/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-54.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 16:32:42,994 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 16:32:43,069 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 16:32:43,073 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 16:32:43,074 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 16:32:43,100 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 16:32:43,101 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 16:32:43,101 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 16:32:43,102 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 16:32:43,105 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 16:32:43,106 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 16:32:43,106 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 16:32:43,106 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 16:32:43,108 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 16:32:43,108 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 16:32:43,108 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 16:32:43,109 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 16:32:43,109 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 16:32:43,109 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 16:32:43,110 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 16:32:43,110 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 16:32:43,111 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 16:32:43,111 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 16:32:43,111 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 16:32:43,111 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 16:32:43,111 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 16:32:43,111 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 16:32:43,112 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 16:32:43,112 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 16:32:43,112 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 16:32:43,113 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 16:32:43,113 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 16:32:43,113 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 16:32:43,113 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 16:32:43,113 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 16:32:43,114 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 16:32:43,114 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 16:32:43,114 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 16:32:43,114 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 16:32:43,114 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 16:32:43,114 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 16:32:43,115 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 16:32:43,115 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 16:32:43,115 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 16:32:43,115 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 16:32:43,115 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 16:32:43,115 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 16:32:43,262 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 16:32:43,275 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 16:32:43,277 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 16:32:43,277 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 16:32:43,278 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 16:32:43,278 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-54.i
[2023-12-23 16:32:44,410 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 16:32:44,560 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 16:32:44,560 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-54.i
[2023-12-23 16:32:44,567 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc0e026d/7152ecb625634f4cb2177d17713a9658/FLAGba20b162c
[2023-12-23 16:32:44,578 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc0e026d/7152ecb625634f4cb2177d17713a9658
[2023-12-23 16:32:44,581 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 16:32:44,582 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 16:32:44,582 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 16:32:44,582 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 16:32:44,586 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 16:32:44,587 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,588 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b82c7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44, skipping insertion in model container
[2023-12-23 16:32:44,588 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,613 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 16:32:44,715 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-54.i[919,932]
[2023-12-23 16:32:44,768 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 16:32:44,782 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 16:32:44,790 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-54.i[919,932]
[2023-12-23 16:32:44,839 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 16:32:44,857 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 16:32:44,858 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44 WrapperNode
[2023-12-23 16:32:44,858 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 16:32:44,859 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 16:32:44,859 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 16:32:44,859 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 16:32:44,867 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,879 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,905 INFO  L138                Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 221
[2023-12-23 16:32:44,906 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 16:32:44,906 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 16:32:44,906 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 16:32:44,906 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 16:32:44,931 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,931 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,938 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,961 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 16:32:44,961 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,962 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,970 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,973 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,976 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,977 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:44,980 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 16:32:44,981 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 16:32:44,981 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 16:32:44,981 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 16:32:44,982 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (1/1) ...
[2023-12-23 16:32:45,007 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 16:32:45,017 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 16:32:45,038 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 16:32:45,068 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 16:32:45,075 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 16:32:45,075 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 16:32:45,075 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 16:32:45,076 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 16:32:45,076 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 16:32:45,076 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 16:32:45,163 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 16:32:45,164 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 16:32:50,895 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 16:32:50,952 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 16:32:50,952 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 16:32:50,952 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:32:50 BoogieIcfgContainer
[2023-12-23 16:32:50,952 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 16:32:50,954 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 16:32:50,954 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 16:32:50,957 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 16:32:50,957 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:32:44" (1/3) ...
[2023-12-23 16:32:50,958 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ff04a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:32:50, skipping insertion in model container
[2023-12-23 16:32:50,959 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:44" (2/3) ...
[2023-12-23 16:32:50,959 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ff04a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:32:50, skipping insertion in model container
[2023-12-23 16:32:50,959 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:32:50" (3/3) ...
[2023-12-23 16:32:50,960 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-54.i
[2023-12-23 16:32:50,974 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 16:32:50,975 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 16:32:51,028 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 16:32:51,035 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;@1b9c0e02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 16:32:51,035 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 16:32:51,039 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 92 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2023-12-23 16:32:51,057 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2023-12-23 16:32:51,057 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:32:51,058 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:51,058 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:32:51,064 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:32:51,064 INFO  L85        PathProgramCache]: Analyzing trace with hash 1347777642, now seen corresponding path program 1 times
[2023-12-23 16:32:51,076 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:32:51,077 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190660976]
[2023-12-23 16:32:51,077 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:32:51,077 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 16:32:51,078 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:32:51,093 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 16:32:51,132 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 16:32:51,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:32:51,642 INFO  L262         TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 16:32:51,650 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:32:51,683 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked.
