/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_label01.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 04:11:47,648 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 04:11:47,719 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 04:11:47,723 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 04:11:47,723 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 04:11:47,744 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 04:11:47,745 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 04:11:47,745 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 04:11:47,746 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 04:11:47,748 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 04:11:47,749 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 04:11:47,749 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 04:11:47,750 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 04:11:47,750 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 04:11:47,751 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 04:11:47,751 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 04:11:47,751 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 04:11:47,751 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 04:11:47,752 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 04:11:47,752 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 04:11:47,752 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 04:11:47,752 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 04:11:47,753 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 04:11:47,753 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 04:11:47,753 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 04:11:47,753 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 04:11:47,753 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 04:11:47,753 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 04:11:47,754 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 04:11:47,754 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 04:11:47,755 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 04:11:47,755 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 04:11:47,755 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 04:11:47,755 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 04:11:47,755 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:11:47,755 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 04:11:47,755 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 04:11:47,755 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 04:11:47,756 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 04:11:47,756 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 04:11:47,756 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 04:11:47,756 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 04:11:47,756 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 04:11:47,756 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 04:11:47,757 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 04:11:47,757 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 04:11:47,757 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 04:11:47,947 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 04:11:47,964 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 04:11:47,966 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 04:11:47,966 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 04:11:47,967 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 04:11:47,968 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label01.c
[2023-12-22 04:11:48,952 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 04:11:49,385 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 04:11:49,386 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label01.c
[2023-12-22 04:11:49,416 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62668126b/768f12ab6e4f41c79950f1c095082683/FLAG582144d18
[2023-12-22 04:11:49,436 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62668126b/768f12ab6e4f41c79950f1c095082683
[2023-12-22 04:11:49,438 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 04:11:49,439 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 04:11:49,441 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 04:11:49,441 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 04:11:49,444 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 04:11:49,445 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:11:49" (1/1) ...
[2023-12-22 04:11:49,445 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf92f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:49, skipping insertion in model container
[2023-12-22 04:11:49,445 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:11:49" (1/1) ...
[2023-12-22 04:11:49,586 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 04:11:50,834 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_label01.c[375772,375785]
[2023-12-22 04:11:50,855 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:11:50,865 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 04:11:51,437 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_label01.c[375772,375785]
[2023-12-22 04:11:51,445 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 04:11:51,481 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 04:11:51,482 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51 WrapperNode
[2023-12-22 04:11:51,482 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 04:11:51,483 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 04:11:51,483 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 04:11:51,483 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 04:11:51,487 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:51,542 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:51,843 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12345
[2023-12-22 04:11:51,843 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 04:11:51,844 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 04:11:51,844 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 04:11:51,844 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 04:11:51,851 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:51,852 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:51,895 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:51,971 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 04:11:51,971 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:51,972 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:52,106 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:52,139 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:52,159 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:52,172 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:52,210 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 04:11:52,211 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 04:11:52,211 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 04:11:52,211 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 04:11:52,212 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (1/1) ...
[2023-12-22 04:11:52,215 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 04:11:52,222 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 04:11:52,232 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 04:11:52,250 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 04:11:52,254 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 04:11:52,254 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 04:11:52,254 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 04:11:52,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 04:11:52,329 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 04:11:52,330 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 04:11:59,496 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 04:11:59,566 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 04:11:59,566 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 04:11:59,566 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:11:59 BoogieIcfgContainer
[2023-12-22 04:11:59,566 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 04:11:59,568 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 04:11:59,568 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 04:11:59,570 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 04:11:59,570 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:11:49" (1/3) ...
[2023-12-22 04:11:59,570 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d22d93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:11:59, skipping insertion in model container
[2023-12-22 04:11:59,570 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:11:51" (2/3) ...
[2023-12-22 04:11:59,571 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d22d93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:11:59, skipping insertion in model container
[2023-12-22 04:11:59,571 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:11:59" (3/3) ...
[2023-12-22 04:11:59,571 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label01.c
[2023-12-22 04:11:59,590 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 04:11:59,590 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 04:11:59,652 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 04:11:59,657 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;@63e5de77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 04:11:59,657 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 04:11:59,666 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 04:11:59,731 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1644
[2023-12-22 04:11:59,731 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:11:59,732 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]
[2023-12-22 04:11:59,733 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:11:59,736 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:11:59,737 INFO  L85        PathProgramCache]: Analyzing trace with hash -507439522, now seen corresponding path program 1 times
[2023-12-22 04:11:59,765 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:11:59,765 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980496510]
[2023-12-22 04:11:59,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:11:59,766 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 04:11:59,766 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:11:59,768 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 04:11:59,788 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 04:12:00,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:12:00,356 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 04:12:00,390 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:12:00,470 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 04:12:00,470 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:12:00,471 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:12:00,471 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980496510]
[2023-12-22 04:12:00,471 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980496510] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:12:00,471 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:12:00,472 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:12:00,473 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265622767]
[2023-12-22 04:12:00,473 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:12:00,480 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 04:12:00,480 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:12:00,506 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 04:12:00,506 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 04:12:00,512 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 821.5) internal successors, (1643), 2 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states 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 04:12:00,599 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:12:00,599 INFO  L93              Difference]: Finished difference Result 4245 states and 8043 transitions.
[2023-12-22 04:12:00,601 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 04:12:00,603 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 821.5) internal successors, (1643), 2 states have internal predecessors, (1643), 0 states have call successors, (0), 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 1643
[2023-12-22 04:12:00,607 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:12:00,627 INFO  L225             Difference]: With dead ends: 4245
[2023-12-22 04:12:00,627 INFO  L226             Difference]: Without dead ends: 2121
[2023-12-22 04:12:00,635 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1642 GetRequests, 1642 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 04:12:00,637 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 04:12:00,639 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 04:12:00,652 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2121 states.
[2023-12-22 04:12:00,711 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121.
[2023-12-22 04:12:00,715 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 04:12:00,719 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3957 transitions.
[2023-12-22 04:12:00,720 INFO  L78                 Accepts]: Start accepts. Automaton has 2121 states and 3957 transitions. Word has length 1643
[2023-12-22 04:12:00,722 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:12:00,722 INFO  L495      AbstractCegarLoop]: Abstraction has 2121 states and 3957 transitions.
[2023-12-22 04:12:00,723 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 821.5) internal successors, (1643), 2 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states 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 04:12:00,723 INFO  L276                IsEmpty]: Start isEmpty. Operand 2121 states and 3957 transitions.
[2023-12-22 04:12:00,767 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1644
[2023-12-22 04:12:00,768 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:12:00,768 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]
[2023-12-22 04:12:00,775 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-22 04:12:00,973 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 04:12:00,974 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:12:00,974 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:12:00,975 INFO  L85        PathProgramCache]: Analyzing trace with hash 1774334056, now seen corresponding path program 1 times
[2023-12-22 04:12:00,988 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:12:00,988 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018770246]
[2023-12-22 04:12:00,988 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:12:01,004 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 04:12:01,004 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:12:01,005 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 04:12:01,011 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 04:12:01,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:12:01,567 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-22 04:12:01,602 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:12:44,396 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 04:12:44,397 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:12:44,397 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:12:44,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018770246]
[2023-12-22 04:12:44,397 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018770246] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:12:44,397 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:12:44,397 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:12:44,398 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318250636]
[2023-12-22 04:12:44,398 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:12:44,400 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-22 04:12:44,400 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:12:44,402 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-22 04:12:44,402 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240
[2023-12-22 04:12:44,403 INFO  L87              Difference]: Start difference. First operand 2121 states and 3957 transitions. Second operand  has 16 states, 16 states have (on average 102.6875) internal successors, (1643), 15 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states 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 04:13:06,354 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:13:06,354 INFO  L93              Difference]: Finished difference Result 5867 states and 11163 transitions.
[2023-12-22 04:13:06,355 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-22 04:13:06,355 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 102.6875) internal successors, (1643), 15 states have internal predecessors, (1643), 0 states have call successors, (0), 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 1643
[2023-12-22 04:13:06,360 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:13:06,375 INFO  L225             Difference]: With dead ends: 5867
[2023-12-22 04:13:06,376 INFO  L226             Difference]: Without dead ends: 3747
[2023-12-22 04:13:06,379 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1653 GetRequests, 1628 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702
[2023-12-22 04:13:06,380 INFO  L413           NwaCegarLoop]: 2327 mSDtfsCounter, 8708 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 35657 mSolverCounterSat, 1618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8708 SdHoareTripleChecker+Valid, 4316 SdHoareTripleChecker+Invalid, 37275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1618 IncrementalHoareTripleChecker+Valid, 35657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:13:06,381 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8708 Valid, 4316 Invalid, 37275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1618 Valid, 35657 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time]
[2023-12-22 04:13:06,387 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3747 states.
