/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/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-50.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 16:28:46,985 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 16:28:47,036 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 16:28:47,039 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 16:28:47,039 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 16:28:47,067 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 16:28:47,068 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 16:28:47,068 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 16:28:47,069 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 16:28:47,072 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 16:28:47,072 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 16:28:47,072 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 16:28:47,072 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 16:28:47,073 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 16:28:47,073 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 16:28:47,074 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 16:28:47,074 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 16:28:47,074 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 16:28:47,075 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 16:28:47,075 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 16:28:47,076 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 16:28:47,076 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 16:28:47,076 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 16:28:47,076 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 16:28:47,076 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 16:28:47,077 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 16:28:47,077 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 16:28:47,077 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 16:28:47,077 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 16:28:47,077 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 16:28:47,078 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 16:28:47,078 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 16:28:47,078 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 16:28:47,078 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 16:28:47,078 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 16:28:47,078 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 16:28:47,079 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 16:28:47,079 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 16:28:47,079 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 16:28:47,079 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 16:28:47,079 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 16:28:47,080 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 16:28:47,080 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 16:28:47,080 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 16:28:47,080 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 16:28:47,080 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 16:28:47,080 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 16:28:47,239 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 16:28:47,257 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 16:28:47,259 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 16:28:47,260 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 16:28:47,260 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 16:28:47,261 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-50.i
[2023-12-23 16:28:48,264 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 16:28:48,426 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 16:28:48,427 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-50.i
[2023-12-23 16:28:48,437 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3bd887f/ee56f9e697e1433cbee1ef5cfd98d11c/FLAGc0c91094a
[2023-12-23 16:28:48,457 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3bd887f/ee56f9e697e1433cbee1ef5cfd98d11c
[2023-12-23 16:28:48,459 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 16:28:48,460 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 16:28:48,461 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 16:28:48,461 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 16:28:48,465 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 16:28:48,465 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,466 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63959aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48, skipping insertion in model container
[2023-12-23 16:28:48,466 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,500 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 16:28:48,610 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-50.i[919,932]
[2023-12-23 16:28:48,670 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 16:28:48,682 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 16:28:48,694 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-50.i[919,932]
[2023-12-23 16:28:48,738 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 16:28:48,759 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 16:28:48,760 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48 WrapperNode
[2023-12-23 16:28:48,760 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 16:28:48,760 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 16:28:48,761 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 16:28:48,761 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 16:28:48,765 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,781 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,807 INFO  L138                Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213
[2023-12-23 16:28:48,807 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 16:28:48,808 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 16:28:48,808 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 16:28:48,808 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 16:28:48,816 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,817 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,820 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,832 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].
[2023-12-23 16:28:48,832 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,833 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,841 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,843 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,845 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,847 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,850 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 16:28:48,850 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 16:28:48,850 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 16:28:48,850 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 16:28:48,851 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (1/1) ...
[2023-12-23 16:28:48,855 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 16:28:48,885 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 16:28:48,921 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)
[2023-12-23 16:28:48,954 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
[2023-12-23 16:28:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 16:28:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 16:28:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 16:28:48,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 16:28:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 16:28:48,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 16:28:49,027 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 16:28:49,029 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 16:28:59,186 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 16:28:59,260 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 16:28:59,260 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 16:28:59,260 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:28:59 BoogieIcfgContainer
[2023-12-23 16:28:59,260 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 16:28:59,262 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 16:28:59,262 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 16:28:59,264 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 16:28:59,264 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:28:48" (1/3) ...
[2023-12-23 16:28:59,265 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51461201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:28:59, skipping insertion in model container
[2023-12-23 16:28:59,265 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:28:48" (2/3) ...
[2023-12-23 16:28:59,265 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51461201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:28:59, skipping insertion in model container
[2023-12-23 16:28:59,265 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:28:59" (3/3) ...
