/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 FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-40.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:06:21,677 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:06:21,733 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 08:06:21,736 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:06:21,737 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:06:21,756 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:06:21,757 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:06:21,758 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:06:21,758 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:06:21,761 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:06:21,761 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:06:21,761 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:06:21,761 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:06:21,761 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:06:21,761 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:06:21,762 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:06:21,762 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:06:21,762 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:06:21,762 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:06:21,762 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:06:21,762 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:06:21,763 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:06:21,764 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:06:21,764 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:06:21,764 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:06:21,764 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:06:21,764 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:06:21,764 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:06:21,764 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:06:21,765 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:06:21,765 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:06:21,765 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:06:21,765 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:06:21,765 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:06:21,765 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:06:21,765 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:06:21,766 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:06:21,766 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:06:21,766 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:06:21,766 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:06:21,766 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:06:21,767 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:06:21,767 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:06:21,767 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:06:21,767 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:06:21,933 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:06:21,949 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:06:21,952 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:06:21,953 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:06:21,953 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:06:21,954 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-40.i
[2024-11-06 08:06:23,174 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:06:23,339 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:06:23,339 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-40.i
[2024-11-06 08:06:23,346 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e94081ec5/18fea506b6424e3fa8989a9092b2a90a/FLAGe0ed44374
[2024-11-06 08:06:23,356 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e94081ec5/18fea506b6424e3fa8989a9092b2a90a
[2024-11-06 08:06:23,358 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:06:23,359 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:06:23,360 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:06:23,360 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:06:23,364 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:06:23,364 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,365 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f7d294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23, skipping insertion in model container
[2024-11-06 08:06:23,365 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,393 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:06:23,523 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_amount100_file-40.i[916,929]
[2024-11-06 08:06:23,574 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:06:23,590 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:06:23,600 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_amount100_file-40.i[916,929]
[2024-11-06 08:06:23,631 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:06:23,646 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:06:23,646 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23 WrapperNode
[2024-11-06 08:06:23,647 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:06:23,647 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:06:23,647 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:06:23,648 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:06:23,652 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,666 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,686 INFO  L138                Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 224
[2024-11-06 08:06:23,687 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:06:23,687 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:06:23,687 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:06:23,687 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:06:23,695 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,695 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,702 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,712 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].
[2024-11-06 08:06:23,712 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,713 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,724 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,727 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,729 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,730 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,734 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:06:23,734 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:06:23,734 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:06:23,735 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:06:23,735 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (1/1) ...
[2024-11-06 08:06:23,745 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:06:23,754 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:06:23,765 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)
[2024-11-06 08:06:23,766 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
[2024-11-06 08:06:23,786 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:06:23,787 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:06:23,787 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:06:23,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:06:23,787 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:06:23,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:06:23,863 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:06:23,865 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:06:33,655 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-06 08:06:33,656 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:06:33,666 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:06:33,667 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:06:33,667 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:06:33 BoogieIcfgContainer
[2024-11-06 08:06:33,667 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:06:33,669 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:06:33,669 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:06:33,671 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:06:33,671 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:06:23" (1/3) ...
[2024-11-06 08:06:33,672 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55610588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:06:33, skipping insertion in model container
[2024-11-06 08:06:33,672 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:23" (2/3) ...
[2024-11-06 08:06:33,672 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55610588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:06:33, skipping insertion in model container
[2024-11-06 08:06:33,672 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:06:33" (3/3) ...
[2024-11-06 08:06:33,673 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-40.i
[2024-11-06 08:06:33,689 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:06:33,689 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:06:33,728 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:06:33,732 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;@791bc8af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:06:33,732 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:06:33,735 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 105 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 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)
[2024-11-06 08:06:33,747 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 223
[2024-11-06 08:06:33,747 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:06:33,748 INFO  L215           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, 1]
[2024-11-06 08:06:33,748 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:06:33,751 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:06:33,752 INFO  L85        PathProgramCache]: Analyzing trace with hash -426897818, now seen corresponding path program 1 times
[2024-11-06 08:06:33,761 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:06:33,762 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902216600]
[2024-11-06 08:06:33,762 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:06:33,762 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
[2024-11-06 08:06:33,762 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:06:33,764 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)
[2024-11-06 08:06:33,765 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
[2024-11-06 08:06:34,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:06:34,430 INFO  L255         TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:06:34,439 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:06:34,494 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 740 proven. 0 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked.
