/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label26.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 04:28:32,975 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 04:28:33,045 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 04:28:33,048 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 04:28:33,049 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 04:28:33,070 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 04:28:33,071 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 04:28:33,071 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 04:28:33,072 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 04:28:33,075 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 04:28:33,075 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 04:28:33,075 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 04:28:33,076 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 04:28:33,077 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 04:28:33,077 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 04:28:33,078 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 04:28:33,078 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 04:28:33,078 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 04:28:33,078 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 04:28:33,078 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 04:28:33,078 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 04:28:33,079 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 04:28:33,079 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 04:28:33,079 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 04:28:33,079 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 04:28:33,079 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 04:28:33,079 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 04:28:33,080 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 04:28:33,080 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 04:28:33,080 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 04:28:33,081 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 04:28:33,081 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 04:28:33,081 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 04:28:33,081 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 04:28:33,081 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:28:33,081 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 04:28:33,081 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 04:28:33,082 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 04:28:33,082 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 04:28:33,082 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 04:28:33,082 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 04:28:33,082 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 04:28:33,082 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 04:28:33,082 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 04:28:33,083 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 04:28:33,083 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 04:28:33,083 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 04:28:33,282 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 04:28:33,309 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 04:28:33,311 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 04:28:33,312 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 04:28:33,312 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 04:28:33,313 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label26.c
[2023-12-22 04:28:34,312 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 04:28:34,780 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 04:28:34,780 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label26.c
[2023-12-22 04:28:34,819 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0fec4ef3/a1626c50eea0464d86e326afa1b545a9/FLAG01ed2054b
[2023-12-22 04:28:34,892 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0fec4ef3/a1626c50eea0464d86e326afa1b545a9
[2023-12-22 04:28:34,894 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 04:28:34,895 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 04:28:34,921 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 04:28:34,921 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 04:28:34,927 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 04:28:34,928 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:28:34" (1/1) ...
[2023-12-22 04:28:34,928 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@680d8c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:34, skipping insertion in model container
[2023-12-22 04:28:34,929 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:28:34" (1/1) ...
[2023-12-22 04:28:35,053 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 04:28:36,232 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label26.c[376454,376467]
[2023-12-22 04:28:36,255 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:28:36,265 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 04:28:36,863 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label26.c[376454,376467]
[2023-12-22 04:28:36,869 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:28:36,903 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 04:28:36,904 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36 WrapperNode
[2023-12-22 04:28:36,904 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 04:28:36,905 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 04:28:36,905 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 04:28:36,905 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 04:28:36,911 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:36,974 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,275 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12345
[2023-12-22 04:28:37,276 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 04:28:37,276 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 04:28:37,276 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 04:28:37,276 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 04:28:37,339 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,340 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,364 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,437 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-22 04:28:37,438 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,438 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,575 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,610 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,630 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,651 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,691 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 04:28:37,693 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 04:28:37,693 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 04:28:37,693 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 04:28:37,694 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (1/1) ...
[2023-12-22 04:28:37,697 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:28:37,705 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 04:28:37,717 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-22 04:28:37,732 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-22 04:28:37,737 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 04:28:37,737 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 04:28:37,738 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 04:28:37,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 04:28:37,831 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 04:28:37,906 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 04:28:45,082 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 04:28:45,142 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 04:28:45,142 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 04:28:45,143 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:28:45 BoogieIcfgContainer
[2023-12-22 04:28:45,143 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 04:28:45,145 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 04:28:45,145 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 04:28:45,147 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 04:28:45,147 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:28:34" (1/3) ...
[2023-12-22 04:28:45,148 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df6ae6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:28:45, skipping insertion in model container
[2023-12-22 04:28:45,148 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:28:36" (2/3) ...
[2023-12-22 04:28:45,148 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df6ae6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:28:45, skipping insertion in model container
[2023-12-22 04:28:45,148 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:28:45" (3/3) ...
[2023-12-22 04:28:45,149 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label26.c
[2023-12-22 04:28:45,161 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 04:28:45,161 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 04:28:45,221 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 04:28:45,226 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;@3ef900f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 04:28:45,226 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 04:28:45,236 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2123 states, 2121 states have (on average 1.8962753418198963) internal successors, (4022), 2122 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:45,297 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1649
[2023-12-22 04:28:45,297 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:28:45,299 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:28:45,300 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:28:45,306 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:28:45,306 INFO  L85        PathProgramCache]: Analyzing trace with hash -753585702, now seen corresponding path program 1 times
[2023-12-22 04:28:45,333 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:28:45,334 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179617614]
[2023-12-22 04:28:45,334 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:28:45,334 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:45,334 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:28:45,336 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:28:45,374 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-22 04:28:45,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:28:45,938 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 04:28:45,985 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:28:46,063 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:28:46,064 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:28:46,064 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:28:46,064 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179617614]
[2023-12-22 04:28:46,065 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179617614] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:28:46,065 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:28:46,065 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:28:46,066 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769102413]
[2023-12-22 04:28:46,067 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:28:46,079 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 04:28:46,079 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:28:46,120 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 04:28:46,121 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:28:46,127 INFO  L87              Difference]: Start difference. First operand  has 2123 states, 2121 states have (on average 1.8962753418198963) internal successors, (4022), 2122 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 824.0) internal successors, (1648), 2 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:46,211 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:28:46,212 INFO  L93              Difference]: Finished difference Result 4245 states and 8043 transitions.
[2023-12-22 04:28:46,213 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 04:28:46,215 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 824.0) internal successors, (1648), 2 states have internal predecessors, (1648), 0 states have call successors, (0), 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 1648
[2023-12-22 04:28:46,220 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:28:46,238 INFO  L225             Difference]: With dead ends: 4245
[2023-12-22 04:28:46,239 INFO  L226             Difference]: Without dead ends: 2121
[2023-12-22 04:28:46,247 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1647 GetRequests, 1647 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:28:46,249 INFO  L413           NwaCegarLoop]: 3957 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:28:46,250 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3957 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-22 04:28:46,265 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2121 states.
[2023-12-22 04:28:46,341 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121.
[2023-12-22 04:28:46,345 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2121 states, 2120 states have (on average 1.866509433962264) internal successors, (3957), 2120 states have internal predecessors, (3957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:46,349 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3957 transitions.
[2023-12-22 04:28:46,350 INFO  L78                 Accepts]: Start accepts. Automaton has 2121 states and 3957 transitions. Word has length 1648
[2023-12-22 04:28:46,354 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:28:46,355 INFO  L495      AbstractCegarLoop]: Abstraction has 2121 states and 3957 transitions.
[2023-12-22 04:28:46,355 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 824.0) internal successors, (1648), 2 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:28:46,356 INFO  L276                IsEmpty]: Start isEmpty. Operand 2121 states and 3957 transitions.
[2023-12-22 04:28:46,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1649
[2023-12-22 04:28:46,457 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:28:46,458 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]
[2023-12-22 04:28:46,471 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 04:28:46,659 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:46,660 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:28:46,661 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:28:46,662 INFO  L85        PathProgramCache]: Analyzing trace with hash 134064547, now seen corresponding path program 1 times
[2023-12-22 04:28:46,686 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:28:46,687 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588950372]
[2023-12-22 04:28:46,699 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:28:46,700 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:28:46,700 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:28:46,701 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:28:46,703 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-22 04:28:47,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:28:47,314 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:28:47,337 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:30:26,800 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:30:26,800 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:30:26,800 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:30:26,800 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588950372]
[2023-12-22 04:30:26,800 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [588950372] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:30:26,801 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:30:26,801 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:30:26,801 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573468786]
[2023-12-22 04:30:26,801 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:30:26,803 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-22 04:30:26,803 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:30:26,805 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-22 04:30:26,805 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272
[2023-12-22 04:30:26,806 INFO  L87              Difference]: Start difference. First operand 2121 states and 3957 transitions. Second operand  has 17 states, 17 states have (on average 96.94117647058823) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:20,391 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:31:20,391 INFO  L93              Difference]: Finished difference Result 9351 states and 17904 transitions.
