/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-cn_file-85.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 15:50:56,984 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 15:50:57,044 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 15:50:57,050 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 15:50:57,050 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 15:50:57,080 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 15:50:57,081 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 15:50:57,081 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 15:50:57,081 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 15:50:57,084 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 15:50:57,085 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 15:50:57,085 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 15:50:57,085 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 15:50:57,086 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 15:50:57,086 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 15:50:57,087 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 15:50:57,087 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 15:50:57,087 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 15:50:57,087 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 15:50:57,088 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 15:50:57,088 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 15:50:57,088 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 15:50:57,088 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 15:50:57,088 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 15:50:57,089 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 15:50:57,089 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 15:50:57,089 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 15:50:57,089 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 15:50:57,089 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 15:50:57,089 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 15:50:57,090 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 15:50:57,090 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 15:50:57,090 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 15:50:57,091 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 15:50:57,091 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 15:50:57,091 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 15:50:57,091 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 15:50:57,091 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 15:50:57,091 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 15:50:57,091 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 15:50:57,092 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 15:50:57,092 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 15:50:57,092 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 15:50:57,092 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 15:50:57,092 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 15:50:57,093 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 15:50:57,093 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 15:50:57,263 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 15:50:57,280 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 15:50:57,281 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 15:50:57,282 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 15:50:57,282 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 15:50:57,284 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-85.i
[2023-12-23 15:50:58,316 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 15:50:58,477 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 15:50:58,477 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-85.i
[2023-12-23 15:50:58,490 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0651d09fe/b0d4631a65b44abab40352e3be155cb2/FLAG5c9c1d30d
[2023-12-23 15:50:58,500 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0651d09fe/b0d4631a65b44abab40352e3be155cb2
[2023-12-23 15:50:58,501 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 15:50:58,502 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 15:50:58,503 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 15:50:58,503 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 15:50:58,510 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 15:50:58,511 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,512 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ddec3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58, skipping insertion in model container
[2023-12-23 15:50:58,512 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,532 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 15:50:58,640 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-cn_file-85.i[919,932]
[2023-12-23 15:50:58,697 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 15:50:58,719 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 15:50:58,728 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-cn_file-85.i[919,932]
[2023-12-23 15:50:58,753 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 15:50:58,765 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 15:50:58,765 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58 WrapperNode
[2023-12-23 15:50:58,765 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 15:50:58,766 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 15:50:58,766 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 15:50:58,766 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 15:50:58,775 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,792 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,817 INFO  L138                Inliner]: procedures = 27, calls = 54, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 235
[2023-12-23 15:50:58,817 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 15:50:58,818 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 15:50:58,818 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 15:50:58,818 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 15:50:58,828 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,828 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,832 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,848 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 15:50:58,848 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,848 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,858 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,860 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,862 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,863 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,866 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 15:50:58,866 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 15:50:58,866 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 15:50:58,866 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 15:50:58,867 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (1/1) ...
[2023-12-23 15:50:58,876 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 15:50:58,885 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 15:50:58,899 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 15:50:58,924 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 15:50:58,924 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 15:50:58,925 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 15:50:58,925 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 15:50:58,926 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 15:50:58,926 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 15:50:58,926 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 15:50:59,008 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 15:50:59,009 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 15:51:17,261 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 15:51:17,302 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 15:51:17,302 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 15:51:17,302 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:51:17 BoogieIcfgContainer
[2023-12-23 15:51:17,302 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 15:51:17,304 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 15:51:17,304 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 15:51:17,306 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 15:51:17,306 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:50:58" (1/3) ...
[2023-12-23 15:51:17,307 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6351403a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:51:17, skipping insertion in model container
[2023-12-23 15:51:17,308 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:50:58" (2/3) ...
[2023-12-23 15:51:17,309 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6351403a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:51:17, skipping insertion in model container
[2023-12-23 15:51:17,309 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:51:17" (3/3) ...
[2023-12-23 15:51:17,310 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-85.i
[2023-12-23 15:51:17,321 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 15:51:17,321 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 15:51:17,356 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 15:51:17,360 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;@2a787e56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 15:51:17,360 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 15:51:17,363 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 100 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 57 states have internal predecessors, (79), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41)
[2023-12-23 15:51:17,389 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 249
[2023-12-23 15:51:17,390 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:51:17,390 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:51:17,391 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:51:17,394 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:51:17,394 INFO  L85        PathProgramCache]: Analyzing trace with hash 1275766366, now seen corresponding path program 1 times
[2023-12-23 15:51:17,403 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:51:17,403 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201743657]
[2023-12-23 15:51:17,404 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:51:17,404 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 15:51:17,404 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:51:17,406 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 15:51:17,408 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 15:51:18,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:51:18,620 INFO  L262         TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 15:51:18,628 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:51:18,674 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 896 proven. 0 refuted. 0 times theorem prover too weak. 2384 trivial. 0 not checked.