[2023-12-22 04:13:06,441 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3747.
[2023-12-22 04:13:06,445 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3747 states, 3746 states have (on average 1.4917245061398825) internal successors, (5588), 3746 states have internal predecessors, (5588), 0 states have call successors, (0), 0 states 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 04:13:06,453 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3747 states to 3747 states and 5588 transitions.
[2023-12-22 04:13:06,453 INFO  L78                 Accepts]: Start accepts. Automaton has 3747 states and 5588 transitions. Word has length 1643
[2023-12-22 04:13:06,456 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:13:06,456 INFO  L495      AbstractCegarLoop]: Abstraction has 3747 states and 5588 transitions.
[2023-12-22 04:13:06,457 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 102.6875) internal successors, (1643), 15 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states 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 04:13:06,457 INFO  L276                IsEmpty]: Start isEmpty. Operand 3747 states and 5588 transitions.
[2023-12-22 04:13:06,478 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1753
[2023-12-22 04:13:06,478 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:13:06,479 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]
[2023-12-22 04:13:06,486 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 04:13:06,683 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 04:13:06,683 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:13:06,683 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:13:06,684 INFO  L85        PathProgramCache]: Analyzing trace with hash -1919592082, now seen corresponding path program 1 times
[2023-12-22 04:13:06,698 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:13:06,698 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062154162]
[2023-12-22 04:13:06,698 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:13:06,699 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 04:13:06,699 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:13:06,700 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 04:13:06,722 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 04:13:07,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:13:07,231 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-22 04:13:07,267 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:14:31,344 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 04:14:31,344 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:14:31,344 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:14:31,344 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062154162]
[2023-12-22 04:14:31,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062154162] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:14:31,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:14:31,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2023-12-22 04:14:31,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776660573]
[2023-12-22 04:14:31,345 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:14:31,346 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-22 04:14:31,346 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:14:31,348 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-22 04:14:31,348 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272
[2023-12-22 04:14:31,349 INFO  L87              Difference]: Start difference. First operand 3747 states and 5588 transitions. Second operand  has 17 states, 17 states have (on average 103.05882352941177) internal successors, (1752), 16 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states 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 04:15:17,534 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:15:17,535 INFO  L93              Difference]: Finished difference Result 14404 states and 26196 transitions.
[2023-12-22 04:15:17,535 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-22 04:15:17,536 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 103.05882352941177) internal successors, (1752), 16 states have internal predecessors, (1752), 0 states have call successors, (0), 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 1752
[2023-12-22 04:15:17,538 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:15:17,571 INFO  L225             Difference]: With dead ends: 14404
[2023-12-22 04:15:17,571 INFO  L226             Difference]: Without dead ends: 12284
[2023-12-22 04:15:17,577 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1776 GetRequests, 1736 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722
[2023-12-22 04:15:17,579 INFO  L413           NwaCegarLoop]: 2462 mSDtfsCounter, 13919 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 57717 mSolverCounterSat, 5073 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13919 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 62790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5073 IncrementalHoareTripleChecker+Valid, 57717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:15:17,580 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13919 Valid, 3128 Invalid, 62790 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5073 Valid, 57717 Invalid, 0 Unknown, 0 Unchecked, 43.1s Time]
[2023-12-22 04:15:17,589 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12284 states.
[2023-12-22 04:15:17,708 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12284 to 12177.
[2023-12-22 04:15:17,730 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12177 states, 12176 states have (on average 1.265275952693824) internal successors, (15406), 12176 states have internal predecessors, (15406), 0 states have call successors, (0), 0 states 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 04:15:17,746 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 15406 transitions.
[2023-12-22 04:15:17,746 INFO  L78                 Accepts]: Start accepts. Automaton has 12177 states and 15406 transitions. Word has length 1752
[2023-12-22 04:15:17,748 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:15:17,748 INFO  L495      AbstractCegarLoop]: Abstraction has 12177 states and 15406 transitions.
[2023-12-22 04:15:17,749 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 103.05882352941177) internal successors, (1752), 16 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states 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 04:15:17,749 INFO  L276                IsEmpty]: Start isEmpty. Operand 12177 states and 15406 transitions.
[2023-12-22 04:15:17,781 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1789
[2023-12-22 04:15:17,782 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:15:17,782 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:15:17,789 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 04:15:17,986 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 04:15:17,989 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:15:17,989 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:15:17,990 INFO  L85        PathProgramCache]: Analyzing trace with hash 916246821, now seen corresponding path program 1 times
[2023-12-22 04:15:17,998 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:15:17,998 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963281833]
[2023-12-22 04:15:17,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:15:17,999 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 04:15:17,999 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:15:18,000 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 04:15:18,003 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 04:15:18,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:15:18,521 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1865 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 04:15:18,540 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:17:04,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 179 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-12-22 04:17:04,685 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:17:04,685 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:17:04,685 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963281833]
[2023-12-22 04:17:04,685 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963281833] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:17:04,685 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:17:04,686 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-22 04:17:04,686 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621208607]
[2023-12-22 04:17:04,686 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:17:04,687 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-12-22 04:17:04,687 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:17:04,689 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-12-22 04:17:04,689 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210
[2023-12-22 04:17:04,690 INFO  L87              Difference]: Start difference. First operand 12177 states and 15406 transitions. Second operand  has 15 states, 15 states have (on average 116.93333333333334) internal successors, (1754), 15 states have internal predecessors, (1754), 0 states have call successors, (0), 0 states 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 04:17:34,759 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:17:34,759 INFO  L93              Difference]: Finished difference Result 38610 states and 53203 transitions.
[2023-12-22 04:17:34,760 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-22 04:17:34,760 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 116.93333333333334) internal successors, (1754), 15 states have internal predecessors, (1754), 0 states have call successors, (0), 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 1788
[2023-12-22 04:17:34,762 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:17:34,813 INFO  L225             Difference]: With dead ends: 38610
[2023-12-22 04:17:34,813 INFO  L226             Difference]: Without dead ends: 28060
[2023-12-22 04:17:34,825 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1807 GetRequests, 1776 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=325, Invalid=731, Unknown=0, NotChecked=0, Total=1056
[2023-12-22 04:17:34,825 INFO  L413           NwaCegarLoop]: 609 mSDtfsCounter, 9178 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 27992 mSolverCounterSat, 4620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9178 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 32612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4620 IncrementalHoareTripleChecker+Valid, 27992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:17:34,826 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9178 Valid, 1451 Invalid, 32612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4620 Valid, 27992 Invalid, 0 Unknown, 0 Unchecked, 27.0s Time]
[2023-12-22 04:17:34,845 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28060 states.
[2023-12-22 04:17:35,113 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28060 to 28043.
[2023-12-22 04:17:35,139 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28043 states, 28042 states have (on average 1.2223807146423222) internal successors, (34278), 28042 states have internal predecessors, (34278), 0 states have call successors, (0), 0 states 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 04:17:35,170 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28043 states to 28043 states and 34278 transitions.
[2023-12-22 04:17:35,171 INFO  L78                 Accepts]: Start accepts. Automaton has 28043 states and 34278 transitions. Word has length 1788
[2023-12-22 04:17:35,172 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:17:35,172 INFO  L495      AbstractCegarLoop]: Abstraction has 28043 states and 34278 transitions.
[2023-12-22 04:17:35,173 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 116.93333333333334) internal successors, (1754), 15 states have internal predecessors, (1754), 0 states have call successors, (0), 0 states 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 04:17:35,173 INFO  L276                IsEmpty]: Start isEmpty. Operand 28043 states and 34278 transitions.