[2023-12-22 04:31:20,392 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2023-12-22 04:31:20,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 96.94117647058823) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 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 1648
[2023-12-22 04:31:20,411 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:31:20,442 INFO  L225             Difference]: With dead ends: 9351
[2023-12-22 04:31:20,442 INFO  L226             Difference]: Without dead ends: 7231
[2023-12-22 04:31:20,465 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1671 GetRequests, 1632 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=451, Invalid=1189, Unknown=0, NotChecked=0, Total=1640
[2023-12-22 04:31:20,466 INFO  L413           NwaCegarLoop]: 2027 mSDtfsCounter, 11261 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 62939 mSolverCounterSat, 2690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11261 SdHoareTripleChecker+Valid, 3925 SdHoareTripleChecker+Invalid, 65629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2690 IncrementalHoareTripleChecker+Valid, 62939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:31:20,468 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11261 Valid, 3925 Invalid, 65629 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2690 Valid, 62939 Invalid, 0 Unknown, 0 Unchecked, 49.1s Time]
[2023-12-22 04:31:20,482 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7231 states.
[2023-12-22 04:31:20,618 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7231 to 7216.
[2023-12-22 04:31:20,625 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7216 states, 7215 states have (on average 1.4871794871794872) internal successors, (10730), 7215 states have internal predecessors, (10730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:20,640 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7216 states to 7216 states and 10730 transitions.
[2023-12-22 04:31:20,640 INFO  L78                 Accepts]: Start accepts. Automaton has 7216 states and 10730 transitions. Word has length 1648
[2023-12-22 04:31:20,641 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:31:20,641 INFO  L495      AbstractCegarLoop]: Abstraction has 7216 states and 10730 transitions.
[2023-12-22 04:31:20,642 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 96.94117647058823) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:20,642 INFO  L276                IsEmpty]: Start isEmpty. Operand 7216 states and 10730 transitions.
[2023-12-22 04:31:20,666 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1682
[2023-12-22 04:31:20,666 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:31:20,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-22 04:31:20,673 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-22 04:31:20,871 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:31:20,873 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:31:20,876 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:31:20,877 INFO  L85        PathProgramCache]: Analyzing trace with hash 1795608679, now seen corresponding path program 1 times
[2023-12-22 04:31:20,885 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:31:20,885 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204818306]
[2023-12-22 04:31:20,886 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:31:20,886 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:31:20,886 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:31:20,891 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:31:20,904 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-22 04:31:21,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:31:21,368 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:31:21,385 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:31:21,432 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:31:21,432 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:31:21,432 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:31:21,435 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204818306]
[2023-12-22 04:31:21,435 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204818306] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:31:21,435 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:31:21,436 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:31:21,437 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714713422]
[2023-12-22 04:31:21,440 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:31:21,444 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:31:21,444 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:31:21,446 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:31:21,446 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:31:21,446 INFO  L87              Difference]: Start difference. First operand 7216 states and 10730 transitions. Second operand  has 3 states, 3 states have (on average 560.3333333333334) internal successors, (1681), 2 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:28,077 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:31:28,077 INFO  L93              Difference]: Finished difference Result 17931 states and 28171 transitions.
[2023-12-22 04:31:28,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:31:28,081 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 560.3333333333334) internal successors, (1681), 2 states have internal predecessors, (1681), 0 states have call successors, (0), 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 1681
[2023-12-22 04:31:28,081 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:31:28,118 INFO  L225             Difference]: With dead ends: 17931
[2023-12-22 04:31:28,118 INFO  L226             Difference]: Without dead ends: 12342
[2023-12-22 04:31:28,126 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1680 GetRequests, 1679 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:31:28,129 INFO  L413           NwaCegarLoop]: 1550 mSDtfsCounter, 2540 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 4775 mSolverCounterSat, 2066 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 6841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2066 IncrementalHoareTripleChecker+Valid, 4775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:31:28,130 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2540 Valid, 1745 Invalid, 6841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2066 Valid, 4775 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time]
[2023-12-22 04:31:28,138 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12342 states.
[2023-12-22 04:31:28,257 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12342 to 12341.
[2023-12-22 04:31:28,276 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12341 states, 12340 states have (on average 1.3948136142625607) internal successors, (17212), 12340 states have internal predecessors, (17212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:28,293 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12341 states to 12341 states and 17212 transitions.
[2023-12-22 04:31:28,293 INFO  L78                 Accepts]: Start accepts. Automaton has 12341 states and 17212 transitions. Word has length 1681
[2023-12-22 04:31:28,295 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:31:28,295 INFO  L495      AbstractCegarLoop]: Abstraction has 12341 states and 17212 transitions.
[2023-12-22 04:31:28,296 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 560.3333333333334) internal successors, (1681), 2 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:31:28,296 INFO  L276                IsEmpty]: Start isEmpty. Operand 12341 states and 17212 transitions.
[2023-12-22 04:31:28,325 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1758
[2023-12-22 04:31:28,325 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:31:28,326 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:31:28,347 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-22 04:31:28,530 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:31:28,531 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:31:28,531 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:31:28,531 INFO  L85        PathProgramCache]: Analyzing trace with hash 1358509149, now seen corresponding path program 1 times
[2023-12-22 04:31:28,540 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:31:28,540 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054764972]
[2023-12-22 04:31:28,540 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:31:28,540 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:31:28,541 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:31:28,541 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:31:28,551 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-22 04:31:29,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:31:29,030 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-22 04:31:29,051 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:32:36,426 INFO  L134       CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:32:36,426 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:32:36,426 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:32:36,426 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054764972]
[2023-12-22 04:32:36,427 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054764972] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:32:36,427 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:32:36,427 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:32:36,427 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997026400]
[2023-12-22 04:32:36,427 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:32:36,429 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:32:36,431 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:32:36,433 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:32:36,433 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:32:36,433 INFO  L87              Difference]: Start difference. First operand 12341 states and 17212 transitions. Second operand  has 16 states, 16 states have (on average 109.8125) internal successors, (1757), 16 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:09,765 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:33:09,765 INFO  L93              Difference]: Finished difference Result 33066 states and 47144 transitions.
[2023-12-22 04:33:09,765 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2023-12-22 04:33:09,766 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 109.8125) internal successors, (1757), 16 states have internal predecessors, (1757), 0 states have call successors, (0), 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 1757
[2023-12-22 04:33:09,768 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:33:09,812 INFO  L225             Difference]: With dead ends: 33066
[2023-12-22 04:33:09,812 INFO  L226             Difference]: Without dead ends: 22352
[2023-12-22 04:33:09,823 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1776 GetRequests, 1744 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=341, Invalid=781, Unknown=0, NotChecked=0, Total=1122
[2023-12-22 04:33:09,824 INFO  L413           NwaCegarLoop]: 3929 mSDtfsCounter, 8548 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 41078 mSolverCounterSat, 2119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8548 SdHoareTripleChecker+Valid, 5123 SdHoareTripleChecker+Invalid, 43197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2119 IncrementalHoareTripleChecker+Valid, 41078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:33:09,825 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8548 Valid, 5123 Invalid, 43197 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2119 Valid, 41078 Invalid, 0 Unknown, 0 Unchecked, 30.9s Time]
[2023-12-22 04:33:09,841 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22352 states.
[2023-12-22 04:33:09,991 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22352 to 18950.
[2023-12-22 04:33:10,009 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18950 states, 18949 states have (on average 1.2813341073407567) internal successors, (24280), 18949 states have internal predecessors, (24280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:10,031 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18950 states to 18950 states and 24280 transitions.
[2023-12-22 04:33:10,031 INFO  L78                 Accepts]: Start accepts. Automaton has 18950 states and 24280 transitions. Word has length 1757
[2023-12-22 04:33:10,034 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:33:10,034 INFO  L495      AbstractCegarLoop]: Abstraction has 18950 states and 24280 transitions.
