/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-pe-cn_file-32.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 08:21:47,064 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 08:21:47,145 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 08:21:47,148 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 08:21:47,149 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 08:21:47,175 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 08:21:47,175 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 08:21:47,175 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 08:21:47,176 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 08:21:47,176 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 08:21:47,176 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 08:21:47,177 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 08:21:47,177 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 08:21:47,177 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 08:21:47,177 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 08:21:47,178 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 08:21:47,178 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 08:21:47,178 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 08:21:47,180 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 08:21:47,181 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 08:21:47,181 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 08:21:47,182 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 08:21:47,182 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 08:21:47,183 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 08:21:47,183 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 08:21:47,183 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 08:21:47,183 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 08:21:47,183 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 08:21:47,183 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 08:21:47,183 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 08:21:47,184 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 08:21:47,184 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 08:21:47,184 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 08:21:47,184 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 08:21:47,184 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 08:21:47,185 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 08:21:47,185 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 08:21:47,185 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 08:21:47,185 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 08:21:47,185 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 08:21:47,185 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 08:21:47,186 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 08:21:47,186 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 08:21:47,186 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 08:21:47,186 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 08:21:47,186 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 08:21:47,187 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 08:21:47,384 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 08:21:47,406 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 08:21:47,408 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 08:21:47,408 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 08:21:47,409 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 08:21:47,410 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-32.i
[2023-12-23 08:21:48,691 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 08:21:48,862 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 08:21:48,862 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-32.i
[2023-12-23 08:21:48,870 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e475de1c/d5815d30de114a5a972c63d2b181ba57/FLAG88ae36916
[2023-12-23 08:21:48,884 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e475de1c/d5815d30de114a5a972c63d2b181ba57
[2023-12-23 08:21:48,886 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 08:21:48,887 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 08:21:48,888 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 08:21:48,889 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 08:21:48,892 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 08:21:48,892 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:21:48" (1/1) ...
[2023-12-23 08:21:48,893 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3988b8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:48, skipping insertion in model container
[2023-12-23 08:21:48,893 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:21:48" (1/1) ...
[2023-12-23 08:21:48,915 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 08:21:49,007 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-pe-cn_file-32.i[919,932]
[2023-12-23 08:21:49,060 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 08:21:49,078 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 08:21:49,096 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-pe-cn_file-32.i[919,932]
[2023-12-23 08:21:49,122 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 08:21:49,135 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 08:21:49,136 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49 WrapperNode
[2023-12-23 08:21:49,136 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 08:21:49,137 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 08:21:49,137 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 08:21:49,137 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 08:21:49,141 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,158 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,195 INFO  L138                Inliner]: procedures = 27, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 252
[2023-12-23 08:21:49,195 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 08:21:49,196 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 08:21:49,196 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 08:21:49,196 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 08:21:49,206 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,207 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,211 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,222 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 08:21:49,223 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,230 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,238 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,241 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,243 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,255 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,259 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 08:21:49,259 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 08:21:49,259 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 08:21:49,260 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 08:21:49,260 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (1/1) ...
[2023-12-23 08:21:49,266 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 08:21:49,275 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 08:21:49,306 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 08:21:49,325 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 08:21:49,330 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 08:21:49,330 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 08:21:49,330 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 08:21:49,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 08:21:49,330 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 08:21:49,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 08:21:49,415 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 08:21:49,418 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 08:22:11,718 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 08:22:11,764 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 08:22:11,765 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 08:22:11,765 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:22:11 BoogieIcfgContainer
[2023-12-23 08:22:11,765 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 08:22:11,767 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 08:22:11,767 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 08:22:11,769 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 08:22:11,769 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 08:21:48" (1/3) ...
[2023-12-23 08:22:11,770 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbdd8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:22:11, skipping insertion in model container
[2023-12-23 08:22:11,770 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:21:49" (2/3) ...
[2023-12-23 08:22:11,770 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbdd8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:22:11, skipping insertion in model container
[2023-12-23 08:22:11,770 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:22:11" (3/3) ...
[2023-12-23 08:22:11,771 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-32.i
[2023-12-23 08:22:11,800 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 08:22:11,800 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 08:22:11,833 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 08:22:11,837 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;@66418d2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 08:22:11,837 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 08:22:11,843 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 108 states, 61 states have (on average 1.459016393442623) internal successors, (89), 62 states have internal predecessors, (89), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2023-12-23 08:22:11,867 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 267
[2023-12-23 08:22:11,868 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:22:11,869 INFO  L195           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:11,869 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:22:11,875 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:22:11,876 INFO  L85        PathProgramCache]: Analyzing trace with hash -2096686074, now seen corresponding path program 1 times
[2023-12-23 08:22:11,888 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:22:11,889 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680487998]
[2023-12-23 08:22:11,889 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:22:11,890 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 08:22:11,890 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:22:11,892 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 08:22:11,908 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 08:22:13,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:22:13,683 INFO  L262         TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 08:22:13,692 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:22:13,733 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 1494 proven. 0 refuted. 0 times theorem prover too weak. 2290 trivial. 0 not checked.
