/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-22.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 23:53:26,159 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 23:53:26,226 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 23:53:26,230 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 23:53:26,230 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 23:53:26,253 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 23:53:26,253 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 23:53:26,253 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 23:53:26,254 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 23:53:26,257 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 23:53:26,257 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 23:53:26,257 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 23:53:26,258 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 23:53:26,259 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 23:53:26,259 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 23:53:26,259 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 23:53:26,259 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 23:53:26,260 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 23:53:26,260 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 23:53:26,260 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 23:53:26,260 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 23:53:26,260 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 23:53:26,261 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 23:53:26,261 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 23:53:26,261 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 23:53:26,261 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 23:53:26,261 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 23:53:26,261 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 23:53:26,261 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 23:53:26,262 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 23:53:26,262 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 23:53:26,262 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 23:53:26,263 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 23:53:26,263 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 23:53:26,263 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 23:53:26,263 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 23:53:26,263 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 23:53:26,263 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 23:53:26,263 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 23:53:26,263 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 23:53:26,263 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 23:53:26,264 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 23:53:26,264 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 23:53:26,264 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 23:53:26,264 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 23:53:26,264 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 23:53:26,264 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 23:53:26,424 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 23:53:26,437 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 23:53:26,439 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 23:53:26,440 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 23:53:26,440 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 23:53:26,441 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-22.i
[2023-12-22 23:53:27,435 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 23:53:27,635 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 23:53:27,635 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-22.i
[2023-12-22 23:53:27,642 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/427ee3efe/56a9552e07434be49a28816be98cc205/FLAGc1c2b9987
[2023-12-22 23:53:27,670 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/427ee3efe/56a9552e07434be49a28816be98cc205
[2023-12-22 23:53:27,672 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 23:53:27,673 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 23:53:27,674 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 23:53:27,674 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 23:53:27,677 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 23:53:27,678 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:53:27" (1/1) ...
[2023-12-22 23:53:27,678 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c144f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:27, skipping insertion in model container
[2023-12-22 23:53:27,678 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:53:27" (1/1) ...
[2023-12-22 23:53:27,717 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 23:53:27,855 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-22.i[916,929]
[2023-12-22 23:53:27,948 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 23:53:27,966 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 23:53:27,983 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-22.i[916,929]
[2023-12-22 23:53:28,033 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 23:53:28,068 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 23:53:28,069 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28 WrapperNode
[2023-12-22 23:53:28,069 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 23:53:28,070 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 23:53:28,070 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 23:53:28,070 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 23:53:28,074 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,101 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,128 INFO  L138                Inliner]: procedures = 27, calls = 79, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 326
[2023-12-22 23:53:28,128 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 23:53:28,129 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 23:53:28,129 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 23:53:28,129 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 23:53:28,153 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,153 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,159 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,171 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-22 23:53:28,171 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,171 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,190 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,202 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,218 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,220 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,224 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 23:53:28,225 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 23:53:28,225 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 23:53:28,225 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 23:53:28,225 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (1/1) ...
[2023-12-22 23:53:28,242 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 23:53:28,252 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 23:53:28,262 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-22 23:53:28,267 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-22 23:53:28,285 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 23:53:28,286 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 23:53:28,286 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 23:53:28,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 23:53:28,286 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 23:53:28,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 23:53:28,382 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 23:53:28,384 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 23:53:40,649 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 23:53:40,709 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 23:53:40,709 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 23:53:40,709 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:53:40 BoogieIcfgContainer
[2023-12-22 23:53:40,710 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 23:53:40,711 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 23:53:40,711 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 23:53:40,713 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 23:53:40,713 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:53:27" (1/3) ...
[2023-12-22 23:53:40,714 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79fbd1d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:53:40, skipping insertion in model container
[2023-12-22 23:53:40,714 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:53:28" (2/3) ...
[2023-12-22 23:53:40,714 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79fbd1d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:53:40, skipping insertion in model container
[2023-12-22 23:53:40,714 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:53:40" (3/3) ...
[2023-12-22 23:53:40,715 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-22.i
[2023-12-22 23:53:40,730 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 23:53:40,731 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 23:53:40,765 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 23:53:40,770 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;@5da4f5ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 23:53:40,770 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 23:53:40,774 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 142 states, 73 states have (on average 1.36986301369863) internal successors, (100), 74 states have internal predecessors, (100), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2023-12-22 23:53:40,800 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 394
[2023-12-22 23:53:40,801 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:53:40,802 INFO  L195           NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:53:40,803 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:53:40,806 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:53:40,807 INFO  L85        PathProgramCache]: Analyzing trace with hash -1814857534, now seen corresponding path program 1 times
[2023-12-22 23:53:40,821 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:53:40,821 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924259981]
[2023-12-22 23:53:40,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:53:40,822 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 23:53:40,823 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:53:40,824 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 23:53:40,825 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-22 23:53:41,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:53:41,834 INFO  L262         TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 23:53:41,845 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:53:41,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 2146 proven. 0 refuted. 0 times theorem prover too weak. 6434 trivial. 0 not checked.