[2023-12-22 04:33:10,035 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 109.8125) internal successors, (1757), 16 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:10,035 INFO  L276                IsEmpty]: Start isEmpty. Operand 18950 states and 24280 transitions.
[2023-12-22 04:33:10,070 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1798
[2023-12-22 04:33:10,070 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:33:10,071 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:33:10,078 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-22 04:33:10,279 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:10,279 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:33:10,280 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:33:10,280 INFO  L85        PathProgramCache]: Analyzing trace with hash -372910966, now seen corresponding path program 1 times
[2023-12-22 04:33:10,289 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:33:10,289 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123115216]
[2023-12-22 04:33:10,289 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:33:10,289 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:10,289 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:33:10,290 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:33:10,292 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-22 04:33:10,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:33:10,822 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:33:10,834 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:33:10,856 INFO  L134       CoverageAnalysis]: Checked inductivity of 190 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-12-22 04:33:10,856 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:33:10,856 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:33:10,857 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123115216]
[2023-12-22 04:33:10,857 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123115216] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:33:10,857 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:33:10,857 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:33:10,857 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583922789]
[2023-12-22 04:33:10,857 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:33:10,859 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:33:10,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:33:10,860 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:33:10,860 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:10,860 INFO  L87              Difference]: Start difference. First operand 18950 states and 24280 transitions. Second operand  has 3 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:18,345 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:33:18,345 INFO  L93              Difference]: Finished difference Result 43169 states and 57291 transitions.
[2023-12-22 04:33:18,346 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:33:18,346 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 0 states have call successors, (0), 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 1797
[2023-12-22 04:33:18,346 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:33:18,423 INFO  L225             Difference]: With dead ends: 43169
[2023-12-22 04:33:18,424 INFO  L226             Difference]: Without dead ends: 25846
[2023-12-22 04:33:18,469 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1796 GetRequests, 1795 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:18,470 INFO  L413           NwaCegarLoop]: 3743 mSDtfsCounter, 1869 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 6133 mSolverCounterSat, 1262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 7395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1262 IncrementalHoareTripleChecker+Valid, 6133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:33:18,470 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1869 Valid, 3970 Invalid, 7395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1262 Valid, 6133 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time]
[2023-12-22 04:33:18,495 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25846 states.
[2023-12-22 04:33:18,839 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25846 to 25777.
[2023-12-22 04:33:18,862 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25777 states, 25776 states have (on average 1.2598541278708877) internal successors, (32474), 25776 states have internal predecessors, (32474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:18,892 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25777 states to 25777 states and 32474 transitions.
[2023-12-22 04:33:18,892 INFO  L78                 Accepts]: Start accepts. Automaton has 25777 states and 32474 transitions. Word has length 1797
[2023-12-22 04:33:18,893 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:33:18,893 INFO  L495      AbstractCegarLoop]: Abstraction has 25777 states and 32474 transitions.
[2023-12-22 04:33:18,893 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:18,893 INFO  L276                IsEmpty]: Start isEmpty. Operand 25777 states and 32474 transitions.
[2023-12-22 04:33:18,935 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1805
[2023-12-22 04:33:18,935 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:33:18,936 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:33:18,956 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-12-22 04:33:19,140 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:19,141 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:33:19,141 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:33:19,142 INFO  L85        PathProgramCache]: Analyzing trace with hash 264148508, now seen corresponding path program 1 times
[2023-12-22 04:33:19,150 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:33:19,150 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871734716]
[2023-12-22 04:33:19,151 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:33:19,151 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:19,151 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:33:19,152 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:33:19,152 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-12-22 04:33:19,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:33:19,649 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1896 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:33:19,675 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:33:19,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 205 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-12-22 04:33:19,711 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:33:19,711 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:33:19,711 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871734716]
[2023-12-22 04:33:19,711 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871734716] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:33:19,711 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:33:19,711 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:33:19,711 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056782570]
[2023-12-22 04:33:19,711 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:33:19,713 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:33:19,714 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:33:19,715 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:33:19,715 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:19,716 INFO  L87              Difference]: Start difference. First operand 25777 states and 32474 transitions. Second operand  has 3 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:26,456 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:33:26,456 INFO  L93              Difference]: Finished difference Result 63532 states and 81697 transitions.
[2023-12-22 04:33:26,456 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:33:26,457 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 0 states have call successors, (0), 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 1804
[2023-12-22 04:33:26,457 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:33:26,501 INFO  L225             Difference]: With dead ends: 63532
[2023-12-22 04:33:26,501 INFO  L226             Difference]: Without dead ends: 39382
[2023-12-22 04:33:26,518 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1803 GetRequests, 1802 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:26,518 INFO  L413           NwaCegarLoop]: 3542 mSDtfsCounter, 1953 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 5496 mSolverCounterSat, 1499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 3793 SdHoareTripleChecker+Invalid, 6995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1499 IncrementalHoareTripleChecker+Valid, 5496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:33:26,518 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 3793 Invalid, 6995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1499 Valid, 5496 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time]
[2023-12-22 04:33:26,542 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39382 states.
[2023-12-22 04:33:26,826 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39382 to 39374.
[2023-12-22 04:33:26,853 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39374 states, 39373 states have (on average 1.210651969623854) internal successors, (47667), 39373 states have internal predecessors, (47667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:26,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39374 states to 39374 states and 47667 transitions.
[2023-12-22 04:33:26,895 INFO  L78                 Accepts]: Start accepts. Automaton has 39374 states and 47667 transitions. Word has length 1804
[2023-12-22 04:33:26,896 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:33:26,896 INFO  L495      AbstractCegarLoop]: Abstraction has 39374 states and 47667 transitions.
[2023-12-22 04:33:26,896 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:26,896 INFO  L276                IsEmpty]: Start isEmpty. Operand 39374 states and 47667 transitions.
[2023-12-22 04:33:26,948 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1811
[2023-12-22 04:33:26,948 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:33:26,949 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:33:26,967 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2023-12-22 04:33:27,153 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:27,153 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:33:27,154 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:33:27,154 INFO  L85        PathProgramCache]: Analyzing trace with hash 389952181, now seen corresponding path program 1 times
[2023-12-22 04:33:27,163 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:33:27,163 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901303812]
[2023-12-22 04:33:27,163 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:33:27,163 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:27,164 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:33:27,168 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:33:27,170 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2023-12-22 04:33:27,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:33:27,651 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1902 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:33:27,676 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:33:27,798 INFO  L134       CoverageAnalysis]: Checked inductivity of 229 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked.
[2023-12-22 04:33:27,798 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:33:27,798 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:33:27,798 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901303812]
[2023-12-22 04:33:27,798 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [901303812] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:33:27,798 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:33:27,798 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:33:27,799 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962463624]
[2023-12-22 04:33:27,799 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:33:27,800 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:33:27,800 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:33:27,801 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:33:27,801 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:27,801 INFO  L87              Difference]: Start difference. First operand 39374 states and 47667 transitions. Second operand  has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 2 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:33,383 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:33:33,383 INFO  L93              Difference]: Finished difference Result 77114 states and 93676 transitions.
[2023-12-22 04:33:33,383 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:33:33,384 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 2 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1810
[2023-12-22 04:33:33,384 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:33:33,432 INFO  L225             Difference]: With dead ends: 77114
[2023-12-22 04:33:33,432 INFO  L226             Difference]: Without dead ends: 37669
[2023-12-22 04:33:33,461 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1809 GetRequests, 1808 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:33,463 INFO  L413           NwaCegarLoop]: 1038 mSDtfsCounter, 3080 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 921 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3080 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 5694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 921 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:33:33,463 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3080 Valid, 1119 Invalid, 5694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [921 Valid, 4773 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2023-12-22 04:33:33,492 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37669 states.
[2023-12-22 04:33:33,773 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37669 to 37669.
[2023-12-22 04:33:33,801 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 37669 states, 37668 states have (on average 1.1404375066369332) internal successors, (42958), 37668 states have internal predecessors, (42958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:33,840 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37669 states to 37669 states and 42958 transitions.