[2023-12-22 04:17:35,220 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1845
[2023-12-22 04:17:35,220 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:17:35,221 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:17:35,240 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 04:17:35,425 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 04:17:35,426 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:17:35,426 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:17:35,426 INFO  L85        PathProgramCache]: Analyzing trace with hash 2007048140, now seen corresponding path program 1 times
[2023-12-22 04:17:35,435 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:17:35,435 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505760854]
[2023-12-22 04:17:35,435 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:17:35,435 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 04:17:35,436 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:17:35,437 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 04:17:35,464 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 04:17:35,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:17:35,949 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1951 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:17:35,962 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:17:36,150 INFO  L134       CoverageAnalysis]: Checked inductivity of 331 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2023-12-22 04:17:36,150 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:17:36,150 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:17:36,150 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505760854]
[2023-12-22 04:17:36,150 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505760854] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:17:36,150 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:17:36,150 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 04:17:36,151 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247230682]
[2023-12-22 04:17:36,151 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:17:36,152 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:17:36,152 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:17:36,153 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:17:36,153 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:17:36,154 INFO  L87              Difference]: Start difference. First operand 28043 states and 34278 transitions. Second operand  has 3 states, 3 states have (on average 586.0) internal successors, (1758), 2 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:17:43,070 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:17:43,070 INFO  L93              Difference]: Finished difference Result 59547 states and 76075 transitions.
[2023-12-22 04:17:43,071 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:17:43,084 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 586.0) internal successors, (1758), 2 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1844
[2023-12-22 04:17:43,084 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:17:43,132 INFO  L225             Difference]: With dead ends: 59547
[2023-12-22 04:17:43,133 INFO  L226             Difference]: Without dead ends: 33131
[2023-12-22 04:17:43,157 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1843 GetRequests, 1842 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 04:17:43,158 INFO  L413           NwaCegarLoop]: 1082 mSDtfsCounter, 3082 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 2105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 6878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2105 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:17:43,159 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3082 Valid, 1169 Invalid, 6878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2105 Valid, 4773 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time]
[2023-12-22 04:17:43,185 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33131 states.
[2023-12-22 04:17:43,431 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33131 to 30229.
[2023-12-22 04:17:43,456 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30229 states, 30228 states have (on average 1.28397512240307) internal successors, (38812), 30228 states have internal predecessors, (38812), 0 states have call successors, (0), 0 states 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 04:17:43,489 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30229 states to 30229 states and 38812 transitions.
[2023-12-22 04:17:43,489 INFO  L78                 Accepts]: Start accepts. Automaton has 30229 states and 38812 transitions. Word has length 1844
[2023-12-22 04:17:43,490 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:17:43,490 INFO  L495      AbstractCegarLoop]: Abstraction has 30229 states and 38812 transitions.
[2023-12-22 04:17:43,490 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 586.0) internal successors, (1758), 2 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:17:43,491 INFO  L276                IsEmpty]: Start isEmpty. Operand 30229 states and 38812 transitions.
[2023-12-22 04:17:43,550 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1853
[2023-12-22 04:17:43,553 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:17:43,557 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:17:43,564 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 04:17:43,761 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 04:17:43,763 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:17:43,763 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:17:43,763 INFO  L85        PathProgramCache]: Analyzing trace with hash 411791112, now seen corresponding path program 1 times
[2023-12-22 04:17:43,772 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:17:43,772 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191024832]
[2023-12-22 04:17:43,772 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:17:43,773 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 04:17:43,773 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:17:43,774 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 04:17:43,776 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 04:17:44,261 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:17:44,268 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1961 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:17:44,282 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:17:44,412 INFO  L134       CoverageAnalysis]: Checked inductivity of 351 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2023-12-22 04:17:44,412 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:17:44,412 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:17:44,412 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191024832]
[2023-12-22 04:17:44,412 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [191024832] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:17:44,412 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:17:44,413 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:17:44,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059139801]
[2023-12-22 04:17:44,413 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:17:44,414 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:17:44,414 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:17:44,415 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:17:44,415 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:17:44,416 INFO  L87              Difference]: Start difference. First operand 30229 states and 38812 transitions. Second operand  has 3 states, 3 states have (on average 604.3333333333334) internal successors, (1813), 3 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states 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 04:17:50,990 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:17:50,990 INFO  L93              Difference]: Finished difference Result 68522 states and 89858 transitions.
[2023-12-22 04:17:50,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:17:50,991 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 604.3333333333334) internal successors, (1813), 3 states have internal predecessors, (1813), 0 states have call successors, (0), 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 1852
[2023-12-22 04:17:50,992 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:17:51,048 INFO  L225             Difference]: With dead ends: 68522
[2023-12-22 04:17:51,049 INFO  L226             Difference]: Without dead ends: 39920
[2023-12-22 04:17:51,077 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1851 GetRequests, 1850 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 04:17:51,078 INFO  L413           NwaCegarLoop]: 1673 mSDtfsCounter, 2409 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4806 mSolverCounterSat, 1702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 6508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1702 IncrementalHoareTripleChecker+Valid, 4806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time
[2023-12-22 04:17:51,079 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2409 Valid, 1858 Invalid, 6508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1702 Valid, 4806 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time]
[2023-12-22 04:17:51,106 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39920 states.
[2023-12-22 04:17:51,385 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39920 to 39919.
[2023-12-22 04:17:51,413 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39919 states, 39918 states have (on average 1.1731299163284734) internal successors, (46829), 39918 states have internal predecessors, (46829), 0 states have call successors, (0), 0 states 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 04:17:51,453 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39919 states to 39919 states and 46829 transitions.
[2023-12-22 04:17:51,454 INFO  L78                 Accepts]: Start accepts. Automaton has 39919 states and 46829 transitions. Word has length 1852
[2023-12-22 04:17:51,454 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:17:51,454 INFO  L495      AbstractCegarLoop]: Abstraction has 39919 states and 46829 transitions.
[2023-12-22 04:17:51,456 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 604.3333333333334) internal successors, (1813), 3 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states 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 04:17:51,456 INFO  L276                IsEmpty]: Start isEmpty. Operand 39919 states and 46829 transitions.
[2023-12-22 04:17:51,506 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1864
[2023-12-22 04:17:51,506 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:17:51,507 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:17:51,515 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 04:17:51,715 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 04:17:51,716 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:17:51,716 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:17:51,717 INFO  L85        PathProgramCache]: Analyzing trace with hash 919618048, now seen corresponding path program 1 times
[2023-12-22 04:17:51,725 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:17:51,725 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104760335]
[2023-12-22 04:17:51,726 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:17:51,726 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 04:17:51,726 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:17:51,727 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 04:17:51,728 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 04:17:52,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:17:52,223 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1971 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:17:52,234 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:17:52,634 INFO  L134       CoverageAnalysis]: Checked inductivity of 373 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2023-12-22 04:17:52,634 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:17:52,634 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:17:52,635 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104760335]
[2023-12-22 04:17:52,635 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104760335] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:17:52,635 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:17:52,635 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:17:52,635 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48599281]
[2023-12-22 04:17:52,636 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:17:52,637 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:17:52,637 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:17:52,638 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:17:52,638 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:17:52,639 INFO  L87              Difference]: Start difference. First operand 39919 states and 46829 transitions. Second operand  has 3 states, 3 states have (on average 608.3333333333334) internal successors, (1825), 3 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states 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 04:17:59,989 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:17:59,989 INFO  L93              Difference]: Finished difference Result 88419 states and 105552 transitions.
[2023-12-22 04:17:59,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:17:59,990 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 608.3333333333334) internal successors, (1825), 3 states have internal predecessors, (1825), 0 states have call successors, (0), 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 1863
[2023-12-22 04:17:59,990 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:18:00,044 INFO  L225             Difference]: With dead ends: 88419
[2023-12-22 04:18:00,045 INFO  L226             Difference]: Without dead ends: 48429
[2023-12-22 04:18:00,064 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1862 GetRequests, 1861 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 04:18:00,065 INFO  L413           NwaCegarLoop]: 3905 mSDtfsCounter, 1662 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 5548 mSolverCounterSat, 1557 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 7105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1557 IncrementalHoareTripleChecker+Valid, 5548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:18:00,066 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 4130 Invalid, 7105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1557 Valid, 5548 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time]
[2023-12-22 04:18:00,102 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 48429 states.
[2023-12-22 04:18:00,406 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 48429 to 48415.
[2023-12-22 04:18:00,437 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 48415 states, 48414 states have (on average 1.1481183128847028) internal successors, (55585), 48414 states have internal predecessors, (55585), 0 states have call successors, (0), 0 states 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 04:18:00,483 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 48415 states to 48415 states and 55585 transitions.
