/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-49.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 08:35:55,220 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 08:35:55,287 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 08:35:55,291 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 08:35:55,291 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 08:35:55,312 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 08:35:55,313 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 08:35:55,313 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 08:35:55,313 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 08:35:55,316 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 08:35:55,316 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 08:35:55,317 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 08:35:55,317 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 08:35:55,318 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 08:35:55,318 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 08:35:55,318 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 08:35:55,319 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 08:35:55,319 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 08:35:55,319 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 08:35:55,319 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 08:35:55,319 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 08:35:55,320 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 08:35:55,320 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 08:35:55,320 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 08:35:55,320 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 08:35:55,320 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 08:35:55,321 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 08:35:55,321 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 08:35:55,321 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 08:35:55,321 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 08:35:55,322 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 08:35:55,322 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 08:35:55,322 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 08:35:55,322 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 08:35:55,322 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 08:35:55,322 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 08:35:55,323 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 08:35:55,323 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 08:35:55,323 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 08:35:55,323 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 08:35:55,323 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 08:35:55,323 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 08:35:55,324 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 08:35:55,324 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 08:35:55,324 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 08:35:55,324 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 08:35:55,324 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 08:35:55,513 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 08:35:55,531 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 08:35:55,532 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 08:35:55,533 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 08:35:55,533 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 08:35:55,534 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-49.i
[2023-12-23 08:35:56,522 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 08:35:56,685 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 08:35:56,686 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-49.i
[2023-12-23 08:35:56,694 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845cf382d/406a062618064319a8d8680a9a621502/FLAG3e3fc7dec
[2023-12-23 08:35:56,708 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845cf382d/406a062618064319a8d8680a9a621502
[2023-12-23 08:35:56,710 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 08:35:56,711 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 08:35:56,713 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 08:35:56,713 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 08:35:56,716 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 08:35:56,717 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:56,718 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b43c1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56, skipping insertion in model container
[2023-12-23 08:35:56,718 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:56,749 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 08:35:56,863 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-49.i[919,932]
[2023-12-23 08:35:56,916 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 08:35:56,928 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 08:35:56,935 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-49.i[919,932]
[2023-12-23 08:35:56,962 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 08:35:56,974 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 08:35:56,974 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56 WrapperNode
[2023-12-23 08:35:56,974 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 08:35:56,975 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 08:35:56,975 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 08:35:56,975 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 08:35:56,985 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,004 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,028 INFO  L138                Inliner]: procedures = 27, calls = 52, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 228
[2023-12-23 08:35:57,028 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 08:35:57,029 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 08:35:57,029 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 08:35:57,029 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 08:35:57,037 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,037 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,039 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,057 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-23 08:35:57,057 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,058 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,069 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,071 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,073 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,075 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,077 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 08:35:57,078 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 08:35:57,078 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 08:35:57,078 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 08:35:57,078 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (1/1) ...
[2023-12-23 08:35:57,082 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 08:35:57,096 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 08:35:57,108 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-23 08:35:57,113 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-23 08:35:57,129 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 08:35:57,130 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 08:35:57,130 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 08:35:57,131 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 08:35:57,131 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 08:35:57,131 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 08:35:57,225 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 08:35:57,228 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 08:35:58,017 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 08:35:58,057 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 08:35:58,057 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 08:35:58,058 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:35:58 BoogieIcfgContainer
[2023-12-23 08:35:58,058 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 08:35:58,060 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 08:35:58,060 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 08:35:58,076 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 08:35:58,076 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 08:35:56" (1/3) ...
[2023-12-23 08:35:58,077 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f9cb89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:35:58, skipping insertion in model container
[2023-12-23 08:35:58,077 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:35:56" (2/3) ...
[2023-12-23 08:35:58,077 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f9cb89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:35:58, skipping insertion in model container
[2023-12-23 08:35:58,077 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:35:58" (3/3) ...