[2023-12-22 04:33:33,840 INFO  L78                 Accepts]: Start accepts. Automaton has 37669 states and 42958 transitions. Word has length 1810
[2023-12-22 04:33:33,840 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:33:33,840 INFO  L495      AbstractCegarLoop]: Abstraction has 37669 states and 42958 transitions.
[2023-12-22 04:33:33,841 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 2 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:33,841 INFO  L276                IsEmpty]: Start isEmpty. Operand 37669 states and 42958 transitions.
[2023-12-22 04:33:33,893 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1887
[2023-12-22 04:33:33,894 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:33:33,895 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:33:33,899 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 (8)] Forceful destruction successful, exit code 0
[2023-12-22 04:33:34,099 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:34,099 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:33:34,100 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:33:34,100 INFO  L85        PathProgramCache]: Analyzing trace with hash 90607157, now seen corresponding path program 1 times
[2023-12-22 04:33:34,109 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:33:34,109 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098415750]
[2023-12-22 04:33:34,110 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:33:34,110 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:34,110 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:33:34,111 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:33:34,117 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2023-12-22 04:33:35,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:33:35,109 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1966 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:33:35,121 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:33:35,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 245 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 04:33:35,160 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:33:35,161 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:33:35,161 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098415750]
[2023-12-22 04:33:35,161 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098415750] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:33:35,161 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:33:35,161 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:33:35,161 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879283763]
[2023-12-22 04:33:35,161 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:33:35,163 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:33:35,163 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:33:35,164 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:33:35,164 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:35,164 INFO  L87              Difference]: Start difference. First operand 37669 states and 42958 transitions. Second operand  has 3 states, 3 states have (on average 628.6666666666666) internal successors, (1886), 3 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:42,110 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:33:42,110 INFO  L93              Difference]: Finished difference Result 102578 states and 117013 transitions.
[2023-12-22 04:33:42,110 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:33:42,111 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 628.6666666666666) internal successors, (1886), 3 states have internal predecessors, (1886), 0 states have call successors, (0), 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 1886
[2023-12-22 04:33:42,111 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:33:42,197 INFO  L225             Difference]: With dead ends: 102578
[2023-12-22 04:33:42,197 INFO  L226             Difference]: Without dead ends: 66536
[2023-12-22 04:33:42,222 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1885 GetRequests, 1884 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:42,224 INFO  L413           NwaCegarLoop]: 3250 mSDtfsCounter, 1948 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 5889 mSolverCounterSat, 1077 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1948 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 6966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1077 IncrementalHoareTripleChecker+Valid, 5889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:33:42,224 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1948 Valid, 3586 Invalid, 6966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1077 Valid, 5889 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time]
[2023-12-22 04:33:42,270 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66536 states.
[2023-12-22 04:33:42,810 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66536 to 51250.
[2023-12-22 04:33:42,838 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51250 states, 51249 states have (on average 1.1353587387070967) internal successors, (58186), 51249 states have internal predecessors, (58186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:42,891 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51250 states to 51250 states and 58186 transitions.
[2023-12-22 04:33:42,891 INFO  L78                 Accepts]: Start accepts. Automaton has 51250 states and 58186 transitions. Word has length 1886
[2023-12-22 04:33:42,892 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:33:42,892 INFO  L495      AbstractCegarLoop]: Abstraction has 51250 states and 58186 transitions.
[2023-12-22 04:33:42,892 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 628.6666666666666) internal successors, (1886), 3 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:42,892 INFO  L276                IsEmpty]: Start isEmpty. Operand 51250 states and 58186 transitions.
[2023-12-22 04:33:42,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1891
[2023-12-22 04:33:42,941 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:33:42,942 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:33:42,948 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 (9)] Ended with exit code 0
[2023-12-22 04:33:43,146 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:43,146 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:33:43,147 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:33:43,149 INFO  L85        PathProgramCache]: Analyzing trace with hash 599933127, now seen corresponding path program 1 times
[2023-12-22 04:33:43,158 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:33:43,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886097959]
[2023-12-22 04:33:43,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:33:43,159 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:43,159 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:33:43,160 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:33:43,161 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2023-12-22 04:33:43,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:33:43,844 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1982 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:33:43,854 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:33:43,966 INFO  L134       CoverageAnalysis]: Checked inductivity of 408 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-12-22 04:33:43,966 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:33:43,967 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:33:43,967 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886097959]
[2023-12-22 04:33:43,967 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886097959] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:33:43,967 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:33:43,967 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:33:43,967 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967699653]
[2023-12-22 04:33:43,967 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:33:43,982 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:33:43,982 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:33:43,984 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:33:43,984 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:43,995 INFO  L87              Difference]: Start difference. First operand 51250 states and 58186 transitions. Second operand  has 3 states, 3 states have (on average 618.6666666666666) internal successors, (1856), 3 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:50,295 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:33:50,295 INFO  L93              Difference]: Finished difference Result 136554 states and 155842 transitions.
[2023-12-22 04:33:50,295 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:33:50,296 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 618.6666666666666) internal successors, (1856), 3 states have internal predecessors, (1856), 0 states have call successors, (0), 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 1890
[2023-12-22 04:33:50,296 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:33:50,408 INFO  L225             Difference]: With dead ends: 136554
[2023-12-22 04:33:50,408 INFO  L226             Difference]: Without dead ends: 86931
[2023-12-22 04:33:50,426 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1889 GetRequests, 1888 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:50,426 INFO  L413           NwaCegarLoop]: 1895 mSDtfsCounter, 1763 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 5504 mSolverCounterSat, 1528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 7032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1528 IncrementalHoareTripleChecker+Valid, 5504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:33:50,426 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 2136 Invalid, 7032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1528 Valid, 5504 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2023-12-22 04:33:50,500 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86931 states.
[2023-12-22 04:33:51,310 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86931 to 83524.
[2023-12-22 04:33:51,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83524 states, 83523 states have (on average 1.0978173676711804) internal successors, (91693), 83523 states have internal predecessors, (91693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:51,462 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83524 states to 83524 states and 91693 transitions.
[2023-12-22 04:33:51,462 INFO  L78                 Accepts]: Start accepts. Automaton has 83524 states and 91693 transitions. Word has length 1890
[2023-12-22 04:33:51,462 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:33:51,463 INFO  L495      AbstractCegarLoop]: Abstraction has 83524 states and 91693 transitions.
[2023-12-22 04:33:51,463 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 618.6666666666666) internal successors, (1856), 3 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:51,463 INFO  L276                IsEmpty]: Start isEmpty. Operand 83524 states and 91693 transitions.
[2023-12-22 04:33:51,778 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1893
[2023-12-22 04:33:51,779 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:33:51,779 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:33:51,784 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0
[2023-12-22 04:33:51,983 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:51,984 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:33:51,984 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:33:51,985 INFO  L85        PathProgramCache]: Analyzing trace with hash 438959211, now seen corresponding path program 1 times
[2023-12-22 04:33:51,994 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:33:51,994 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416842442]
[2023-12-22 04:33:51,994 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:33:51,995 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:33:51,995 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:33:51,996 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:33:51,997 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2023-12-22 04:33:52,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:33:52,752 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1974 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:33:52,763 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:33:52,989 INFO  L134       CoverageAnalysis]: Checked inductivity of 257 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2023-12-22 04:33:52,989 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:33:52,989 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:33:52,989 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416842442]
[2023-12-22 04:33:52,990 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416842442] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:33:52,990 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:33:52,990 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:33:52,990 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037466061]
[2023-12-22 04:33:52,990 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:33:52,991 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:33:52,991 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:33:52,993 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:33:52,993 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:52,993 INFO  L87              Difference]: Start difference. First operand 83524 states and 91693 transitions. Second operand  has 3 states, 3 states have (on average 625.6666666666666) internal successors, (1877), 2 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:33:59,791 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:33:59,791 INFO  L93              Difference]: Finished difference Result 179001 states and 195796 transitions.