[2023-12-23 16:32:51,684 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:32:51,684 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:32:51,684 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190660976]
[2023-12-23 16:32:51,685 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190660976] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:32:51,685 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:32:51,685 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:32:51,686 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598012533]
[2023-12-23 16:32:51,686 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:32:51,689 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 16:32:51,690 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:32:51,720 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 16:32:51,720 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 16:32:51,723 INFO  L87              Difference]: Start difference. First operand  has 92 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-23 16:32:54,935 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:32:54,936 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:32:54,936 INFO  L93              Difference]: Finished difference Result 180 states and 323 transitions.
[2023-12-23 16:32:54,971 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 16:32:54,972 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 220
[2023-12-23 16:32:54,972 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:32:54,977 INFO  L225             Difference]: With dead ends: 180
[2023-12-23 16:32:54,977 INFO  L226             Difference]: Without dead ends: 89
[2023-12-23 16:32:54,980 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 219 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 16:32:54,982 INFO  L413           NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2023-12-23 16:32:54,982 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2023-12-23 16:32:54,997 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2023-12-23 16:32:55,020 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89.
[2023-12-23 16:32:55,022 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 52 states have internal predecessors, (66), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2023-12-23 16:32:55,023 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 136 transitions.
[2023-12-23 16:32:55,024 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 136 transitions. Word has length 220
[2023-12-23 16:32:55,024 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:32:55,024 INFO  L495      AbstractCegarLoop]: Abstraction has 89 states and 136 transitions.
[2023-12-23 16:32:55,024 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-23 16:32:55,025 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 136 transitions.
[2023-12-23 16:32:55,028 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2023-12-23 16:32:55,028 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:32:55,028 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:55,052 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-23 16:32:55,243 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 16:32:55,245 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:32:55,246 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:32:55,246 INFO  L85        PathProgramCache]: Analyzing trace with hash -1017900386, now seen corresponding path program 1 times
[2023-12-23 16:32:55,249 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:32:55,250 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690893010]
[2023-12-23 16:32:55,250 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:32:55,250 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 16:32:55,253 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:32:55,265 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 16:32:55,266 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 16:32:55,883 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:32:55,911 INFO  L262         TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 16:32:55,918 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:32:56,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-23 16:32:56,740 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:32:56,740 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:32:56,741 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690893010]
[2023-12-23 16:32:56,741 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [690893010] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:32:56,741 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:32:56,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:32:56,741 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717912163]
[2023-12-23 16:32:56,742 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:32:56,744 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 16:32:56,745 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:32:56,745 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 16:32:56,746 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:32:56,746 INFO  L87              Difference]: Start difference. First operand 89 states and 136 transitions. Second operand  has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:33:00,487 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:33:00,596 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:33:00,596 INFO  L93              Difference]: Finished difference Result 252 states and 388 transitions.
[2023-12-23 16:33:00,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 16:33:00,596 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 220
[2023-12-23 16:33:00,598 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:33:00,601 INFO  L225             Difference]: With dead ends: 252
[2023-12-23 16:33:00,601 INFO  L226             Difference]: Without dead ends: 164
[2023-12-23 16:33:00,602 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 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 16:33:00,603 INFO  L413           NwaCegarLoop]: 128 mSDtfsCounter, 15 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-12-23 16:33:00,603 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 250 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-12-23 16:33:00,604 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 164 states.
[2023-12-23 16:33:00,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 154.
[2023-12-23 16:33:00,659 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 154 states, 81 states have (on average 1.1728395061728396) internal successors, (95), 81 states have internal predecessors, (95), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 16:33:00,662 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 235 transitions.
[2023-12-23 16:33:00,663 INFO  L78                 Accepts]: Start accepts. Automaton has 154 states and 235 transitions. Word has length 220
[2023-12-23 16:33:00,665 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:33:00,665 INFO  L495      AbstractCegarLoop]: Abstraction has 154 states and 235 transitions.
