[2023-12-22 04:28:25,116 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:28:25,118 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:28:25,118 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:28:25,119 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:28:25,119 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:28:25,119 INFO  L87              Difference]: Start difference. First operand 208642 states and 221050 transitions. Second operand  has 3 states, 3 states have (on average 675.6666666666666) internal successors, (2027), 3 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:33,424 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:28:33,424 INFO  L93              Difference]: Finished difference Result 483590 states and 516448 transitions.
[2023-12-22 04:28:33,425 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:28:33,425 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 675.6666666666666) internal successors, (2027), 3 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2548
[2023-12-22 04:28:33,426 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:28:33,925 INFO  L225             Difference]: With dead ends: 483590
[2023-12-22 04:28:33,925 INFO  L226             Difference]: Without dead ends: 276575
[2023-12-22 04:28:34,078 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2547 GetRequests, 2546 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:28:34,079 INFO  L413           NwaCegarLoop]: 2118 mSDtfsCounter, 1664 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 5628 mSolverCounterSat, 1500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 7128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1500 IncrementalHoareTripleChecker+Valid, 5628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:28:34,082 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 2345 Invalid, 7128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1500 Valid, 5628 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time]
[2023-12-22 04:28:34,315 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 276575 states.
[2023-12-22 04:28:36,680 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 276575 to 273164.
[2023-12-22 04:28:36,798 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 273164 states, 273163 states have (on average 1.0526205964936686) internal successors, (287537), 273163 states have internal predecessors, (287537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:37,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 273164 states to 273164 states and 287537 transitions.
[2023-12-22 04:28:37,144 INFO  L78                 Accepts]: Start accepts. Automaton has 273164 states and 287537 transitions. Word has length 2548
[2023-12-22 04:28:37,144 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:28:37,144 INFO  L495      AbstractCegarLoop]: Abstraction has 273164 states and 287537 transitions.
[2023-12-22 04:28:37,145 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 675.6666666666666) internal successors, (2027), 3 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:37,145 INFO  L276                IsEmpty]: Start isEmpty. Operand 273164 states and 287537 transitions.
[2023-12-22 04:28:37,637 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2585
[2023-12-22 04:28:37,637 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:28:37,638 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:28:37,645 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0
[2023-12-22 04:28:37,838 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:37,839 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:28:37,839 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:28:37,840 INFO  L85        PathProgramCache]: Analyzing trace with hash 724380608, now seen corresponding path program 1 times
[2023-12-22 04:28:37,850 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:28:37,850 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330672697]
[2023-12-22 04:28:37,850 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:28:37,850 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:37,850 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:28:37,851 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:28:37,852 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2023-12-22 04:28:38,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:28:38,688 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2699 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:28:38,708 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:29:58,406 INFO  L134       CoverageAnalysis]: Checked inductivity of 1488 backedges. 1183 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked.
[2023-12-22 04:29:58,406 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:29:58,406 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:29:58,406 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330672697]
[2023-12-22 04:29:58,406 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330672697] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:29:58,407 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:29:58,407 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18
[2023-12-22 04:29:58,407 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928662593]
[2023-12-22 04:29:58,407 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:29:58,408 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2023-12-22 04:29:58,408 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:29:58,410 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2023-12-22 04:29:58,410 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306
[2023-12-22 04:29:58,411 INFO  L87              Difference]: Start difference. First operand 273164 states and 287537 transitions. Second operand  has 18 states, 18 states have (on average 128.72222222222223) internal successors, (2317), 18 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:30:37,768 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:30:37,768 INFO  L93              Difference]: Finished difference Result 578500 states and 611225 transitions.
[2023-12-22 04:30:37,768 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2023-12-22 04:30:37,769 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 18 states have (on average 128.72222222222223) internal successors, (2317), 18 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2584
[2023-12-22 04:30:37,770 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:30:38,157 INFO  L225             Difference]: With dead ends: 578500
[2023-12-22 04:30:38,157 INFO  L226             Difference]: Without dead ends: 306963
[2023-12-22 04:30:38,264 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2607 GetRequests, 2570 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=450, Invalid=1032, Unknown=0, NotChecked=0, Total=1482
[2023-12-22 04:30:38,264 INFO  L413           NwaCegarLoop]: 412 mSDtfsCounter, 15474 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 44894 mSolverCounterSat, 2125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15474 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 47019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2125 IncrementalHoareTripleChecker+Valid, 44894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:30:38,265 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [15474 Valid, 1607 Invalid, 47019 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2125 Valid, 44894 Invalid, 0 Unknown, 0 Unchecked, 34.4s Time]
[2023-12-22 04:30:38,515 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 306963 states.
