/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_operatoramount_amount100_file-61.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 05:30:53,152 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 05:30:53,217 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-24 05:30:53,221 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 05:30:53,221 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 05:30:53,235 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 05:30:53,235 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 05:30:53,235 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 05:30:53,236 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 05:30:53,238 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 05:30:53,238 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 05:30:53,238 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 05:30:53,239 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 05:30:53,239 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 05:30:53,239 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 05:30:53,239 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 05:30:53,240 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 05:30:53,240 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 05:30:53,240 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 05:30:53,240 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 05:30:53,240 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 05:30:53,243 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 05:30:53,243 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 05:30:53,244 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 05:30:53,244 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 05:30:53,244 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 05:30:53,245 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 05:30:53,245 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 05:30:53,245 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 05:30:53,245 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 05:30:53,245 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 05:30:53,246 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 05:30:53,246 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 05:30:53,246 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 05:30:53,246 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 05:30:53,246 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 05:30:53,247 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 05:30:53,247 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 05:30:53,247 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 05:30:53,247 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 05:30:53,247 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 05:30:53,250 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 05:30:53,250 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 05:30:53,250 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 05:30:53,250 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 05:30:53,250 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 05:30:53,250 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 05:30:53,447 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 05:30:53,467 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 05:30:53,468 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 05:30:53,469 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 05:30:53,469 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 05:30:53,470 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-61.i
[2023-12-24 05:30:54,548 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 05:30:54,705 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 05:30:54,706 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-61.i
[2023-12-24 05:30:54,716 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8e21eb9/4d1d5335cd874f6fa4e12192ad863a78/FLAGa43cd66a1
[2023-12-24 05:30:54,729 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8e21eb9/4d1d5335cd874f6fa4e12192ad863a78
[2023-12-24 05:30:54,731 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 05:30:54,732 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 05:30:54,734 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 05:30:54,734 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 05:30:54,738 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 05:30:54,738 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:54,739 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1352349c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54, skipping insertion in model container
[2023-12-24 05:30:54,739 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:54,764 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 05:30:54,854 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_operatoramount_amount100_file-61.i[916,929]
[2023-12-24 05:30:54,909 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 05:30:54,923 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 05:30:54,931 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_operatoramount_amount100_file-61.i[916,929]
[2023-12-24 05:30:54,957 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 05:30:54,969 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 05:30:54,969 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54 WrapperNode
[2023-12-24 05:30:54,969 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 05:30:54,970 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 05:30:54,970 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 05:30:54,970 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 05:30:54,975 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:54,985 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,012 INFO  L138                Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 192
[2023-12-24 05:30:55,012 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 05:30:55,013 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 05:30:55,013 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 05:30:55,013 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 05:30:55,022 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,022 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,026 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,041 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].
[2023-12-24 05:30:55,041 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,041 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,051 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,074 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,077 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,078 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,083 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 05:30:55,084 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 05:30:55,084 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 05:30:55,084 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 05:30:55,085 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (1/1) ...
[2023-12-24 05:30:55,089 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 05:30:55,099 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 05:30:55,121 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)
[2023-12-24 05:30:55,160 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
[2023-12-24 05:30:55,168 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 05:30:55,168 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 05:30:55,169 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 05:30:55,170 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 05:30:55,170 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 05:30:55,170 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 05:30:55,260 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 05:30:55,262 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 05:30:55,711 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 05:30:55,758 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 05:30:55,759 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 05:30:55,759 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 05:30:55 BoogieIcfgContainer
[2023-12-24 05:30:55,759 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 05:30:55,761 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 05:30:55,761 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 05:30:55,763 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 05:30:55,763 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 05:30:54" (1/3) ...
[2023-12-24 05:30:55,763 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259430a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 05:30:55, skipping insertion in model container
[2023-12-24 05:30:55,764 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:30:54" (2/3) ...
[2023-12-24 05:30:55,766 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259430a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 05:30:55, skipping insertion in model container
[2023-12-24 05:30:55,766 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 05:30:55" (3/3) ...
[2023-12-24 05:30:55,767 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-61.i
[2023-12-24 05:30:55,781 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 05:30:55,782 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 05:30:55,815 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 05:30:55,822 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;@23092d6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 05:30:55,822 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 05:30:55,830 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 79 states, 50 states have (on average 1.52) internal successors, (76), 51 states have internal predecessors, (76), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-24 05:30:55,845 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 165
[2023-12-24 05:30:55,845 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 05:30:55,846 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 05:30:55,846 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 05:30:55,850 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 05:30:55,850 INFO  L85        PathProgramCache]: Analyzing trace with hash -1052114038, now seen corresponding path program 1 times
[2023-12-24 05:30:55,862 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 05:30:55,862 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152941238]
[2023-12-24 05:30:55,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 05:30:55,863 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
[2023-12-24 05:30:55,863 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 05:30:55,865 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)
[2023-12-24 05:30:55,898 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
[2023-12-24 05:30:56,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 05:30:56,154 INFO  L262         TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 05:30:56,162 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 05:30:56,453 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 435 proven. 60 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked.