[2023-12-23 16:28:59,266 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-50.i
[2023-12-23 16:28:59,278 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 16:28:59,278 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 16:28:59,325 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 16:28:59,330 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;@55b71330, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 16:28:59,330 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 16:28:59,334 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 90 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 53 states have internal predecessors, (73), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2023-12-23 16:28:59,344 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2023-12-23 16:28:59,345 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:28:59,345 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 16:28:59,346 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:28:59,350 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:28:59,351 INFO  L85        PathProgramCache]: Analyzing trace with hash -1359262157, now seen corresponding path program 1 times
[2023-12-23 16:28:59,365 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:28:59,365 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483916583]
[2023-12-23 16:28:59,365 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:28:59,368 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
[2023-12-23 16:28:59,369 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:28:59,371 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)
[2023-12-23 16:28:59,416 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 16:28:59,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:28:59,995 INFO  L262         TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 16:29:00,010 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:29:00,083 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 1080 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2023-12-23 16:29:00,084 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:29:00,084 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:29:00,084 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483916583]
[2023-12-23 16:29:00,085 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483916583] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:29:00,085 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:29:00,085 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:29:00,087 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376259758]
[2023-12-23 16:29:00,087 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:29:00,092 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 16:29:00,093 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:29:00,120 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 16:29:00,120 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 16:29:00,128 INFO  L87              Difference]: Start difference. First operand  has 90 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 53 states have internal predecessors, (73), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-23 16:29:00,272 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:29:00,273 INFO  L93              Difference]: Finished difference Result 177 states and 319 transitions.
[2023-12-23 16:29:00,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 16:29:00,283 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 217
[2023-12-23 16:29:00,283 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:29:00,288 INFO  L225             Difference]: With dead ends: 177
[2023-12-23 16:29:00,289 INFO  L226             Difference]: Without dead ends: 88
[2023-12-23 16:29:00,291 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 16:29:00,293 INFO  L413           NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 16:29:00,294 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 16:29:00,305 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2023-12-23 16:29:00,329 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88.
[2023-12-23 16:29:00,330 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 88 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 51 states have internal predecessors, (68), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2023-12-23 16:29:00,331 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 138 transitions.
[2023-12-23 16:29:00,332 INFO  L78                 Accepts]: Start accepts. Automaton has 88 states and 138 transitions. Word has length 217
[2023-12-23 16:29:00,332 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:29:00,333 INFO  L495      AbstractCegarLoop]: Abstraction has 88 states and 138 transitions.
[2023-12-23 16:29:00,333 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-23 16:29:00,333 INFO  L276                IsEmpty]: Start isEmpty. Operand 88 states and 138 transitions.
[2023-12-23 16:29:00,339 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2023-12-23 16:29:00,339 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:29:00,339 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 16:29:00,354 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-23 16:29:00,552 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
[2023-12-23 16:29:00,553 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:29:00,553 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:29:00,553 INFO  L85        PathProgramCache]: Analyzing trace with hash -2079830079, now seen corresponding path program 1 times
[2023-12-23 16:29:00,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:29:00,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293000150]
[2023-12-23 16:29:00,554 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:29:00,555 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
[2023-12-23 16:29:00,555 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:29:00,556 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)
[2023-12-23 16:29:00,557 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
[2023-12-23 16:29:01,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:29:01,109 INFO  L262         TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 16:29:01,115 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:29:02,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-23 16:29:02,483 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:29:02,483 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:29:02,483 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293000150]
[2023-12-23 16:29:02,483 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293000150] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:29:02,483 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:29:02,484 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:29:02,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535170841]
[2023-12-23 16:29:02,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:29:02,485 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 16:29:02,485 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:29:02,486 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 16:29:02,486 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:29:02,486 INFO  L87              Difference]: Start difference. First operand 88 states and 138 transitions. Second operand  has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:29:02,883 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:29:02,883 INFO  L93              Difference]: Finished difference Result 248 states and 392 transitions.
[2023-12-23 16:29:02,884 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 16:29:02,884 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 217
[2023-12-23 16:29:02,885 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:29:02,886 INFO  L225             Difference]: With dead ends: 248
[2023-12-23 16:29:02,886 INFO  L226             Difference]: Without dead ends: 161
[2023-12-23 16:29:02,887 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:29:02,888 INFO  L413           NwaCegarLoop]: 133 mSDtfsCounter, 19 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-23 16:29:02,888 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 261 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-23 16:29:02,889 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 161 states.
[2023-12-23 16:29:02,905 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 157.
[2023-12-23 16:29:02,906 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 157 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 84 states have internal predecessors, (106), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 16:29:02,907 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 246 transitions.
[2023-12-23 16:29:02,908 INFO  L78                 Accepts]: Start accepts. Automaton has 157 states and 246 transitions. Word has length 217
[2023-12-23 16:29:02,908 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:29:02,908 INFO  L495      AbstractCegarLoop]: Abstraction has 157 states and 246 transitions.