[2023-12-22 04:30:41,096 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 306963 to 271304.
[2023-12-22 04:30:41,229 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 271304 states, 271303 states have (on average 1.0526127613775005) internal successors, (285577), 271303 states have internal predecessors, (285577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:30:41,764 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 271304 states to 271304 states and 285577 transitions.
[2023-12-22 04:30:41,764 INFO  L78                 Accepts]: Start accepts. Automaton has 271304 states and 285577 transitions. Word has length 2584
[2023-12-22 04:30:41,766 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:30:41,766 INFO  L495      AbstractCegarLoop]: Abstraction has 271304 states and 285577 transitions.
[2023-12-22 04:30:41,766 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 128.72222222222223) internal successors, (2317), 18 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:30:41,766 INFO  L276                IsEmpty]: Start isEmpty. Operand 271304 states and 285577 transitions.
[2023-12-22 04:30:42,218 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2645
[2023-12-22 04:30:42,218 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:30:42,219 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:30:42,226 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0
[2023-12-22 04:30:42,420 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:30:42,420 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:30:42,420 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:30:42,421 INFO  L85        PathProgramCache]: Analyzing trace with hash -1877394144, now seen corresponding path program 1 times
[2023-12-22 04:30:42,431 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:30:42,431 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808991253]
[2023-12-22 04:30:42,431 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:30:42,431 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:30:42,431 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:30:42,432 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:30:42,433 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process
[2023-12-22 04:30:43,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:30:43,204 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2812 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:30:43,218 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:30:43,348 INFO  L134       CoverageAnalysis]: Checked inductivity of 2517 backedges. 1861 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked.
[2023-12-22 04:30:43,348 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:30:43,348 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:30:43,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808991253]
[2023-12-22 04:30:43,348 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [808991253] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:30:43,348 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:30:43,349 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:30:43,349 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120742439]
[2023-12-22 04:30:43,349 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:30:43,350 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:30:43,350 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:30:43,352 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:30:43,352 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:30:43,352 INFO  L87              Difference]: Start difference. First operand 271304 states and 285577 transitions. Second operand  has 3 states, 3 states have (on average 732.3333333333334) internal successors, (2197), 3 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:30:51,931 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:30:51,931 INFO  L93              Difference]: Finished difference Result 700590 states and 739318 transitions.
[2023-12-22 04:30:51,932 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:30:51,932 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 732.3333333333334) internal successors, (2197), 3 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2644
[2023-12-22 04:30:51,933 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:30:52,505 INFO  L225             Difference]: With dead ends: 700590
[2023-12-22 04:30:52,505 INFO  L226             Difference]: Without dead ends: 408778
[2023-12-22 04:30:52,629 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2643 GetRequests, 2642 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:30:52,630 INFO  L413           NwaCegarLoop]: 1600 mSDtfsCounter, 2283 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4459 mSolverCounterSat, 2317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 6776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2317 IncrementalHoareTripleChecker+Valid, 4459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:30:52,630 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 1705 Invalid, 6776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2317 Valid, 4459 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time]
[2023-12-22 04:30:53,090 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 408778 states.
[2023-12-22 04:30:56,193 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 408778 to 379906.
[2023-12-22 04:30:56,398 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 379906 states, 379905 states have (on average 1.0425922270041195) internal successors, (396086), 379905 states have internal predecessors, (396086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:30:57,083 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 379906 states to 379906 states and 396086 transitions.
[2023-12-22 04:30:57,083 INFO  L78                 Accepts]: Start accepts. Automaton has 379906 states and 396086 transitions. Word has length 2644
[2023-12-22 04:30:57,084 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:30:57,084 INFO  L495      AbstractCegarLoop]: Abstraction has 379906 states and 396086 transitions.
[2023-12-22 04:30:57,084 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 732.3333333333334) internal successors, (2197), 3 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:30:57,084 INFO  L276                IsEmpty]: Start isEmpty. Operand 379906 states and 396086 transitions.
