/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_fillercodesize_normal_file-14.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 22:45:54,948 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 22:45:55,016 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 22:45:55,022 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 22:45:55,022 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 22:45:55,049 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 22:45:55,049 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 22:45:55,050 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 22:45:55,050 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 22:45:55,053 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 22:45:55,053 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 22:45:55,053 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 22:45:55,054 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 22:45:55,055 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 22:45:55,055 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 22:45:55,055 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 22:45:55,055 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 22:45:55,056 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 22:45:55,056 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 22:45:55,057 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 22:45:55,057 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 22:45:55,057 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 22:45:55,057 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 22:45:55,057 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 22:45:55,057 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 22:45:55,058 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 22:45:55,058 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 22:45:55,058 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 22:45:55,058 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 22:45:55,058 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 22:45:55,059 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 22:45:55,059 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 22:45:55,059 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 22:45:55,059 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 22:45:55,059 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 22:45:55,059 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 22:45:55,060 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 22:45:55,060 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 22:45:55,060 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 22:45:55,060 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 22:45:55,060 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 22:45:55,060 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 22:45:55,061 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 22:45:55,061 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 22:45:55,061 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 22:45:55,061 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 22:45:55,061 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 22:45:55,270 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 22:45:55,283 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 22:45:55,285 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 22:45:55,286 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 22:45:55,288 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 22:45:55,289 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-14.i
[2023-12-22 22:45:56,299 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 22:45:56,483 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 22:45:56,483 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-14.i
[2023-12-22 22:45:56,493 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a23fd535a/6336322dd1ff49fcb84c3917271e8262/FLAGcd44fd620
[2023-12-22 22:45:56,506 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a23fd535a/6336322dd1ff49fcb84c3917271e8262
[2023-12-22 22:45:56,508 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 22:45:56,510 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 22:45:56,512 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 22:45:56,512 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 22:45:56,515 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 22:45:56,516 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,517 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622dc31c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56, skipping insertion in model container
[2023-12-22 22:45:56,517 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,548 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 22:45:56,658 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_fillercodesize_normal_file-14.i[913,926]
[2023-12-22 22:45:56,690 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 22:45:56,704 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 22:45:56,712 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_fillercodesize_normal_file-14.i[913,926]
[2023-12-22 22:45:56,730 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 22:45:56,743 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 22:45:56,743 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56 WrapperNode
[2023-12-22 22:45:56,743 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 22:45:56,744 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 22:45:56,744 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 22:45:56,744 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 22:45:56,752 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,759 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,779 INFO  L138                Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 145
[2023-12-22 22:45:56,780 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 22:45:56,780 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 22:45:56,780 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 22:45:56,780 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 22:45:56,792 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,793 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,808 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,824 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-22 22:45:56,825 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,825 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,831 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,834 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,835 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,836 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,839 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 22:45:56,840 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 22:45:56,840 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 22:45:56,840 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 22:45:56,840 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (1/1) ...
[2023-12-22 22:45:56,844 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 22:45:56,860 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 22:45:56,871 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-22 22:45:56,893 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-22 22:45:56,900 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 22:45:56,900 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 22:45:56,900 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 22:45:56,902 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 22:45:56,902 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 22:45:56,902 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 22:45:56,986 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 22:45:56,989 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 22:46:07,931 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 22:46:08,005 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 22:46:08,005 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 22:46:08,006 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:46:08 BoogieIcfgContainer
[2023-12-22 22:46:08,006 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 22:46:08,007 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 22:46:08,007 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 22:46:08,009 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 22:46:08,010 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:45:56" (1/3) ...
[2023-12-22 22:46:08,010 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bad142b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:46:08, skipping insertion in model container
[2023-12-22 22:46:08,010 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:45:56" (2/3) ...
[2023-12-22 22:46:08,010 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bad142b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:46:08, skipping insertion in model container
[2023-12-22 22:46:08,010 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:46:08" (3/3) ...
[2023-12-22 22:46:08,011 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-14.i
[2023-12-22 22:46:08,027 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 22:46:08,027 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 22:46:08,058 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 22:46:08,063 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;@6d8246d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 22:46:08,063 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 22:46:08,066 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 59 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2023-12-22 22:46:08,076 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2023-12-22 22:46:08,077 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:46:08,077 INFO  L195           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 22:46:08,078 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:46:08,081 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:46:08,081 INFO  L85        PathProgramCache]: Analyzing trace with hash 780097167, now seen corresponding path program 1 times
[2023-12-22 22:46:08,090 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:46:08,090 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756081534]
[2023-12-22 22:46:08,090 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:46:08,091 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 22:46:08,091 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:46:08,092 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 22:46:08,093 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-22 22:46:08,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:46:08,459 INFO  L262         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 22:46:08,467 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 22:46:08,496 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked.
