/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-programs/Problem101_label05.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 18:16:07,967 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 18:16:08,039 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 18:16:08,044 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 18:16:08,044 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 18:16:08,068 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 18:16:08,069 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 18:16:08,069 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 18:16:08,070 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 18:16:08,073 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 18:16:08,073 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 18:16:08,073 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 18:16:08,073 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 18:16:08,074 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 18:16:08,074 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 18:16:08,075 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 18:16:08,075 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 18:16:08,075 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 18:16:08,076 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 18:16:08,076 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 18:16:08,076 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 18:16:08,077 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 18:16:08,077 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 18:16:08,077 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 18:16:08,077 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 18:16:08,077 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 18:16:08,078 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 18:16:08,078 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 18:16:08,078 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 18:16:08,078 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 18:16:08,079 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 18:16:08,079 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 18:16:08,079 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 18:16:08,079 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 18:16:08,079 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 18:16:08,079 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 18:16:08,079 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 18:16:08,079 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 18:16:08,080 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 18:16:08,080 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 18:16:08,080 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 18:16:08,080 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 18:16:08,081 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 18:16:08,081 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 18:16:08,081 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 18:16:08,081 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 18:16:08,081 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 18:16:08,251 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 18:16:08,265 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 18:16:08,267 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 18:16:08,267 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 18:16:08,268 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 18:16:08,269 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label05.c
[2023-12-22 18:16:09,345 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 18:16:10,508 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 18:16:10,509 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label05.c
[2023-12-22 18:16:10,615 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2cfbd2a7/56ef2c76526a49158da2e01fd7a43b78/FLAGbbcde6227
[2023-12-22 18:16:10,625 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2cfbd2a7/56ef2c76526a49158da2e01fd7a43b78
[2023-12-22 18:16:10,627 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 18:16:10,628 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 18:16:10,629 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 18:16:10,629 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 18:16:10,632 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 18:16:10,633 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:16:10" (1/1) ...
[2023-12-22 18:16:10,633 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db8810d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:10, skipping insertion in model container
[2023-12-22 18:16:10,633 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:16:10" (1/1) ...
[2023-12-22 18:16:11,162 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 18:16:18,057 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-programs/Problem101_label05.c[2768844,2768857]
[2023-12-22 18:16:18,117 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 18:16:18,134 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 18:16:21,955 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-programs/Problem101_label05.c[2768844,2768857]
[2023-12-22 18:16:21,963 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 18:16:22,731 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 18:16:22,731 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22 WrapperNode
[2023-12-22 18:16:22,731 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 18:16:22,733 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 18:16:22,745 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 18:16:22,745 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 18:16:22,752 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:23,537 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:26,174 INFO  L138                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83779
[2023-12-22 18:16:26,188 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 18:16:26,189 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 18:16:26,189 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 18:16:26,189 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 18:16:26,197 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:26,198 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:26,581 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:26,994 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 18:16:26,994 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:26,995 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:28,054 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:28,205 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:28,294 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:28,377 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:28,788 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 18:16:28,789 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 18:16:28,789 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 18:16:28,789 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 18:16:28,790 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (1/1) ...
[2023-12-22 18:16:28,794 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 18:16:28,801 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 18:16:28,831 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 18:16:28,853 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 18:16:28,853 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 18:16:28,853 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 18:16:28,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 18:16:28,850 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 18:16:29,023 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 18:16:29,024 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 18:17:12,890 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 18:17:13,041 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 18:17:13,041 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 18:17:13,042 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:17:13 BoogieIcfgContainer
[2023-12-22 18:17:13,042 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 18:17:13,044 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 18:17:13,044 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 18:17:13,046 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 18:17:13,047 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:16:10" (1/3) ...
[2023-12-22 18:17:13,047 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44de1936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:17:13, skipping insertion in model container
[2023-12-22 18:17:13,047 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:16:22" (2/3) ...
[2023-12-22 18:17:13,048 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44de1936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:17:13, skipping insertion in model container
[2023-12-22 18:17:13,048 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:17:13" (3/3) ...