[2023-12-22 04:30:57,608 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2683
[2023-12-22 04:30:57,608 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:30:57,609 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:30:57,616 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0
[2023-12-22 04:30:57,810 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:30:57,810 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:30:57,810 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:30:57,811 INFO  L85        PathProgramCache]: Analyzing trace with hash 1271201137, now seen corresponding path program 1 times
[2023-12-22 04:30:57,821 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:30:57,821 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892436079]
[2023-12-22 04:30:57,821 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:30:57,821 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:30:57,821 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:30:57,822 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:30:57,823 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2023-12-22 04:30:58,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:30:58,645 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2807 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:30:58,664 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:31:00,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 1852 backedges. 1753 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked.
[2023-12-22 04:31:00,147 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:31:00,147 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:31:00,147 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892436079]
[2023-12-22 04:31:00,147 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892436079] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:31:00,147 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:31:00,147 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 04:31:00,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338316808]
[2023-12-22 04:31:00,148 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:31:00,149 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 04:31:00,149 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:31:00,151 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 04:31:00,151 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:31:00,151 INFO  L87              Difference]: Start difference. First operand 379906 states and 396086 transitions. Second operand  has 4 states, 4 states have (on average 646.25) internal successors, (2585), 4 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:10,438 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:31:10,438 INFO  L93              Difference]: Finished difference Result 761581 states and 795304 transitions.
[2023-12-22 04:31:10,439 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 04:31:10,439 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 646.25) internal successors, (2585), 4 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2682
[2023-12-22 04:31:10,440 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:31:10,940 INFO  L225             Difference]: With dead ends: 761581
[2023-12-22 04:31:10,941 INFO  L226             Difference]: Without dead ends: 380803
[2023-12-22 04:31:11,311 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2681 GetRequests, 2679 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:31:11,311 INFO  L413           NwaCegarLoop]: 1470 mSDtfsCounter, 4533 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 6527 mSolverCounterSat, 2579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4533 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 9106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2579 IncrementalHoareTripleChecker+Valid, 6527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:31:11,312 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4533 Valid, 1679 Invalid, 9106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2579 Valid, 6527 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time]
[2023-12-22 04:31:11,595 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 380803 states.
[2023-12-22 04:31:14,652 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 380803 to 377406.
[2023-12-22 04:31:14,839 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 377406 states, 377405 states have (on average 1.0232164385739457) internal successors, (386167), 377405 states have internal predecessors, (386167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:15,206 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 377406 states to 377406 states and 386167 transitions.
[2023-12-22 04:31:15,206 INFO  L78                 Accepts]: Start accepts. Automaton has 377406 states and 386167 transitions. Word has length 2682
[2023-12-22 04:31:15,206 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:31:15,207 INFO  L495      AbstractCegarLoop]: Abstraction has 377406 states and 386167 transitions.
[2023-12-22 04:31:15,207 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 646.25) internal successors, (2585), 4 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:15,207 INFO  L276                IsEmpty]: Start isEmpty. Operand 377406 states and 386167 transitions.
[2023-12-22 04:31:15,748 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2999
[2023-12-22 04:31:15,748 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:31:15,749 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:31:15,754 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2023-12-22 04:31:15,950 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:31:15,950 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:31:15,951 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:31:15,951 INFO  L85        PathProgramCache]: Analyzing trace with hash -797911568, now seen corresponding path program 1 times
[2023-12-22 04:31:15,963 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:31:15,963 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511155131]
[2023-12-22 04:31:15,964 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:31:15,964 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:31:15,964 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:31:15,965 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:31:15,968 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2023-12-22 04:31:16,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:31:16,976 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3083 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:31:16,997 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:32:09,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 1660 backedges. 1660 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:32:09,831 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:32:09,831 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:32:09,831 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511155131]
[2023-12-22 04:32:09,831 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [511155131] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:32:09,831 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:32:09,831 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18
[2023-12-22 04:32:09,831 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397937218]
[2023-12-22 04:32:09,832 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:32:09,833 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2023-12-22 04:32:09,833 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:32:09,835 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2023-12-22 04:32:09,835 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306
[2023-12-22 04:32:09,836 INFO  L87              Difference]: Start difference. First operand 377406 states and 386167 transitions. Second operand  has 18 states, 18 states have (on average 166.55555555555554) internal successors, (2998), 18 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:32:42,881 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:32:42,881 INFO  L93              Difference]: Finished difference Result 826254 states and 846368 transitions.