[2023-12-22 22:46:08,496 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 22:46:08,497 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 22:46:08,497 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756081534]
[2023-12-22 22:46:08,497 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [756081534] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 22:46:08,497 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 22:46:08,498 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 22:46:08,499 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883934654]
[2023-12-22 22:46:08,499 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 22:46:08,502 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 22:46:08,502 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 22:46:08,525 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 22:46:08,525 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 22:46:08,527 INFO  L87              Difference]: Start difference. First operand  has 59 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)
[2023-12-22 22:46:12,700 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 22:46:12,701 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 22:46:12,702 INFO  L93              Difference]: Finished difference Result 115 states and 209 transitions.
[2023-12-22 22:46:12,754 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 22:46:12,755 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 139
[2023-12-22 22:46:12,755 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 22:46:12,760 INFO  L225             Difference]: With dead ends: 115
[2023-12-22 22:46:12,760 INFO  L226             Difference]: Without dead ends: 57
[2023-12-22 22:46:12,762 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 22:46:12,764 INFO  L413           NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2023-12-22 22:46:12,765 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time]
[2023-12-22 22:46:12,775 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2023-12-22 22:46:12,790 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2023-12-22 22:46:12,791 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2023-12-22 22:46:12,794 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 89 transitions.
[2023-12-22 22:46:12,795 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 89 transitions. Word has length 139
[2023-12-22 22:46:12,795 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 22:46:12,795 INFO  L495      AbstractCegarLoop]: Abstraction has 57 states and 89 transitions.
[2023-12-22 22:46:12,796 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)
[2023-12-22 22:46:12,796 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 89 transitions.
[2023-12-22 22:46:12,798 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2023-12-22 22:46:12,798 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:46:12,798 INFO  L195           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 22:46:12,809 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-22 22:46:13,000 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 22:46:13,001 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:46:13,001 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:46:13,002 INFO  L85        PathProgramCache]: Analyzing trace with hash 390352217, now seen corresponding path program 1 times
[2023-12-22 22:46:13,002 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:46:13,002 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054356512]
[2023-12-22 22:46:13,003 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:46:13,004 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 22:46:13,004 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:46:13,006 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 22:46:13,010 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-22 22:46:13,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:46:13,341 INFO  L262         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 22:46:13,345 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 22:46:15,529 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2023-12-22 22:46:15,530 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 22:46:15,530 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 22:46:15,530 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054356512]
[2023-12-22 22:46:15,530 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054356512] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 22:46:15,530 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 22:46:15,531 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 22:46:15,531 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872489060]
[2023-12-22 22:46:15,531 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 22:46:15,532 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 22:46:15,532 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 22:46:15,533 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 22:46:15,533 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 22:46:15,533 INFO  L87              Difference]: Start difference. First operand 57 states and 89 transitions. Second operand  has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2023-12-22 22:46:17,487 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 22:46:19,687 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 22:46:24,078 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 22:46:29,024 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 22:46:33,151 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 22:46:33,152 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 22:46:33,152 INFO  L93              Difference]: Finished difference Result 169 states and 265 transitions.
[2023-12-22 22:46:33,191 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 22:46:33,191 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 139
[2023-12-22 22:46:33,192 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 22:46:33,193 INFO  L225             Difference]: With dead ends: 169
[2023-12-22 22:46:33,193 INFO  L226             Difference]: Without dead ends: 113
[2023-12-22 22:46:33,194 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 22:46:33,196 INFO  L413           NwaCegarLoop]: 92 mSDtfsCounter, 20 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time
[2023-12-22 22:46:33,197 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 171 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time]
[2023-12-22 22:46:33,198 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2023-12-22 22:46:33,213 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111.
[2023-12-22 22:46:33,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 111 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 62 states have internal predecessors, (83), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2023-12-22 22:46:33,215 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 175 transitions.
[2023-12-22 22:46:33,215 INFO  L78                 Accepts]: Start accepts. Automaton has 111 states and 175 transitions. Word has length 139
[2023-12-22 22:46:33,216 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 22:46:33,216 INFO  L495      AbstractCegarLoop]: Abstraction has 111 states and 175 transitions.
[2023-12-22 22:46:33,216 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2023-12-22 22:46:33,216 INFO  L276                IsEmpty]: Start isEmpty. Operand 111 states and 175 transitions.
[2023-12-22 22:46:33,218 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2023-12-22 22:46:33,218 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:46:33,218 INFO  L195           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 22:46:33,231 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-22 22:46:33,421 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 22:46:33,422 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:46:33,422 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:46:33,422 INFO  L85        PathProgramCache]: Analyzing trace with hash -1384655145, now seen corresponding path program 1 times
[2023-12-22 22:46:33,423 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:46:33,423 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707520202]
[2023-12-22 22:46:33,423 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:46:33,423 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 22:46:33,423 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:46:33,424 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 22:46:33,425 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-22 22:46:33,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:46:33,722 INFO  L262         TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-22 22:46:33,729 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 22:46:48,079 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 318 proven. 54 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked.
[2023-12-22 22:46:48,079 INFO  L327         TraceCheckSpWp]: Computing backward predicates...