/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-ps-cn_file-92.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 15:54:07,028 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 15:54:07,066 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 15:54:07,073 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 15:54:07,073 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 15:54:07,092 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 15:54:07,093 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 15:54:07,093 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 15:54:07,094 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 15:54:07,097 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 15:54:07,097 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 15:54:07,097 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 15:54:07,097 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 15:54:07,098 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 15:54:07,099 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 15:54:07,099 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 15:54:07,099 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 15:54:07,099 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 15:54:07,101 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 15:54:07,101 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 15:54:07,101 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 15:54:07,101 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 15:54:07,101 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 15:54:07,101 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 15:54:07,102 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 15:54:07,102 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 15:54:07,102 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 15:54:07,102 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 15:54:07,102 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 15:54:07,103 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 15:54:07,103 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 15:54:07,103 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 15:54:07,103 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 15:54:07,104 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 15:54:07,104 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 15:54:07,104 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 15:54:07,104 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 15:54:07,105 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 15:54:07,105 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 15:54:07,105 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 15:54:07,105 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 15:54:07,105 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 15:54:07,105 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 15:54:07,105 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 15:54:07,105 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 15:54:07,106 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 15:54:07,106 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 15:54:07,293 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 15:54:07,307 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 15:54:07,309 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 15:54:07,309 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 15:54:07,310 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 15:54:07,311 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-92.i
[2023-12-23 15:54:08,342 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 15:54:08,496 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 15:54:08,497 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-92.i
[2023-12-23 15:54:08,510 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e810146/b282b1de92f040ceb1c79e0b141c32fc/FLAG4246e99df
[2023-12-23 15:54:08,525 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e810146/b282b1de92f040ceb1c79e0b141c32fc
[2023-12-23 15:54:08,527 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 15:54:08,528 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 15:54:08,529 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 15:54:08,529 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 15:54:08,532 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 15:54:08,532 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,533 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c42bdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08, skipping insertion in model container
[2023-12-23 15:54:08,533 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,555 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 15:54:08,650 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-ps-cn_file-92.i[919,932]
[2023-12-23 15:54:08,693 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 15:54:08,705 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 15:54:08,713 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-ps-cn_file-92.i[919,932]
[2023-12-23 15:54:08,738 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 15:54:08,757 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 15:54:08,758 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08 WrapperNode
[2023-12-23 15:54:08,758 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 15:54:08,759 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 15:54:08,759 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 15:54:08,759 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 15:54:08,763 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,786 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,810 INFO  L138                Inliner]: procedures = 27, calls = 54, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 233
[2023-12-23 15:54:08,811 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 15:54:08,811 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 15:54:08,811 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 15:54:08,811 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 15:54:08,825 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,825 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,829 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,838 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 15:54:08,838 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,838 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,845 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,847 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,849 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,850 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,853 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 15:54:08,854 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 15:54:08,854 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 15:54:08,854 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 15:54:08,854 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (1/1) ...
[2023-12-23 15:54:08,858 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 15:54:08,867 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 15:54:08,877 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 15:54:08,908 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 15:54:08,916 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 15:54:08,916 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 15:54:08,916 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 15:54:08,917 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 15:54:08,917 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 15:54:08,918 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 15:54:09,012 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 15:54:09,017 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 15:54:09,336 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 15:54:09,370 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 15:54:09,371 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 15:54:09,371 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:54:09 BoogieIcfgContainer
[2023-12-23 15:54:09,371 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 15:54:09,373 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 15:54:09,373 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 15:54:09,375 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 15:54:09,375 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:54:08" (1/3) ...
[2023-12-23 15:54:09,375 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c559e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:54:09, skipping insertion in model container
[2023-12-23 15:54:09,375 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:08" (2/3) ...
[2023-12-23 15:54:09,375 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c559e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:54:09, skipping insertion in model container
[2023-12-23 15:54:09,376 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:54:09" (3/3) ...
[2023-12-23 15:54:09,376 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-92.i
[2023-12-23 15:54:09,390 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 15:54:09,390 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 15:54:09,428 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 15:54:09,433 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;@4364b7f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 15:54:09,433 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 15:54:09,437 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 99 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 56 states have internal predecessors, (79), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41)
[2023-12-23 15:54:09,461 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 248
[2023-12-23 15:54:09,462 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:54:09,462 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:54:09,463 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:54:09,484 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:54:09,484 INFO  L85        PathProgramCache]: Analyzing trace with hash -502791646, now seen corresponding path program 1 times
[2023-12-23 15:54:09,493 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:54:09,493 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070551709]
[2023-12-23 15:54:09,493 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:54:09,494 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 15:54:09,494 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:54:09,496 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 15:54:09,515 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 15:54:09,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:54:09,739 INFO  L262         TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 15:54:09,748 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:54:09,788 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 1424 proven. 0 refuted. 0 times theorem prover too weak. 1856 trivial. 0 not checked.
