/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-18.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-05 23:33:02,866 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 23:33:02,924 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-05 23:33:02,929 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 23:33:02,929 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 23:33:02,947 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 23:33:02,948 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 23:33:02,948 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 23:33:02,949 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 23:33:02,949 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 23:33:02,950 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 23:33:02,950 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 23:33:02,950 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 23:33:02,951 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 23:33:02,951 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 23:33:02,951 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 23:33:02,952 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 23:33:02,952 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 23:33:02,952 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 23:33:02,953 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 23:33:02,953 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 23:33:02,954 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 23:33:02,954 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 23:33:02,954 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 23:33:02,955 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 23:33:02,955 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 23:33:02,955 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 23:33:02,956 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 23:33:02,956 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 23:33:02,956 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 23:33:02,956 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 23:33:02,957 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 23:33:02,963 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 23:33:02,963 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 23:33:02,963 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:33:02,964 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 23:33:02,964 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 23:33:02,964 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 23:33:02,964 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 23:33:02,964 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 23:33:02,965 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 23:33:02,965 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 23:33:02,965 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 23:33:02,965 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 23:33:02,965 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-05 23:33:03,176 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 23:33:03,200 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 23:33:03,203 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 23:33:03,204 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 23:33:03,205 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 23:33:03,206 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-18.i
[2024-11-05 23:33:04,618 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 23:33:04,770 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 23:33:04,771 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-18.i
[2024-11-05 23:33:04,778 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d25bdd27/4d177ea94dff4e74a8daefd9335dd895/FLAGc4beb4a99
[2024-11-05 23:33:05,179 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d25bdd27/4d177ea94dff4e74a8daefd9335dd895
[2024-11-05 23:33:05,181 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 23:33:05,182 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 23:33:05,185 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 23:33:05,185 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 23:33:05,190 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 23:33:05,191 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,192 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82e5442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05, skipping insertion in model container
[2024-11-05 23:33:05,192 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,221 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 23:33:05,399 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-18.i[915,928]
[2024-11-05 23:33:05,435 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:33:05,446 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 23:33:05,456 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-18.i[915,928]
[2024-11-05 23:33:05,471 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:33:05,489 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 23:33:05,490 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05 WrapperNode
[2024-11-05 23:33:05,490 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 23:33:05,491 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 23:33:05,491 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 23:33:05,491 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 23:33:05,497 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,505 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,524 INFO  L138                Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107
[2024-11-05 23:33:05,524 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 23:33:05,527 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 23:33:05,527 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 23:33:05,528 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 23:33:05,540 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,541 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,544 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,554 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].
[2024-11-05 23:33:05,555 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,555 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,561 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,564 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,566 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,567 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,570 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 23:33:05,571 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 23:33:05,571 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 23:33:05,571 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 23:33:05,572 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (1/1) ...
[2024-11-05 23:33:05,580 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:33:05,588 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 23:33:05,603 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)
[2024-11-05 23:33:05,606 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
[2024-11-05 23:33:05,633 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 23:33:05,634 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 23:33:05,634 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 23:33:05,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 23:33:05,634 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 23:33:05,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 23:33:05,720 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 23:33:05,722 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 23:33:06,011 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-05 23:33:06,011 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 23:33:06,026 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 23:33:06,027 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 23:33:06,027 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:33:06 BoogieIcfgContainer
[2024-11-05 23:33:06,027 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 23:33:06,030 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 23:33:06,031 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 23:33:06,034 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 23:33:06,034 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 11:33:05" (1/3) ...
[2024-11-05 23:33:06,035 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa702be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:33:06, skipping insertion in model container
[2024-11-05 23:33:06,035 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:05" (2/3) ...
[2024-11-05 23:33:06,036 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa702be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:33:06, skipping insertion in model container
[2024-11-05 23:33:06,036 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:33:06" (3/3) ...
[2024-11-05 23:33:06,037 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-18.i
[2024-11-05 23:33:06,054 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 23:33:06,054 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 23:33:06,102 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 23:33:06,109 INFO  L333      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, 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;@700a1f2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 23:33:06,109 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 23:33:06,114 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-05 23:33:06,124 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-05 23:33:06,124 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:06,125 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:06,125 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:06,130 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:06,130 INFO  L85        PathProgramCache]: Analyzing trace with hash 1155150215, now seen corresponding path program 1 times
[2024-11-05 23:33:06,141 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:06,141 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409731623]
[2024-11-05 23:33:06,142 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:06,142 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
[2024-11-05 23:33:06,142 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:06,144 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)
[2024-11-05 23:33:06,145 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
[2024-11-05 23:33:06,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:06,364 INFO  L255         TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:06,371 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:33:06,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked.