[2024-11-06 08:06:34,494 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:06:34,495 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:06:34,495 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902216600]
[2024-11-06 08:06:34,495 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [902216600] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:06:34,495 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:06:34,496 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:06:34,500 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584262012]
[2024-11-06 08:06:34,501 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:06:34,505 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:06:34,505 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:06:34,524 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:06:34,525 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:06:34,527 INFO  L87              Difference]: Start difference. First operand  has 105 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 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 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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)
[2024-11-06 08:06:34,558 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:06:34,559 INFO  L93              Difference]: Finished difference Result 203 states and 359 transitions.
[2024-11-06 08:06:34,559 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:06:34,560 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 222
[2024-11-06 08:06:34,561 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:06:34,566 INFO  L225             Difference]: With dead ends: 203
[2024-11-06 08:06:34,566 INFO  L226             Difference]: Without dead ends: 101
[2024-11-06 08:06:34,571 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:06:34,574 INFO  L432           NwaCegarLoop]: 158 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, 158 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
[2024-11-06 08:06:34,575 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:06:34,587 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2024-11-06 08:06:34,606 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2024-11-06 08:06:34,607 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 101 states, 64 states have (on average 1.375) internal successors, (88), 64 states have internal predecessors, (88), 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)
[2024-11-06 08:06:34,608 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions.
[2024-11-06 08:06:34,610 INFO  L78                 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 222
[2024-11-06 08:06:34,610 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:06:34,610 INFO  L471      AbstractCegarLoop]: Abstraction has 101 states and 158 transitions.
[2024-11-06 08:06:34,610 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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)
[2024-11-06 08:06:34,611 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions.
[2024-11-06 08:06:34,616 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 223
[2024-11-06 08:06:34,616 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:06:34,617 INFO  L215           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, 1]
[2024-11-06 08:06:34,643 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
[2024-11-06 08:06:34,817 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
[2024-11-06 08:06:34,818 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:06:34,818 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:06:34,819 INFO  L85        PathProgramCache]: Analyzing trace with hash -1744662344, now seen corresponding path program 1 times
[2024-11-06 08:06:34,820 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:06:34,820 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220007491]
[2024-11-06 08:06:34,820 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:06:34,820 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
[2024-11-06 08:06:34,820 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:06:34,822 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)
[2024-11-06 08:06:34,827 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
[2024-11-06 08:06:35,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:06:35,485 INFO  L255         TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-06 08:06:35,492 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:06:43,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 1254 proven. 204 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked.
[2024-11-06 08:06:43,946 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:06:44,235 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:06:44,236 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220007491]
[2024-11-06 08:06:44,236 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [220007491] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:06:44,236 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482023016]
[2024-11-06 08:06:44,237 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:06:44,237 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:06:44,237 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:06:44,256 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:06:44,257 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-06 08:06:44,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:06:44,709 INFO  L255         TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 08:06:44,716 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:06:44,968 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2024-11-06 08:06:44,969 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:06:44,969 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482023016] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:06:44,969 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-06 08:06:44,969 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15
[2024-11-06 08:06:44,970 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78898368]
[2024-11-06 08:06:44,970 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:06:44,970 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 08:06:44,970 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:06:44,971 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 08:06:44,971 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240
[2024-11-06 08:06:44,971 INFO  L87              Difference]: Start difference. First operand 101 states and 158 transitions. Second operand  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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)
[2024-11-06 08:06:49,389 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:06:53,392 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:06:53,486 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:06:53,486 INFO  L93              Difference]: Finished difference Result 250 states and 391 transitions.
[2024-11-06 08:06:53,486 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 08:06:53,486 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 222
[2024-11-06 08:06:53,487 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:06:53,491 INFO  L225             Difference]: With dead ends: 250
[2024-11-06 08:06:53,491 INFO  L226             Difference]: Without dead ends: 152
[2024-11-06 08:06:53,492 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240
[2024-11-06 08:06:53,493 INFO  L432           NwaCegarLoop]: 205 mSDtfsCounter, 72 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time
[2024-11-06 08:06:53,493 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 343 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time]
[2024-11-06 08:06:53,494 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 152 states.
[2024-11-06 08:06:53,506 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 149.
[2024-11-06 08:06:53,506 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 149 states, 100 states have (on average 1.39) internal successors, (139), 101 states have internal predecessors, (139), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-06 08:06:53,507 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 231 transitions.
[2024-11-06 08:06:53,507 INFO  L78                 Accepts]: Start accepts. Automaton has 149 states and 231 transitions. Word has length 222
[2024-11-06 08:06:53,508 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:06:53,508 INFO  L471      AbstractCegarLoop]: Abstraction has 149 states and 231 transitions.
[2024-11-06 08:06:53,508 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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)
[2024-11-06 08:06:53,508 INFO  L276                IsEmpty]: Start isEmpty. Operand 149 states and 231 transitions.