[2023-12-23 08:35:58,079 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-49.i
[2023-12-23 08:35:58,093 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 08:35:58,093 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 08:35:58,130 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 08:35:58,134 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;@7774570f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 08:35:58,134 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 08:35:58,140 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 94 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39)
[2023-12-23 08:35:58,156 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 237
[2023-12-23 08:35:58,156 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:35:58,156 INFO  L195           NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 08:35:58,157 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:35:58,161 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:35:58,161 INFO  L85        PathProgramCache]: Analyzing trace with hash 1935250652, now seen corresponding path program 1 times
[2023-12-23 08:35:58,172 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:35:58,172 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467342163]
[2023-12-23 08:35:58,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:35:58,173 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 08:35:58,173 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:35:58,175 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 08:35:58,180 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 08:35:58,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:35:58,646 INFO  L262         TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 08:35:58,657 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:35:58,699 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 1196 proven. 0 refuted. 0 times theorem prover too weak. 1768 trivial. 0 not checked.
[2023-12-23 08:35:58,700 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:35:58,700 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:35:58,700 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467342163]
[2023-12-23 08:35:58,704 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467342163] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:35:58,704 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:35:58,704 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 08:35:58,705 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295852512]
[2023-12-23 08:35:58,706 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:35:58,709 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 08:35:58,709 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:35:58,729 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 08:35:58,730 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 08:35:58,732 INFO  L87              Difference]: Start difference. First operand  has 94 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39)
[2023-12-23 08:35:58,826 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:35:58,827 INFO  L93              Difference]: Finished difference Result 184 states and 341 transitions.
[2023-12-23 08:35:58,833 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 08:35:58,834 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 236
[2023-12-23 08:35:58,834 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:35:58,839 INFO  L225             Difference]: With dead ends: 184
[2023-12-23 08:35:58,839 INFO  L226             Difference]: Without dead ends: 91
[2023-12-23 08:35:58,841 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 08:35:58,844 INFO  L413           NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 08:35:58,844 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 08:35:58,854 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2023-12-23 08:35:58,871 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91.
[2023-12-23 08:35:58,872 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 50 states have (on average 1.3) internal successors, (65), 50 states have internal predecessors, (65), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39)
[2023-12-23 08:35:58,873 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 143 transitions.
[2023-12-23 08:35:58,874 INFO  L78                 Accepts]: Start accepts. Automaton has 91 states and 143 transitions. Word has length 236
[2023-12-23 08:35:58,874 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:35:58,875 INFO  L495      AbstractCegarLoop]: Abstraction has 91 states and 143 transitions.
[2023-12-23 08:35:58,875 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39)
[2023-12-23 08:35:58,875 INFO  L276                IsEmpty]: Start isEmpty. Operand 91 states and 143 transitions.
[2023-12-23 08:35:58,878 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 237
[2023-12-23 08:35:58,878 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:35:58,879 INFO  L195           NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 08:35:58,891 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-23 08:35:59,079 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 08:35:59,079 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:35:59,080 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:35:59,080 INFO  L85        PathProgramCache]: Analyzing trace with hash -1811668278, now seen corresponding path program 1 times
[2023-12-23 08:35:59,081 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:35:59,081 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207727629]
[2023-12-23 08:35:59,081 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:35:59,081 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 08:35:59,081 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:35:59,082 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 08:35:59,083 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-23 08:35:59,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:35:59,467 INFO  L262         TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 08:35:59,473 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:35:59,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked.
[2023-12-23 08:35:59,811 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:35:59,812 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:35:59,812 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207727629]
[2023-12-23 08:35:59,812 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207727629] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:35:59,813 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:35:59,813 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 08:35:59,813 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735435263]
[2023-12-23 08:35:59,813 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:35:59,814 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 08:35:59,814 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:35:59,815 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 08:35:59,815 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 08:35:59,815 INFO  L87              Difference]: Start difference. First operand 91 states and 143 transitions. Second operand  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39)
[2023-12-23 08:36:00,143 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:36:00,143 INFO  L93              Difference]: Finished difference Result 278 states and 438 transitions.
[2023-12-23 08:36:00,149 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 08:36:00,149 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 236
[2023-12-23 08:36:00,150 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:36:00,153 INFO  L225             Difference]: With dead ends: 278
[2023-12-23 08:36:00,153 INFO  L226             Difference]: Without dead ends: 188
[2023-12-23 08:36:00,154 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 08:36:00,154 INFO  L413           NwaCegarLoop]: 138 mSDtfsCounter, 84 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 08:36:00,155 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 416 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 08:36:00,155 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 188 states.