[2023-12-22 04:18:00,483 INFO  L78                 Accepts]: Start accepts. Automaton has 48415 states and 55585 transitions. Word has length 1863
[2023-12-22 04:18:00,483 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:18:00,483 INFO  L495      AbstractCegarLoop]: Abstraction has 48415 states and 55585 transitions.
[2023-12-22 04:18:00,484 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 608.3333333333334) internal successors, (1825), 3 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states 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 04:18:00,484 INFO  L276                IsEmpty]: Start isEmpty. Operand 48415 states and 55585 transitions.
[2023-12-22 04:18:00,544 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2028
[2023-12-22 04:18:00,545 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:18:00,545 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:18:00,552 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0
[2023-12-22 04:18:00,752 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 04:18:00,752 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:18:00,753 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:18:00,753 INFO  L85        PathProgramCache]: Analyzing trace with hash 1353108356, now seen corresponding path program 1 times
[2023-12-22 04:18:00,762 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:18:00,763 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366704263]
[2023-12-22 04:18:00,763 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:18:00,763 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 04:18:00,763 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:18:00,764 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 04:18:00,764 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 04:18:01,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:18:01,294 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2138 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:18:01,305 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:18:01,330 INFO  L134       CoverageAnalysis]: Checked inductivity of 575 backedges. 396 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked.
[2023-12-22 04:18:01,330 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:18:01,330 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:18:01,330 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366704263]
[2023-12-22 04:18:01,330 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [366704263] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:18:01,330 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:18:01,331 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:18:01,331 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100386258]
[2023-12-22 04:18:01,331 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:18:01,332 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:18:01,332 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:18:01,333 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:18:01,333 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:18:01,334 INFO  L87              Difference]: Start difference. First operand 48415 states and 55585 transitions. Second operand  has 3 states, 3 states have (on average 628.3333333333334) internal successors, (1885), 3 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states 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 04:18:08,329 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:18:08,329 INFO  L93              Difference]: Finished difference Result 105461 states and 121576 transitions.
[2023-12-22 04:18:08,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:18:08,330 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 628.3333333333334) internal successors, (1885), 3 states have internal predecessors, (1885), 0 states have call successors, (0), 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 2027
[2023-12-22 04:18:08,331 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:18:08,405 INFO  L225             Difference]: With dead ends: 105461
[2023-12-22 04:18:08,406 INFO  L226             Difference]: Without dead ends: 58673
[2023-12-22 04:18:08,440 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2026 GetRequests, 2025 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 04:18:08,441 INFO  L413           NwaCegarLoop]: 3547 mSDtfsCounter, 1866 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 5282 mSolverCounterSat, 1804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 3787 SdHoareTripleChecker+Invalid, 7086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1804 IncrementalHoareTripleChecker+Valid, 5282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time
[2023-12-22 04:18:08,442 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 3787 Invalid, 7086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1804 Valid, 5282 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time]
[2023-12-22 04:18:08,492 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58673 states.
[2023-12-22 04:18:09,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58673 to 55215.
[2023-12-22 04:18:09,087 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55215 states, 55214 states have (on average 1.1456695765566705) internal successors, (63257), 55214 states have internal predecessors, (63257), 0 states have call successors, (0), 0 states 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 04:18:09,146 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55215 states to 55215 states and 63257 transitions.
[2023-12-22 04:18:09,147 INFO  L78                 Accepts]: Start accepts. Automaton has 55215 states and 63257 transitions. Word has length 2027
[2023-12-22 04:18:09,147 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:18:09,147 INFO  L495      AbstractCegarLoop]: Abstraction has 55215 states and 63257 transitions.
[2023-12-22 04:18:09,147 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 628.3333333333334) internal successors, (1885), 3 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states 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 04:18:09,148 INFO  L276                IsEmpty]: Start isEmpty. Operand 55215 states and 63257 transitions.
[2023-12-22 04:18:09,204 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2050
[2023-12-22 04:18:09,204 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:18:09,205 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:18:09,209 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 04:18:09,405 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 04:18:09,405 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:18:09,406 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:18:09,406 INFO  L85        PathProgramCache]: Analyzing trace with hash 644413241, now seen corresponding path program 1 times
[2023-12-22 04:18:09,415 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:18:09,415 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363946689]
[2023-12-22 04:18:09,416 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:18:09,416 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 04:18:09,416 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:18:09,417 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 04:18:09,418 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 04:18:09,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:18:09,951 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2172 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:18:09,962 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:18:09,999 INFO  L134       CoverageAnalysis]: Checked inductivity of 659 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked.
[2023-12-22 04:18:09,999 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:18:09,999 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:18:09,999 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363946689]
[2023-12-22 04:18:09,999 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363946689] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:18:09,999 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:18:10,000 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:18:10,000 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381197608]
[2023-12-22 04:18:10,000 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:18:10,001 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:18:10,001 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:18:10,002 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:18:10,002 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:18:10,003 INFO  L87              Difference]: Start difference. First operand 55215 states and 63257 transitions. Second operand  has 3 states, 3 states have (on average 634.3333333333334) internal successors, (1903), 3 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states 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 04:18:17,191 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:18:17,191 INFO  L93              Difference]: Finished difference Result 134277 states and 156663 transitions.
[2023-12-22 04:18:17,191 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:18:17,192 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 634.3333333333334) internal successors, (1903), 3 states have internal predecessors, (1903), 0 states have call successors, (0), 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 2049
[2023-12-22 04:18:17,192 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:18:17,277 INFO  L225             Difference]: With dead ends: 134277
[2023-12-22 04:18:17,278 INFO  L226             Difference]: Without dead ends: 80689
[2023-12-22 04:18:17,318 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2048 GetRequests, 2047 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 04:18:17,319 INFO  L413           NwaCegarLoop]: 2006 mSDtfsCounter, 1825 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 5751 mSolverCounterSat, 1401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1825 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 7152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1401 IncrementalHoareTripleChecker+Valid, 5751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:18:17,319 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1825 Valid, 2296 Invalid, 7152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1401 Valid, 5751 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time]
[2023-12-22 04:18:17,376 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 80689 states.
[2023-12-22 04:18:17,995 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 80689 to 80682.
[2023-12-22 04:18:18,047 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 80682 states, 80681 states have (on average 1.1296092016707775) internal successors, (91138), 80681 states have internal predecessors, (91138), 0 states have call successors, (0), 0 states 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 04:18:18,128 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 80682 states to 80682 states and 91138 transitions.
[2023-12-22 04:18:18,128 INFO  L78                 Accepts]: Start accepts. Automaton has 80682 states and 91138 transitions. Word has length 2049
[2023-12-22 04:18:18,129 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:18:18,129 INFO  L495      AbstractCegarLoop]: Abstraction has 80682 states and 91138 transitions.
[2023-12-22 04:18:18,129 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 634.3333333333334) internal successors, (1903), 3 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states 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 04:18:18,129 INFO  L276                IsEmpty]: Start isEmpty. Operand 80682 states and 91138 transitions.
[2023-12-22 04:18:18,210 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2070
[2023-12-22 04:18:18,210 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:18:18,211 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2023-12-22 04:18:18,216 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 (10)] Forceful destruction successful, exit code 0
[2023-12-22 04:18:18,411 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 04:18:18,412 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:18:18,412 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:18:18,413 INFO  L85        PathProgramCache]: Analyzing trace with hash -1100139044, now seen corresponding path program 1 times
[2023-12-22 04:18:18,422 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:18:18,422 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103647963]
[2023-12-22 04:18:18,422 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:18:18,422 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 04:18:18,422 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:18:18,423 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 04:18:18,424 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 04:18:19,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:18:19,200 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2194 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:18:19,302 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:18:19,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 741 backedges. 557 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked.
[2023-12-22 04:18:19,356 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:18:19,356 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:18:19,357 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103647963]
[2023-12-22 04:18:19,357 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103647963] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:18:19,357 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:18:19,357 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:18:19,357 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820230040]
[2023-12-22 04:18:19,357 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:18:19,358 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:18:19,358 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:18:19,359 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:18:19,360 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:18:19,360 INFO  L87              Difference]: Start difference. First operand 80682 states and 91138 transitions. Second operand  has 3 states, 3 states have (on average 641.0) internal successors, (1923), 3 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states 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 04:18:27,013 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:18:27,013 INFO  L93              Difference]: Finished difference Result 202198 states and 231914 transitions.