[2023-12-22 04:33:59,792 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:33:59,793 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 625.6666666666666) internal successors, (1877), 2 states have internal predecessors, (1877), 0 states have call successors, (0), 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 1892
[2023-12-22 04:33:59,793 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:33:59,887 INFO  L225             Difference]: With dead ends: 179001
[2023-12-22 04:33:59,888 INFO  L226             Difference]: Without dead ends: 85200
[2023-12-22 04:33:59,926 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1891 GetRequests, 1890 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:33:59,926 INFO  L413           NwaCegarLoop]: 1466 mSDtfsCounter, 2448 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 4466 mSolverCounterSat, 1699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 6165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1699 IncrementalHoareTripleChecker+Valid, 4466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:33:59,927 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 1596 Invalid, 6165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1699 Valid, 4466 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2023-12-22 04:33:59,992 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85200 states.
[2023-12-22 04:34:00,696 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85200 to 83498.
[2023-12-22 04:34:00,737 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83498 states, 83497 states have (on average 1.058349401774914) internal successors, (88369), 83497 states have internal predecessors, (88369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:00,938 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83498 states to 83498 states and 88369 transitions.
[2023-12-22 04:34:00,938 INFO  L78                 Accepts]: Start accepts. Automaton has 83498 states and 88369 transitions. Word has length 1892
[2023-12-22 04:34:00,938 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:34:00,939 INFO  L495      AbstractCegarLoop]: Abstraction has 83498 states and 88369 transitions.
[2023-12-22 04:34:00,939 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 625.6666666666666) internal successors, (1877), 2 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:00,939 INFO  L276                IsEmpty]: Start isEmpty. Operand 83498 states and 88369 transitions.
[2023-12-22 04:34:01,015 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2035
[2023-12-22 04:34:01,016 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:34:01,017 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:34:01,021 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 (11)] Ended with exit code 0
[2023-12-22 04:34:01,221 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:34:01,221 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:34:01,222 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:34:01,222 INFO  L85        PathProgramCache]: Analyzing trace with hash 690734124, now seen corresponding path program 1 times
[2023-12-22 04:34:01,232 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:34:01,232 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326332843]
[2023-12-22 04:34:01,232 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:34:01,232 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:34:01,232 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:34:01,233 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:34:01,234 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2023-12-22 04:34:01,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:34:01,873 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2141 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:34:01,903 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:34:01,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 583 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked.
[2023-12-22 04:34:01,945 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:34:01,945 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:34:01,945 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326332843]
[2023-12-22 04:34:01,945 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326332843] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:34:01,945 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:34:01,945 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:34:01,946 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778661727]
[2023-12-22 04:34:01,946 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:34:01,947 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:34:01,947 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:34:01,949 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:34:01,949 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:34:01,949 INFO  L87              Difference]: Start difference. First operand 83498 states and 88369 transitions. Second operand  has 3 states, 3 states have (on average 630.6666666666666) internal successors, (1892), 3 states have internal predecessors, (1892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:08,532 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:34:08,532 INFO  L93              Difference]: Finished difference Result 180643 states and 191464 transitions.
[2023-12-22 04:34:08,532 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:34:08,533 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 630.6666666666666) internal successors, (1892), 3 states have internal predecessors, (1892), 0 states have call successors, (0), 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 2034
[2023-12-22 04:34:08,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:34:08,656 INFO  L225             Difference]: With dead ends: 180643
[2023-12-22 04:34:08,656 INFO  L226             Difference]: Without dead ends: 98772
[2023-12-22 04:34:08,689 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2033 GetRequests, 2032 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:34:08,690 INFO  L413           NwaCegarLoop]: 3632 mSDtfsCounter, 1846 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 5121 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 3907 SdHoareTripleChecker+Invalid, 5700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 5121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:34:08,691 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 3907 Invalid, 5700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 5121 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2023-12-22 04:34:08,760 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98772 states.
[2023-12-22 04:34:09,734 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98772 to 98772.
[2023-12-22 04:34:09,787 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98772 states, 98771 states have (on average 1.0542163185550415) internal successors, (104126), 98771 states have internal predecessors, (104126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:10,013 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98772 states to 98772 states and 104126 transitions.
[2023-12-22 04:34:10,013 INFO  L78                 Accepts]: Start accepts. Automaton has 98772 states and 104126 transitions. Word has length 2034
[2023-12-22 04:34:10,014 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:34:10,014 INFO  L495      AbstractCegarLoop]: Abstraction has 98772 states and 104126 transitions.
[2023-12-22 04:34:10,015 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 630.6666666666666) internal successors, (1892), 3 states have internal predecessors, (1892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:10,015 INFO  L276                IsEmpty]: Start isEmpty. Operand 98772 states and 104126 transitions.
[2023-12-22 04:34:10,110 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2060
[2023-12-22 04:34:10,110 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:34:10,111 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:34:10,117 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 (12)] Ended with exit code 0
[2023-12-22 04:34:10,315 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:34:10,316 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:34:10,316 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:34:10,316 INFO  L85        PathProgramCache]: Analyzing trace with hash 247065121, now seen corresponding path program 1 times
[2023-12-22 04:34:10,326 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:34:10,326 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931283926]
[2023-12-22 04:34:10,326 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:34:10,327 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:34:10,327 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:34:10,328 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:34:10,433 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2023-12-22 04:34:11,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:34:11,128 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2183 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:34:11,162 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:34:11,202 INFO  L134       CoverageAnalysis]: Checked inductivity of 692 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked.
[2023-12-22 04:34:11,202 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:34:11,202 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:34:11,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931283926]
[2023-12-22 04:34:11,202 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931283926] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:34:11,202 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:34:11,203 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:34:11,203 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194007257]
[2023-12-22 04:34:11,203 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:34:11,204 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:34:11,204 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:34:11,205 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:34:11,206 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:34:11,206 INFO  L87              Difference]: Start difference. First operand 98772 states and 104126 transitions. Second operand  has 3 states, 3 states have (on average 636.0) internal successors, (1908), 3 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:18,595 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:34:18,595 INFO  L93              Difference]: Finished difference Result 236669 states and 250771 transitions.
[2023-12-22 04:34:18,595 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:34:18,596 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 636.0) internal successors, (1908), 3 states have internal predecessors, (1908), 0 states have call successors, (0), 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 2059
[2023-12-22 04:34:18,596 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:34:18,768 INFO  L225             Difference]: With dead ends: 236669
[2023-12-22 04:34:18,769 INFO  L226             Difference]: Without dead ends: 139524
[2023-12-22 04:34:18,802 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2058 GetRequests, 2057 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:34:18,802 INFO  L413           NwaCegarLoop]: 1932 mSDtfsCounter, 1822 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 5674 mSolverCounterSat, 1372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 7046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1372 IncrementalHoareTripleChecker+Valid, 5674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:34:18,803 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 2192 Invalid, 7046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1372 Valid, 5674 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time]
[2023-12-22 04:34:18,908 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 139524 states.
[2023-12-22 04:34:19,990 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 139524 to 136122.
[2023-12-22 04:34:20,079 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 136122 states, 136121 states have (on average 1.0482291490659046) internal successors, (142686), 136121 states have internal predecessors, (142686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:20,443 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 136122 states to 136122 states and 142686 transitions.
[2023-12-22 04:34:20,444 INFO  L78                 Accepts]: Start accepts. Automaton has 136122 states and 142686 transitions. Word has length 2059
[2023-12-22 04:34:20,444 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:34:20,444 INFO  L495      AbstractCegarLoop]: Abstraction has 136122 states and 142686 transitions.
[2023-12-22 04:34:20,445 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 636.0) internal successors, (1908), 3 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:20,445 INFO  L276                IsEmpty]: Start isEmpty. Operand 136122 states and 142686 transitions.