[2023-12-22 18:17:13,049 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem101_label05.c
[2023-12-22 18:17:13,061 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 18:17:13,061 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 18:17:13,184 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 18:17:13,188 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;@776cde43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 18:17:13,189 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 18:17:13,217 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 0 states have call successors, (0), 0 states 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 18:17:13,910 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10100
[2023-12-22 18:17:13,911 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:17:13,916 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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[2023-12-22 18:17:13,917 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:17:13,922 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:17:13,928 INFO  L85        PathProgramCache]: Analyzing trace with hash 1613585012, now seen corresponding path program 1 times
[2023-12-22 18:17:14,051 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:17:14,052 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585792053]
[2023-12-22 18:17:14,054 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:17:14,054 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 18:17:14,054 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:17:14,056 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 18:17:14,061 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 18:17:17,551 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:17:17,657 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10242 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 18:17:17,770 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:17:18,094 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:17:18,094 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:17:18,095 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:17:18,095 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585792053]
[2023-12-22 18:17:18,096 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585792053] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:17:18,096 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:17:18,097 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:17:18,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395553861]
[2023-12-22 18:17:18,098 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:17:18,110 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 18:17:18,110 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:17:18,133 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 18:17:18,134 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 18:17:18,157 INFO  L87              Difference]: Start difference. First operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 0 states have call successors, (0), 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 5049.5) internal successors, (10099), 2 states have internal predecessors, (10099), 0 states have call successors, (0), 0 states 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 18:17:18,371 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:17:18,371 INFO  L93              Difference]: Finished difference Result 20389 states and 40675 transitions.
[2023-12-22 18:17:18,372 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 18:17:18,381 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 5049.5) internal successors, (10099), 2 states have internal predecessors, (10099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10099
[2023-12-22 18:17:18,394 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:17:18,439 INFO  L225             Difference]: With dead ends: 20389
[2023-12-22 18:17:18,440 INFO  L226             Difference]: Without dead ends: 10193
[2023-12-22 18:17:18,456 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10098 GetRequests, 10098 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 18:17:18,459 INFO  L413           NwaCegarLoop]: 20273 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, 20273 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 18:17:18,459 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20273 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-22 18:17:18,480 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10193 states.
[2023-12-22 18:17:18,630 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10193 to 10193.
[2023-12-22 18:17:18,654 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10193 states, 10192 states have (on average 1.9891091051805339) internal successors, (20273), 10192 states have internal predecessors, (20273), 0 states have call successors, (0), 0 states 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 18:17:18,674 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10193 states to 10193 states and 20273 transitions.
[2023-12-22 18:17:18,675 INFO  L78                 Accepts]: Start accepts. Automaton has 10193 states and 20273 transitions. Word has length 10099
[2023-12-22 18:17:18,688 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:17:18,688 INFO  L495      AbstractCegarLoop]: Abstraction has 10193 states and 20273 transitions.
[2023-12-22 18:17:18,692 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 5049.5) internal successors, (10099), 2 states have internal predecessors, (10099), 0 states have call successors, (0), 0 states 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 18:17:18,692 INFO  L276                IsEmpty]: Start isEmpty. Operand 10193 states and 20273 transitions.
[2023-12-22 18:17:19,431 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10100
[2023-12-22 18:17:19,431 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:17:19,434 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-12-22 18:17:19,451 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 (2)] Ended with exit code 0
[2023-12-22 18:17:19,648 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 18:17:19,649 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:17:19,649 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:17:19,652 INFO  L85        PathProgramCache]: Analyzing trace with hash 1759167786, now seen corresponding path program 1 times
[2023-12-22 18:17:19,740 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:17:19,740 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802990561]
[2023-12-22 18:17:19,742 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:17:19,742 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 18:17:19,742 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:17:19,743 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 18:17:19,748 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 18:17:22,980 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:17:23,076 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10242 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:17:23,155 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:17:34,208 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 18:17:34,208 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:17:34,208 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:17:34,208 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802990561]
[2023-12-22 18:17:34,208 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802990561] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:17:34,208 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:17:34,209 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:17:34,210 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430370464]
[2023-12-22 18:17:34,210 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:17:34,217 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:17:34,218 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:17:34,223 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:17:34,223 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:17:34,224 INFO  L87              Difference]: Start difference. First operand 10193 states and 20273 transitions. Second operand  has 3 states, 3 states have (on average 3366.3333333333335) internal successors, (10099), 2 states have internal predecessors, (10099), 0 states have call successors, (0), 0 states 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 18:18:23,066 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:18:23,067 INFO  L93              Difference]: Finished difference Result 30575 states and 60816 transitions.