[2023-12-23 08:36:00,192 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 159.
[2023-12-23 08:36:00,193 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 159 states, 78 states have (on average 1.1923076923076923) internal successors, (93), 78 states have internal predecessors, (93), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78)
[2023-12-23 08:36:00,194 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 249 transitions.
[2023-12-23 08:36:00,194 INFO  L78                 Accepts]: Start accepts. Automaton has 159 states and 249 transitions. Word has length 236
[2023-12-23 08:36:00,195 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:36:00,195 INFO  L495      AbstractCegarLoop]: Abstraction has 159 states and 249 transitions.
[2023-12-23 08:36:00,195 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39)
[2023-12-23 08:36:00,195 INFO  L276                IsEmpty]: Start isEmpty. Operand 159 states and 249 transitions.
[2023-12-23 08:36:00,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 238
[2023-12-23 08:36:00,199 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:36:00,200 INFO  L195           NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 08:36:00,216 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-23 08:36:00,414 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 08:36:00,414 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:36:00,414 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:36:00,415 INFO  L85        PathProgramCache]: Analyzing trace with hash -1830262193, now seen corresponding path program 1 times
[2023-12-23 08:36:00,415 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:36:00,415 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832784492]
[2023-12-23 08:36:00,415 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:36:00,415 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 08:36:00,416 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:36:00,416 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 08:36:00,417 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-23 08:36:00,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:36:00,771 INFO  L262         TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 08:36:00,775 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:36:01,051 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked.
[2023-12-23 08:36:01,051 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:36:01,052 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:36:01,055 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832784492]
[2023-12-23 08:36:01,056 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832784492] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:36:01,056 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:36:01,058 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 08:36:01,062 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395667434]
[2023-12-23 08:36:01,062 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:36:01,063 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 08:36:01,063 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:36:01,064 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 08:36:01,064 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 08:36:01,065 INFO  L87              Difference]: Start difference. First operand 159 states and 249 transitions. Second operand  has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39)
[2023-12-23 08:36:01,373 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:36:01,373 INFO  L93              Difference]: Finished difference Result 363 states and 567 transitions.
[2023-12-23 08:36:01,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 08:36:01,374 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 237
[2023-12-23 08:36:01,374 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:36:01,376 INFO  L225             Difference]: With dead ends: 363
[2023-12-23 08:36:01,376 INFO  L226             Difference]: Without dead ends: 272
[2023-12-23 08:36:01,377 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 08:36:01,378 INFO  L413           NwaCegarLoop]: 171 mSDtfsCounter, 90 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 08:36:01,378 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 449 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 08:36:01,378 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 272 states.
[2023-12-23 08:36:01,410 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 252.
[2023-12-23 08:36:01,411 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 252 states, 131 states have (on average 1.2290076335877862) internal successors, (161), 131 states have internal predecessors, (161), 117 states have call successors, (117), 3 states have call predecessors, (117), 3 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117)
[2023-12-23 08:36:01,412 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 395 transitions.
[2023-12-23 08:36:01,412 INFO  L78                 Accepts]: Start accepts. Automaton has 252 states and 395 transitions. Word has length 237
[2023-12-23 08:36:01,413 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:36:01,413 INFO  L495      AbstractCegarLoop]: Abstraction has 252 states and 395 transitions.
[2023-12-23 08:36:01,413 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39)
[2023-12-23 08:36:01,413 INFO  L276                IsEmpty]: Start isEmpty. Operand 252 states and 395 transitions.
[2023-12-23 08:36:01,415 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 238
[2023-12-23 08:36:01,415 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:36:01,415 INFO  L195           NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 08:36:01,430 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-23 08:36:01,624 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 08:36:01,625 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:36:01,625 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:36:01,625 INFO  L85        PathProgramCache]: Analyzing trace with hash -1243456179, now seen corresponding path program 1 times
[2023-12-23 08:36:01,626 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:36:01,626 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213433715]
[2023-12-23 08:36:01,626 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:36:01,626 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 08:36:01,626 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:36:01,627 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 08:36:01,648 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-23 08:36:02,001 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:36:02,020 INFO  L262         TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-23 08:36:02,027 INFO  L285         TraceCheckSpWp]: Computing forward predicates...