[2023-12-22 04:34:20,573 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2061
[2023-12-22 04:34:20,574 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:34:20,575 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:34:20,580 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0
[2023-12-22 04:34:20,779 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:34:20,780 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:34:20,780 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:34:20,781 INFO  L85        PathProgramCache]: Analyzing trace with hash 2047638715, now seen corresponding path program 1 times
[2023-12-22 04:34:20,792 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:34:20,793 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816582010]
[2023-12-22 04:34:20,793 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:34:20,793 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:34:20,793 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:34:20,794 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:34:20,795 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2023-12-22 04:34:21,551 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:34:21,559 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2169 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:34:21,570 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:34:21,658 INFO  L134       CoverageAnalysis]: Checked inductivity of 687 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked.
[2023-12-22 04:34:21,658 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:34:21,658 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:34:21,658 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816582010]
[2023-12-22 04:34:21,658 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816582010] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:34:21,658 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:34:21,658 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:34:21,658 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888461980]
[2023-12-22 04:34:21,659 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:34:21,660 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:34:21,660 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:34:21,661 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:34:21,662 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:34:21,662 INFO  L87              Difference]: Start difference. First operand 136122 states and 142686 transitions. Second operand  has 3 states, 3 states have (on average 639.3333333333334) internal successors, (1918), 3 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:28,917 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:34:28,917 INFO  L93              Difference]: Finished difference Result 292694 states and 307946 transitions.
[2023-12-22 04:34:28,917 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:34:28,918 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 639.3333333333334) internal successors, (1918), 3 states have internal predecessors, (1918), 0 states have call successors, (0), 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 2060
[2023-12-22 04:34:28,940 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:34:29,154 INFO  L225             Difference]: With dead ends: 292694
[2023-12-22 04:34:29,154 INFO  L226             Difference]: Without dead ends: 156498
[2023-12-22 04:34:29,199 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2059 GetRequests, 2058 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:34:29,200 INFO  L413           NwaCegarLoop]: 3824 mSDtfsCounter, 1679 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 5449 mSolverCounterSat, 1229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 4042 SdHoareTripleChecker+Invalid, 6678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1229 IncrementalHoareTripleChecker+Valid, 5449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:34:29,200 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 4042 Invalid, 6678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1229 Valid, 5449 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time]
[2023-12-22 04:34:29,320 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156498 states.
[2023-12-22 04:34:30,721 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156498 to 154797.
[2023-12-22 04:34:30,811 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 154797 states, 154796 states have (on average 1.0433861340086308) internal successors, (161512), 154796 states have internal predecessors, (161512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:31,195 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 154797 states to 154797 states and 161512 transitions.
[2023-12-22 04:34:31,195 INFO  L78                 Accepts]: Start accepts. Automaton has 154797 states and 161512 transitions. Word has length 2060
[2023-12-22 04:34:31,195 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:34:31,195 INFO  L495      AbstractCegarLoop]: Abstraction has 154797 states and 161512 transitions.
[2023-12-22 04:34:31,196 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 639.3333333333334) internal successors, (1918), 3 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:34:31,196 INFO  L276                IsEmpty]: Start isEmpty. Operand 154797 states and 161512 transitions.
[2023-12-22 04:34:31,322 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2070
[2023-12-22 04:34:31,322 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:34:31,323 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:34:31,327 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2023-12-22 04:34:31,527 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:34:31,528 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:34:31,528 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:34:31,529 INFO  L85        PathProgramCache]: Analyzing trace with hash 1991675793, now seen corresponding path program 1 times
[2023-12-22 04:34:31,538 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:34:31,538 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606300701]
[2023-12-22 04:34:31,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:34:31,539 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:34:31,539 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:34:31,540 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:34:31,541 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2023-12-22 04:34:32,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:34:32,296 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2163 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-22 04:34:32,312 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:34:59,334 INFO  L134       CoverageAnalysis]: Checked inductivity of 598 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2023-12-22 04:34:59,334 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:34:59,334 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:34:59,334 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606300701]
[2023-12-22 04:34:59,334 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [606300701] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:34:59,334 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:34:59,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 04:34:59,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834652702]
[2023-12-22 04:34:59,334 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:34:59,336 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 04:34:59,336 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:34:59,337 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 04:34:59,337 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:34:59,337 INFO  L87              Difference]: Start difference. First operand 154797 states and 161512 transitions. Second operand  has 4 states, 4 states have (on average 508.5) internal successors, (2034), 4 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:09,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:35:09,176 INFO  L93              Difference]: Finished difference Result 318081 states and 332237 transitions.
[2023-12-22 04:35:09,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 04:35:09,179 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 508.5) internal successors, (2034), 4 states have internal predecessors, (2034), 0 states have call successors, (0), 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 2069
[2023-12-22 04:35:09,181 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:35:09,369 INFO  L225             Difference]: With dead ends: 318081
[2023-12-22 04:35:09,369 INFO  L226             Difference]: Without dead ends: 163256
[2023-12-22 04:35:09,462 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2068 GetRequests, 2066 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-22 04:35:09,465 INFO  L413           NwaCegarLoop]: 1632 mSDtfsCounter, 1962 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 9547 mSolverCounterSat, 1015 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 10562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1015 IncrementalHoareTripleChecker+Valid, 9547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:35:09,466 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 2000 Invalid, 10562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1015 Valid, 9547 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time]
[2023-12-22 04:35:09,595 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163256 states.
[2023-12-22 04:35:11,162 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163256 to 153065.
[2023-12-22 04:35:11,243 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 153065 states, 153064 states have (on average 1.02511367793864) internal successors, (156908), 153064 states have internal predecessors, (156908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:11,806 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 153065 states to 153065 states and 156908 transitions.
[2023-12-22 04:35:11,806 INFO  L78                 Accepts]: Start accepts. Automaton has 153065 states and 156908 transitions. Word has length 2069
[2023-12-22 04:35:11,807 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:35:11,807 INFO  L495      AbstractCegarLoop]: Abstraction has 153065 states and 156908 transitions.
[2023-12-22 04:35:11,807 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 508.5) internal successors, (2034), 4 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:11,807 INFO  L276                IsEmpty]: Start isEmpty. Operand 153065 states and 156908 transitions.
[2023-12-22 04:35:12,111 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2608
[2023-12-22 04:35:12,111 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:35:12,118 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:35:12,136 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2023-12-22 04:35:12,323 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:35:12,323 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:35:12,324 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:35:12,324 INFO  L85        PathProgramCache]: Analyzing trace with hash -1933489769, now seen corresponding path program 1 times
[2023-12-22 04:35:12,337 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:35:12,337 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696601739]
[2023-12-22 04:35:12,337 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:35:12,337 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:35:12,337 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:35:12,338 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:35:12,364 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2023-12-22 04:35:13,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:35:13,213 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2759 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:35:13,228 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:35:13,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 2186 backedges. 1462 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked.
[2023-12-22 04:35:13,301 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:35:13,301 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:35:13,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696601739]
[2023-12-22 04:35:13,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696601739] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:35:13,301 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:35:13,301 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:35:13,301 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944498058]
[2023-12-22 04:35:13,301 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:35:13,303 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:35:13,303 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:35:13,304 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:35:13,304 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:35:13,304 INFO  L87              Difference]: Start difference. First operand 153065 states and 156908 transitions. Second operand  has 3 states, 3 states have (on average 701.6666666666666) internal successors, (2105), 3 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:19,632 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:35:19,633 INFO  L93              Difference]: Finished difference Result 362244 states and 372708 transitions.
[2023-12-22 04:35:19,633 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:35:19,633 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 701.6666666666666) internal successors, (2105), 3 states have internal predecessors, (2105), 0 states have call successors, (0), 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 2607
[2023-12-22 04:35:19,634 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:35:19,885 INFO  L225             Difference]: With dead ends: 362244
[2023-12-22 04:35:19,886 INFO  L226             Difference]: Without dead ends: 209096
[2023-12-22 04:35:20,079 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2606 GetRequests, 2605 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:35:20,079 INFO  L413           NwaCegarLoop]: 3027 mSDtfsCounter, 1750 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 4656 mSolverCounterSat, 951 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 5607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 951 IncrementalHoareTripleChecker+Valid, 4656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:35:20,080 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 3250 Invalid, 5607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [951 Valid, 4656 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time]
[2023-12-22 04:35:20,218 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 209096 states.