[2023-12-22 18:18:23,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:18:23,070 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3366.3333333333335) internal successors, (10099), 2 states have internal predecessors, (10099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10099
[2023-12-22 18:18:23,081 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:18:23,157 INFO  L225             Difference]: With dead ends: 30575
[2023-12-22 18:18:23,158 INFO  L226             Difference]: Without dead ends: 20383
[2023-12-22 18:18:23,169 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10098 GetRequests, 10097 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 18:18:23,170 INFO  L413           NwaCegarLoop]: 6120 mSDtfsCounter, 193 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 32875 mSolverCounterSat, 8112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 6170 SdHoareTripleChecker+Invalid, 40987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8112 IncrementalHoareTripleChecker+Valid, 32875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.7s IncrementalHoareTripleChecker+Time
[2023-12-22 18:18:23,171 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 6170 Invalid, 40987 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8112 Valid, 32875 Invalid, 0 Unknown, 0 Unchecked, 47.7s Time]
[2023-12-22 18:18:23,193 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20383 states.
[2023-12-22 18:18:23,477 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20383 to 20383.
[2023-12-22 18:18:23,504 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20383 states, 20382 states have (on average 1.6933078206260426) internal successors, (34513), 20382 states have internal predecessors, (34513), 0 states have call successors, (0), 0 states 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 18:18:23,533 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20383 states to 20383 states and 34513 transitions.
[2023-12-22 18:18:23,533 INFO  L78                 Accepts]: Start accepts. Automaton has 20383 states and 34513 transitions. Word has length 10099
[2023-12-22 18:18:23,539 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:18:23,540 INFO  L495      AbstractCegarLoop]: Abstraction has 20383 states and 34513 transitions.
[2023-12-22 18:18:23,542 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3366.3333333333335) internal successors, (10099), 2 states have internal predecessors, (10099), 0 states have call successors, (0), 0 states 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 18:18:23,542 INFO  L276                IsEmpty]: Start isEmpty. Operand 20383 states and 34513 transitions.
[2023-12-22 18:18:24,285 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10104
[2023-12-22 18:18:24,285 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:18:24,290 INFO  L195           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:18:24,313 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 18:18:24,504 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 18:18:24,505 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:18:24,505 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:18:24,507 INFO  L85        PathProgramCache]: Analyzing trace with hash 1265896274, now seen corresponding path program 1 times
[2023-12-22 18:18:24,572 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:18:24,572 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642546324]
[2023-12-22 18:18:24,573 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:18:24,574 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 18:18:24,574 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:18:24,575 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 18:18:24,596 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 18:18:28,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:18:28,169 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10272 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:18:28,275 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:18:28,377 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:18:28,377 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:18:28,378 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:18:28,381 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642546324]
[2023-12-22 18:18:28,381 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [642546324] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:18:28,381 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:18:28,382 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:18:28,382 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40595368]
[2023-12-22 18:18:28,385 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:18:28,396 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:18:28,396 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:18:28,403 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:18:28,403 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:18:28,407 INFO  L87              Difference]: Start difference. First operand 20383 states and 34513 transitions. Second operand  has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 0 states 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 18:19:17,748 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:19:17,748 INFO  L93              Difference]: Finished difference Result 61145 states and 103536 transitions.
[2023-12-22 18:19:17,748 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:19:17,752 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10103
[2023-12-22 18:19:17,752 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:19:17,821 INFO  L225             Difference]: With dead ends: 61145
[2023-12-22 18:19:17,822 INFO  L226             Difference]: Without dead ends: 40763
[2023-12-22 18:19:17,851 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10102 GetRequests, 10101 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 18:19:17,852 INFO  L413           NwaCegarLoop]: 5084 mSDtfsCounter, 13140 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29482 mSolverCounterSat, 11039 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13140 SdHoareTripleChecker+Valid, 5133 SdHoareTripleChecker+Invalid, 40521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11039 IncrementalHoareTripleChecker+Valid, 29482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time
[2023-12-22 18:19:17,852 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13140 Valid, 5133 Invalid, 40521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11039 Valid, 29482 Invalid, 0 Unknown, 0 Unchecked, 48.4s Time]
[2023-12-22 18:19:18,032 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40763 states.
[2023-12-22 18:19:18,672 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40763 to 40763.