[2024-11-05 23:33:06,408 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:33:06,408 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:33:06,409 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409731623]
[2024-11-05 23:33:06,409 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409731623] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:33:06,409 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:33:06,410 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-05 23:33:06,412 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595501145]
[2024-11-05 23:33:06,412 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:33:06,416 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 23:33:06,417 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:33:06,443 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 23:33:06,444 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 23:33:06,445 INFO  L87              Difference]: Start difference. First operand  has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-05 23:33:06,466 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:33:06,467 INFO  L93              Difference]: Finished difference Result 95 states and 160 transitions.
[2024-11-05 23:33:06,467 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 23:33:06,468 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102
[2024-11-05 23:33:06,469 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:33:06,474 INFO  L225             Difference]: With dead ends: 95
[2024-11-05 23:33:06,474 INFO  L226             Difference]: Without dead ends: 47
[2024-11-05 23:33:06,476 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 23:33:06,479 INFO  L432           NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-05 23:33:06,480 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 23:33:06,491 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-05 23:33:06,508 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2024-11-05 23:33:06,509 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-05 23:33:06,510 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions.
[2024-11-05 23:33:06,512 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 102
[2024-11-05 23:33:06,512 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:33:06,512 INFO  L471      AbstractCegarLoop]: Abstraction has 47 states and 68 transitions.
[2024-11-05 23:33:06,512 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-05 23:33:06,513 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions.
[2024-11-05 23:33:06,515 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-05 23:33:06,515 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:06,515 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:06,522 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
[2024-11-05 23:33:06,716 WARN  L453      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
[2024-11-05 23:33:06,717 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:06,717 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:06,718 INFO  L85        PathProgramCache]: Analyzing trace with hash 2122845959, now seen corresponding path program 1 times
[2024-11-05 23:33:06,718 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:06,719 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757550158]
[2024-11-05 23:33:06,719 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:06,719 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
[2024-11-05 23:33:06,719 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:06,721 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)
[2024-11-05 23:33:06,722 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
[2024-11-05 23:33:06,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:06,878 INFO  L255         TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:06,889 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:33:07,697 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-05 23:33:07,697 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:33:07,697 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:33:07,698 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757550158]
[2024-11-05 23:33:07,698 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757550158] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:33:07,698 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:33:07,698 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-05 23:33:07,698 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144709012]
[2024-11-05 23:33:07,698 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:33:07,700 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-05 23:33:07,700 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:33:07,700 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-05 23:33:07,701 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-05 23:33:07,701 INFO  L87              Difference]: Start difference. First operand 47 states and 68 transitions. Second operand  has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-05 23:33:07,996 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:33:07,997 INFO  L93              Difference]: Finished difference Result 136 states and 199 transitions.
[2024-11-05 23:33:08,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-05 23:33:08,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102
[2024-11-05 23:33:08,001 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:33:08,002 INFO  L225             Difference]: With dead ends: 136
[2024-11-05 23:33:08,003 INFO  L226             Difference]: Without dead ends: 92
[2024-11-05 23:33:08,005 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-05 23:33:08,006 INFO  L432           NwaCegarLoop]: 62 mSDtfsCounter, 40 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-05 23:33:08,007 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 204 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-05 23:33:08,009 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-11-05 23:33:08,032 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 78.
[2024-11-05 23:33:08,033 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-05 23:33:08,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions.
[2024-11-05 23:33:08,035 INFO  L78                 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 102
[2024-11-05 23:33:08,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:33:08,036 INFO  L471      AbstractCegarLoop]: Abstraction has 78 states and 114 transitions.
[2024-11-05 23:33:08,036 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-05 23:33:08,036 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions.