[2023-12-22 04:18:27,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:18:27,014 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 641.0) internal successors, (1923), 3 states have internal predecessors, (1923), 0 states have call successors, (0), 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 04:18:27,014 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:18:27,170 INFO  L225             Difference]: With dead ends: 202198
[2023-12-22 04:18:27,170 INFO  L226             Difference]: Without dead ends: 123143
[2023-12-22 04:18:27,201 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2068 GetRequests, 2067 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 04:18:27,202 INFO  L413           NwaCegarLoop]: 3894 mSDtfsCounter, 1746 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 5769 mSolverCounterSat, 1482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 4146 SdHoareTripleChecker+Invalid, 7251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1482 IncrementalHoareTripleChecker+Valid, 5769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:18:27,202 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 4146 Invalid, 7251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1482 Valid, 5769 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time]
[2023-12-22 04:18:27,287 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 123143 states.
[2023-12-22 04:18:28,149 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 123143 to 116342.
[2023-12-22 04:18:28,409 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 116342 states, 116341 states have (on average 1.1104683645490412) internal successors, (129193), 116341 states have internal predecessors, (129193), 0 states have call successors, (0), 0 states 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 04:18:28,626 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 116342 states to 116342 states and 129193 transitions.
[2023-12-22 04:18:28,626 INFO  L78                 Accepts]: Start accepts. Automaton has 116342 states and 129193 transitions. Word has length 2069
[2023-12-22 04:18:28,627 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:18:28,627 INFO  L495      AbstractCegarLoop]: Abstraction has 116342 states and 129193 transitions.
[2023-12-22 04:18:28,627 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 641.0) internal successors, (1923), 3 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states 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 04:18:28,627 INFO  L276                IsEmpty]: Start isEmpty. Operand 116342 states and 129193 transitions.
[2023-12-22 04:18:28,720 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2152
[2023-12-22 04:18:28,720 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:18:28,721 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2023-12-22 04:18:28,726 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2023-12-22 04:18:28,921 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 04:18:28,922 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:18:28,922 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:18:28,923 INFO  L85        PathProgramCache]: Analyzing trace with hash 1240303928, now seen corresponding path program 1 times
[2023-12-22 04:18:28,932 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:18:28,932 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108623714]
[2023-12-22 04:18:28,933 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:18:28,933 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 04:18:28,933 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:18:28,934 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 04:18:28,935 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 04:18:29,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:18:29,583 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2289 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:18:29,595 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:18:29,631 INFO  L134       CoverageAnalysis]: Checked inductivity of 1027 backedges. 732 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked.
[2023-12-22 04:18:29,631 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:18:29,632 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:18:29,632 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108623714]
[2023-12-22 04:18:29,632 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108623714] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:18:29,632 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:18:29,632 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:18:29,632 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539549567]
[2023-12-22 04:18:29,632 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:18:29,633 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:18:29,633 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:18:29,635 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:18:29,635 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:18:29,635 INFO  L87              Difference]: Start difference. First operand 116342 states and 129193 transitions. Second operand  has 3 states, 3 states have (on average 633.3333333333334) internal successors, (1900), 3 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states 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 04:18:36,450 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:18:36,450 INFO  L93              Difference]: Finished difference Result 253612 states and 284268 transitions.
[2023-12-22 04:18:36,450 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:18:36,451 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 633.3333333333334) internal successors, (1900), 3 states have internal predecessors, (1900), 0 states have call successors, (0), 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 2151
[2023-12-22 04:18:36,451 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:18:36,621 INFO  L225             Difference]: With dead ends: 253612
[2023-12-22 04:18:36,621 INFO  L226             Difference]: Without dead ends: 138897
[2023-12-22 04:18:36,751 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2150 GetRequests, 2149 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 04:18:36,751 INFO  L413           NwaCegarLoop]: 3495 mSDtfsCounter, 1960 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 5162 mSolverCounterSat, 1171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1960 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 6333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1171 IncrementalHoareTripleChecker+Valid, 5162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:18:36,752 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1960 Valid, 3872 Invalid, 6333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1171 Valid, 5162 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2023-12-22 04:18:36,833 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 138897 states.
[2023-12-22 04:18:37,931 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 138897 to 133801.
[2023-12-22 04:18:37,992 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 133801 states, 133800 states have (on average 1.1042451420029895) internal successors, (147748), 133800 states have internal predecessors, (147748), 0 states have call successors, (0), 0 states 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 04:18:38,280 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 133801 states to 133801 states and 147748 transitions.
[2023-12-22 04:18:38,280 INFO  L78                 Accepts]: Start accepts. Automaton has 133801 states and 147748 transitions. Word has length 2151
[2023-12-22 04:18:38,281 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:18:38,281 INFO  L495      AbstractCegarLoop]: Abstraction has 133801 states and 147748 transitions.
[2023-12-22 04:18:38,281 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 633.3333333333334) internal successors, (1900), 3 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states 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 04:18:38,281 INFO  L276                IsEmpty]: Start isEmpty. Operand 133801 states and 147748 transitions.
[2023-12-22 04:18:38,464 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2180
[2023-12-22 04:18:38,464 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:18:38,465 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:18:38,469 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2023-12-22 04:18:38,665 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 04:18:38,666 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:18:38,666 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:18:38,667 INFO  L85        PathProgramCache]: Analyzing trace with hash 2015243606, now seen corresponding path program 1 times
[2023-12-22 04:18:38,766 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:18:38,767 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413267274]
[2023-12-22 04:18:38,767 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:18:38,767 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 04:18:38,767 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:18:38,768 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 04:18:38,769 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 04:18:39,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:18:39,354 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2304 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:18:39,369 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:18:39,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 986 backedges. 802 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked.
[2023-12-22 04:18:39,652 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:18:39,652 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:18:39,652 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413267274]
[2023-12-22 04:18:39,652 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [413267274] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:18:39,652 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:18:39,652 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:18:39,652 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998458291]
[2023-12-22 04:18:39,652 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:18:39,653 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:18:39,654 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:18:39,655 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:18:39,655 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:18:39,655 INFO  L87              Difference]: Start difference. First operand 133801 states and 147748 transitions. Second operand  has 3 states, 3 states have (on average 677.6666666666666) internal successors, (2033), 3 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states 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 04:18:46,416 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:18:46,417 INFO  L93              Difference]: Finished difference Result 281279 states and 310643 transitions.
[2023-12-22 04:18:46,417 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:18:46,417 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 677.6666666666666) internal successors, (2033), 3 states have internal predecessors, (2033), 0 states have call successors, (0), 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 2179
[2023-12-22 04:18:46,418 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:18:46,589 INFO  L225             Difference]: With dead ends: 281279
[2023-12-22 04:18:46,589 INFO  L226             Difference]: Without dead ends: 147407
[2023-12-22 04:18:46,762 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2178 GetRequests, 2177 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 04:18:46,762 INFO  L413           NwaCegarLoop]: 3907 mSDtfsCounter, 1616 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 4865 mSolverCounterSat, 1222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 6087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1222 IncrementalHoareTripleChecker+Valid, 4865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:18:46,763 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 4130 Invalid, 6087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1222 Valid, 4865 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2023-12-22 04:18:46,833 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 147407 states.
[2023-12-22 04:18:47,997 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 147407 to 147388.
[2023-12-22 04:18:48,068 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 147388 states, 147387 states have (on average 1.0967860123348736) internal successors, (161652), 147387 states have internal predecessors, (161652), 0 states have call successors, (0), 0 states 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 04:18:48,403 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 147388 states to 147388 states and 161652 transitions.
[2023-12-22 04:18:48,404 INFO  L78                 Accepts]: Start accepts. Automaton has 147388 states and 161652 transitions. Word has length 2179
[2023-12-22 04:18:48,404 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:18:48,404 INFO  L495      AbstractCegarLoop]: Abstraction has 147388 states and 161652 transitions.
[2023-12-22 04:18:48,405 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 677.6666666666666) internal successors, (2033), 3 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states 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 04:18:48,405 INFO  L276                IsEmpty]: Start isEmpty. Operand 147388 states and 161652 transitions.