[2023-12-22 04:32:42,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2023-12-22 04:32:42,882 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 18 states have (on average 166.55555555555554) internal successors, (2998), 18 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2998
[2023-12-22 04:32:42,884 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:32:43,962 INFO  L225             Difference]: With dead ends: 826254
[2023-12-22 04:32:43,962 INFO  L226             Difference]: Without dead ends: 450474
[2023-12-22 04:32:44,102 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3032 GetRequests, 2989 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=518, Invalid=1462, Unknown=0, NotChecked=0, Total=1980
[2023-12-22 04:32:44,102 INFO  L413           NwaCegarLoop]: 286 mSDtfsCounter, 17089 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 31987 mSolverCounterSat, 2087 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17089 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 34074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2087 IncrementalHoareTripleChecker+Valid, 31987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:32:44,102 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17089 Valid, 1015 Invalid, 34074 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2087 Valid, 31987 Invalid, 0 Unknown, 0 Unchecked, 27.7s Time]
[2023-12-22 04:32:44,424 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 450474 states.
[2023-12-22 04:32:48,105 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 450474 to 422429.
[2023-12-22 04:32:48,283 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 422429 states, 422428 states have (on average 1.0204058443095627) internal successors, (431048), 422428 states have internal predecessors, (431048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:32:49,025 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 422429 states to 422429 states and 431048 transitions.
[2023-12-22 04:32:49,025 INFO  L78                 Accepts]: Start accepts. Automaton has 422429 states and 431048 transitions. Word has length 2998
[2023-12-22 04:32:49,027 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:32:49,027 INFO  L495      AbstractCegarLoop]: Abstraction has 422429 states and 431048 transitions.
[2023-12-22 04:32:49,027 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 166.55555555555554) internal successors, (2998), 18 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:32:49,028 INFO  L276                IsEmpty]: Start isEmpty. Operand 422429 states and 431048 transitions.
[2023-12-22 04:32:49,653 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3736
[2023-12-22 04:32:49,654 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:32:49,655 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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[2023-12-22 04:32:49,690 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2023-12-22 04:32:49,858 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:32:49,859 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:32:49,859 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:32:49,859 INFO  L85        PathProgramCache]: Analyzing trace with hash 606800660, now seen corresponding path program 1 times
[2023-12-22 04:32:49,876 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:32:49,876 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625934312]
[2023-12-22 04:32:49,876 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:32:49,876 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:32:49,877 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:32:49,877 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:32:49,878 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2023-12-22 04:32:50,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:32:50,972 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3878 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:32:51,012 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:32:51,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 4261 backedges. 2162 proven. 0 refuted. 0 times theorem prover too weak. 2099 trivial. 0 not checked.
[2023-12-22 04:32:51,108 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:32:51,108 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:32:51,108 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625934312]
[2023-12-22 04:32:51,108 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [625934312] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:32:51,108 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:32:51,108 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:32:51,108 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251801884]
[2023-12-22 04:32:51,110 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:32:51,111 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:32:51,112 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:32:51,113 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:32:51,113 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:32:51,114 INFO  L87              Difference]: Start difference. First operand 422429 states and 431048 transitions. Second operand  has 3 states, 3 states have (on average 926.0) internal successors, (2778), 3 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:32:57,841 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:32:57,841 INFO  L93              Difference]: Finished difference Result 844937 states and 862184 transitions.
[2023-12-22 04:32:57,842 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:32:57,842 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 926.0) internal successors, (2778), 3 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3735
[2023-12-22 04:32:57,843 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:32:58,434 INFO  L225             Difference]: With dead ends: 844937
[2023-12-22 04:32:58,435 INFO  L226             Difference]: Without dead ends: 424135
[2023-12-22 04:32:58,574 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3734 GetRequests, 3733 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:32:58,574 INFO  L413           NwaCegarLoop]: 2955 mSDtfsCounter, 1694 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 4538 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 4660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 4538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:32:58,574 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 3149 Invalid, 4660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 4538 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2023-12-22 04:32:59,135 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 424135 states.