[2023-12-23 15:54:09,788 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:54:09,789 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:54:09,789 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070551709]
[2023-12-23 15:54:09,789 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070551709] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:54:09,789 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:54:09,789 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 15:54:09,791 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951192047]
[2023-12-23 15:54:09,791 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:54:09,800 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 15:54:09,800 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:54:09,827 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 15:54:09,827 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 15:54:09,829 INFO  L87              Difference]: Start difference. First operand  has 99 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 56 states have internal predecessors, (79), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41)
[2023-12-23 15:54:09,879 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:54:09,879 INFO  L93              Difference]: Finished difference Result 195 states and 361 transitions.
[2023-12-23 15:54:09,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 15:54:09,882 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 247
[2023-12-23 15:54:09,882 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:54:09,887 INFO  L225             Difference]: With dead ends: 195
[2023-12-23 15:54:09,887 INFO  L226             Difference]: Without dead ends: 97
[2023-12-23 15:54:09,892 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 246 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 15:54:09,895 INFO  L413           NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 15:54:09,895 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 15:54:09,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2023-12-23 15:54:09,924 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97.
[2023-12-23 15:54:09,925 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97 states, 54 states have (on average 1.3703703703703705) internal successors, (74), 54 states have internal predecessors, (74), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41)
[2023-12-23 15:54:09,926 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 156 transitions.
[2023-12-23 15:54:09,926 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 156 transitions. Word has length 247
[2023-12-23 15:54:09,927 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:54:09,927 INFO  L495      AbstractCegarLoop]: Abstraction has 97 states and 156 transitions.
[2023-12-23 15:54:09,927 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41)
[2023-12-23 15:54:09,927 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 156 transitions.
[2023-12-23 15:54:09,930 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 248
[2023-12-23 15:54:09,930 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:54:09,930 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:54:09,939 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-23 15:54:10,137 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 15:54:10,138 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:54:10,138 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:54:10,138 INFO  L85        PathProgramCache]: Analyzing trace with hash -964543196, now seen corresponding path program 1 times
[2023-12-23 15:54:10,139 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:54:10,139 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199675320]
[2023-12-23 15:54:10,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:54:10,139 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 15:54:10,140 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:54:10,141 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 15:54:10,142 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 15:54:10,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:54:10,376 INFO  L262         TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-23 15:54:10,382 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:54:14,701 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 1374 proven. 33 refuted. 0 times theorem prover too weak. 1873 trivial. 0 not checked.
[2023-12-23 15:54:14,701 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 15:54:14,866 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked.
[2023-12-23 15:54:14,866 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:54:14,867 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199675320]
[2023-12-23 15:54:14,867 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199675320] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-23 15:54:14,867 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-23 15:54:14,867 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-23 15:54:14,867 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235828020]
[2023-12-23 15:54:14,867 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:54:14,868 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 15:54:14,869 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:54:14,869 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 15:54:14,869 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90
[2023-12-23 15:54:14,870 INFO  L87              Difference]: Start difference. First operand 97 states and 156 transitions. Second operand  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-23 15:54:16,115 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:54:16,115 INFO  L93              Difference]: Finished difference Result 337 states and 540 transitions.
[2023-12-23 15:54:16,115 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 15:54:16,116 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 247
[2023-12-23 15:54:16,117 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:54:16,119 INFO  L225             Difference]: With dead ends: 337
[2023-12-23 15:54:16,119 INFO  L226             Difference]: Without dead ends: 241
[2023-12-23 15:54:16,119 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90
[2023-12-23 15:54:16,120 INFO  L413           NwaCegarLoop]: 150 mSDtfsCounter, 276 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2023-12-23 15:54:16,120 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 332 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2023-12-23 15:54:16,121 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 241 states.
[2023-12-23 15:54:16,139 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 172.
[2023-12-23 15:54:16,140 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 172 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 69 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69)
[2023-12-23 15:54:16,141 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 279 transitions.
[2023-12-23 15:54:16,141 INFO  L78                 Accepts]: Start accepts. Automaton has 172 states and 279 transitions. Word has length 247
[2023-12-23 15:54:16,142 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:54:16,142 INFO  L495      AbstractCegarLoop]: Abstraction has 172 states and 279 transitions.
[2023-12-23 15:54:16,142 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-23 15:54:16,142 INFO  L276                IsEmpty]: Start isEmpty. Operand 172 states and 279 transitions.