[2023-12-22 04:18:48,675 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2326
[2023-12-22 04:18:48,676 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:18:48,677 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:18:48,692 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 (13)] Forceful destruction successful, exit code 0
[2023-12-22 04:18:48,881 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 04:18:48,881 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:18:48,881 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:18:48,882 INFO  L85        PathProgramCache]: Analyzing trace with hash 2001310121, now seen corresponding path program 1 times
[2023-12-22 04:18:48,894 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:18:48,894 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918943531]
[2023-12-22 04:18:48,894 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:18:48,894 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 04:18:48,895 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:18:48,895 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 04:18:48,896 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 04:18:49,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:18:49,611 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 04:18:49,622 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:18:49,866 INFO  L134       CoverageAnalysis]: Checked inductivity of 1716 backedges. 1309 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked.
[2023-12-22 04:18:49,866 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:18:49,866 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:18:49,866 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918943531]
[2023-12-22 04:18:49,866 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [918943531] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:18:49,866 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:18:49,867 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:18:49,867 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408973948]
[2023-12-22 04:18:49,867 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:18:49,868 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:18:49,868 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:18:49,869 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:18:49,869 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:18:49,870 INFO  L87              Difference]: Start difference. First operand 147388 states and 161652 transitions. Second operand  has 3 states, 3 states have (on average 677.3333333333334) internal successors, (2032), 3 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states 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 04:18:56,720 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:18:56,720 INFO  L93              Difference]: Finished difference Result 311847 states and 341927 transitions.
[2023-12-22 04:18:56,721 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:18:56,721 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 677.3333333333334) internal successors, (2032), 3 states have internal predecessors, (2032), 0 states have call successors, (0), 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 2325
[2023-12-22 04:18:56,722 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:18:56,889 INFO  L225             Difference]: With dead ends: 311847
[2023-12-22 04:18:56,889 INFO  L226             Difference]: Without dead ends: 166086
[2023-12-22 04:18:56,917 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2324 GetRequests, 2323 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 04:18:56,917 INFO  L413           NwaCegarLoop]: 3890 mSDtfsCounter, 1631 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 4928 mSolverCounterSat, 1188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 6116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 4928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2023-12-22 04:18:56,918 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1631 Valid, 4112 Invalid, 6116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1188 Valid, 4928 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2023-12-22 04:18:57,033 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 166086 states.
[2023-12-22 04:18:58,407 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 166086 to 166067.
[2023-12-22 04:18:58,506 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 166067 states, 166066 states have (on average 1.0887899991569616) internal successors, (180811), 166066 states have internal predecessors, (180811), 0 states have call successors, (0), 0 states 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 04:18:58,928 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 166067 states to 166067 states and 180811 transitions.
[2023-12-22 04:18:58,929 INFO  L78                 Accepts]: Start accepts. Automaton has 166067 states and 180811 transitions. Word has length 2325
[2023-12-22 04:18:58,929 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:18:58,929 INFO  L495      AbstractCegarLoop]: Abstraction has 166067 states and 180811 transitions.
[2023-12-22 04:18:58,930 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 677.3333333333334) internal successors, (2032), 3 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states 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 04:18:58,930 INFO  L276                IsEmpty]: Start isEmpty. Operand 166067 states and 180811 transitions.
[2023-12-22 04:18:59,186 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2326
[2023-12-22 04:18:59,187 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:18:59,188 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:18:59,194 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 04:18:59,394 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 04:18:59,395 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:18:59,395 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:18:59,396 INFO  L85        PathProgramCache]: Analyzing trace with hash 1359706955, now seen corresponding path program 1 times
[2023-12-22 04:18:59,408 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:18:59,408 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271031573]
[2023-12-22 04:18:59,408 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:18:59,409 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 04:18:59,409 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:18:59,410 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 04:18:59,412 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 04:19:00,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:19:00,173 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2420 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-12-22 04:19:00,188 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:19:01,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 796 backedges. 791 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2023-12-22 04:19:01,841 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:19:01,841 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:19:01,841 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271031573]
[2023-12-22 04:19:01,841 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271031573] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:19:01,841 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:19:01,841 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-22 04:19:01,841 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382475512]
[2023-12-22 04:19:01,841 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:19:01,843 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-22 04:19:01,843 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:19:01,844 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-22 04:19:01,844 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-22 04:19:01,844 INFO  L87              Difference]: Start difference. First operand 166067 states and 180811 transitions. Second operand  has 6 states, 6 states have (on average 386.8333333333333) internal successors, (2321), 6 states have internal predecessors, (2321), 0 states have call successors, (0), 0 states 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 04:19:16,999 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:19:16,999 INFO  L93              Difference]: Finished difference Result 370154 states and 404096 transitions.
[2023-12-22 04:19:17,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2023-12-22 04:19:17,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 386.8333333333333) internal successors, (2321), 6 states have internal predecessors, (2321), 0 states have call successors, (0), 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 2325
[2023-12-22 04:19:17,001 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:19:17,245 INFO  L225             Difference]: With dead ends: 370154
[2023-12-22 04:19:17,245 INFO  L226             Difference]: Without dead ends: 204016
[2023-12-22 04:19:17,299 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2341 GetRequests, 2326 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272
[2023-12-22 04:19:17,300 INFO  L413           NwaCegarLoop]: 3766 mSDtfsCounter, 7148 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 20634 mSolverCounterSat, 1316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7148 SdHoareTripleChecker+Valid, 5007 SdHoareTripleChecker+Invalid, 21950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1316 IncrementalHoareTripleChecker+Valid, 20634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time
[2023-12-22 04:19:17,300 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7148 Valid, 5007 Invalid, 21950 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1316 Valid, 20634 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time]
[2023-12-22 04:19:17,448 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 204016 states.
[2023-12-22 04:19:19,010 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 204016 to 166067.
[2023-12-22 04:19:19,116 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 166067 states, 166066 states have (on average 1.0887177387303844) internal successors, (180799), 166066 states have internal predecessors, (180799), 0 states have call successors, (0), 0 states 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 04:19:19,519 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 166067 states to 166067 states and 180799 transitions.
[2023-12-22 04:19:19,519 INFO  L78                 Accepts]: Start accepts. Automaton has 166067 states and 180799 transitions. Word has length 2325
[2023-12-22 04:19:19,520 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:19:19,520 INFO  L495      AbstractCegarLoop]: Abstraction has 166067 states and 180799 transitions.
[2023-12-22 04:19:19,520 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 386.8333333333333) internal successors, (2321), 6 states have internal predecessors, (2321), 0 states have call successors, (0), 0 states 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 04:19:19,520 INFO  L276                IsEmpty]: Start isEmpty. Operand 166067 states and 180799 transitions.
[2023-12-22 04:19:19,874 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2408
[2023-12-22 04:19:19,874 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:19:19,875 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:19:19,879 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 04:19:20,075 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 04:19:20,076 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:19:20,076 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:19:20,076 INFO  L85        PathProgramCache]: Analyzing trace with hash 1379603259, now seen corresponding path program 1 times
[2023-12-22 04:19:20,087 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:19:20,087 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899392660]
[2023-12-22 04:19:20,087 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:19:20,087 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 04:19:20,088 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:19:20,088 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 04:19:20,089 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 04:19:20,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:19:20,763 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2578 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:19:20,775 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:19:20,818 INFO  L134       CoverageAnalysis]: Checked inductivity of 1928 backedges. 1215 proven. 0 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked.
[2023-12-22 04:19:20,818 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:19:20,818 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:19:20,818 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899392660]
[2023-12-22 04:19:20,818 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899392660] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:19:20,818 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:19:20,818 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:19:20,818 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430685721]
[2023-12-22 04:19:20,819 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:19:20,820 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:19:20,820 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:19:20,821 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:19:20,821 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:19:20,821 INFO  L87              Difference]: Start difference. First operand 166067 states and 180799 transitions. Second operand  has 3 states, 3 states have (on average 635.6666666666666) internal successors, (1907), 3 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states 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 04:19:28,438 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:19:28,438 INFO  L93              Difference]: Finished difference Result 381453 states and 419550 transitions.