[2023-12-23 15:51:18,675 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:51:18,675 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:51:18,675 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201743657]
[2023-12-23 15:51:18,676 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [201743657] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:51:18,676 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:51:18,676 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 15:51:18,677 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088869238]
[2023-12-23 15:51:18,678 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:51:18,687 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 15:51:18,687 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:51:18,707 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 15:51:18,708 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 15:51:18,711 INFO  L87              Difference]: Start difference. First operand  has 100 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 57 states have internal predecessors, (79), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41)
[2023-12-23 15:51:19,939 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 15:51:19,940 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:51:19,940 INFO  L93              Difference]: Finished difference Result 197 states and 361 transitions.
[2023-12-23 15:51:19,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 15:51:19,975 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 248
[2023-12-23 15:51:19,975 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:51:19,980 INFO  L225             Difference]: With dead ends: 197
[2023-12-23 15:51:19,980 INFO  L226             Difference]: Without dead ends: 98
[2023-12-23 15:51:19,982 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 247 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 15:51:19,984 INFO  L413           NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2023-12-23 15:51:19,985 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2023-12-23 15:51:19,995 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2023-12-23 15:51:20,016 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98.
[2023-12-23 15:51:20,018 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 55 states have internal predecessors, (74), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41)
[2023-12-23 15:51:20,019 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 156 transitions.
[2023-12-23 15:51:20,020 INFO  L78                 Accepts]: Start accepts. Automaton has 98 states and 156 transitions. Word has length 248
[2023-12-23 15:51:20,020 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:51:20,021 INFO  L495      AbstractCegarLoop]: Abstraction has 98 states and 156 transitions.
[2023-12-23 15:51:20,021 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41)
[2023-12-23 15:51:20,021 INFO  L276                IsEmpty]: Start isEmpty. Operand 98 states and 156 transitions.
[2023-12-23 15:51:20,028 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 249
[2023-12-23 15:51:20,028 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:51:20,029 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:51:20,056 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
[2023-12-23 15:51:20,244 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 15:51:20,245 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:51:20,245 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:51:20,245 INFO  L85        PathProgramCache]: Analyzing trace with hash 687914352, now seen corresponding path program 1 times
[2023-12-23 15:51:20,246 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:51:20,246 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118695750]
[2023-12-23 15:51:20,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:51:20,246 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 15:51:20,247 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:51:20,248 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 15:51:20,251 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 15:51:21,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:51:21,454 INFO  L262         TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 15:51:21,459 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:51:22,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 1218 proven. 27 refuted. 0 times theorem prover too weak. 2035 trivial. 0 not checked.
[2023-12-23 15:51:22,163 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 15:51:22,706 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 93 proven. 27 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked.
[2023-12-23 15:51:22,706 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:51:22,706 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118695750]
[2023-12-23 15:51:22,706 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118695750] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 15:51:22,706 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 15:51:22,707 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-23 15:51:22,707 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56014503]
[2023-12-23 15:51:22,707 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 15:51:22,708 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 15:51:22,708 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:51:22,709 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 15:51:22,709 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-23 15:51:22,709 INFO  L87              Difference]: Start difference. First operand 98 states and 156 transitions. Second operand  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51)
[2023-12-23 15:51:27,305 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 15:51:31,830 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 15:51:35,835 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 15:51:39,842 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 15:51:41,257 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 15:51:41,335 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:51:41,335 INFO  L93              Difference]: Finished difference Result 201 states and 316 transitions.
[2023-12-23 15:51:41,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 15:51:41,373 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 248
[2023-12-23 15:51:41,374 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:51:41,376 INFO  L225             Difference]: With dead ends: 201
[2023-12-23 15:51:41,376 INFO  L226             Difference]: Without dead ends: 104
[2023-12-23 15:51:41,377 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 488 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182
[2023-12-23 15:51:41,378 INFO  L413           NwaCegarLoop]: 105 mSDtfsCounter, 203 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 223 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time
[2023-12-23 15:51:41,378 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 231 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 212 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time]
[2023-12-23 15:51:41,378 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2023-12-23 15:51:41,397 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102.
[2023-12-23 15:51:41,398 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 58 states have internal predecessors, (76), 41 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41)
[2023-12-23 15:51:41,399 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 158 transitions.
[2023-12-23 15:51:41,399 INFO  L78                 Accepts]: Start accepts. Automaton has 102 states and 158 transitions. Word has length 248
[2023-12-23 15:51:41,401 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:51:41,401 INFO  L495      AbstractCegarLoop]: Abstraction has 102 states and 158 transitions.
