/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-68.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 23:23:10,509 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 23:23:10,579 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 23:23:10,584 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 23:23:10,584 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 23:23:10,611 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 23:23:10,611 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 23:23:10,612 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 23:23:10,612 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 23:23:10,615 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 23:23:10,615 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 23:23:10,616 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 23:23:10,616 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 23:23:10,617 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 23:23:10,617 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 23:23:10,618 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 23:23:10,618 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 23:23:10,618 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 23:23:10,618 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 23:23:10,619 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 23:23:10,619 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 23:23:10,620 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 23:23:10,620 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 23:23:10,620 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 23:23:10,620 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 23:23:10,620 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 23:23:10,621 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 23:23:10,621 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 23:23:10,621 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 23:23:10,621 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 23:23:10,622 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 23:23:10,622 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 23:23:10,623 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 23:23:10,623 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 23:23:10,623 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 23:23:10,623 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 23:23:10,623 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 23:23:10,623 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 23:23:10,624 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 23:23:10,624 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 23:23:10,624 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 23:23:10,624 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 23:23:10,624 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 23:23:10,624 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 23:23:10,625 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 23:23:10,625 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 23:23:10,625 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 23:23:10,833 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 23:23:10,849 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 23:23:10,851 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 23:23:10,852 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 23:23:10,852 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 23:23:10,854 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-68.i
[2023-12-22 23:23:11,882 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 23:23:12,044 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 23:23:12,045 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-68.i
[2023-12-22 23:23:12,052 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/462ecdf49/c504964d839445e8bf6aaba2baa93eb7/FLAG89ed282ce
[2023-12-22 23:23:12,062 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/462ecdf49/c504964d839445e8bf6aaba2baa93eb7
[2023-12-22 23:23:12,063 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 23:23:12,065 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 23:23:12,065 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 23:23:12,065 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 23:23:12,071 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 23:23:12,071 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,072 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff7a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12, skipping insertion in model container
[2023-12-22 23:23:12,072 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,095 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 23:23:12,186 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-68.i[913,926]
[2023-12-22 23:23:12,222 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 23:23:12,234 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 23:23:12,243 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-68.i[913,926]
[2023-12-22 23:23:12,259 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 23:23:12,273 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 23:23:12,273 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12 WrapperNode
[2023-12-22 23:23:12,274 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 23:23:12,274 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 23:23:12,274 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 23:23:12,274 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 23:23:12,279 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,286 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,313 INFO  L138                Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111
[2023-12-22 23:23:12,314 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 23:23:12,314 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 23:23:12,314 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 23:23:12,314 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 23:23:12,321 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,322 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,335 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,347 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 23:23:12,348 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,348 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,353 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,355 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,356 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,357 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,359 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 23:23:12,359 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 23:23:12,359 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 23:23:12,360 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 23:23:12,370 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (1/1) ...
[2023-12-22 23:23:12,374 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 23:23:12,381 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 23:23:12,390 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 23:23:12,410 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 23:23:12,410 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 23:23:12,410 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 23:23:12,410 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 23:23:12,411 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 23:23:12,411 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 23:23:12,408 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 23:23:12,484 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 23:23:12,485 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 23:23:12,901 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 23:23:12,929 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 23:23:12,929 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 23:23:12,929 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:23:12 BoogieIcfgContainer
[2023-12-22 23:23:12,930 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 23:23:12,931 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 23:23:12,932 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 23:23:12,934 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 23:23:12,934 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:23:12" (1/3) ...
[2023-12-22 23:23:12,935 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df9ef26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:23:12, skipping insertion in model container
[2023-12-22 23:23:12,935 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:23:12" (2/3) ...
[2023-12-22 23:23:12,936 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df9ef26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:23:12, skipping insertion in model container
[2023-12-22 23:23:12,936 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:23:12" (3/3) ...