[2023-12-22 23:53:41,913 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:53:41,914 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:53:41,914 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924259981]
[2023-12-22 23:53:41,914 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [924259981] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:53:41,915 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 23:53:41,915 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 23:53:41,916 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480902582]
[2023-12-22 23:53:41,916 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:53:41,920 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 23:53:41,920 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:53:41,942 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 23:53:41,943 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 23:53:41,946 INFO  L87              Difference]: Start difference. First operand  has 142 states, 73 states have (on average 1.36986301369863) internal successors, (100), 74 states have internal predecessors, (100), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand  has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2023-12-22 23:53:46,662 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:53:46,663 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:53:46,663 INFO  L93              Difference]: Finished difference Result 281 states and 528 transitions.
[2023-12-22 23:53:46,904 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 23:53:46,906 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 393
[2023-12-22 23:53:46,906 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:53:46,913 INFO  L225             Difference]: With dead ends: 281
[2023-12-22 23:53:46,913 INFO  L226             Difference]: Without dead ends: 140
[2023-12-22 23:53:46,917 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 23:53:46,919 INFO  L413           NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2023-12-22 23:53:46,920 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time]
[2023-12-22 23:53:46,931 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2023-12-22 23:53:46,970 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140.
[2023-12-22 23:53:46,972 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 140 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 72 states have internal predecessors, (93), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2023-12-22 23:53:46,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 225 transitions.
[2023-12-22 23:53:46,974 INFO  L78                 Accepts]: Start accepts. Automaton has 140 states and 225 transitions. Word has length 393
[2023-12-22 23:53:46,975 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:53:46,975 INFO  L495      AbstractCegarLoop]: Abstraction has 140 states and 225 transitions.
[2023-12-22 23:53:46,975 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2023-12-22 23:53:46,975 INFO  L276                IsEmpty]: Start isEmpty. Operand 140 states and 225 transitions.
[2023-12-22 23:53:46,989 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 394
[2023-12-22 23:53:46,989 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:53:46,990 INFO  L195           NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:53:47,031 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
[2023-12-22 23:53:47,210 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 23:53:47,210 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:53:47,211 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:53:47,211 INFO  L85        PathProgramCache]: Analyzing trace with hash -1025869436, now seen corresponding path program 1 times
[2023-12-22 23:53:47,214 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:53:47,215 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233535295]
[2023-12-22 23:53:47,215 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:53:47,215 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 23:53:47,215 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:53:47,217 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 23:53:47,223 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-22 23:53:48,167 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:53:48,207 INFO  L262         TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 23:53:48,217 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:53:53,593 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked.
[2023-12-22 23:53:53,593 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:53:53,593 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:53:53,594 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233535295]
[2023-12-22 23:53:53,594 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233535295] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:53:53,594 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 23:53:53,594 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 23:53:53,594 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055058600]
[2023-12-22 23:53:53,594 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:53:53,596 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 23:53:53,596 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:53:53,596 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 23:53:53,597 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-22 23:53:53,597 INFO  L87              Difference]: Start difference. First operand 140 states and 225 transitions. Second operand  has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66)
[2023-12-22 23:53:58,619 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:53:58,623 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:53:58,623 INFO  L93              Difference]: Finished difference Result 279 states and 449 transitions.
[2023-12-22 23:53:58,864 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 23:53:58,865 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 393
[2023-12-22 23:53:58,866 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:53:58,867 INFO  L225             Difference]: With dead ends: 279
[2023-12-22 23:53:58,868 INFO  L226             Difference]: Without dead ends: 140
[2023-12-22 23:53:58,868 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-22 23:53:58,869 INFO  L413           NwaCegarLoop]: 219 mSDtfsCounter, 130 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 134 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2023-12-22 23:53:58,870 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 219 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time]
[2023-12-22 23:53:58,870 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2023-12-22 23:53:58,905 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140.
[2023-12-22 23:53:58,906 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 140 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2023-12-22 23:53:58,907 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 224 transitions.
[2023-12-22 23:53:58,930 INFO  L78                 Accepts]: Start accepts. Automaton has 140 states and 224 transitions. Word has length 393
[2023-12-22 23:53:58,932 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:53:58,932 INFO  L495      AbstractCegarLoop]: Abstraction has 140 states and 224 transitions.
[2023-12-22 23:53:58,933 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66)
[2023-12-22 23:53:58,933 INFO  L276                IsEmpty]: Start isEmpty. Operand 140 states and 224 transitions.
[2023-12-22 23:53:58,935 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 394
[2023-12-22 23:53:58,935 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:53:58,935 INFO  L195           NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:53:58,958 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-22 23:53:59,155 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 23:53:59,156 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:53:59,157 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:53:59,157 INFO  L85        PathProgramCache]: Analyzing trace with hash -2036986686, now seen corresponding path program 1 times
[2023-12-22 23:53:59,157 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:53:59,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571079608]
[2023-12-22 23:53:59,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:53:59,158 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 23:53:59,158 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:53:59,159 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 23:53:59,166 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-22 23:54:00,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:54:00,155 INFO  L262         TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-22 23:54:00,162 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:54:16,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 1112 proven. 360 refuted. 0 times theorem prover too weak. 7108 trivial. 0 not checked.