[2023-12-24 05:30:56,453 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 05:30:56,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 15 proven. 60 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked.
[2023-12-24 05:30:56,641 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 05:30:56,642 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152941238]
[2023-12-24 05:30:56,642 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152941238] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 05:30:56,642 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 05:30:56,642 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-24 05:30:56,644 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475442998]
[2023-12-24 05:30:56,644 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 05:30:56,649 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-24 05:30:56,649 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 05:30:56,671 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-24 05:30:56,671 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-24 05:30:56,673 INFO  L87              Difference]: Start difference. First operand  has 79 states, 50 states have (on average 1.52) internal successors, (76), 51 states have internal predecessors, (76), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47)
[2023-12-24 05:30:57,563 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 05:30:57,563 INFO  L93              Difference]: Finished difference Result 245 states and 448 transitions.
[2023-12-24 05:30:57,565 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2023-12-24 05:30:57,566 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 164
[2023-12-24 05:30:57,566 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 05:30:57,572 INFO  L225             Difference]: With dead ends: 245
[2023-12-24 05:30:57,572 INFO  L226             Difference]: Without dead ends: 167
[2023-12-24 05:30:57,575 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 320 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2023-12-24 05:30:57,579 INFO  L413           NwaCegarLoop]: 89 mSDtfsCounter, 229 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-24 05:30:57,580 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 288 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-24 05:30:57,591 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 167 states.
[2023-12-24 05:30:57,614 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 86.
[2023-12-24 05:30:57,615 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 86 states, 57 states have (on average 1.368421052631579) internal successors, (78), 57 states have internal predecessors, (78), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-24 05:30:57,616 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 130 transitions.
[2023-12-24 05:30:57,617 INFO  L78                 Accepts]: Start accepts. Automaton has 86 states and 130 transitions. Word has length 164
[2023-12-24 05:30:57,618 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 05:30:57,618 INFO  L495      AbstractCegarLoop]: Abstraction has 86 states and 130 transitions.
[2023-12-24 05:30:57,618 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47)
[2023-12-24 05:30:57,618 INFO  L276                IsEmpty]: Start isEmpty. Operand 86 states and 130 transitions.
[2023-12-24 05:30:57,620 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 166
[2023-12-24 05:30:57,620 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 05:30:57,621 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 05:30:57,632 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
[2023-12-24 05:30:57,832 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
[2023-12-24 05:30:57,833 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 05:30:57,833 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 05:30:57,833 INFO  L85        PathProgramCache]: Analyzing trace with hash 1078379113, now seen corresponding path program 1 times
[2023-12-24 05:30:57,834 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 05:30:57,834 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745364256]
[2023-12-24 05:30:57,834 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 05:30:57,834 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
[2023-12-24 05:30:57,834 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 05:30:57,835 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)
[2023-12-24 05:30:57,837 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
[2023-12-24 05:30:58,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 05:30:58,048 INFO  L262         TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-24 05:30:58,053 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 05:30:58,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 584 proven. 105 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked.
[2023-12-24 05:30:58,938 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 05:30:59,091 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 05:30:59,091 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745364256]
[2023-12-24 05:30:59,091 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [745364256] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 05:30:59,092 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [393462300]
[2023-12-24 05:30:59,092 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 05:30:59,092 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-24 05:30:59,092 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-24 05:30:59,149 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-24 05:30:59,171 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2023-12-24 05:31:00,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 05:31:00,373 INFO  L262         TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-12-24 05:31:00,377 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 05:31:01,647 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 333 proven. 9 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked.
[2023-12-24 05:31:01,648 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 05:31:04,722 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [393462300] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 05:31:04,723 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 05:31:04,723 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16
[2023-12-24 05:31:04,723 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005848610]
[2023-12-24 05:31:04,724 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 05:31:04,724 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-24 05:31:04,724 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 05:31:04,725 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-24 05:31:04,725 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420
[2023-12-24 05:31:04,726 INFO  L87              Difference]: Start difference. First operand 86 states and 130 transitions. Second operand  has 17 states, 17 states have (on average 5.0) internal successors, (85), 16 states have internal predecessors, (85), 5 states have call successors, (52), 5 states have call predecessors, (52), 8 states have return successors, (52), 5 states have call predecessors, (52), 5 states have call successors, (52)
[2023-12-24 05:31:09,407 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 05:31:09,408 INFO  L93              Difference]: Finished difference Result 466 states and 685 transitions.
[2023-12-24 05:31:09,426 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2023-12-24 05:31:09,426 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 5.0) internal successors, (85), 16 states have internal predecessors, (85), 5 states have call successors, (52), 5 states have call predecessors, (52), 8 states have return successors, (52), 5 states have call predecessors, (52), 5 states have call successors, (52) Word has length 165
[2023-12-24 05:31:09,427 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 05:31:09,431 INFO  L225             Difference]: With dead ends: 466
[2023-12-24 05:31:09,432 INFO  L226             Difference]: Without dead ends: 381
[2023-12-24 05:31:09,433 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=543, Invalid=1907, Unknown=0, NotChecked=0, Total=2450
[2023-12-24 05:31:09,434 INFO  L413           NwaCegarLoop]: 112 mSDtfsCounter, 468 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2023-12-24 05:31:09,434 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1189 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2023-12-24 05:31:09,435 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 381 states.