[2023-12-22 04:35:21,885 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 209096 to 205690.
[2023-12-22 04:35:21,986 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 205690 states, 205689 states have (on average 1.0214887524369314) internal successors, (210109), 205689 states have internal predecessors, (210109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:22,411 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205690 states to 205690 states and 210109 transitions.
[2023-12-22 04:35:22,411 INFO  L78                 Accepts]: Start accepts. Automaton has 205690 states and 210109 transitions. Word has length 2607
[2023-12-22 04:35:22,412 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:35:22,412 INFO  L495      AbstractCegarLoop]: Abstraction has 205690 states and 210109 transitions.
[2023-12-22 04:35:22,413 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 701.6666666666666) internal successors, (2105), 3 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:22,413 INFO  L276                IsEmpty]: Start isEmpty. Operand 205690 states and 210109 transitions.
[2023-12-22 04:35:22,782 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2653
[2023-12-22 04:35:22,782 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:35:22,783 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:35:22,788 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0
[2023-12-22 04:35:22,988 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:35:22,988 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:35:22,989 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:35:22,989 INFO  L85        PathProgramCache]: Analyzing trace with hash -1739125739, now seen corresponding path program 1 times
[2023-12-22 04:35:23,002 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:35:23,002 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512196935]
[2023-12-22 04:35:23,002 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:35:23,002 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:35:23,002 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:35:23,003 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:35:23,004 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2023-12-22 04:35:23,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:35:23,877 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2820 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:35:23,892 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:35:24,154 INFO  L134       CoverageAnalysis]: Checked inductivity of 2521 backedges. 1870 proven. 0 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked.
[2023-12-22 04:35:24,154 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:35:24,154 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:35:24,154 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512196935]
[2023-12-22 04:35:24,155 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [512196935] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:35:24,155 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:35:24,155 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:35:24,155 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223471475]
[2023-12-22 04:35:24,155 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:35:24,156 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:35:24,156 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:35:24,158 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:35:24,158 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:35:24,158 INFO  L87              Difference]: Start difference. First operand 205690 states and 210109 transitions. Second operand  has 3 states, 3 states have (on average 738.6666666666666) internal successors, (2216), 3 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:31,096 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:35:31,096 INFO  L93              Difference]: Finished difference Result 482839 states and 494304 transitions.
[2023-12-22 04:35:31,097 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:35:31,097 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 738.6666666666666) internal successors, (2216), 3 states have internal predecessors, (2216), 0 states have call successors, (0), 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 2652
[2023-12-22 04:35:31,098 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:35:31,640 INFO  L225             Difference]: With dead ends: 482839
[2023-12-22 04:35:31,640 INFO  L226             Difference]: Without dead ends: 277075
[2023-12-22 04:35:31,698 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2651 GetRequests, 2650 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:35:31,699 INFO  L413           NwaCegarLoop]: 3134 mSDtfsCounter, 1523 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 4877 mSolverCounterSat, 848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 5725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 848 IncrementalHoareTripleChecker+Valid, 4877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:35:31,699 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 3311 Invalid, 5725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [848 Valid, 4877 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time]
[2023-12-22 04:35:31,885 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 277075 states.
[2023-12-22 04:35:34,009 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 277075 to 265121.
[2023-12-22 04:35:34,128 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 265121 states, 265120 states have (on average 1.0193535003017502) internal successors, (270251), 265120 states have internal predecessors, (270251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:34,618 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 265121 states to 265121 states and 270251 transitions.
[2023-12-22 04:35:34,618 INFO  L78                 Accepts]: Start accepts. Automaton has 265121 states and 270251 transitions. Word has length 2652
[2023-12-22 04:35:34,619 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:35:34,619 INFO  L495      AbstractCegarLoop]: Abstraction has 265121 states and 270251 transitions.
[2023-12-22 04:35:34,619 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 738.6666666666666) internal successors, (2216), 3 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:35:34,620 INFO  L276                IsEmpty]: Start isEmpty. Operand 265121 states and 270251 transitions.
[2023-12-22 04:35:34,795 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2722
[2023-12-22 04:35:34,796 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:35:34,797 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:35:34,818 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 (17)] Ended with exit code 0
[2023-12-22 04:35:35,002 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:35:35,002 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:35:35,003 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:35:35,003 INFO  L85        PathProgramCache]: Analyzing trace with hash 1938935562, now seen corresponding path program 1 times
[2023-12-22 04:35:35,188 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:35:35,188 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617310192]
[2023-12-22 04:35:35,188 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:35:35,188 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:35:35,188 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:35:35,189 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:35:35,191 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process
[2023-12-22 04:35:36,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:35:36,170 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2881 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-22 04:35:36,189 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:35:42,543 INFO  L134       CoverageAnalysis]: Checked inductivity of 2168 backedges. 1515 proven. 43 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked.
[2023-12-22 04:35:42,543 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 04:35:49,482 INFO  L134       CoverageAnalysis]: Checked inductivity of 2168 backedges. 1515 proven. 43 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked.
[2023-12-22 04:35:49,483 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:35:49,483 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617310192]
[2023-12-22 04:35:49,483 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [617310192] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 04:35:49,483 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 04:35:49,483 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2023-12-22 04:35:49,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149174538]
[2023-12-22 04:35:49,484 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 04:35:49,486 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-22 04:35:49,486 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:35:49,487 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-22 04:35:49,487 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-22 04:35:49,488 INFO  L87              Difference]: Start difference. First operand 265121 states and 270251 transitions. Second operand  has 6 states, 6 states have (on average 387.0) internal successors, (2322), 6 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:36:01,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:36:01,414 INFO  L93              Difference]: Finished difference Result 552459 states and 563382 transitions.
[2023-12-22 04:36:01,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-22 04:36:01,415 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 387.0) internal successors, (2322), 6 states have internal predecessors, (2322), 0 states have call successors, (0), 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 2721
[2023-12-22 04:36:01,416 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:36:01,720 INFO  L225             Difference]: With dead ends: 552459
[2023-12-22 04:36:01,720 INFO  L226             Difference]: Without dead ends: 268575
[2023-12-22 04:36:01,847 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5442 GetRequests, 5437 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2023-12-22 04:36:01,848 INFO  L413           NwaCegarLoop]: 2672 mSDtfsCounter, 5262 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 15154 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5262 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 15635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 15154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:36:01,850 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5262 Valid, 3419 Invalid, 15635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 15154 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time]
[2023-12-22 04:36:02,072 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 268575 states.
[2023-12-22 04:36:05,136 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 268575 to 266805.
[2023-12-22 04:36:05,316 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 266805 states, 266804 states have (on average 1.0191901170896989) internal successors, (271924), 266804 states have internal predecessors, (271924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:36:05,885 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 266805 states to 266805 states and 271924 transitions.
[2023-12-22 04:36:05,885 INFO  L78                 Accepts]: Start accepts. Automaton has 266805 states and 271924 transitions. Word has length 2721
[2023-12-22 04:36:05,886 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:36:05,886 INFO  L495      AbstractCegarLoop]: Abstraction has 266805 states and 271924 transitions.
[2023-12-22 04:36:05,887 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 387.0) internal successors, (2322), 6 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:36:05,887 INFO  L276                IsEmpty]: Start isEmpty. Operand 266805 states and 271924 transitions.
[2023-12-22 04:36:06,332 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2818
[2023-12-22 04:36:06,332 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:36:06,356 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:36:06,361 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0
[2023-12-22 04:36:06,561 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:36:06,561 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:36:06,562 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:36:06,562 INFO  L85        PathProgramCache]: Analyzing trace with hash 1650516810, now seen corresponding path program 1 times
[2023-12-22 04:36:06,574 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:36:06,575 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057674526]
[2023-12-22 04:36:06,575 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:36:06,575 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:36:06,575 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:36:06,577 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:36:06,628 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2023-12-22 04:36:07,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:36:07,587 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2932 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:36:07,608 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:36:07,711 INFO  L134       CoverageAnalysis]: Checked inductivity of 1256 backedges. 1202 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked.