[2024-11-06 08:06:53,512 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 224
[2024-11-06 08:06:53,512 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:06:53,512 INFO  L215           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, 1, 1]
[2024-11-06 08:06:53,538 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
[2024-11-06 08:06:53,760 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-06 08:06:53,913 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=3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:06:53,913 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:06:53,914 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:06:53,914 INFO  L85        PathProgramCache]: Analyzing trace with hash 1732120886, now seen corresponding path program 1 times
[2024-11-06 08:06:53,915 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:06:53,915 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904807326]
[2024-11-06 08:06:53,915 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:06:53,915 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
[2024-11-06 08:06:53,915 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:06:53,918 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)
[2024-11-06 08:06:53,918 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
[2024-11-06 08:06:54,486 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:06:54,515 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-06 08:06:54,520 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:07:04,404 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 1254 proven. 204 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked.
[2024-11-06 08:07:04,404 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:07:04,729 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:07:04,729 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904807326]
[2024-11-06 08:07:04,729 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [904807326] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:07:04,729 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775652236]
[2024-11-06 08:07:04,729 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:07:04,730 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:07:04,730 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:07:04,732 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:07:04,732 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-06 08:07:18,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:07:18,195 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-06 08:07:18,199 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:07:26,093 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 1254 proven. 204 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked.
[2024-11-06 08:07:26,094 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:07:26,197 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775652236] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:07:26,197 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:07:26,197 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14
[2024-11-06 08:07:26,197 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239550904]
[2024-11-06 08:07:26,197 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:07:26,198 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-06 08:07:26,198 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:07:26,202 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-06 08:07:26,203 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2024-11-06 08:07:26,203 INFO  L87              Difference]: Start difference. First operand 149 states and 231 transitions. Second operand  has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35)
[2024-11-06 08:07:35,671 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:39,673 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:43,682 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:47,685 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:51,694 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:55,700 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:59,712 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:08:03,718 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:08:07,725 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:08:07,879 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:08:07,879 INFO  L93              Difference]: Finished difference Result 315 states and 475 transitions.
[2024-11-06 08:08:07,880 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-06 08:08:07,880 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) Word has length 223
[2024-11-06 08:08:07,881 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:08:07,884 INFO  L225             Difference]: With dead ends: 315
[2024-11-06 08:08:07,884 INFO  L226             Difference]: Without dead ends: 169
[2024-11-06 08:08:07,885 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306
[2024-11-06 08:08:07,886 INFO  L432           NwaCegarLoop]: 113 mSDtfsCounter, 218 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 80 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.1s IncrementalHoareTripleChecker+Time
[2024-11-06 08:08:07,886 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 500 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 441 Invalid, 9 Unknown, 0 Unchecked, 41.1s Time]
[2024-11-06 08:08:07,890 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 169 states.
[2024-11-06 08:08:07,910 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165.
[2024-11-06 08:08:07,911 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 165 states, 112 states have (on average 1.3392857142857142) internal successors, (150), 113 states have internal predecessors, (150), 46 states have call successors, (46), 6 states have call predecessors, (46), 6 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-06 08:08:07,913 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 242 transitions.
[2024-11-06 08:08:07,914 INFO  L78                 Accepts]: Start accepts. Automaton has 165 states and 242 transitions. Word has length 223
[2024-11-06 08:08:07,914 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:08:07,914 INFO  L471      AbstractCegarLoop]: Abstraction has 165 states and 242 transitions.
[2024-11-06 08:08:07,915 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35)
[2024-11-06 08:08:07,915 INFO  L276                IsEmpty]: Start isEmpty. Operand 165 states and 242 transitions.
[2024-11-06 08:08:07,917 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 225
[2024-11-06 08:08:07,918 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:08:07,918 INFO  L215           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, 1, 1, 1]
[2024-11-06 08:08:07,944 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
[2024-11-06 08:08:08,182 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-06 08:08:08,319 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:08:08,319 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:08:08,320 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:08:08,320 INFO  L85        PathProgramCache]: Analyzing trace with hash -1076681360, now seen corresponding path program 1 times
[2024-11-06 08:08:08,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:08:08,320 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442425537]
[2024-11-06 08:08:08,320 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:08:08,321 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
[2024-11-06 08:08:08,321 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:08:08,322 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)
[2024-11-06 08:08:08,323 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
[2024-11-06 08:08:09,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:08:09,935 INFO  L255         TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 69 conjuncts are in the unsatisfiable core
[2024-11-06 08:08:09,942 INFO  L278         TraceCheckSpWp]: Computing forward predicates...