[2023-12-22 18:19:18,714 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40763 states, 40762 states have (on average 1.5206810264461998) internal successors, (61986), 40762 states have internal predecessors, (61986), 0 states have call successors, (0), 0 states 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 18:19:18,760 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40763 states to 40763 states and 61986 transitions.
[2023-12-22 18:19:18,761 INFO  L78                 Accepts]: Start accepts. Automaton has 40763 states and 61986 transitions. Word has length 10103
[2023-12-22 18:19:18,761 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:19:18,761 INFO  L495      AbstractCegarLoop]: Abstraction has 40763 states and 61986 transitions.
[2023-12-22 18:19:18,764 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 0 states 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 18:19:18,764 INFO  L276                IsEmpty]: Start isEmpty. Operand 40763 states and 61986 transitions.
[2023-12-22 18:19:19,299 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10105
[2023-12-22 18:19:19,299 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:19:19,302 INFO  L195           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:19:19,325 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 18:19:19,516 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 18:19:19,517 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:19:19,518 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:19:19,520 INFO  L85        PathProgramCache]: Analyzing trace with hash 1252205250, now seen corresponding path program 1 times
[2023-12-22 18:19:19,585 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:19:19,585 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205008522]
[2023-12-22 18:19:19,587 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:19:19,587 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 18:19:19,587 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:19:19,588 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 18:19:19,603 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 18:19:23,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:19:23,303 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10271 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:19:23,427 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:19:23,608 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:19:23,608 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:19:23,608 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:19:23,625 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205008522]
[2023-12-22 18:19:23,625 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [205008522] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:19:23,626 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:19:23,626 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:19:23,627 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548158728]
[2023-12-22 18:19:23,627 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:19:23,635 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:19:23,636 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:19:23,642 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:19:23,643 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:19:23,645 INFO  L87              Difference]: Start difference. First operand 40763 states and 61986 transitions. Second operand  has 3 states, 3 states have (on average 3368.0) internal successors, (10104), 2 states have internal predecessors, (10104), 0 states have call successors, (0), 0 states 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 18:20:13,117 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:20:13,118 INFO  L93              Difference]: Finished difference Result 122285 states and 185955 transitions.
[2023-12-22 18:20:13,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:20:13,121 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3368.0) internal successors, (10104), 2 states have internal predecessors, (10104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10104
[2023-12-22 18:20:13,121 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:20:13,253 INFO  L225             Difference]: With dead ends: 122285
[2023-12-22 18:20:13,253 INFO  L226             Difference]: Without dead ends: 81523
[2023-12-22 18:20:13,304 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10103 GetRequests, 10102 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 18:20:13,305 INFO  L413           NwaCegarLoop]: 7473 mSDtfsCounter, 11881 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29679 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11881 SdHoareTripleChecker+Valid, 7522 SdHoareTripleChecker+Invalid, 41356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 29679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.3s IncrementalHoareTripleChecker+Time
[2023-12-22 18:20:13,307 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11881 Valid, 7522 Invalid, 41356 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 29679 Invalid, 0 Unknown, 0 Unchecked, 48.3s Time]
[2023-12-22 18:20:13,377 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81523 states.
[2023-12-22 18:20:14,127 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81523 to 81523.
[2023-12-22 18:20:14,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81523 states, 81522 states have (on average 1.3968253968253967) internal successors, (113872), 81522 states have internal predecessors, (113872), 0 states have call successors, (0), 0 states 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 18:20:14,344 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81523 states to 81523 states and 113872 transitions.
[2023-12-22 18:20:14,344 INFO  L78                 Accepts]: Start accepts. Automaton has 81523 states and 113872 transitions. Word has length 10104
[2023-12-22 18:20:14,347 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:20:14,347 INFO  L495      AbstractCegarLoop]: Abstraction has 81523 states and 113872 transitions.
[2023-12-22 18:20:14,350 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3368.0) internal successors, (10104), 2 states have internal predecessors, (10104), 0 states have call successors, (0), 0 states 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 18:20:14,350 INFO  L276                IsEmpty]: Start isEmpty. Operand 81523 states and 113872 transitions.