[2023-12-22 04:36:07,711 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:36:07,712 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:36:07,712 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057674526]
[2023-12-22 04:36:07,712 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057674526] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:36:07,712 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:36:07,712 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:36:07,714 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459416029]
[2023-12-22 04:36:07,714 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:36:07,715 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:36:07,715 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:36:07,717 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:36:07,717 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:36:07,719 INFO  L87              Difference]: Start difference. First operand 266805 states and 271924 transitions. Second operand  has 3 states, 3 states have (on average 923.3333333333334) internal successors, (2770), 3 states have internal predecessors, (2770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:36:13,755 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:36:13,756 INFO  L93              Difference]: Finished difference Result 547274 states and 557729 transitions.
[2023-12-22 04:36:13,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:36:13,756 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 923.3333333333334) internal successors, (2770), 3 states have internal predecessors, (2770), 0 states have call successors, (0), 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 2817
[2023-12-22 04:36:13,757 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:36:14,126 INFO  L225             Difference]: With dead ends: 547274
[2023-12-22 04:36:14,127 INFO  L226             Difference]: Without dead ends: 282096
[2023-12-22 04:36:14,203 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2816 GetRequests, 2815 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:36:14,203 INFO  L413           NwaCegarLoop]: 3043 mSDtfsCounter, 1691 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 4608 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 4761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 4608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:36:14,204 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 3253 Invalid, 4761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 4608 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2023-12-22 04:36:14,628 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 282096 states.
[2023-12-22 04:36:16,836 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 282096 to 278692.
[2023-12-22 04:36:16,985 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 278692 states, 278691 states have (on average 1.018124015486686) internal successors, (283742), 278691 states have internal predecessors, (283742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:36:17,561 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 278692 states to 278692 states and 283742 transitions.
[2023-12-22 04:36:17,562 INFO  L78                 Accepts]: Start accepts. Automaton has 278692 states and 283742 transitions. Word has length 2817
[2023-12-22 04:36:17,562 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:36:17,562 INFO  L495      AbstractCegarLoop]: Abstraction has 278692 states and 283742 transitions.
[2023-12-22 04:36:17,563 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 923.3333333333334) internal successors, (2770), 3 states have internal predecessors, (2770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:36:17,563 INFO  L276                IsEmpty]: Start isEmpty. Operand 278692 states and 283742 transitions.
[2023-12-22 04:36:17,736 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2823
[2023-12-22 04:36:17,736 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:36:17,737 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:36:17,744 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2023-12-22 04:36:17,942 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:36:17,942 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:36:17,943 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:36:17,943 INFO  L85        PathProgramCache]: Analyzing trace with hash 429643537, now seen corresponding path program 1 times
[2023-12-22 04:36:17,955 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:36:17,955 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050083356]
[2023-12-22 04:36:17,955 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:36:17,955 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:36:17,956 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:36:17,956 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:36:17,959 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2023-12-22 04:36:19,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:36:19,167 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2938 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:36:19,182 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:36:19,278 INFO  L134       CoverageAnalysis]: Checked inductivity of 1378 backedges. 1265 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked.
[2023-12-22 04:36:19,278 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:36:19,278 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:36:19,278 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050083356]
[2023-12-22 04:36:19,278 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050083356] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:36:19,278 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:36:19,279 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:36:19,279 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527892209]
[2023-12-22 04:36:19,279 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:36:19,281 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:36:19,281 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:36:19,282 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:36:19,282 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:36:19,283 INFO  L87              Difference]: Start difference. First operand 278692 states and 283742 transitions. Second operand  has 3 states, 3 states have (on average 903.6666666666666) internal successors, (2711), 3 states have internal predecessors, (2711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:36:26,473 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:36:26,473 INFO  L93              Difference]: Finished difference Result 623686 states and 636306 transitions.
[2023-12-22 04:36:26,473 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:36:26,474 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 903.6666666666666) internal successors, (2711), 3 states have internal predecessors, (2711), 0 states have call successors, (0), 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 2822
[2023-12-22 04:36:26,475 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:36:26,935 INFO  L225             Difference]: With dead ends: 623686
[2023-12-22 04:36:26,935 INFO  L226             Difference]: Without dead ends: 334696
[2023-12-22 04:36:27,106 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2821 GetRequests, 2820 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:36:27,107 INFO  L413           NwaCegarLoop]: 2981 mSDtfsCounter, 1775 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4499 mSolverCounterSat, 911 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 5410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 911 IncrementalHoareTripleChecker+Valid, 4499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:36:27,107 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1775 Valid, 3165 Invalid, 5410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [911 Valid, 4499 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2023-12-22 04:36:27,638 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 334696 states.
[2023-12-22 04:36:30,449 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 334696 to 332984.
[2023-12-22 04:36:30,608 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 332984 states, 332983 states have (on average 1.0156404381004436) internal successors, (338191), 332983 states have internal predecessors, (338191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:36:31,154 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 332984 states to 332984 states and 338191 transitions.
[2023-12-22 04:36:31,154 INFO  L78                 Accepts]: Start accepts. Automaton has 332984 states and 338191 transitions. Word has length 2822
[2023-12-22 04:36:31,155 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:36:31,155 INFO  L495      AbstractCegarLoop]: Abstraction has 332984 states and 338191 transitions.
[2023-12-22 04:36:31,155 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 903.6666666666666) internal successors, (2711), 3 states have internal predecessors, (2711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:36:31,155 INFO  L276                IsEmpty]: Start isEmpty. Operand 332984 states and 338191 transitions.
[2023-12-22 04:36:31,682 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3053
[2023-12-22 04:36:31,682 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:36:31,683 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:36:31,692 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2023-12-22 04:36:31,888 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:36:31,889 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:36:31,889 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:36:31,916 INFO  L85        PathProgramCache]: Analyzing trace with hash -375721380, now seen corresponding path program 1 times
[2023-12-22 04:36:31,930 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:36:31,930 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731434401]
[2023-12-22 04:36:31,930 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:36:31,930 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:36:31,930 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:36:31,944 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 04:36:31,961 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2023-12-22 04:36:32,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:36:32,963 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3156 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:36:32,979 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:36:33,015 INFO  L134       CoverageAnalysis]: Checked inductivity of 1774 backedges. 1408 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked.
[2023-12-22 04:36:33,015 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:36:33,015 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:36:33,015 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731434401]
[2023-12-22 04:36:33,015 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [731434401] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:36:33,016 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:36:33,016 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:36:33,016 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193051399]
[2023-12-22 04:36:33,016 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:36:33,018 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:36:33,018 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:36:33,019 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:36:33,019 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:36:33,020 INFO  L87              Difference]: Start difference. First operand 332984 states and 338191 transitions. Second operand  has 3 states, 3 states have (on average 895.6666666666666) internal successors, (2687), 3 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:36:40,328 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:36:40,328 INFO  L93              Difference]: Finished difference Result 671126 states and 681560 transitions.
[2023-12-22 04:36:40,328 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:36:40,329 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 895.6666666666666) internal successors, (2687), 3 states have internal predecessors, (2687), 0 states have call successors, (0), 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 3052
[2023-12-22 04:36:40,330 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:36:40,788 INFO  L225             Difference]: With dead ends: 671126
[2023-12-22 04:36:40,788 INFO  L226             Difference]: Without dead ends: 324441
[2023-12-22 04:36:40,907 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3051 GetRequests, 3050 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:36:40,908 INFO  L413           NwaCegarLoop]: 2693 mSDtfsCounter, 1971 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 4268 mSolverCounterSat, 852 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 5120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 852 IncrementalHoareTripleChecker+Valid, 4268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:36:40,909 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 2836 Invalid, 5120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [852 Valid, 4268 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2023-12-22 04:36:41,208 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 324441 states.