/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-84.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 11:21:19,088 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 11:21:19,154 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 11:21:19,159 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 11:21:19,159 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 11:21:19,180 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 11:21:19,181 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 11:21:19,181 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 11:21:19,182 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 11:21:19,184 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 11:21:19,184 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 11:21:19,185 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 11:21:19,185 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 11:21:19,186 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 11:21:19,187 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 11:21:19,187 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 11:21:19,187 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 11:21:19,187 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 11:21:19,188 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 11:21:19,189 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 11:21:19,189 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 11:21:19,189 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 11:21:19,189 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 11:21:19,190 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 11:21:19,190 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 11:21:19,190 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 11:21:19,190 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 11:21:19,190 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 11:21:19,190 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 11:21:19,190 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 11:21:19,191 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 11:21:19,191 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 11:21:19,192 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 11:21:19,192 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 11:21:19,192 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 11:21:19,192 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 11:21:19,192 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 11:21:19,192 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 11:21:19,192 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 11:21:19,192 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 11:21:19,193 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 11:21:19,193 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 11:21:19,193 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 11:21:19,193 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 11:21:19,193 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 11:21:19,194 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 11:21:19,194 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 11:21:19,361 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 11:21:19,375 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 11:21:19,377 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 11:21:19,377 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 11:21:19,378 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 11:21:19,378 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-84.i
[2023-12-23 11:21:20,487 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 11:21:20,657 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 11:21:20,657 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-84.i
[2023-12-23 11:21:20,666 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e8225a52/f1e4d947293f4e7abaea750c6d21ace1/FLAGa0470cbc9
[2023-12-23 11:21:20,680 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e8225a52/f1e4d947293f4e7abaea750c6d21ace1
[2023-12-23 11:21:20,682 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 11:21:20,683 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 11:21:20,685 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 11:21:20,685 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 11:21:20,688 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 11:21:20,689 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:20,689 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b9c75cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20, skipping insertion in model container
[2023-12-23 11:21:20,690 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:20,721 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 11:21:20,835 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-84.i[919,932]
[2023-12-23 11:21:20,900 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 11:21:20,913 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 11:21:20,921 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-84.i[919,932]
[2023-12-23 11:21:20,968 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 11:21:20,980 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 11:21:20,981 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20 WrapperNode
[2023-12-23 11:21:20,981 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 11:21:20,982 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 11:21:20,982 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 11:21:20,982 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 11:21:20,986 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:20,997 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,025 INFO  L138                Inliner]: procedures = 27, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197
[2023-12-23 11:21:21,026 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 11:21:21,026 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 11:21:21,027 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 11:21:21,027 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 11:21:21,036 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,036 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,039 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,067 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 11:21:21,068 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,068 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,075 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,077 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,079 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,080 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,083 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 11:21:21,084 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 11:21:21,084 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 11:21:21,084 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 11:21:21,084 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (1/1) ...
[2023-12-23 11:21:21,089 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 11:21:21,100 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 11:21:21,139 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 11:21:21,183 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 11:21:21,191 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 11:21:21,191 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 11:21:21,191 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 11:21:21,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 11:21:21,193 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 11:21:21,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 11:21:21,286 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 11:21:21,288 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 11:21:22,482 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 11:21:22,528 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 11:21:22,528 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 11:21:22,528 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:21:22 BoogieIcfgContainer
[2023-12-23 11:21:22,528 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 11:21:22,530 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 11:21:22,530 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 11:21:22,532 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 11:21:22,532 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:21:20" (1/3) ...
[2023-12-23 11:21:22,533 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3937e0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:21:22, skipping insertion in model container
[2023-12-23 11:21:22,533 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:20" (2/3) ...
[2023-12-23 11:21:22,533 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3937e0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:21:22, skipping insertion in model container
[2023-12-23 11:21:22,533 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:21:22" (3/3) ...