[2023-12-22 18:20:15,680 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10116
[2023-12-22 18:20:15,681 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:20:15,684 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 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, 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]
[2023-12-22 18:20:15,705 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 18:20:15,903 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 18:20:15,903 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:20:15,904 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:20:15,906 INFO  L85        PathProgramCache]: Analyzing trace with hash 416015129, now seen corresponding path program 1 times
[2023-12-22 18:20:15,971 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:20:15,971 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029600980]
[2023-12-22 18:20:15,972 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:20:15,973 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 18:20:15,973 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:20:15,975 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 18:20:15,976 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 18:20:20,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:20:20,336 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10307 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:20:20,410 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:20:20,508 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2023-12-22 18:20:20,508 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:20:20,508 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:20:20,508 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029600980]
[2023-12-22 18:20:20,508 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029600980] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:20:20,508 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:20:20,509 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:20:20,509 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514498664]
[2023-12-22 18:20:20,509 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:20:20,517 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:20:20,517 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:20:20,523 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:20:20,523 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:20:20,526 INFO  L87              Difference]: Start difference. First operand 81523 states and 113872 transitions. Second operand  has 3 states, 3 states have (on average 3370.3333333333335) internal successors, (10111), 2 states have internal predecessors, (10111), 0 states have call successors, (0), 0 states 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 18:21:10,632 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:21:10,633 INFO  L93              Difference]: Finished difference Result 244565 states and 341613 transitions.
[2023-12-22 18:21:10,633 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:21:10,635 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3370.3333333333335) internal successors, (10111), 2 states have internal predecessors, (10111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10115
[2023-12-22 18:21:10,635 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:21:11,098 INFO  L225             Difference]: With dead ends: 244565
[2023-12-22 18:21:11,099 INFO  L226             Difference]: Without dead ends: 163043
[2023-12-22 18:21:11,179 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10114 GetRequests, 10113 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 18:21:11,180 INFO  L413           NwaCegarLoop]: 9616 mSDtfsCounter, 10459 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31810 mSolverCounterSat, 10499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10459 SdHoareTripleChecker+Valid, 9665 SdHoareTripleChecker+Invalid, 42309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10499 IncrementalHoareTripleChecker+Valid, 31810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.5s IncrementalHoareTripleChecker+Time
[2023-12-22 18:21:11,180 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10459 Valid, 9665 Invalid, 42309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10499 Valid, 31810 Invalid, 0 Unknown, 0 Unchecked, 48.5s Time]
[2023-12-22 18:21:11,276 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163043 states.
[2023-12-22 18:21:12,862 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163043 to 163043.
[2023-12-22 18:21:13,058 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163043 states, 163042 states have (on average 1.3038358214447812) internal successors, (212580), 163042 states have internal predecessors, (212580), 0 states have call successors, (0), 0 states 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 18:21:13,501 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 212580 transitions.
[2023-12-22 18:21:13,501 INFO  L78                 Accepts]: Start accepts. Automaton has 163043 states and 212580 transitions. Word has length 10115
[2023-12-22 18:21:13,502 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:21:13,502 INFO  L495      AbstractCegarLoop]: Abstraction has 163043 states and 212580 transitions.
[2023-12-22 18:21:13,519 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3370.3333333333335) internal successors, (10111), 2 states have internal predecessors, (10111), 0 states have call successors, (0), 0 states 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 18:21:13,535 INFO  L276                IsEmpty]: Start isEmpty. Operand 163043 states and 212580 transitions.
[2023-12-22 18:21:14,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10128
[2023-12-22 18:21:14,663 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:21:14,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:21:14,708 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 (6)] Ended with exit code 0
[2023-12-22 18:21:14,895 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 18:21:14,895 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:21:14,895 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:21:14,897 INFO  L85        PathProgramCache]: Analyzing trace with hash -1323132522, now seen corresponding path program 1 times
[2023-12-22 18:21:14,971 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:21:14,971 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529163241]
[2023-12-22 18:21:14,972 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:21:14,972 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 18:21:14,973 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:21:14,973 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 18:21:14,975 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 18:21:18,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:21:18,738 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10297 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:21:18,829 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:21:19,063 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:21:19,063 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:21:19,063 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:21:19,063 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529163241]
[2023-12-22 18:21:19,063 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529163241] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:21:19,063 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:21:19,064 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:21:19,064 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212656226]
[2023-12-22 18:21:19,064 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:21:19,073 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:21:19,073 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:21:19,084 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:21:19,084 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:21:19,088 INFO  L87              Difference]: Start difference. First operand 163043 states and 212580 transitions. Second operand  has 3 states, 3 states have (on average 3375.6666666666665) internal successors, (10127), 2 states have internal predecessors, (10127), 0 states have call successors, (0), 0 states 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 18:22:07,997 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:22:07,997 INFO  L93              Difference]: Finished difference Result 489125 states and 637737 transitions.