[2023-12-23 16:33:00,666 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:33:00,666 INFO  L276                IsEmpty]: Start isEmpty. Operand 154 states and 235 transitions.
[2023-12-23 16:33:00,686 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2023-12-23 16:33:00,686 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:33:00,686 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:00,703 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 16:33:00,887 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 16:33:00,888 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:33:00,888 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:33:00,888 INFO  L85        PathProgramCache]: Analyzing trace with hash 671043356, now seen corresponding path program 1 times
[2023-12-23 16:33:00,889 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:33:00,889 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357725873]
[2023-12-23 16:33:00,890 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:33:00,890 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 16:33:00,890 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:33:00,892 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 16:33:00,893 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 16:33:01,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:33:01,436 INFO  L262         TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 16:33:01,441 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:33:03,425 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-23 16:33:03,426 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:33:03,426 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:33:03,426 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357725873]
[2023-12-23 16:33:03,426 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [357725873] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:33:03,426 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:33:03,426 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:33:03,426 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978782679]
[2023-12-23 16:33:03,427 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:33:03,427 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 16:33:03,427 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:33:03,428 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 16:33:03,428 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:33:03,428 INFO  L87              Difference]: Start difference. First operand 154 states and 235 transitions. Second operand  has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:33:07,168 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:33:07,847 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:33:07,848 INFO  L93              Difference]: Finished difference Result 258 states and 397 transitions.
[2023-12-23 16:33:07,848 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 16:33:07,848 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 220
[2023-12-23 16:33:07,849 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:33:07,850 INFO  L225             Difference]: With dead ends: 258
[2023-12-23 16:33:07,850 INFO  L226             Difference]: Without dead ends: 170
[2023-12-23 16:33:07,851 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 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 16:33:07,852 INFO  L413           NwaCegarLoop]: 132 mSDtfsCounter, 21 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2023-12-23 16:33:07,852 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2023-12-23 16:33:07,854 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 170 states.
[2023-12-23 16:33:07,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 157.
[2023-12-23 16:33:07,888 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 157 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 84 states have internal predecessors, (98), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 16:33:07,889 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 238 transitions.
[2023-12-23 16:33:07,889 INFO  L78                 Accepts]: Start accepts. Automaton has 157 states and 238 transitions. Word has length 220
[2023-12-23 16:33:07,890 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:33:07,890 INFO  L495      AbstractCegarLoop]: Abstraction has 157 states and 238 transitions.
[2023-12-23 16:33:07,890 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:33:07,890 INFO  L276                IsEmpty]: Start isEmpty. Operand 157 states and 238 transitions.
[2023-12-23 16:33:07,891 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2023-12-23 16:33:07,891 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:33:07,892 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:07,912 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2023-12-23 16:33:08,112 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 16:33:08,112 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:33:08,113 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:33:08,113 INFO  L85        PathProgramCache]: Analyzing trace with hash -350024998, now seen corresponding path program 1 times
[2023-12-23 16:33:08,113 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:33:08,114 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631444129]
[2023-12-23 16:33:08,114 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:33:08,114 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 16:33:08,114 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:33:08,115 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 16:33:08,121 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 16:33:08,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:33:08,659 INFO  L262         TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 16:33:08,663 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:33:09,351 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-23 16:33:09,352 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:33:09,352 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:33:09,352 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631444129]
[2023-12-23 16:33:09,352 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631444129] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:33:09,352 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:33:09,352 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:33:09,352 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808836550]
[2023-12-23 16:33:09,353 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:33:09,353 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 16:33:09,353 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:33:09,354 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 16:33:09,354 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:33:09,354 INFO  L87              Difference]: Start difference. First operand 157 states and 238 transitions. Second operand  has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:33:13,477 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:33:14,525 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:33:14,525 INFO  L93              Difference]: Finished difference Result 333 states and 508 transitions.
[2023-12-23 16:33:14,526 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 16:33:14,526 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 220
[2023-12-23 16:33:14,526 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:33:14,528 INFO  L225             Difference]: With dead ends: 333
[2023-12-23 16:33:14,528 INFO  L226             Difference]: Without dead ends: 245
[2023-12-23 16:33:14,529 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 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 16:33:14,530 INFO  L413           NwaCegarLoop]: 139 mSDtfsCounter, 31 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2023-12-23 16:33:14,530 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 269 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time]
[2023-12-23 16:33:14,531 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 245 states.