[2023-12-22 23:23:12,937 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-68.i
[2023-12-22 23:23:12,949 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 23:23:12,949 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 23:23:12,987 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 23:23:12,992 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;@1d0aff87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 23:23:12,992 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 23:23:12,996 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 43 states, 30 states have (on average 1.5) internal successors, (45), 31 states have internal predecessors, (45), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2023-12-22 23:23:13,003 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2023-12-22 23:23:13,003 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:23:13,003 INFO  L195           NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:23:13,004 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:23:13,009 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:23:13,009 INFO  L85        PathProgramCache]: Analyzing trace with hash -1686192283, now seen corresponding path program 1 times
[2023-12-22 23:23:13,031 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:23:13,032 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537126475]
[2023-12-22 23:23:13,032 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:23:13,032 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 23:23:13,032 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:23:13,042 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 23:23:13,050 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 23:23:13,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:23:13,221 INFO  L262         TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 23:23:13,226 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:23:13,265 INFO  L134       CoverageAnalysis]: Checked inductivity of 180 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked.
[2023-12-22 23:23:13,266 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:23:13,266 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:23:13,267 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537126475]
[2023-12-22 23:23:13,267 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [537126475] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:23:13,267 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 23:23:13,267 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 23:23:13,269 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083667566]
[2023-12-22 23:23:13,271 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:23:13,274 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 23:23:13,275 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:23:13,297 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 23:23:13,297 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 23:23:13,299 INFO  L87              Difference]: Start difference. First operand  has 43 states, 30 states have (on average 1.5) internal successors, (45), 31 states have internal predecessors, (45), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)
[2023-12-22 23:23:13,658 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:23:13,658 INFO  L93              Difference]: Finished difference Result 83 states and 138 transitions.
[2023-12-22 23:23:13,670 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 23:23:13,672 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 71
[2023-12-22 23:23:13,672 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:23:13,676 INFO  L225             Difference]: With dead ends: 83
[2023-12-22 23:23:13,676 INFO  L226             Difference]: Without dead ends: 41
[2023-12-22 23:23:13,679 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 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 23:23:13,681 INFO  L413           NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-22 23:23:13,681 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-22 23:23:13,692 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2023-12-22 23:23:13,704 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2023-12-22 23:23:13,705 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2023-12-22 23:23:13,706 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 60 transitions.
[2023-12-22 23:23:13,706 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 60 transitions. Word has length 71
[2023-12-22 23:23:13,707 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:23:13,707 INFO  L495      AbstractCegarLoop]: Abstraction has 41 states and 60 transitions.
[2023-12-22 23:23:13,707 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)
[2023-12-22 23:23:13,707 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions.
[2023-12-22 23:23:13,709 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2023-12-22 23:23:13,709 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:23:13,709 INFO  L195           NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:23:13,715 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 23:23:13,912 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 23:23:13,913 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:23:13,914 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:23:13,914 INFO  L85        PathProgramCache]: Analyzing trace with hash 643243369, now seen corresponding path program 1 times
[2023-12-22 23:23:13,914 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:23:13,914 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291166355]
[2023-12-22 23:23:13,915 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:23:13,915 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 23:23:13,915 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:23:13,916 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 23:23:13,919 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 23:23:14,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:23:14,047 INFO  L262         TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-22 23:23:14,050 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:23:14,313 INFO  L134       CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2023-12-22 23:23:14,313 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:23:14,313 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:23:14,316 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291166355]
[2023-12-22 23:23:14,317 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [291166355] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:23:14,317 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 23:23:14,317 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-22 23:23:14,317 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693747421]
[2023-12-22 23:23:14,318 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:23:14,319 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-22 23:23:14,319 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:23:14,320 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-22 23:23:14,320 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2023-12-22 23:23:14,321 INFO  L87              Difference]: Start difference. First operand 41 states and 60 transitions. Second operand  has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10)
[2023-12-22 23:23:15,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:23:15,835 INFO  L93              Difference]: Finished difference Result 177 states and 258 transitions.