[2023-12-23 15:51:41,401 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51)
[2023-12-23 15:51:41,401 INFO  L276                IsEmpty]: Start isEmpty. Operand 102 states and 158 transitions.
[2023-12-23 15:51:41,404 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 251
[2023-12-23 15:51:41,404 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:51:41,404 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:51:41,435 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
[2023-12-23 15:51:41,621 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 15:51:41,622 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:51:41,622 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:51:41,622 INFO  L85        PathProgramCache]: Analyzing trace with hash 1225995616, now seen corresponding path program 1 times
[2023-12-23 15:51:41,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:51:41,623 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973136753]
[2023-12-23 15:51:41,623 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:51:41,623 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 15:51:41,623 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:51:41,624 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 15:51:41,628 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-23 15:51:42,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:51:42,858 INFO  L262         TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 15:51:42,863 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:51:42,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked.
[2023-12-23 15:51:42,946 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:51:42,946 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:51:42,946 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973136753]
[2023-12-23 15:51:42,946 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [973136753] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:51:42,946 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:51:42,946 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 15:51:42,947 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021725394]
[2023-12-23 15:51:42,947 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:51:42,947 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 15:51:42,947 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:51:42,948 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 15:51:42,948 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 15:51:42,948 INFO  L87              Difference]: Start difference. First operand 102 states and 158 transitions. Second operand  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-23 15:51:44,471 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 15:51:44,566 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:51:44,566 INFO  L93              Difference]: Finished difference Result 257 states and 398 transitions.
[2023-12-23 15:51:44,567 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 15:51:44,567 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 250
[2023-12-23 15:51:44,568 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:51:44,569 INFO  L225             Difference]: With dead ends: 257
[2023-12-23 15:51:44,569 INFO  L226             Difference]: Without dead ends: 156
[2023-12-23 15:51:44,570 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 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 15:51:44,572 INFO  L413           NwaCegarLoop]: 191 mSDtfsCounter, 75 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2023-12-23 15:51:44,572 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 334 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2023-12-23 15:51:44,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156 states.
[2023-12-23 15:51:44,586 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 153.
[2023-12-23 15:51:44,586 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 153 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 94 states have internal predecessors, (125), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56)
[2023-12-23 15:51:44,588 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 237 transitions.
[2023-12-23 15:51:44,588 INFO  L78                 Accepts]: Start accepts. Automaton has 153 states and 237 transitions. Word has length 250
[2023-12-23 15:51:44,589 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:51:44,589 INFO  L495      AbstractCegarLoop]: Abstraction has 153 states and 237 transitions.
[2023-12-23 15:51:44,589 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-23 15:51:44,589 INFO  L276                IsEmpty]: Start isEmpty. Operand 153 states and 237 transitions.
[2023-12-23 15:51:44,591 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 251
[2023-12-23 15:51:44,592 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:51:44,592 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:51:44,624 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
[2023-12-23 15:51:44,807 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 15:51:44,810 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:51:44,810 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:51:44,810 INFO  L85        PathProgramCache]: Analyzing trace with hash 214878366, now seen corresponding path program 1 times
[2023-12-23 15:51:44,811 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:51:44,811 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901388816]
[2023-12-23 15:51:44,811 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:51:44,811 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:51:44,812 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:51:44,814 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 15:51:44,830 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 15:51:46,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:51:46,085 INFO  L262         TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 15:51:46,089 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:51:48,040 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked.
[2023-12-23 15:51:48,040 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:51:48,040 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:51:48,041 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901388816]
[2023-12-23 15:51:48,041 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [901388816] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:51:48,041 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:51:48,041 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 15:51:48,041 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778894555]
[2023-12-23 15:51:48,041 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:51:48,041 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 15:51:48,042 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:51:48,042 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 15:51:48,042 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 15:51:48,042 INFO  L87              Difference]: Start difference. First operand 153 states and 237 transitions. Second operand  has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-23 15:51:50,492 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 15:51:50,614 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:51:50,615 INFO  L93              Difference]: Finished difference Result 305 states and 473 transitions.
[2023-12-23 15:51:50,647 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 15:51:50,647 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 250
[2023-12-23 15:51:50,648 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:51:50,650 INFO  L225             Difference]: With dead ends: 305
[2023-12-23 15:51:50,650 INFO  L226             Difference]: Without dead ends: 153
[2023-12-23 15:51:50,651 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-23 15:51:50,651 INFO  L413           NwaCegarLoop]: 147 mSDtfsCounter, 126 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2023-12-23 15:51:50,651 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 194 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2023-12-23 15:51:50,652 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 153 states.
[2023-12-23 15:51:50,665 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153.
[2023-12-23 15:51:50,665 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 153 states, 93 states have (on average 1.3225806451612903) internal successors, (123), 94 states have internal predecessors, (123), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56)
[2023-12-23 15:51:50,666 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 235 transitions.