[2023-12-23 16:29:02,909 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:29:02,909 INFO  L276                IsEmpty]: Start isEmpty. Operand 157 states and 246 transitions.
[2023-12-23 16:29:02,910 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2023-12-23 16:29:02,911 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:29:02,911 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 16:29:02,930 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 (3)] Ended with exit code 0
[2023-12-23 16:29:03,124 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
[2023-12-23 16:29:03,125 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:29:03,126 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:29:03,126 INFO  L85        PathProgramCache]: Analyzing trace with hash -1006934960, now seen corresponding path program 1 times
[2023-12-23 16:29:03,126 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:29:03,126 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784826208]
[2023-12-23 16:29:03,127 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:29:03,127 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
[2023-12-23 16:29:03,127 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:29:03,128 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)
[2023-12-23 16:29:03,129 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
[2023-12-23 16:29:03,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:29:03,626 INFO  L262         TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 16:29:03,631 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:29:04,926 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-23 16:29:04,926 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:29:04,926 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:29:04,926 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784826208]
[2023-12-23 16:29:04,927 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784826208] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:29:04,927 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:29:04,927 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:29:04,927 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68369739]
[2023-12-23 16:29:04,927 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:29:04,927 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 16:29:04,928 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:29:04,928 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 16:29:04,928 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:29:04,928 INFO  L87              Difference]: Start difference. First operand 157 states and 246 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:29:05,160 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:29:05,161 INFO  L93              Difference]: Finished difference Result 255 states and 402 transitions.
[2023-12-23 16:29:05,162 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 16:29:05,162 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 218
[2023-12-23 16:29:05,163 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:29:05,165 INFO  L225             Difference]: With dead ends: 255
[2023-12-23 16:29:05,165 INFO  L226             Difference]: Without dead ends: 163
[2023-12-23 16:29:05,165 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:29:05,166 INFO  L413           NwaCegarLoop]: 133 mSDtfsCounter, 19 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 16:29:05,166 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 264 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 16:29:05,169 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163 states.
[2023-12-23 16:29:05,183 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 157.
[2023-12-23 16:29:05,184 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 157 states, 84 states have (on average 1.25) internal successors, (105), 84 states have internal predecessors, (105), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 16:29:05,185 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 245 transitions.
[2023-12-23 16:29:05,185 INFO  L78                 Accepts]: Start accepts. Automaton has 157 states and 245 transitions. Word has length 218
[2023-12-23 16:29:05,186 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:29:05,186 INFO  L495      AbstractCegarLoop]: Abstraction has 157 states and 245 transitions.
[2023-12-23 16:29:05,186 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:29:05,186 INFO  L276                IsEmpty]: Start isEmpty. Operand 157 states and 245 transitions.
[2023-12-23 16:29:05,188 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2023-12-23 16:29:05,188 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:29:05,188 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 16:29:05,201 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 (4)] Ended with exit code 0
[2023-12-23 16:29:05,400 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
[2023-12-23 16:29:05,401 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:29:05,402 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:29:05,402 INFO  L85        PathProgramCache]: Analyzing trace with hash 1293887630, now seen corresponding path program 1 times
[2023-12-23 16:29:05,402 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:29:05,402 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398934206]
[2023-12-23 16:29:05,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:29:05,403 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
[2023-12-23 16:29:05,403 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:29:05,404 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)
[2023-12-23 16:29:05,406 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
[2023-12-23 16:29:05,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:29:05,882 INFO  L262         TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 16:29:05,886 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:29:07,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-23 16:29:07,611 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:29:07,611 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:29:07,611 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398934206]
[2023-12-23 16:29:07,611 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398934206] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:29:07,611 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:29:07,611 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:29:07,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053347518]
[2023-12-23 16:29:07,612 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:29:07,612 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 16:29:07,612 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:29:07,612 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 16:29:07,613 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:29:07,613 INFO  L87              Difference]: Start difference. First operand 157 states and 245 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:29:08,260 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:29:08,261 INFO  L93              Difference]: Finished difference Result 249 states and 391 transitions.