[2023-12-22 18:22:07,998 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:22:08,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3375.6666666666665) internal successors, (10127), 2 states have internal predecessors, (10127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10127
[2023-12-22 18:22:08,000 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:22:08,510 INFO  L225             Difference]: With dead ends: 489125
[2023-12-22 18:22:08,510 INFO  L226             Difference]: Without dead ends: 326083
[2023-12-22 18:22:08,610 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10126 GetRequests, 10125 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 18:22:08,610 INFO  L413           NwaCegarLoop]: 5586 mSDtfsCounter, 13839 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27414 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13839 SdHoareTripleChecker+Valid, 5635 SdHoareTripleChecker+Invalid, 40444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time
[2023-12-22 18:22:08,611 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13839 Valid, 5635 Invalid, 40444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27414 Invalid, 0 Unknown, 0 Unchecked, 46.7s Time]
[2023-12-22 18:22:08,841 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 326083 states.
[2023-12-22 18:22:11,515 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 326083 to 326083.
[2023-12-22 18:22:11,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 326083 states, 326082 states have (on average 1.2157555461509681) internal successors, (396436), 326082 states have internal predecessors, (396436), 0 states have call successors, (0), 0 states 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 18:22:12,924 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 326083 states to 326083 states and 396436 transitions.
[2023-12-22 18:22:12,924 INFO  L78                 Accepts]: Start accepts. Automaton has 326083 states and 396436 transitions. Word has length 10127
[2023-12-22 18:22:12,924 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:22:12,925 INFO  L495      AbstractCegarLoop]: Abstraction has 326083 states and 396436 transitions.
[2023-12-22 18:22:12,927 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3375.6666666666665) internal successors, (10127), 2 states have internal predecessors, (10127), 0 states have call successors, (0), 0 states 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 18:22:12,927 INFO  L276                IsEmpty]: Start isEmpty. Operand 326083 states and 396436 transitions.
[2023-12-22 18:22:14,089 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10150
[2023-12-22 18:22:14,089 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:22:14,097 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:22:14,115 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 18:22:14,312 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 18:22:14,313 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:22:14,313 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:22:14,314 INFO  L85        PathProgramCache]: Analyzing trace with hash 806795775, now seen corresponding path program 1 times
[2023-12-22 18:22:14,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:22:14,380 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024902970]
[2023-12-22 18:22:14,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:22:14,382 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 18:22:14,382 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:22:14,382 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 18:22:14,416 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 18:22:17,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:22:17,932 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10317 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:22:17,989 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:22:18,174 INFO  L134       CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:22:18,175 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:22:18,175 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:22:18,175 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024902970]
[2023-12-22 18:22:18,175 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024902970] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:22:18,175 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:22:18,176 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:22:18,176 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212519804]
[2023-12-22 18:22:18,176 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:22:18,181 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:22:18,181 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:22:18,186 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:22:18,186 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:22:18,187 INFO  L87              Difference]: Start difference. First operand 326083 states and 396436 transitions. Second operand  has 3 states, 3 states have (on average 3383.0) internal successors, (10149), 2 states have internal predecessors, (10149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:23:06,494 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:23:06,494 INFO  L93              Difference]: Finished difference Result 978245 states and 1189305 transitions.
[2023-12-22 18:23:06,495 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:23:06,497 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3383.0) internal successors, (10149), 2 states have internal predecessors, (10149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10149
[2023-12-22 18:23:06,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:23:07,764 INFO  L225             Difference]: With dead ends: 978245
[2023-12-22 18:23:07,764 INFO  L226             Difference]: Without dead ends: 652163
[2023-12-22 18:23:07,900 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10148 GetRequests, 10147 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 18:23:07,901 INFO  L413           NwaCegarLoop]: 7991 mSDtfsCounter, 11366 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30772 mSolverCounterSat, 11058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11366 SdHoareTripleChecker+Valid, 8040 SdHoareTripleChecker+Invalid, 41830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11058 IncrementalHoareTripleChecker+Valid, 30772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.8s IncrementalHoareTripleChecker+Time
[2023-12-22 18:23:07,901 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11366 Valid, 8040 Invalid, 41830 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11058 Valid, 30772 Invalid, 0 Unknown, 0 Unchecked, 44.8s Time]
[2023-12-22 18:23:08,578 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 652163 states.