[2023-12-22 04:19:28,438 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:19:28,439 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 635.6666666666666) internal successors, (1907), 3 states have internal predecessors, (1907), 0 states have call successors, (0), 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 2407
[2023-12-22 04:19:28,439 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:19:28,863 INFO  L225             Difference]: With dead ends: 381453
[2023-12-22 04:19:28,863 INFO  L226             Difference]: Without dead ends: 217013
[2023-12-22 04:19:28,936 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2406 GetRequests, 2405 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 04:19:28,936 INFO  L413           NwaCegarLoop]: 3620 mSDtfsCounter, 1892 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 5532 mSolverCounterSat, 1493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1892 SdHoareTripleChecker+Valid, 3867 SdHoareTripleChecker+Invalid, 7025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1493 IncrementalHoareTripleChecker+Valid, 5532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time
[2023-12-22 04:19:28,936 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1892 Valid, 3867 Invalid, 7025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1493 Valid, 5532 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time]
[2023-12-22 04:19:29,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 217013 states.
[2023-12-22 04:19:30,753 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 217013 to 211910.
[2023-12-22 04:19:30,865 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 211910 states, 211909 states have (on average 1.0773822725792674) internal successors, (228307), 211909 states have internal predecessors, (228307), 0 states have call successors, (0), 0 states 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 04:19:31,304 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 211910 states to 211910 states and 228307 transitions.
[2023-12-22 04:19:31,304 INFO  L78                 Accepts]: Start accepts. Automaton has 211910 states and 228307 transitions. Word has length 2407
[2023-12-22 04:19:31,305 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:19:31,305 INFO  L495      AbstractCegarLoop]: Abstraction has 211910 states and 228307 transitions.
[2023-12-22 04:19:31,305 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 635.6666666666666) internal successors, (1907), 3 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states 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 04:19:31,306 INFO  L276                IsEmpty]: Start isEmpty. Operand 211910 states and 228307 transitions.
[2023-12-22 04:19:31,708 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2525
[2023-12-22 04:19:31,708 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:19:31,709 INFO  L195           NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:19:31,720 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 (16)] Ended with exit code 0
[2023-12-22 04:19:31,923 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 04:19:31,923 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:19:31,924 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:19:31,924 INFO  L85        PathProgramCache]: Analyzing trace with hash 1896028471, now seen corresponding path program 1 times
[2023-12-22 04:19:31,938 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:19:31,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378997644]
[2023-12-22 04:19:31,938 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:19:31,939 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 04:19:31,939 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:19:31,940 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 04:19:31,968 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2023-12-22 04:19:32,746 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:19:32,757 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:19:32,771 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:19:32,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 2194 backedges. 1658 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked.
[2023-12-22 04:19:32,901 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:19:32,901 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:19:32,901 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378997644]
[2023-12-22 04:19:32,901 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378997644] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:19:32,901 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:19:32,901 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:19:32,901 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154772967]
[2023-12-22 04:19:32,901 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:19:32,903 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:19:32,903 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:19:32,904 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:19:32,904 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:19:32,904 INFO  L87              Difference]: Start difference. First operand 211910 states and 228307 transitions. Second operand  has 3 states, 3 states have (on average 730.0) internal successors, (2190), 3 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states 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 04:19:41,052 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:19:41,052 INFO  L93              Difference]: Finished difference Result 542748 states and 587240 transitions.
[2023-12-22 04:19:41,052 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:19:41,053 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 730.0) internal successors, (2190), 3 states have internal predecessors, (2190), 0 states have call successors, (0), 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 2524
[2023-12-22 04:19:41,053 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:19:41,620 INFO  L225             Difference]: With dead ends: 542748
[2023-12-22 04:19:41,620 INFO  L226             Difference]: Without dead ends: 315428
[2023-12-22 04:19:41,675 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2523 GetRequests, 2522 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 04:19:41,676 INFO  L413           NwaCegarLoop]: 1577 mSDtfsCounter, 2435 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4465 mSolverCounterSat, 2353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2435 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 6818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2353 IncrementalHoareTripleChecker+Valid, 4465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2023-12-22 04:19:41,678 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2435 Valid, 1702 Invalid, 6818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2353 Valid, 4465 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time]
[2023-12-22 04:19:41,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 315428 states.
[2023-12-22 04:19:44,480 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 315428 to 293347.
[2023-12-22 04:19:44,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 293347 states, 293346 states have (on average 1.062223449441956) internal successors, (311599), 293346 states have internal predecessors, (311599), 0 states have call successors, (0), 0 states 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 04:19:45,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 293347 states to 293347 states and 311599 transitions.
[2023-12-22 04:19:45,300 INFO  L78                 Accepts]: Start accepts. Automaton has 293347 states and 311599 transitions. Word has length 2524
[2023-12-22 04:19:45,301 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:19:45,301 INFO  L495      AbstractCegarLoop]: Abstraction has 293347 states and 311599 transitions.
[2023-12-22 04:19:45,302 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 730.0) internal successors, (2190), 3 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states 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 04:19:45,302 INFO  L276                IsEmpty]: Start isEmpty. Operand 293347 states and 311599 transitions.
[2023-12-22 04:19:45,815 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2584
[2023-12-22 04:19:45,815 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:19:45,817 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2023-12-22 04:19:45,826 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0
[2023-12-22 04:19:46,024 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 04:19:46,025 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:19:46,025 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:19:46,025 INFO  L85        PathProgramCache]: Analyzing trace with hash -2058464456, now seen corresponding path program 1 times
[2023-12-22 04:19:46,041 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:19:46,041 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851743173]
[2023-12-22 04:19:46,041 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:19:46,041 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 04:19:46,041 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:19:46,042 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 04:19:46,044 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 04:19:46,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:19:46,962 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2714 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:19:46,975 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:19:47,007 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 956 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked.
[2023-12-22 04:19:47,007 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:19:47,007 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:19:47,007 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851743173]
[2023-12-22 04:19:47,007 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851743173] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:19:47,008 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:19:47,008 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:19:47,008 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469829167]
[2023-12-22 04:19:47,009 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:19:47,011 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:19:47,011 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:19:47,012 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:19:47,012 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:19:47,013 INFO  L87              Difference]: Start difference. First operand 293347 states and 311599 transitions. Second operand  has 3 states, 3 states have (on average 736.3333333333334) internal successors, (2209), 3 states have internal predecessors, (2209), 0 states have call successors, (0), 0 states 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 04:19:54,711 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:19:54,711 INFO  L93              Difference]: Finished difference Result 595255 states and 631887 transitions.
[2023-12-22 04:19:54,712 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:19:54,712 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 736.3333333333334) internal successors, (2209), 3 states have internal predecessors, (2209), 0 states have call successors, (0), 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 2583
[2023-12-22 04:19:54,713 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:19:55,320 INFO  L225             Difference]: With dead ends: 595255
[2023-12-22 04:19:55,320 INFO  L226             Difference]: Without dead ends: 298422
[2023-12-22 04:19:55,397 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2582 GetRequests, 2581 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 04:19:55,397 INFO  L413           NwaCegarLoop]: 3217 mSDtfsCounter, 2237 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4533 mSolverCounterSat, 1752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 3401 SdHoareTripleChecker+Invalid, 6285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1752 IncrementalHoareTripleChecker+Valid, 4533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time
[2023-12-22 04:19:55,397 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 3401 Invalid, 6285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1752 Valid, 4533 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time]
[2023-12-22 04:19:55,614 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 298422 states.
[2023-12-22 04:19:58,124 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 298422 to 274637.
[2023-12-22 04:19:58,251 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 274637 states, 274636 states have (on average 1.0410070056365517) internal successors, (285898), 274636 states have internal predecessors, (285898), 0 states have call successors, (0), 0 states 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 04:19:58,832 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 274637 states to 274637 states and 285898 transitions.
[2023-12-22 04:19:58,832 INFO  L78                 Accepts]: Start accepts. Automaton has 274637 states and 285898 transitions. Word has length 2583
[2023-12-22 04:19:58,833 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:19:58,833 INFO  L495      AbstractCegarLoop]: Abstraction has 274637 states and 285898 transitions.
[2023-12-22 04:19:58,833 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 736.3333333333334) internal successors, (2209), 3 states have internal predecessors, (2209), 0 states have call successors, (0), 0 states 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 04:19:58,834 INFO  L276                IsEmpty]: Start isEmpty. Operand 274637 states and 285898 transitions.
