/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-pr-cn_file-67.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 12:15:41,499 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 12:15:41,568 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 12:15:41,574 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 12:15:41,575 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 12:15:41,588 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 12:15:41,589 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 12:15:41,589 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 12:15:41,589 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 12:15:41,590 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 12:15:41,590 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 12:15:41,590 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 12:15:41,590 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 12:15:41,591 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 12:15:41,591 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 12:15:41,591 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 12:15:41,591 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 12:15:41,591 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 12:15:41,592 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 12:15:41,592 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 12:15:41,592 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 12:15:41,595 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 12:15:41,595 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 12:15:41,596 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 12:15:41,597 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 12:15:41,597 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 12:15:41,597 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 12:15:41,597 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 12:15:41,597 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 12:15:41,598 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 12:15:41,598 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 12:15:41,598 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 12:15:41,598 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 12:15:41,598 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 12:15:41,598 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:15:41,599 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 12:15:41,599 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 12:15:41,599 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 12:15:41,599 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 12:15:41,599 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 12:15:41,599 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 12:15:41,602 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 12:15:41,603 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 12:15:41,603 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 12:15:41,603 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 12:15:41,603 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 12:15:41,603 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 12:15:41,807 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 12:15:41,825 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 12:15:41,828 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 12:15:41,829 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 12:15:41,829 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 12:15:41,831 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-67.i
[2023-12-23 12:15:42,832 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 12:15:43,048 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 12:15:43,048 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-67.i
[2023-12-23 12:15:43,062 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24f2779b3/8aab2614c6b6427f998ba86e37efaf8b/FLAG1df139863
[2023-12-23 12:15:43,077 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24f2779b3/8aab2614c6b6427f998ba86e37efaf8b
[2023-12-23 12:15:43,079 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 12:15:43,080 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 12:15:43,084 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 12:15:43,084 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 12:15:43,087 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 12:15:43,088 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,088 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318dbb02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43, skipping insertion in model container
[2023-12-23 12:15:43,088 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,126 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 12:15:43,237 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-pr-cn_file-67.i[919,932]
[2023-12-23 12:15:43,286 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:15:43,315 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 12:15:43,335 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-pr-cn_file-67.i[919,932]
[2023-12-23 12:15:43,365 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:15:43,378 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 12:15:43,378 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43 WrapperNode
[2023-12-23 12:15:43,378 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 12:15:43,379 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 12:15:43,379 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 12:15:43,379 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 12:15:43,384 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,394 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,430 INFO  L138                Inliner]: procedures = 27, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 272
[2023-12-23 12:15:43,431 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 12:15:43,431 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 12:15:43,431 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 12:15:43,431 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 12:15:43,440 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,441 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,445 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,456 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 12:15:43,456 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,456 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,465 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,468 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,470 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,471 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,474 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 12:15:43,475 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 12:15:43,475 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 12:15:43,475 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 12:15:43,476 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (1/1) ...
[2023-12-23 12:15:43,482 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:15:43,491 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 12:15:43,501 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 12:15:43,515 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 12:15:43,532 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 12:15:43,532 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 12:15:43,532 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 12:15:43,532 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 12:15:43,532 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 12:15:43,532 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 12:15:43,627 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 12:15:43,630 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 12:15:45,686 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 12:15:45,743 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 12:15:45,743 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 12:15:45,744 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:15:45 BoogieIcfgContainer
[2023-12-23 12:15:45,744 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 12:15:45,767 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 12:15:45,768 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 12:15:45,770 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 12:15:45,770 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:15:43" (1/3) ...
[2023-12-23 12:15:45,771 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fedc302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:15:45, skipping insertion in model container
[2023-12-23 12:15:45,772 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:15:43" (2/3) ...
[2023-12-23 12:15:45,772 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fedc302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:15:45, skipping insertion in model container
[2023-12-23 12:15:45,772 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:15:45" (3/3) ...