[2023-12-23 15:51:50,666 INFO  L78                 Accepts]: Start accepts. Automaton has 153 states and 235 transitions. Word has length 250
[2023-12-23 15:51:50,667 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:51:50,667 INFO  L495      AbstractCegarLoop]: Abstraction has 153 states and 235 transitions.
[2023-12-23 15:51:50,667 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-23 15:51:50,667 INFO  L276                IsEmpty]: Start isEmpty. Operand 153 states and 235 transitions.
[2023-12-23 15:51:50,669 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2023-12-23 15:51:50,669 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:51:50,669 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:51:50,700 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 15:51:50,876 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 15:51:50,876 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:51:50,877 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:51:50,877 INFO  L85        PathProgramCache]: Analyzing trace with hash 1894205330, now seen corresponding path program 1 times
[2023-12-23 15:51:50,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:51:50,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325618420]
[2023-12-23 15:51:50,878 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:51:50,878 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 15:51:50,878 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:51:50,879 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 15:51:50,880 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 15:51:52,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:51:52,142 INFO  L262         TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-23 15:51:52,147 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:51:57,768 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 1408 proven. 84 refuted. 0 times theorem prover too weak. 1788 trivial. 0 not checked.
[2023-12-23 15:51:57,768 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 15:51:59,422 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 36 proven. 84 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked.
[2023-12-23 15:51:59,422 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:51:59,422 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325618420]
[2023-12-23 15:51:59,422 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325618420] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 15:51:59,422 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 15:51:59,423 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14
[2023-12-23 15:51:59,423 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699921858]
[2023-12-23 15:51:59,423 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 15:51:59,423 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-23 15:51:59,423 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:51:59,424 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-23 15:51:59,424 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2023-12-23 15:51:59,425 INFO  L87              Difference]: Start difference. First operand 153 states and 235 transitions. Second operand  has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 4 states have call successors, (82), 3 states have call predecessors, (82), 5 states have return successors, (82), 4 states have call predecessors, (82), 4 states have call successors, (82)
[2023-12-23 15:52:04,457 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 15:52:09,492 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:52:09,493 INFO  L93              Difference]: Finished difference Result 588 states and 901 transitions.
[2023-12-23 15:52:09,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-23 15:52:09,493 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 4 states have call successors, (82), 3 states have call predecessors, (82), 5 states have return successors, (82), 4 states have call predecessors, (82), 4 states have call successors, (82) Word has length 251
[2023-12-23 15:52:09,494 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:52:09,496 INFO  L225             Difference]: With dead ends: 588
[2023-12-23 15:52:09,496 INFO  L226             Difference]: Without dead ends: 436
[2023-12-23 15:52:09,497 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 489 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812
[2023-12-23 15:52:09,499 INFO  L413           NwaCegarLoop]: 130 mSDtfsCounter, 354 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time
[2023-12-23 15:52:09,499 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 940 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time]
[2023-12-23 15:52:09,500 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 436 states.
[2023-12-23 15:52:09,533 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 328.
[2023-12-23 15:52:09,534 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 328 states, 200 states have (on average 1.3) internal successors, (260), 203 states have internal predecessors, (260), 119 states have call successors, (119), 8 states have call predecessors, (119), 8 states have return successors, (119), 116 states have call predecessors, (119), 119 states have call successors, (119)
[2023-12-23 15:52:09,536 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 498 transitions.
[2023-12-23 15:52:09,536 INFO  L78                 Accepts]: Start accepts. Automaton has 328 states and 498 transitions. Word has length 251
[2023-12-23 15:52:09,537 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:52:09,537 INFO  L495      AbstractCegarLoop]: Abstraction has 328 states and 498 transitions.
[2023-12-23 15:52:09,537 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 4 states have call successors, (82), 3 states have call predecessors, (82), 5 states have return successors, (82), 4 states have call predecessors, (82), 4 states have call successors, (82)
[2023-12-23 15:52:09,537 INFO  L276                IsEmpty]: Start isEmpty. Operand 328 states and 498 transitions.
[2023-12-23 15:52:09,539 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2023-12-23 15:52:09,539 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:52:09,539 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:52:09,572 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 15:52:09,756 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 15:52:09,756 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:52:09,757 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:52:09,757 INFO  L85        PathProgramCache]: Analyzing trace with hash 1142117006, now seen corresponding path program 1 times
[2023-12-23 15:52:09,757 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:52:09,757 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565333588]
[2023-12-23 15:52:09,757 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:52:09,758 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 15:52:09,758 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:52:09,760 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 15:52:09,760 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-12-23 15:52:10,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:52:11,060 INFO  L262         TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-23 15:52:11,066 INFO  L285         TraceCheckSpWp]: Computing forward predicates...