[2023-12-23 08:22:13,733 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:22:13,734 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:22:13,734 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680487998]
[2023-12-23 08:22:13,735 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [680487998] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:22:13,735 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:22:13,735 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 08:22:13,736 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995111479]
[2023-12-23 08:22:13,737 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:22:13,740 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 08:22:13,740 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:22:13,760 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 08:22:13,761 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 08:22:13,763 INFO  L87              Difference]: Start difference. First operand  has 108 states, 61 states have (on average 1.459016393442623) internal successors, (89), 62 states have internal predecessors, (89), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand  has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44)
[2023-12-23 08:22:15,870 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 08:22:15,871 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:22:15,871 INFO  L93              Difference]: Finished difference Result 213 states and 396 transitions.
[2023-12-23 08:22:15,902 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 08:22:15,903 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 266
[2023-12-23 08:22:15,903 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:22:15,909 INFO  L225             Difference]: With dead ends: 213
[2023-12-23 08:22:15,909 INFO  L226             Difference]: Without dead ends: 106
[2023-12-23 08:22:15,911 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 265 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 08:22:15,914 INFO  L413           NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-23 08:22:15,915 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-23 08:22:15,927 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2023-12-23 08:22:15,949 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106.
[2023-12-23 08:22:15,950 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 106 states, 60 states have (on average 1.4) internal successors, (84), 60 states have internal predecessors, (84), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2023-12-23 08:22:15,952 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 172 transitions.
[2023-12-23 08:22:15,953 INFO  L78                 Accepts]: Start accepts. Automaton has 106 states and 172 transitions. Word has length 266
[2023-12-23 08:22:15,953 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:22:15,953 INFO  L495      AbstractCegarLoop]: Abstraction has 106 states and 172 transitions.
[2023-12-23 08:22:15,953 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44)
[2023-12-23 08:22:15,954 INFO  L276                IsEmpty]: Start isEmpty. Operand 106 states and 172 transitions.
[2023-12-23 08:22:15,957 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 267
[2023-12-23 08:22:15,957 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:22:15,957 INFO  L195           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:16,007 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 08:22:16,180 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 08:22:16,181 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:22:16,181 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:22:16,181 INFO  L85        PathProgramCache]: Analyzing trace with hash -871628334, now seen corresponding path program 1 times
[2023-12-23 08:22:16,182 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:22:16,182 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212725543]
[2023-12-23 08:22:16,182 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:22:16,183 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 08:22:16,183 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:22:16,184 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 08:22:16,185 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 08:22:17,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:22:17,955 INFO  L262         TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 08:22:17,961 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:22:22,450 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 1695 proven. 87 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked.
[2023-12-23 08:22:22,451 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 08:22:24,631 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 42 proven. 87 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked.
[2023-12-23 08:22:24,631 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:22:24,632 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212725543]
[2023-12-23 08:22:24,632 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212725543] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 08:22:24,632 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 08:22:24,632 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 08:22:24,632 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49575504]
[2023-12-23 08:22:24,632 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 08:22:24,635 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 08:22:24,636 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:22:24,637 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 08:22:24,637 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 08:22:24,638 INFO  L87              Difference]: Start difference. First operand 106 states and 172 transitions. Second operand  has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74)
[2023-12-23 08:22:30,799 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 08:22:31,795 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:22:31,795 INFO  L93              Difference]: Finished difference Result 242 states and 387 transitions.
[2023-12-23 08:22:31,796 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 08:22:31,796 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 266
[2023-12-23 08:22:31,797 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:22:31,798 INFO  L225             Difference]: With dead ends: 242
[2023-12-23 08:22:31,799 INFO  L226             Difference]: Without dead ends: 137
[2023-12-23 08:22:31,800 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 524 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 08:22:31,800 INFO  L413           NwaCegarLoop]: 144 mSDtfsCounter, 134 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time
[2023-12-23 08:22:31,801 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 303 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time]
[2023-12-23 08:22:31,801 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 137 states.
[2023-12-23 08:22:31,815 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 132.
[2023-12-23 08:22:31,816 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 132 states, 71 states have (on average 1.323943661971831) internal successors, (94), 72 states have internal predecessors, (94), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58)
[2023-12-23 08:22:31,817 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 210 transitions.
[2023-12-23 08:22:31,817 INFO  L78                 Accepts]: Start accepts. Automaton has 132 states and 210 transitions. Word has length 266
[2023-12-23 08:22:31,818 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:22:31,818 INFO  L495      AbstractCegarLoop]: Abstraction has 132 states and 210 transitions.
[2023-12-23 08:22:31,818 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74)
[2023-12-23 08:22:31,818 INFO  L276                IsEmpty]: Start isEmpty. Operand 132 states and 210 transitions.