[2023-12-23 11:21:22,534 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-84.i
[2023-12-23 11:21:22,546 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 11:21:22,546 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 11:21:22,588 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 11:21:22,592 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;@420bec2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 11:21:22,593 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 11:21:22,596 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 88 states, 53 states have (on average 1.471698113207547) internal successors, (78), 54 states have internal predecessors, (78), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2023-12-23 11:21:22,613 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 202
[2023-12-23 11:21:22,613 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:21:22,614 INFO  L195           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:21:22,614 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:21:22,621 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:21:22,621 INFO  L85        PathProgramCache]: Analyzing trace with hash 57078164, now seen corresponding path program 1 times
[2023-12-23 11:21:22,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:21:22,633 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417593905]
[2023-12-23 11:21:22,633 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:21:22,634 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 11:21:22,634 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:21:22,636 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 11:21:22,670 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 11:21:22,977 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:21:22,993 INFO  L262         TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 11:21:23,001 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:21:23,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 1586 trivial. 0 not checked.
[2023-12-23 11:21:23,069 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:21:23,069 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:21:23,069 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417593905]
[2023-12-23 11:21:23,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417593905] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:21:23,070 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:21:23,070 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 11:21:23,071 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715977602]
[2023-12-23 11:21:23,072 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:21:23,081 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 11:21:23,081 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:21:23,105 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 11:21:23,105 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 11:21:23,107 INFO  L87              Difference]: Start difference. First operand  has 88 states, 53 states have (on average 1.471698113207547) internal successors, (78), 54 states have internal predecessors, (78), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2023-12-23 11:21:23,201 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:21:23,202 INFO  L93              Difference]: Finished difference Result 173 states and 314 transitions.
[2023-12-23 11:21:23,212 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 11:21:23,213 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 201
[2023-12-23 11:21:23,214 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:21:23,219 INFO  L225             Difference]: With dead ends: 173
[2023-12-23 11:21:23,219 INFO  L226             Difference]: Without dead ends: 86
[2023-12-23 11:21:23,222 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 200 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 11:21:23,224 INFO  L413           NwaCegarLoop]: 134 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, 134 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 11:21:23,224 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 11:21:23,234 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2023-12-23 11:21:23,254 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86.
[2023-12-23 11:21:23,255 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 86 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2023-12-23 11:21:23,260 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 137 transitions.
[2023-12-23 11:21:23,261 INFO  L78                 Accepts]: Start accepts. Automaton has 86 states and 137 transitions. Word has length 201
[2023-12-23 11:21:23,261 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:21:23,261 INFO  L495      AbstractCegarLoop]: Abstraction has 86 states and 137 transitions.
[2023-12-23 11:21:23,261 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2023-12-23 11:21:23,262 INFO  L276                IsEmpty]: Start isEmpty. Operand 86 states and 137 transitions.
[2023-12-23 11:21:23,271 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 202
[2023-12-23 11:21:23,271 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:21:23,271 INFO  L195           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:21:23,286 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 11:21:23,472 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 11:21:23,473 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:21:23,473 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:21:23,473 INFO  L85        PathProgramCache]: Analyzing trace with hash -993286952, now seen corresponding path program 1 times
[2023-12-23 11:21:23,474 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:21:23,474 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805577355]
[2023-12-23 11:21:23,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:21:23,474 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 11:21:23,475 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:21:23,476 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 11:21:23,477 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 11:21:23,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:21:23,742 INFO  L262         TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 11:21:23,748 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:21:24,006 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked.
[2023-12-23 11:21:24,007 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:21:24,007 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:21:24,010 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805577355]
[2023-12-23 11:21:24,010 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805577355] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:21:24,010 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:21:24,011 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 11:21:24,011 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579352745]
[2023-12-23 11:21:24,011 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:21:24,013 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 11:21:24,013 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:21:24,014 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 11:21:24,014 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 11:21:24,014 INFO  L87              Difference]: Start difference. First operand 86 states and 137 transitions. Second operand  has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32)
[2023-12-23 11:21:24,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:21:24,094 INFO  L93              Difference]: Finished difference Result 168 states and 267 transitions.
[2023-12-23 11:21:24,103 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 11:21:24,104 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 201
[2023-12-23 11:21:24,105 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:21:24,106 INFO  L225             Difference]: With dead ends: 168
[2023-12-23 11:21:24,106 INFO  L226             Difference]: Without dead ends: 83
[2023-12-23 11:21:24,107 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 11:21:24,108 INFO  L413           NwaCegarLoop]: 120 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 11:21:24,108 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 120 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 11:21:24,109 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2023-12-23 11:21:24,119 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83.
[2023-12-23 11:21:24,120 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 49 states have internal predecessors, (63), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2023-12-23 11:21:24,121 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 127 transitions.