[2024-11-05 23:33:08,038 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2024-11-05 23:33:08,038 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:08,038 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:08,048 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 (3)] Ended with exit code 0
[2024-11-05 23:33:08,238 WARN  L453      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
[2024-11-05 23:33:08,239 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:08,240 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:08,240 INFO  L85        PathProgramCache]: Analyzing trace with hash -679720955, now seen corresponding path program 1 times
[2024-11-05 23:33:08,241 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:08,241 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470704027]
[2024-11-05 23:33:08,241 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:08,241 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
[2024-11-05 23:33:08,241 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:08,243 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)
[2024-11-05 23:33:08,245 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
[2024-11-05 23:33:08,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:08,374 INFO  L255         TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:08,381 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:33:15,895 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-05 23:33:15,895 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:33:15,895 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:33:15,895 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470704027]
[2024-11-05 23:33:15,896 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [470704027] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:33:15,896 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:33:15,896 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-05 23:33:15,896 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020957222]
[2024-11-05 23:33:15,896 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:33:15,896 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-05 23:33:15,897 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:33:15,899 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-05 23:33:15,899 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2024-11-05 23:33:15,899 INFO  L87              Difference]: Start difference. First operand 78 states and 114 transitions. Second operand  has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-05 23:33:16,531 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:33:16,531 INFO  L93              Difference]: Finished difference Result 122 states and 169 transitions.
[2024-11-05 23:33:16,533 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-05 23:33:16,533 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103
[2024-11-05 23:33:16,534 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:33:16,536 INFO  L225             Difference]: With dead ends: 122
[2024-11-05 23:33:16,536 INFO  L226             Difference]: Without dead ends: 120
[2024-11-05 23:33:16,537 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210
[2024-11-05 23:33:16,537 INFO  L432           NwaCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-05 23:33:16,538 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 324 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-05 23:33:16,539 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2024-11-05 23:33:16,554 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 86.
[2024-11-05 23:33:16,555 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 86 states, 51 states have (on average 1.196078431372549) internal successors, (61), 51 states have internal predecessors, (61), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-05 23:33:16,558 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 125 transitions.
[2024-11-05 23:33:16,559 INFO  L78                 Accepts]: Start accepts. Automaton has 86 states and 125 transitions. Word has length 103
[2024-11-05 23:33:16,559 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:33:16,559 INFO  L471      AbstractCegarLoop]: Abstraction has 86 states and 125 transitions.
[2024-11-05 23:33:16,559 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-05 23:33:16,560 INFO  L276                IsEmpty]: Start isEmpty. Operand 86 states and 125 transitions.
[2024-11-05 23:33:16,561 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2024-11-05 23:33:16,561 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:16,563 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:16,571 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
[2024-11-05 23:33:16,763 WARN  L453      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
[2024-11-05 23:33:16,764 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:16,765 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:16,765 INFO  L85        PathProgramCache]: Analyzing trace with hash -1359779325, now seen corresponding path program 1 times
[2024-11-05 23:33:16,765 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:16,765 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213347975]
[2024-11-05 23:33:16,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:16,766 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
[2024-11-05 23:33:16,766 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:16,769 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)
[2024-11-05 23:33:16,771 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
[2024-11-05 23:33:16,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:16,905 INFO  L255         TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:16,908 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:33:17,639 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 252 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked.
[2024-11-05 23:33:17,639 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 23:33:17,896 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2024-11-05 23:33:17,896 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:33:17,897 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213347975]
[2024-11-05 23:33:17,897 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213347975] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 23:33:17,897 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 23:33:17,897 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2024-11-05 23:33:17,897 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4411147]
[2024-11-05 23:33:17,897 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 23:33:17,898 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-05 23:33:17,898 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:33:17,899 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-05 23:33:17,899 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110
[2024-11-05 23:33:17,900 INFO  L87              Difference]: Start difference. First operand 86 states and 125 transitions. Second operand  has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32)
[2024-11-05 23:33:18,652 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:33:18,652 INFO  L93              Difference]: Finished difference Result 200 states and 271 transitions.
[2024-11-05 23:33:18,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-05 23:33:18,653 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 103
[2024-11-05 23:33:18,654 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:33:18,655 INFO  L225             Difference]: With dead ends: 200
[2024-11-05 23:33:18,655 INFO  L226             Difference]: Without dead ends: 156
[2024-11-05 23:33:18,659 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506
[2024-11-05 23:33:18,660 INFO  L432           NwaCegarLoop]: 75 mSDtfsCounter, 125 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-05 23:33:18,661 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 229 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-05 23:33:18,661 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156 states.
[2024-11-05 23:33:18,682 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 121.
[2024-11-05 23:33:18,682 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 121 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 77 states have internal predecessors, (89), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-05 23:33:18,684 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 165 transitions.