[2023-12-23 12:15:45,773 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-67.i
[2023-12-23 12:15:45,786 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 12:15:45,786 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 12:15:45,822 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 12:15:45,827 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;@1d0ff859, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 12:15:45,828 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 12:15:45,834 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 118 states, 65 states have (on average 1.4) internal successors, (91), 66 states have internal predecessors, (91), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-23 12:15:45,857 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 298
[2023-12-23 12:15:45,858 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:15:45,858 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:15:45,859 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:15:45,862 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:15:45,863 INFO  L85        PathProgramCache]: Analyzing trace with hash -119816482, now seen corresponding path program 1 times
[2023-12-23 12:15:45,875 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:15:45,876 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157407924]
[2023-12-23 12:15:45,876 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:15:45,876 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 12:15:45,876 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:15:45,878 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 12:15:45,880 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 12:15:46,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:15:46,300 INFO  L262         TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 12:15:46,325 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:15:46,401 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 2330 proven. 0 refuted. 0 times theorem prover too weak. 2570 trivial. 0 not checked.
[2023-12-23 12:15:46,401 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:15:46,402 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:15:46,402 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157407924]
[2023-12-23 12:15:46,403 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157407924] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:15:46,403 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:15:46,403 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 12:15:46,404 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744969462]
[2023-12-23 12:15:46,405 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:15:46,408 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 12:15:46,408 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:15:46,427 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 12:15:46,428 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 12:15:46,430 INFO  L87              Difference]: Start difference. First operand  has 118 states, 65 states have (on average 1.4) internal successors, (91), 66 states have internal predecessors, (91), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2023-12-23 12:15:47,360 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:15:47,360 INFO  L93              Difference]: Finished difference Result 233 states and 430 transitions.
[2023-12-23 12:15:47,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 12:15:47,385 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 297
[2023-12-23 12:15:47,386 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:15:47,394 INFO  L225             Difference]: With dead ends: 233
[2023-12-23 12:15:47,394 INFO  L226             Difference]: Without dead ends: 116
[2023-12-23 12:15:47,397 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 296 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 12:15:47,399 INFO  L413           NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-23 12:15:47,400 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-23 12:15:47,411 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 116 states.
[2023-12-23 12:15:47,432 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116.
[2023-12-23 12:15:47,433 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 116 states, 64 states have (on average 1.34375) internal successors, (86), 64 states have internal predecessors, (86), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-23 12:15:47,435 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 186 transitions.
[2023-12-23 12:15:47,436 INFO  L78                 Accepts]: Start accepts. Automaton has 116 states and 186 transitions. Word has length 297
[2023-12-23 12:15:47,436 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:15:47,436 INFO  L495      AbstractCegarLoop]: Abstraction has 116 states and 186 transitions.
[2023-12-23 12:15:47,437 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2023-12-23 12:15:47,437 INFO  L276                IsEmpty]: Start isEmpty. Operand 116 states and 186 transitions.
[2023-12-23 12:15:47,440 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 298
[2023-12-23 12:15:47,440 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:15:47,441 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:15:47,461 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 12:15:47,658 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 12:15:47,658 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:15:47,659 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:15:47,659 INFO  L85        PathProgramCache]: Analyzing trace with hash 509516838, now seen corresponding path program 1 times
[2023-12-23 12:15:47,660 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:15:47,660 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612313024]
[2023-12-23 12:15:47,660 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:15:47,660 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 12:15:47,661 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:15:47,662 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 12:15:47,666 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 12:15:48,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:15:48,099 INFO  L262         TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 12:15:48,106 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:15:48,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked.
[2023-12-23 12:15:48,994 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:15:48,994 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:15:48,994 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612313024]
[2023-12-23 12:15:48,995 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [612313024] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:15:48,995 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:15:48,995 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 12:15:48,995 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757674531]
[2023-12-23 12:15:48,995 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:15:48,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 12:15:48,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:15:48,997 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 12:15:48,997 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 12:15:48,998 INFO  L87              Difference]: Start difference. First operand 116 states and 186 transitions. Second operand  has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 12:15:50,961 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:15:50,961 INFO  L93              Difference]: Finished difference Result 347 states and 557 transitions.
[2023-12-23 12:15:50,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 12:15:50,989 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 297
[2023-12-23 12:15:50,990 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:15:50,992 INFO  L225             Difference]: With dead ends: 347
[2023-12-23 12:15:50,992 INFO  L226             Difference]: Without dead ends: 232
[2023-12-23 12:15:50,993 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 294 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 12:15:50,994 INFO  L413           NwaCegarLoop]: 180 mSDtfsCounter, 101 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-23 12:15:50,995 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 538 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-23 12:15:50,995 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 232 states.