[2023-12-24 05:31:09,464 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 251.
[2023-12-24 05:31:09,464 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 251 states, 161 states have (on average 1.2919254658385093) internal successors, (208), 161 states have internal predecessors, (208), 78 states have call successors, (78), 11 states have call predecessors, (78), 11 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78)
[2023-12-24 05:31:09,466 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 364 transitions.
[2023-12-24 05:31:09,466 INFO  L78                 Accepts]: Start accepts. Automaton has 251 states and 364 transitions. Word has length 165
[2023-12-24 05:31:09,466 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 05:31:09,466 INFO  L495      AbstractCegarLoop]: Abstraction has 251 states and 364 transitions.
[2023-12-24 05:31:09,467 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 5.0) internal successors, (85), 16 states have internal predecessors, (85), 5 states have call successors, (52), 5 states have call predecessors, (52), 8 states have return successors, (52), 5 states have call predecessors, (52), 5 states have call successors, (52)
[2023-12-24 05:31:09,467 INFO  L276                IsEmpty]: Start isEmpty. Operand 251 states and 364 transitions.
[2023-12-24 05:31:09,468 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 167
[2023-12-24 05:31:09,469 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 05:31:09,469 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 05:31:09,477 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2023-12-24 05:31:09,678 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
[2023-12-24 05:31:09,869 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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
[2023-12-24 05:31:09,870 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 05:31:09,870 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 05:31:09,870 INFO  L85        PathProgramCache]: Analyzing trace with hash 68622468, now seen corresponding path program 1 times
[2023-12-24 05:31:09,871 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 05:31:09,871 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667841513]
[2023-12-24 05:31:09,871 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 05:31:09,871 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
[2023-12-24 05:31:09,871 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 05:31:09,872 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 05:31:09,874 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-24 05:31:10,051 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 05:31:10,067 INFO  L262         TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 05:31:10,070 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 05:31:10,282 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2023-12-24 05:31:10,283 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 05:31:10,283 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 05:31:10,283 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667841513]
[2023-12-24 05:31:10,283 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667841513] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 05:31:10,283 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 05:31:10,283 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-24 05:31:10,283 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18478612]
[2023-12-24 05:31:10,283 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 05:31:10,284 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 05:31:10,284 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 05:31:10,284 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 05:31:10,284 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-24 05:31:10,285 INFO  L87              Difference]: Start difference. First operand 251 states and 364 transitions. Second operand  has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-24 05:31:10,822 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 05:31:10,822 INFO  L93              Difference]: Finished difference Result 390 states and 574 transitions.
[2023-12-24 05:31:10,841 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-24 05:31:10,841 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 166
[2023-12-24 05:31:10,842 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 05:31:10,843 INFO  L225             Difference]: With dead ends: 390
[2023-12-24 05:31:10,843 INFO  L226             Difference]: Without dead ends: 304
[2023-12-24 05:31:10,844 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-24 05:31:10,845 INFO  L413           NwaCegarLoop]: 116 mSDtfsCounter, 92 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-24 05:31:10,845 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 407 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-24 05:31:10,845 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 304 states.
[2023-12-24 05:31:10,896 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 252.
[2023-12-24 05:31:10,898 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 252 states, 162 states have (on average 1.2901234567901234) internal successors, (209), 162 states have internal predecessors, (209), 78 states have call successors, (78), 11 states have call predecessors, (78), 11 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78)
[2023-12-24 05:31:10,900 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 365 transitions.
[2023-12-24 05:31:10,900 INFO  L78                 Accepts]: Start accepts. Automaton has 252 states and 365 transitions. Word has length 166
[2023-12-24 05:31:10,901 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 05:31:10,901 INFO  L495      AbstractCegarLoop]: Abstraction has 252 states and 365 transitions.
[2023-12-24 05:31:10,901 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-24 05:31:10,901 INFO  L276                IsEmpty]: Start isEmpty. Operand 252 states and 365 transitions.
[2023-12-24 05:31:10,906 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 167
[2023-12-24 05:31:10,907 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 05:31:10,907 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 05:31:10,916 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 (5)] Ended with exit code 0
[2023-12-24 05:31:11,116 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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
[2023-12-24 05:31:11,117 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 05:31:11,118 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 05:31:11,118 INFO  L85        PathProgramCache]: Analyzing trace with hash -1519725434, now seen corresponding path program 1 times
[2023-12-24 05:31:11,118 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 05:31:11,118 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061457483]
[2023-12-24 05:31:11,118 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 05:31:11,119 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
[2023-12-24 05:31:11,119 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 05:31:11,126 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)
[2023-12-24 05:31:11,130 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
[2023-12-24 05:31:11,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 05:31:11,434 INFO  L262         TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 41 conjunts are in the unsatisfiable core
[2023-12-24 05:31:11,438 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 05:31:21,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 490 proven. 237 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked.
[2023-12-24 05:31:21,216 INFO  L327         TraceCheckSpWp]: Computing backward predicates...