[2023-12-22 18:23:14,425 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 652163 to 652163.
[2023-12-22 18:23:15,220 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 652163 states, 652162 states have (on average 1.1649252793017686) internal successors, (759720), 652162 states have internal predecessors, (759720), 0 states have call successors, (0), 0 states 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 18:23:17,605 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 652163 states to 652163 states and 759720 transitions.
[2023-12-22 18:23:17,605 INFO  L78                 Accepts]: Start accepts. Automaton has 652163 states and 759720 transitions. Word has length 10149
[2023-12-22 18:23:17,606 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:23:17,606 INFO  L495      AbstractCegarLoop]: Abstraction has 652163 states and 759720 transitions.
[2023-12-22 18:23:17,608 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3383.0) internal successors, (10149), 2 states have internal predecessors, (10149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:23:17,608 INFO  L276                IsEmpty]: Start isEmpty. Operand 652163 states and 759720 transitions.
[2023-12-22 18:23:19,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10164
[2023-12-22 18:23:19,278 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:23:19,281 INFO  L195           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-22 18:23:19,296 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 18:23:19,496 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 18:23:19,496 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:23:19,497 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:23:19,498 INFO  L85        PathProgramCache]: Analyzing trace with hash 1287440705, now seen corresponding path program 1 times
[2023-12-22 18:23:19,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:23:19,560 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171176254]
[2023-12-22 18:23:19,561 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:23:19,561 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 18:23:19,562 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:23:19,562 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 18:23:19,564 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 18:23:22,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:23:23,071 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10351 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:23:23,131 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:23:23,242 INFO  L134       CoverageAnalysis]: Checked inductivity of 83 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2023-12-22 18:23:23,242 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:23:23,243 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:23:23,243 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171176254]
[2023-12-22 18:23:23,243 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [171176254] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:23:23,243 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:23:23,244 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:23:23,244 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086154939]
[2023-12-22 18:23:23,244 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:23:23,248 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:23:23,249 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:23:23,252 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:23:23,252 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:23:23,253 INFO  L87              Difference]: Start difference. First operand 652163 states and 759720 transitions. Second operand  has 3 states, 3 states have (on average 3381.0) internal successors, (10143), 2 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:24:17,099 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:24:17,099 INFO  L93              Difference]: Finished difference Result 1956485 states and 2279157 transitions.
[2023-12-22 18:24:17,100 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:24:17,103 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3381.0) internal successors, (10143), 2 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10163
[2023-12-22 18:24:17,103 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:24:20,764 INFO  L225             Difference]: With dead ends: 1956485
[2023-12-22 18:24:20,764 INFO  L226             Difference]: Without dead ends: 1304323
[2023-12-22 18:24:21,741 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10162 GetRequests, 10161 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 18:24:21,743 INFO  L413           NwaCegarLoop]: 8029 mSDtfsCounter, 11662 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29733 mSolverCounterSat, 11749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11662 SdHoareTripleChecker+Valid, 8078 SdHoareTripleChecker+Invalid, 41482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11749 IncrementalHoareTripleChecker+Valid, 29733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time
[2023-12-22 18:24:21,744 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11662 Valid, 8078 Invalid, 41482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11749 Valid, 29733 Invalid, 0 Unknown, 0 Unchecked, 47.0s Time]
[2023-12-22 18:24:22,905 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1304323 states.
[2023-12-22 18:24:39,183 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304323 to 1304323.
[2023-12-22 18:24:41,115 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1304323 states, 1304322 states have (on average 1.1248127379588782) internal successors, (1467118), 1304322 states have internal predecessors, (1467118), 0 states have call successors, (0), 0 states 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 18:24:45,242 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1304323 states to 1304323 states and 1467118 transitions.
[2023-12-22 18:24:45,242 INFO  L78                 Accepts]: Start accepts. Automaton has 1304323 states and 1467118 transitions. Word has length 10163
[2023-12-22 18:24:45,242 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:24:45,243 INFO  L495      AbstractCegarLoop]: Abstraction has 1304323 states and 1467118 transitions.
[2023-12-22 18:24:45,245 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3381.0) internal successors, (10143), 2 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:24:45,245 INFO  L276                IsEmpty]: Start isEmpty. Operand 1304323 states and 1467118 transitions.