[2023-12-22 04:19:59,035 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2626
[2023-12-22 04:19:59,035 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:19:59,036 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:19:59,041 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 (18)] Forceful destruction successful, exit code 0
[2023-12-22 04:19:59,236 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 04:19:59,237 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:19:59,237 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:19:59,238 INFO  L85        PathProgramCache]: Analyzing trace with hash -931174118, now seen corresponding path program 1 times
[2023-12-22 04:19:59,250 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:19:59,250 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448449927]
[2023-12-22 04:19:59,250 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:19:59,250 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 04:19:59,250 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:19:59,251 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 04:19:59,252 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 04:20:00,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:00,092 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2753 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:20:00,105 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:00,171 INFO  L134       CoverageAnalysis]: Checked inductivity of 1711 backedges. 1155 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked.
[2023-12-22 04:20:00,171 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:00,172 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:00,172 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448449927]
[2023-12-22 04:20:00,172 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448449927] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:00,172 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:00,172 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:20:00,172 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53924151]
[2023-12-22 04:20:00,172 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:00,174 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:20:00,174 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:00,175 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:20:00,175 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:20:00,175 INFO  L87              Difference]: Start difference. First operand 274637 states and 285898 transitions. Second operand  has 3 states, 3 states have (on average 750.3333333333334) internal successors, (2251), 3 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:08,470 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:08,471 INFO  L93              Difference]: Finished difference Result 622379 states and 649782 transitions.
[2023-12-22 04:20:08,471 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:20:08,472 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 750.3333333333334) internal successors, (2251), 3 states have internal predecessors, (2251), 0 states have call successors, (0), 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 2625
[2023-12-22 04:20:08,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:09,204 INFO  L225             Difference]: With dead ends: 622379
[2023-12-22 04:20:09,205 INFO  L226             Difference]: Without dead ends: 349368
[2023-12-22 04:20:09,295 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2624 GetRequests, 2623 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 04:20:09,296 INFO  L413           NwaCegarLoop]: 3625 mSDtfsCounter, 1727 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 5488 mSolverCounterSat, 1253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 6741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1253 IncrementalHoareTripleChecker+Valid, 5488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:09,296 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1727 Valid, 3844 Invalid, 6741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1253 Valid, 5488 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time]
[2023-12-22 04:20:09,540 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 349368 states.
[2023-12-22 04:20:12,280 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 349368 to 339158.
[2023-12-22 04:20:12,444 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 339158 states, 339157 states have (on average 1.036354844511539) internal successors, (351487), 339157 states have internal predecessors, (351487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:13,108 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 339158 states to 339158 states and 351487 transitions.
[2023-12-22 04:20:13,108 INFO  L78                 Accepts]: Start accepts. Automaton has 339158 states and 351487 transitions. Word has length 2625
[2023-12-22 04:20:13,109 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:13,109 INFO  L495      AbstractCegarLoop]: Abstraction has 339158 states and 351487 transitions.
[2023-12-22 04:20:13,109 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 750.3333333333334) internal successors, (2251), 3 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:13,110 INFO  L276                IsEmpty]: Start isEmpty. Operand 339158 states and 351487 transitions.
[2023-12-22 04:20:13,620 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2632
[2023-12-22 04:20:13,620 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:13,621 INFO  L195           NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 04:20:13,626 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 04:20:13,822 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 04:20:13,822 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:13,822 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:13,823 INFO  L85        PathProgramCache]: Analyzing trace with hash 1281501584, now seen corresponding path program 1 times
[2023-12-22 04:20:13,834 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:13,834 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28532944]
[2023-12-22 04:20:13,835 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:13,835 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:13,835 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:13,836 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 04:20:13,839 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 04:20:14,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:14,677 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2838 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:20:14,690 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:14,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 3566 backedges. 2233 proven. 0 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked.
[2023-12-22 04:20:14,761 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:14,762 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:14,762 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28532944]
[2023-12-22 04:20:14,762 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [28532944] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:14,762 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:14,762 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:20:14,762 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517613508]
[2023-12-22 04:20:14,762 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:14,763 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:20:14,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:14,765 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:20:14,765 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:20:14,765 INFO  L87              Difference]: Start difference. First operand 339158 states and 351487 transitions. Second operand  has 3 states, 3 states have (on average 648.6666666666666) internal successors, (1946), 3 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:22,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:22,960 INFO  L93              Difference]: Finished difference Result 744663 states and 772761 transitions.
[2023-12-22 04:20:22,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:20:22,960 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 648.6666666666666) internal successors, (1946), 3 states have internal predecessors, (1946), 0 states have call successors, (0), 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 2631
[2023-12-22 04:20:22,961 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:23,527 INFO  L225             Difference]: With dead ends: 744663
[2023-12-22 04:20:23,527 INFO  L226             Difference]: Without dead ends: 405413
[2023-12-22 04:20:23,617 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2630 GetRequests, 2629 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 04:20:23,619 INFO  L413           NwaCegarLoop]: 3378 mSDtfsCounter, 1794 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 5568 mSolverCounterSat, 884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 3551 SdHoareTripleChecker+Invalid, 6452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 5568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:23,619 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1794 Valid, 3551 Invalid, 6452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [884 Valid, 5568 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2023-12-22 04:20:24,122 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 405413 states.
[2023-12-22 04:20:27,440 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 405413 to 400271.
[2023-12-22 04:20:27,606 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 400271 states, 400270 states have (on average 1.0330851675119295) internal successors, (413513), 400270 states have internal predecessors, (413513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:28,353 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 400271 states to 400271 states and 413513 transitions.
[2023-12-22 04:20:28,353 INFO  L78                 Accepts]: Start accepts. Automaton has 400271 states and 413513 transitions. Word has length 2631
[2023-12-22 04:20:28,354 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 04:20:28,354 INFO  L495      AbstractCegarLoop]: Abstraction has 400271 states and 413513 transitions.
[2023-12-22 04:20:28,354 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 648.6666666666666) internal successors, (1946), 3 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:28,354 INFO  L276                IsEmpty]: Start isEmpty. Operand 400271 states and 413513 transitions.
[2023-12-22 04:20:28,823 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2655
[2023-12-22 04:20:28,824 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 04:20:28,825 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 04:20:28,831 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 04:20:29,025 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 04:20:29,025 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 04:20:29,026 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 04:20:29,026 INFO  L85        PathProgramCache]: Analyzing trace with hash 1051572816, now seen corresponding path program 1 times
[2023-12-22 04:20:29,038 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 04:20:29,038 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350749941]
[2023-12-22 04:20:29,038 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 04:20:29,038 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 04:20:29,038 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 04:20:29,039 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 04:20:29,040 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 04:20:29,859 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 04:20:29,871 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 04:20:29,885 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 04:20:30,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 2195 proven. 0 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked.
[2023-12-22 04:20:30,029 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 04:20:30,029 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 04:20:30,029 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350749941]
[2023-12-22 04:20:30,030 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350749941] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 04:20:30,030 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 04:20:30,030 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 04:20:30,030 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587568391]
[2023-12-22 04:20:30,030 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 04:20:30,031 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 04:20:30,032 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 04:20:30,033 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 04:20:30,033 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 04:20:30,033 INFO  L87              Difference]: Start difference. First operand 400271 states and 413513 transitions. Second operand  has 3 states, 3 states have (on average 675.0) internal successors, (2025), 3 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 04:20:38,983 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 04:20:38,983 INFO  L93              Difference]: Finished difference Result 887222 states and 919452 transitions.
[2023-12-22 04:20:38,983 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 04:20:38,984 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 675.0) internal successors, (2025), 3 states have internal predecessors, (2025), 0 states have call successors, (0), 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 2654
[2023-12-22 04:20:38,984 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 04:20:39,668 INFO  L225             Difference]: With dead ends: 887222
[2023-12-22 04:20:39,668 INFO  L226             Difference]: Without dead ends: 486871
[2023-12-22 04:20:39,825 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2653 GetRequests, 2652 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 04:20:39,826 INFO  L413           NwaCegarLoop]: 1810 mSDtfsCounter, 1662 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 5326 mSolverCounterSat, 1303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 6629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1303 IncrementalHoareTripleChecker+Valid, 5326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time
[2023-12-22 04:20:39,826 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 2016 Invalid, 6629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1303 Valid, 5326 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time]
[2023-12-22 04:20:40,234 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 486871 states.