[2023-12-23 12:15:51,045 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 206.
[2023-12-23 12:15:51,046 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 206 states, 103 states have (on average 1.2427184466019416) internal successors, (128), 103 states have internal predecessors, (128), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100)
[2023-12-23 12:15:51,048 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 328 transitions.
[2023-12-23 12:15:51,048 INFO  L78                 Accepts]: Start accepts. Automaton has 206 states and 328 transitions. Word has length 297
[2023-12-23 12:15:51,049 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:15:51,049 INFO  L495      AbstractCegarLoop]: Abstraction has 206 states and 328 transitions.
[2023-12-23 12:15:51,049 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 12:15:51,049 INFO  L276                IsEmpty]: Start isEmpty. Operand 206 states and 328 transitions.
[2023-12-23 12:15:51,054 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 300
[2023-12-23 12:15:51,054 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:15:51,055 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:15:51,089 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 12:15:51,278 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 12:15:51,279 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:15:51,280 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:15:51,280 INFO  L85        PathProgramCache]: Analyzing trace with hash 247074928, now seen corresponding path program 1 times
[2023-12-23 12:15:51,280 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:15:51,281 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186046404]
[2023-12-23 12:15:51,281 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:15:51,281 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 12:15:51,281 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:15:51,282 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 12:15:51,283 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 12:15:51,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:15:51,720 INFO  L262         TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 12:15:51,725 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:15:52,465 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked.
[2023-12-23 12:15:52,465 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:15:52,466 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:15:52,466 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186046404]
[2023-12-23 12:15:52,466 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186046404] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:15:52,466 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:15:52,466 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 12:15:52,466 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154010161]
[2023-12-23 12:15:52,466 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:15:52,467 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 12:15:52,467 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:15:52,467 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 12:15:52,468 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 12:15:52,468 INFO  L87              Difference]: Start difference. First operand 206 states and 328 transitions. Second operand  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 12:15:53,461 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:15:53,461 INFO  L93              Difference]: Finished difference Result 440 states and 703 transitions.
[2023-12-23 12:15:53,462 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 12:15:53,462 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 299
[2023-12-23 12:15:53,463 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:15:53,465 INFO  L225             Difference]: With dead ends: 440
[2023-12-23 12:15:53,465 INFO  L226             Difference]: Without dead ends: 325
[2023-12-23 12:15:53,466 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 12:15:53,467 INFO  L413           NwaCegarLoop]: 181 mSDtfsCounter, 39 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2023-12-23 12:15:53,467 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 359 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2023-12-23 12:15:53,468 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 325 states.
[2023-12-23 12:15:53,497 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323.
[2023-12-23 12:15:53,498 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 323 states, 169 states have (on average 1.2781065088757397) internal successors, (216), 169 states have internal predecessors, (216), 150 states have call successors, (150), 3 states have call predecessors, (150), 3 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150)
[2023-12-23 12:15:53,500 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 516 transitions.
[2023-12-23 12:15:53,500 INFO  L78                 Accepts]: Start accepts. Automaton has 323 states and 516 transitions. Word has length 299
[2023-12-23 12:15:53,500 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:15:53,501 INFO  L495      AbstractCegarLoop]: Abstraction has 323 states and 516 transitions.
[2023-12-23 12:15:53,501 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 12:15:53,501 INFO  L276                IsEmpty]: Start isEmpty. Operand 323 states and 516 transitions.
[2023-12-23 12:15:53,503 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 300
[2023-12-23 12:15:53,503 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:15:53,503 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:15:53,519 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 12:15:53,716 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 12:15:53,717 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:15:53,718 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:15:53,718 INFO  L85        PathProgramCache]: Analyzing trace with hash 1056421554, now seen corresponding path program 1 times
[2023-12-23 12:15:53,718 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:15:53,719 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373745974]
[2023-12-23 12:15:53,719 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:15:53,719 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 12:15:53,719 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:15:53,720 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 12:15:53,722 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 12:15:54,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:15:54,144 INFO  L262         TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 25 conjunts are in the unsatisfiable core
[2023-12-23 12:15:54,152 INFO  L285         TraceCheckSpWp]: Computing forward predicates...