[2023-12-23 16:29:08,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 16:29:08,261 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 218
[2023-12-23 16:29:08,262 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:29:08,263 INFO  L225             Difference]: With dead ends: 249
[2023-12-23 16:29:08,263 INFO  L226             Difference]: Without dead ends: 162
[2023-12-23 16:29:08,264 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:29:08,264 INFO  L413           NwaCegarLoop]: 131 mSDtfsCounter, 12 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-23 16:29:08,264 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 256 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-23 16:29:08,265 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 162 states.
[2023-12-23 16:29:08,280 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 158.
[2023-12-23 16:29:08,280 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 158 states, 85 states have (on average 1.2470588235294118) internal successors, (106), 85 states have internal predecessors, (106), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 16:29:08,281 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 246 transitions.
[2023-12-23 16:29:08,282 INFO  L78                 Accepts]: Start accepts. Automaton has 158 states and 246 transitions. Word has length 218
[2023-12-23 16:29:08,282 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:29:08,282 INFO  L495      AbstractCegarLoop]: Abstraction has 158 states and 246 transitions.
[2023-12-23 16:29:08,282 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:29:08,282 INFO  L276                IsEmpty]: Start isEmpty. Operand 158 states and 246 transitions.
[2023-12-23 16:29:08,284 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2023-12-23 16:29:08,284 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:29:08,284 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 16:29:08,300 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
[2023-12-23 16:29:08,500 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
[2023-12-23 16:29:08,500 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:29:08,501 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:29:08,501 INFO  L85        PathProgramCache]: Analyzing trace with hash 282770380, now seen corresponding path program 1 times
[2023-12-23 16:29:08,501 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:29:08,501 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278196981]
[2023-12-23 16:29:08,501 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:29:08,502 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
[2023-12-23 16:29:08,502 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:29:08,503 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)
[2023-12-23 16:29:08,505 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
[2023-12-23 16:29:08,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:29:09,016 INFO  L262         TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 16:29:09,019 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:29:09,138 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-23 16:29:09,139 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:29:09,139 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:29:09,139 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278196981]
[2023-12-23 16:29:09,139 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [278196981] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:29:09,139 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:29:09,139 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 16:29:09,139 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176515707]
[2023-12-23 16:29:09,139 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:29:09,140 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 16:29:09,140 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:29:09,140 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 16:29:09,140 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 16:29:09,141 INFO  L87              Difference]: Start difference. First operand 158 states and 246 transitions. Second operand  has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:29:09,906 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:29:09,906 INFO  L93              Difference]: Finished difference Result 249 states and 390 transitions.
[2023-12-23 16:29:09,906 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 16:29:09,906 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 218
[2023-12-23 16:29:09,907 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:29:09,908 INFO  L225             Difference]: With dead ends: 249
[2023-12-23 16:29:09,908 INFO  L226             Difference]: Without dead ends: 162
[2023-12-23 16:29:09,909 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 16:29:09,911 INFO  L413           NwaCegarLoop]: 239 mSDtfsCounter, 139 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-23 16:29:09,911 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 578 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-23 16:29:09,913 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 162 states.
[2023-12-23 16:29:09,951 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 157.
[2023-12-23 16:29:09,953 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 157 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 84 states have internal predecessors, (103), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 16:29:09,954 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 243 transitions.
[2023-12-23 16:29:09,954 INFO  L78                 Accepts]: Start accepts. Automaton has 157 states and 243 transitions. Word has length 218
[2023-12-23 16:29:09,959 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:29:09,960 INFO  L495      AbstractCegarLoop]: Abstraction has 157 states and 243 transitions.
[2023-12-23 16:29:09,961 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:29:09,962 INFO  L276                IsEmpty]: Start isEmpty. Operand 157 states and 243 transitions.
[2023-12-23 16:29:09,963 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2023-12-23 16:29:09,963 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:29:09,964 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 16:29:09,983 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
[2023-12-23 16:29:10,180 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
[2023-12-23 16:29:10,180 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:29:10,181 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:29:10,181 INFO  L85        PathProgramCache]: Analyzing trace with hash 340028682, now seen corresponding path program 1 times
[2023-12-23 16:29:10,181 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:29:10,181 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073874352]
[2023-12-23 16:29:10,181 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:29:10,182 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
[2023-12-23 16:29:10,182 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:29:10,184 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)
[2023-12-23 16:29:10,186 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
[2023-12-23 16:29:10,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:29:10,731 INFO  L262         TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-23 16:29:10,736 INFO  L285         TraceCheckSpWp]: Computing forward predicates...