[2023-12-23 08:22:31,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 268
[2023-12-23 08:22:31,820 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:22:31,821 INFO  L195           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:31,860 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 08:22:32,036 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 08:22:32,037 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:22:32,037 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:22:32,037 INFO  L85        PathProgramCache]: Analyzing trace with hash -1894240940, now seen corresponding path program 1 times
[2023-12-23 08:22:32,038 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:22:32,038 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558099593]
[2023-12-23 08:22:32,038 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:22:32,038 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 08:22:32,038 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:22:32,040 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 08:22:32,052 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 08:22:33,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:22:33,815 INFO  L262         TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-23 08:22:33,819 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:22:42,343 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 1726 proven. 168 refuted. 0 times theorem prover too weak. 1890 trivial. 0 not checked.
[2023-12-23 08:22:42,343 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 08:22:45,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 42 proven. 87 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked.
[2023-12-23 08:22:45,097 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:22:45,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558099593]
[2023-12-23 08:22:45,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [558099593] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 08:22:45,097 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 08:22:45,097 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14
[2023-12-23 08:22:45,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340862991]
[2023-12-23 08:22:45,098 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 08:22:45,098 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-23 08:22:45,098 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:22:45,099 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-23 08:22:45,099 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2023-12-23 08:22:45,119 INFO  L87              Difference]: Start difference. First operand 132 states and 210 transitions. Second operand  has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (73), 3 states have call predecessors, (73), 5 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74)
[2023-12-23 08:22:54,944 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 08:23:03,776 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:23:03,777 INFO  L93              Difference]: Finished difference Result 497 states and 779 transitions.
[2023-12-23 08:23:03,782 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2023-12-23 08:23:03,782 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (73), 3 states have call predecessors, (73), 5 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) Word has length 267
[2023-12-23 08:23:03,783 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:23:03,786 INFO  L225             Difference]: With dead ends: 497
[2023-12-23 08:23:03,786 INFO  L226             Difference]: Without dead ends: 388
[2023-12-23 08:23:03,787 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 523 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560
[2023-12-23 08:23:03,788 INFO  L413           NwaCegarLoop]: 185 mSDtfsCounter, 527 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time
[2023-12-23 08:23:03,789 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 830 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time]
[2023-12-23 08:23:03,789 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 388 states.
[2023-12-23 08:23:03,858 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 358.
[2023-12-23 08:23:03,861 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 358 states, 202 states have (on average 1.3217821782178218) internal successors, (267), 203 states have internal predecessors, (267), 146 states have call successors, (146), 9 states have call predecessors, (146), 9 states have return successors, (146), 145 states have call predecessors, (146), 146 states have call successors, (146)
[2023-12-23 08:23:03,864 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 559 transitions.
[2023-12-23 08:23:03,865 INFO  L78                 Accepts]: Start accepts. Automaton has 358 states and 559 transitions. Word has length 267
[2023-12-23 08:23:03,866 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:23:03,866 INFO  L495      AbstractCegarLoop]: Abstraction has 358 states and 559 transitions.
[2023-12-23 08:23:03,866 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (73), 3 states have call predecessors, (73), 5 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74)
[2023-12-23 08:23:03,867 INFO  L276                IsEmpty]: Start isEmpty. Operand 358 states and 559 transitions.
[2023-12-23 08:23:03,871 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 268
[2023-12-23 08:23:03,871 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:23:03,871 INFO  L195           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:23:03,911 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 08:23:04,084 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 08:23:04,085 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:23:04,085 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:23:04,085 INFO  L85        PathProgramCache]: Analyzing trace with hash -873172586, now seen corresponding path program 1 times
[2023-12-23 08:23:04,086 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:23:04,086 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215230602]
[2023-12-23 08:23:04,086 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:23:04,086 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 08:23:04,086 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:23:04,087 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 08:23:04,092 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-23 08:23:05,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:23:05,763 INFO  L262         TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-23 08:23:05,767 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:24:00,063 WARN  L293               SmtUtils]: Spent 14.54s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2023-12-23 08:24:01,322 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 1418 proven. 192 refuted. 0 times theorem prover too weak. 2174 trivial. 0 not checked.
[2023-12-23 08:24:01,322 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 08:24:47,713 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:24:47,713 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215230602]
[2023-12-23 08:24:47,713 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215230602] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 08:24:47,713 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1963602609]
[2023-12-23 08:24:47,714 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:24:47,714 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 08:24:47,714 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 08:24:47,750 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 08:24:47,751 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2023-12-23 08:24:51,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:24:51,940 INFO  L262         TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-23 08:24:51,946 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:25:30,770 WARN  L293               SmtUtils]: Spent 5.25s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2023-12-23 08:26:24,581 WARN  L293               SmtUtils]: Spent 15.69s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2023-12-23 08:26:26,666 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 1418 proven. 192 refuted. 0 times theorem prover too weak. 2174 trivial. 0 not checked.
[2023-12-23 08:26:26,666 INFO  L327         TraceCheckSpWp]: Computing backward predicates...