[2024-11-05 23:33:18,684 INFO  L78                 Accepts]: Start accepts. Automaton has 121 states and 165 transitions. Word has length 103
[2024-11-05 23:33:18,684 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:33:18,685 INFO  L471      AbstractCegarLoop]: Abstraction has 121 states and 165 transitions.
[2024-11-05 23:33:18,685 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32)
[2024-11-05 23:33:18,685 INFO  L276                IsEmpty]: Start isEmpty. Operand 121 states and 165 transitions.
[2024-11-05 23:33:18,686 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2024-11-05 23:33:18,687 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:18,687 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:18,695 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
[2024-11-05 23:33:18,887 WARN  L453      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
[2024-11-05 23:33:18,888 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:18,888 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:18,888 INFO  L85        PathProgramCache]: Analyzing trace with hash 167926579, now seen corresponding path program 1 times
[2024-11-05 23:33:18,889 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:18,889 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095198390]
[2024-11-05 23:33:18,889 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:18,889 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
[2024-11-05 23:33:18,889 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:18,891 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)
[2024-11-05 23:33:18,893 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 (6)] Waiting until timeout for monitored process
[2024-11-05 23:33:18,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:18,983 INFO  L255         TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:18,986 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:33:19,332 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 123 proven. 39 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked.
[2024-11-05 23:33:19,332 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 23:33:19,562 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:33:19,562 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095198390]
[2024-11-05 23:33:19,562 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095198390] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-05 23:33:19,562 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1114090554]
[2024-11-05 23:33:19,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:19,563 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-05 23:33:19,563 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-05 23:33:19,580 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-05 23:33:19,582 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process
[2024-11-05 23:33:19,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:19,821 INFO  L255         TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:19,825 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:33:55,998 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-05 23:33:55,999 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:33:55,999 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1114090554] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:33:55,999 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-05 23:33:55,999 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 18
[2024-11-05 23:33:55,999 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574858731]
[2024-11-05 23:33:55,999 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:33:56,000 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-05 23:33:56,000 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:33:56,000 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-05 23:33:56,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462
[2024-11-05 23:33:56,001 INFO  L87              Difference]: Start difference. First operand 121 states and 165 transitions. Second operand  has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-05 23:33:56,507 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:33:56,507 INFO  L93              Difference]: Finished difference Result 151 states and 199 transitions.
[2024-11-05 23:33:56,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-05 23:33:56,508 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104
[2024-11-05 23:33:56,508 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:33:56,511 INFO  L225             Difference]: With dead ends: 151
[2024-11-05 23:33:56,511 INFO  L226             Difference]: Without dead ends: 149
[2024-11-05 23:33:56,512 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552
[2024-11-05 23:33:56,513 INFO  L432           NwaCegarLoop]: 56 mSDtfsCounter, 41 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-05 23:33:56,513 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 329 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-05 23:33:56,514 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 149 states.
[2024-11-05 23:33:56,531 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 127.
[2024-11-05 23:33:56,532 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 127 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 83 states have internal predecessors, (97), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-05 23:33:56,533 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 173 transitions.
[2024-11-05 23:33:56,533 INFO  L78                 Accepts]: Start accepts. Automaton has 127 states and 173 transitions. Word has length 104
[2024-11-05 23:33:56,534 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:33:56,534 INFO  L471      AbstractCegarLoop]: Abstraction has 127 states and 173 transitions.
[2024-11-05 23:33:56,534 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-05 23:33:56,534 INFO  L276                IsEmpty]: Start isEmpty. Operand 127 states and 173 transitions.
[2024-11-05 23:33:56,539 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2024-11-05 23:33:56,539 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:56,539 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:56,546 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0
[2024-11-05 23:33:56,747 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 (6)] Ended with exit code 0
[2024-11-05 23:33:56,940 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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
[2024-11-05 23:33:56,941 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:56,942 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:56,942 INFO  L85        PathProgramCache]: Analyzing trace with hash 169773621, now seen corresponding path program 1 times
[2024-11-05 23:33:56,942 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:56,943 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592376680]
[2024-11-05 23:33:56,943 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:56,943 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
[2024-11-05 23:33:56,943 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:56,944 INFO  L229       MonitoredProcess]: Starting monitored process 8 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)
[2024-11-05 23:33:56,945 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 (8)] Waiting until timeout for monitored process
[2024-11-05 23:33:57,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:57,047 INFO  L255         TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:57,050 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:34:02,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 123 proven. 39 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked.
[2024-11-05 23:34:02,164 INFO  L311         TraceCheckSpWp]: Computing backward predicates...