[2023-12-22 23:54:16,333 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 23:54:19,220 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:54:19,220 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571079608]
[2023-12-22 23:54:19,220 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571079608] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-22 23:54:19,220 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [120726683]
[2023-12-22 23:54:19,221 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:54:19,221 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-22 23:54:19,221 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-22 23:54:19,258 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-22 23:54:19,261 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-22 23:54:21,378 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:54:21,403 INFO  L262         TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-22 23:54:21,409 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:54:31,920 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 1049 proven. 183 refuted. 0 times theorem prover too weak. 7348 trivial. 0 not checked.
[2023-12-22 23:54:31,921 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 23:54:33,836 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [120726683] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-22 23:54:33,836 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 23:54:33,836 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 11
[2023-12-22 23:54:33,836 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427205961]
[2023-12-22 23:54:33,836 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 23:54:33,837 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-22 23:54:33,838 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:54:33,839 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-22 23:54:33,840 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342
[2023-12-22 23:54:33,840 INFO  L87              Difference]: Start difference. First operand 140 states and 224 transitions. Second operand  has 12 states, 12 states have (on average 10.833333333333334) internal successors, (130), 11 states have internal predecessors, (130), 3 states have call successors, (126), 3 states have call predecessors, (126), 5 states have return successors, (127), 3 states have call predecessors, (127), 3 states have call successors, (127)
[2023-12-22 23:54:45,223 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:54:49,231 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:54:53,244 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:54:57,254 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:01,269 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:05,278 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:10,141 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:14,148 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:18,155 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:22,170 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:26,194 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:30,213 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:34,222 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:38,249 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:43,174 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:47,191 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:51,196 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:55,204 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:55:59,219 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:56:03,245 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:56:07,261 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:56:11,270 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:56:15,290 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:56:19,300 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:56:23,303 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:56:23,304 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:56:23,304 INFO  L93              Difference]: Finished difference Result 429 states and 679 transitions.
[2023-12-22 23:56:23,544 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-22 23:56:23,545 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 10.833333333333334) internal successors, (130), 11 states have internal predecessors, (130), 3 states have call successors, (126), 3 states have call predecessors, (126), 5 states have return successors, (127), 3 states have call predecessors, (127), 3 states have call successors, (127) Word has length 393
[2023-12-22 23:56:23,546 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:56:23,548 INFO  L225             Difference]: With dead ends: 429
[2023-12-22 23:56:23,548 INFO  L226             Difference]: Without dead ends: 290
[2023-12-22 23:56:23,549 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1526 GetRequests, 1497 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=288, Invalid=642, Unknown=0, NotChecked=0, Total=930
[2023-12-22 23:56:23,550 INFO  L413           NwaCegarLoop]: 149 mSDtfsCounter, 204 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 168 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.1s IncrementalHoareTripleChecker+Time
[2023-12-22 23:56:23,550 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 983 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 749 Invalid, 25 Unknown, 0 Unchecked, 108.1s Time]
[2023-12-22 23:56:23,551 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 290 states.
[2023-12-22 23:56:23,609 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 278.
[2023-12-22 23:56:23,612 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 278 states, 141 states have (on average 1.2553191489361701) internal successors, (177), 141 states have internal predecessors, (177), 132 states have call successors, (132), 4 states have call predecessors, (132), 4 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132)
[2023-12-22 23:56:23,614 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 441 transitions.
[2023-12-22 23:56:23,614 INFO  L78                 Accepts]: Start accepts. Automaton has 278 states and 441 transitions. Word has length 393
[2023-12-22 23:56:23,615 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:56:23,616 INFO  L495      AbstractCegarLoop]: Abstraction has 278 states and 441 transitions.
[2023-12-22 23:56:23,616 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 10.833333333333334) internal successors, (130), 11 states have internal predecessors, (130), 3 states have call successors, (126), 3 states have call predecessors, (126), 5 states have return successors, (127), 3 states have call predecessors, (127), 3 states have call successors, (127)
[2023-12-22 23:56:23,616 INFO  L276                IsEmpty]: Start isEmpty. Operand 278 states and 441 transitions.
[2023-12-22 23:56:23,620 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 394
[2023-12-22 23:56:23,621 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:56:23,622 INFO  L195           NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:56:23,656 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-22 23:56:23,861 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2023-12-22 23:56:24,052 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-22 23:56:24,052 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:56:24,053 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:56:24,053 INFO  L85        PathProgramCache]: Analyzing trace with hash 1448633984, now seen corresponding path program 1 times
[2023-12-22 23:56:24,053 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:56:24,054 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406765242]
[2023-12-22 23:56:24,054 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:56:24,054 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 23:56:24,054 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:56:24,055 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 23:56:24,056 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-22 23:56:26,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:56:26,169 INFO  L262         TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 43 conjunts are in the unsatisfiable core
[2023-12-22 23:56:26,194 INFO  L285         TraceCheckSpWp]: Computing forward predicates...