[2023-12-22 23:23:15,845 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-22 23:23:15,845 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 71
[2023-12-22 23:23:15,846 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:23:15,847 INFO  L225             Difference]: With dead ends: 177
[2023-12-22 23:23:15,847 INFO  L226             Difference]: Without dead ends: 137
[2023-12-22 23:23:15,848 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156
[2023-12-22 23:23:15,848 INFO  L413           NwaCegarLoop]: 80 mSDtfsCounter, 203 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2023-12-22 23:23:15,849 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 266 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2023-12-22 23:23:15,849 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 137 states.
[2023-12-22 23:23:15,860 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 68.
[2023-12-22 23:23:15,861 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-22 23:23:15,862 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions.
[2023-12-22 23:23:15,862 INFO  L78                 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 71
[2023-12-22 23:23:15,862 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:23:15,862 INFO  L495      AbstractCegarLoop]: Abstraction has 68 states and 100 transitions.
[2023-12-22 23:23:15,862 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10)
[2023-12-22 23:23:15,863 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions.
[2023-12-22 23:23:15,863 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2023-12-22 23:23:15,863 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:23:15,864 INFO  L195           NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:23:15,869 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 23:23:16,066 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 23:23:16,066 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:23:16,067 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:23:16,067 INFO  L85        PathProgramCache]: Analyzing trace with hash 250216359, now seen corresponding path program 1 times
[2023-12-22 23:23:16,067 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:23:16,067 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285786633]
[2023-12-22 23:23:16,068 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:23:16,068 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 23:23:16,068 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:23:16,069 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 23:23:16,071 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 23:23:16,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:23:16,181 INFO  L262         TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 23:23:16,184 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:23:16,250 INFO  L134       CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2023-12-22 23:23:16,251 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:23:16,251 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:23:16,251 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285786633]
[2023-12-22 23:23:16,251 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285786633] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:23:16,251 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 23:23:16,251 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 23:23:16,252 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965838193]
[2023-12-22 23:23:16,252 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:23:16,252 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 23:23:16,252 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:23:16,253 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 23:23:16,253 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-22 23:23:16,253 INFO  L87              Difference]: Start difference. First operand 68 states and 100 transitions. Second operand  has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10)
[2023-12-22 23:23:16,572 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:23:16,572 INFO  L93              Difference]: Finished difference Result 108 states and 159 transitions.
[2023-12-22 23:23:16,582 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 23:23:16,582 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 71
[2023-12-22 23:23:16,582 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:23:16,583 INFO  L225             Difference]: With dead ends: 108
[2023-12-22 23:23:16,583 INFO  L226             Difference]: Without dead ends: 68
[2023-12-22 23:23:16,584 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-22 23:23:16,584 INFO  L413           NwaCegarLoop]: 48 mSDtfsCounter, 63 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-22 23:23:16,585 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 89 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-22 23:23:16,586 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2023-12-22 23:23:16,598 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2023-12-22 23:23:16,598 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 45 states have internal predecessors, (59), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-22 23:23:16,599 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions.
[2023-12-22 23:23:16,599 INFO  L78                 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 71
[2023-12-22 23:23:16,600 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:23:16,600 INFO  L495      AbstractCegarLoop]: Abstraction has 68 states and 99 transitions.
[2023-12-22 23:23:16,600 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10)
[2023-12-22 23:23:16,600 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions.
[2023-12-22 23:23:16,601 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2023-12-22 23:23:16,601 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:23:16,601 INFO  L195           NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:23:16,611 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-22 23:23:16,801 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 23:23:16,802 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:23:16,802 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:23:16,802 INFO  L85        PathProgramCache]: Analyzing trace with hash -2125272595, now seen corresponding path program 1 times
[2023-12-22 23:23:16,803 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:23:16,803 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677393164]
[2023-12-22 23:23:16,803 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:23:16,803 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 23:23:16,803 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:23:16,804 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 23:23:16,808 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-22 23:23:16,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:23:16,919 INFO  L262         TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-22 23:23:16,923 INFO  L285         TraceCheckSpWp]: Computing forward predicates...