[2023-12-23 11:21:24,121 INFO  L78                 Accepts]: Start accepts. Automaton has 83 states and 127 transitions. Word has length 201
[2023-12-23 11:21:24,123 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:21:24,123 INFO  L495      AbstractCegarLoop]: Abstraction has 83 states and 127 transitions.
[2023-12-23 11:21:24,123 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32)
[2023-12-23 11:21:24,123 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 127 transitions.
[2023-12-23 11:21:24,127 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 203
[2023-12-23 11:21:24,127 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:21:24,128 INFO  L195           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:21:24,160 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 11:21:24,342 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 11:21:24,343 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:21:24,346 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:21:24,347 INFO  L85        PathProgramCache]: Analyzing trace with hash 1688212061, now seen corresponding path program 1 times
[2023-12-23 11:21:24,347 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:21:24,347 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360597776]
[2023-12-23 11:21:24,347 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:21:24,348 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 11:21:24,348 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:21:24,353 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 11:21:24,354 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 11:21:24,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:21:24,642 INFO  L262         TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-23 11:21:24,648 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:21:25,110 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 1098 proven. 120 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked.
[2023-12-23 11:21:25,111 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:21:25,791 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:21:25,791 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360597776]
[2023-12-23 11:21:25,791 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360597776] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 11:21:25,791 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1837927654]
[2023-12-23 11:21:25,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:21:25,792 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 11:21:25,792 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 11:21:25,834 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 11:21:25,835 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 11:21:26,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:21:26,638 INFO  L262         TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-23 11:21:26,643 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:21:26,903 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 267 proven. 87 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked.
[2023-12-23 11:21:26,903 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:21:28,243 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1837927654] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 11:21:28,243 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 11:21:28,243 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 9
[2023-12-23 11:21:28,243 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747426026]
[2023-12-23 11:21:28,243 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 11:21:28,244 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-23 11:21:28,244 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:21:28,245 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-23 11:21:28,245 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182
[2023-12-23 11:21:28,245 INFO  L87              Difference]: Start difference. First operand 83 states and 127 transitions. Second operand  has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45)
[2023-12-23 11:21:28,875 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:21:28,875 INFO  L93              Difference]: Finished difference Result 185 states and 272 transitions.
[2023-12-23 11:21:28,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-23 11:21:28,875 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 202
[2023-12-23 11:21:28,876 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:21:28,877 INFO  L225             Difference]: With dead ends: 185
[2023-12-23 11:21:28,877 INFO  L226             Difference]: Without dead ends: 103
[2023-12-23 11:21:28,878 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462
[2023-12-23 11:21:28,878 INFO  L413           NwaCegarLoop]: 79 mSDtfsCounter, 86 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 11:21:28,879 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 240 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 11:21:28,879 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 103 states.
[2023-12-23 11:21:28,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98.
[2023-12-23 11:21:28,888 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 60 states have internal predecessors, (71), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 11:21:28,888 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 139 transitions.
[2023-12-23 11:21:28,888 INFO  L78                 Accepts]: Start accepts. Automaton has 98 states and 139 transitions. Word has length 202
[2023-12-23 11:21:28,889 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:21:28,889 INFO  L495      AbstractCegarLoop]: Abstraction has 98 states and 139 transitions.
[2023-12-23 11:21:28,889 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45)
[2023-12-23 11:21:28,889 INFO  L276                IsEmpty]: Start isEmpty. Operand 98 states and 139 transitions.
[2023-12-23 11:21:28,890 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 203
[2023-12-23 11:21:28,890 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:21:28,891 INFO  L195           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:21:28,904 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 11:21:29,104 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2023-12-23 11:21:29,296 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 11:21:29,297 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:21:29,297 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:21:29,297 INFO  L85        PathProgramCache]: Analyzing trace with hash 1553350489, now seen corresponding path program 1 times
[2023-12-23 11:21:29,298 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:21:29,298 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340589031]
[2023-12-23 11:21:29,298 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:21:29,298 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 11:21:29,298 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:21:29,299 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 11:21:29,305 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 11:21:29,742 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:21:29,760 INFO  L262         TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 28 conjunts are in the unsatisfiable core
[2023-12-23 11:21:29,765 INFO  L285         TraceCheckSpWp]: Computing forward predicates...