[2023-12-23 16:33:14,556 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 243.
[2023-12-23 16:33:14,557 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 243 states, 134 states have (on average 1.2014925373134329) internal successors, (161), 134 states have internal predecessors, (161), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105)
[2023-12-23 16:33:14,558 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 371 transitions.
[2023-12-23 16:33:14,558 INFO  L78                 Accepts]: Start accepts. Automaton has 243 states and 371 transitions. Word has length 220
[2023-12-23 16:33:14,559 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:33:14,559 INFO  L495      AbstractCegarLoop]: Abstraction has 243 states and 371 transitions.
[2023-12-23 16:33:14,559 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:33:14,559 INFO  L276                IsEmpty]: Start isEmpty. Operand 243 states and 371 transitions.
[2023-12-23 16:33:14,560 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2023-12-23 16:33:14,561 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:33:14,561 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:14,581 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 (5)] Forceful destruction successful, exit code 0
[2023-12-23 16:33:14,777 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 16:33:14,778 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:33:14,778 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:33:14,778 INFO  L85        PathProgramCache]: Analyzing trace with hash -1629888676, now seen corresponding path program 1 times
[2023-12-23 16:33:14,779 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:33:14,779 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33474254]
[2023-12-23 16:33:14,779 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:33:14,779 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 16:33:14,779 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:33:14,780 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 16:33:14,784 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 16:33:15,263 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:33:15,288 INFO  L262         TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 16:33:15,292 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:33:15,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-23 16:33:15,917 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:33:15,917 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:33:15,917 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33474254]
[2023-12-23 16:33:15,917 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [33474254] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:33:15,917 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:33:15,917 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 16:33:15,918 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093940232]
[2023-12-23 16:33:15,918 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:33:15,918 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 16:33:15,918 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:33:15,918 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 16:33:15,919 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 16:33:15,919 INFO  L87              Difference]: Start difference. First operand 243 states and 371 transitions. Second operand  has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:33:19,975 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:33:24,151 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:33:24,152 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:33:24,152 INFO  L93              Difference]: Finished difference Result 442 states and 674 transitions.
[2023-12-23 16:33:24,189 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 16:33:24,189 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 220
[2023-12-23 16:33:24,190 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:33:24,191 INFO  L225             Difference]: With dead ends: 442
[2023-12-23 16:33:24,191 INFO  L226             Difference]: Without dead ends: 268
[2023-12-23 16:33:24,192 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 16:33:24,193 INFO  L413           NwaCegarLoop]: 132 mSDtfsCounter, 73 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 71 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time
[2023-12-23 16:33:24,193 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 394 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time]
[2023-12-23 16:33:24,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 268 states.
[2023-12-23 16:33:24,241 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 249.
[2023-12-23 16:33:24,244 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 249 states, 140 states have (on average 1.207142857142857) internal successors, (169), 140 states have internal predecessors, (169), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105)
[2023-12-23 16:33:24,249 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 379 transitions.
[2023-12-23 16:33:24,249 INFO  L78                 Accepts]: Start accepts. Automaton has 249 states and 379 transitions. Word has length 220
[2023-12-23 16:33:24,250 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:33:24,250 INFO  L495      AbstractCegarLoop]: Abstraction has 249 states and 379 transitions.
[2023-12-23 16:33:24,250 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 16:33:24,250 INFO  L276                IsEmpty]: Start isEmpty. Operand 249 states and 379 transitions.
[2023-12-23 16:33:24,251 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 222
[2023-12-23 16:33:24,251 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:33:24,252 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:24,268 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 (6)] Forceful destruction successful, exit code 0
[2023-12-23 16:33:24,452 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 16:33:24,453 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:33:24,453 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:33:24,453 INFO  L85        PathProgramCache]: Analyzing trace with hash 383026561, now seen corresponding path program 1 times
[2023-12-23 16:33:24,453 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:33:24,454 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017400771]
[2023-12-23 16:33:24,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:33:24,454 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 16:33:24,454 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:33:24,455 INFO  L229       MonitoredProcess]: Starting monitored process 7 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 16:33:24,456 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 (7)] Waiting until timeout for monitored process
[2023-12-23 16:33:25,136 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:33:25,182 INFO  L262         TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-23 16:33:25,192 INFO  L285         TraceCheckSpWp]: Computing forward predicates...