[2023-12-23 15:54:16,144 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 248
[2023-12-23 15:54:16,144 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:54:16,145 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:54:16,152 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 15:54:16,352 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 15:54:16,354 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:54:16,355 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:54:16,355 INFO  L85        PathProgramCache]: Analyzing trace with hash -1551349210, now seen corresponding path program 1 times
[2023-12-23 15:54:16,355 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:54:16,356 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160319730]
[2023-12-23 15:54:16,356 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:54:16,356 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 15:54:16,356 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:54:16,358 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 15:54:16,361 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 15:54:16,598 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:54:16,612 INFO  L262         TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-23 15:54:16,616 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:54:16,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 1559 proven. 69 refuted. 0 times theorem prover too weak. 1652 trivial. 0 not checked.
[2023-12-23 15:54:16,997 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 15:54:17,162 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:54:17,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160319730]
[2023-12-23 15:54:17,163 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160319730] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 15:54:17,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1876400891]
[2023-12-23 15:54:17,163 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:54:17,163 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 15:54:17,163 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 15:54:17,198 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)
[2023-12-23 15:54:17,222 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-23 15:54:17,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:54:17,762 INFO  L262         TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 15:54:17,767 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:54:18,118 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked.
[2023-12-23 15:54:18,118 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:54:18,119 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1876400891] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:54:18,119 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-23 15:54:18,119 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 12
[2023-12-23 15:54:18,119 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764090240]
[2023-12-23 15:54:18,119 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:54:18,120 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 15:54:18,120 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:54:18,121 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 15:54:18,122 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240
[2023-12-23 15:54:18,123 INFO  L87              Difference]: Start difference. First operand 172 states and 279 transitions. Second operand  has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-23 15:54:19,648 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 15:54:19,676 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:54:19,677 INFO  L93              Difference]: Finished difference Result 528 states and 852 transitions.
[2023-12-23 15:54:19,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 15:54:19,678 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 247
[2023-12-23 15:54:19,679 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:54:19,682 INFO  L225             Difference]: With dead ends: 528
[2023-12-23 15:54:19,682 INFO  L226             Difference]: Without dead ends: 357
[2023-12-23 15:54:19,683 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272
[2023-12-23 15:54:19,683 INFO  L413           NwaCegarLoop]: 157 mSDtfsCounter, 108 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2023-12-23 15:54:19,684 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 457 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2023-12-23 15:54:19,684 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 357 states.
[2023-12-23 15:54:19,723 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 341.
[2023-12-23 15:54:19,724 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 341 states, 198 states have (on average 1.404040404040404) internal successors, (278), 200 states have internal predecessors, (278), 138 states have call successors, (138), 4 states have call predecessors, (138), 4 states have return successors, (138), 136 states have call predecessors, (138), 138 states have call successors, (138)
[2023-12-23 15:54:19,725 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 554 transitions.
[2023-12-23 15:54:19,726 INFO  L78                 Accepts]: Start accepts. Automaton has 341 states and 554 transitions. Word has length 247
[2023-12-23 15:54:19,726 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:54:19,726 INFO  L495      AbstractCegarLoop]: Abstraction has 341 states and 554 transitions.
[2023-12-23 15:54:19,727 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-23 15:54:19,727 INFO  L276                IsEmpty]: Start isEmpty. Operand 341 states and 554 transitions.
[2023-12-23 15:54:19,728 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 249
[2023-12-23 15:54:19,729 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:54:19,729 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:54:19,737 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 15:54:19,943 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2023-12-23 15:54:20,141 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
[2023-12-23 15:54:20,142 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:54:20,142 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:54:20,142 INFO  L85        PathProgramCache]: Analyzing trace with hash -889835491, now seen corresponding path program 1 times
[2023-12-23 15:54:20,143 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:54:20,143 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943699391]
[2023-12-23 15:54:20,143 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:54:20,143 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 15:54:20,143 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:54:20,144 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)
[2023-12-23 15:54:20,146 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
[2023-12-23 15:54:20,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:54:20,378 INFO  L262         TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-23 15:54:20,382 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:54:20,677 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 1559 proven. 69 refuted. 0 times theorem prover too weak. 1652 trivial. 0 not checked.
[2023-12-23 15:54:20,677 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 15:54:20,843 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:54:20,843 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943699391]
[2023-12-23 15:54:20,843 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [943699391] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 15:54:20,843 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1665361472]
[2023-12-23 15:54:20,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:54:20,844 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 15:54:20,844 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 15:54:20,845 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 15:54:20,845 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process
[2023-12-23 15:54:22,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:54:22,415 INFO  L262         TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 33 conjunts are in the unsatisfiable core
[2023-12-23 15:54:22,422 INFO  L285         TraceCheckSpWp]: Computing forward predicates...