/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_amount250_file-84.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:29:22,704 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:29:22,780 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 08:29:22,787 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:29:22,788 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:29:22,817 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:29:22,817 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:29:22,817 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:29:22,818 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:29:22,818 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:29:22,819 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:29:22,819 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:29:22,820 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:29:22,820 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:29:22,821 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:29:22,822 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:29:22,823 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:29:22,825 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:29:22,825 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:29:22,825 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:29:22,825 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:29:22,827 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:29:22,827 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:29:22,827 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:29:22,827 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:29:22,827 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:29:22,828 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:29:22,828 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:29:22,828 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:29:22,828 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:29:22,829 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:29:22,829 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:29:22,829 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:29:22,829 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:29:22,829 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:29:22,830 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:29:22,830 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:29:22,831 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:29:22,831 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:29:22,832 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:29:22,832 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:29:22,832 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:29:22,832 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:29:22,832 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:29:22,833 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:29:23,069 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:29:23,093 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:29:23,096 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:29:23,097 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:29:23,097 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:29:23,098 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-84.i
[2024-11-06 08:29:24,561 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:29:24,782 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:29:24,783 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-84.i
[2024-11-06 08:29:24,799 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87dcd4a76/ecab45a9fa5d4016984b9da6866e8232/FLAG62b4ee5e9
[2024-11-06 08:29:24,810 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87dcd4a76/ecab45a9fa5d4016984b9da6866e8232
[2024-11-06 08:29:24,813 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:29:24,814 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:29:24,815 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:29:24,816 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:29:24,822 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:29:24,823 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:24" (1/1) ...
[2024-11-06 08:29:24,824 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9db30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24, skipping insertion in model container
[2024-11-06 08:29:24,824 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:24" (1/1) ...
[2024-11-06 08:29:24,867 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:29:25,022 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_amount250_file-84.i[916,929]
[2024-11-06 08:29:25,180 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:29:25,199 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:29:25,211 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_amount250_file-84.i[916,929]
[2024-11-06 08:29:25,280 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:29:25,305 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:29:25,306 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25 WrapperNode
[2024-11-06 08:29:25,306 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:29:25,309 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:29:25,309 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:29:25,309 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:29:25,315 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,335 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,372 INFO  L138                Inliner]: procedures = 27, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 327
[2024-11-06 08:29:25,373 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:29:25,373 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:29:25,374 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:29:25,374 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:29:25,386 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,387 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,394 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,415 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 08:29:25,416 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,416 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,434 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,438 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,443 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,446 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,461 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:29:25,462 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:29:25,462 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:29:25,462 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:29:25,467 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (1/1) ...
[2024-11-06 08:29:25,476 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:29:25,487 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:29:25,503 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 08:29:25,506 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 08:29:25,533 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:29:25,533 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:29:25,533 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:29:25,533 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:29:25,533 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:29:25,534 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:29:25,654 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:29:25,657 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:29:57,767 INFO  L?                        ?]: Removed 40 outVars from TransFormulas that were not future-live.
[2024-11-06 08:29:57,767 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:29:57,786 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:29:57,787 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:29:57,787 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:57 BoogieIcfgContainer
[2024-11-06 08:29:57,787 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:29:57,791 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:29:57,792 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:29:57,795 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:29:57,795 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:29:24" (1/3) ...
[2024-11-06 08:29:57,796 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f083a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:57, skipping insertion in model container
[2024-11-06 08:29:57,796 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:25" (2/3) ...
[2024-11-06 08:29:57,796 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f083a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:57, skipping insertion in model container
[2024-11-06 08:29:57,797 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:57" (3/3) ...
[2024-11-06 08:29:57,798 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-84.i
[2024-11-06 08:29:57,811 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:29:57,811 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:29:57,868 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:29:57,873 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;@6c556f7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:29:57,873 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:29:57,879 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 149 states, 99 states have (on average 1.505050505050505) internal successors, (149), 100 states have internal predecessors, (149), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-06 08:29:57,900 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-06 08:29:57,900 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:29:57,901 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:57,902 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:29:57,906 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:29:57,906 INFO  L85        PathProgramCache]: Analyzing trace with hash 848824431, now seen corresponding path program 1 times
[2024-11-06 08:29:57,919 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:29:57,920 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809050733]
[2024-11-06 08:29:57,920 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:29:57,920 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 08:29:57,921 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:29:57,924 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 08:29:57,925 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 08:29:59,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:29:59,071 INFO  L255         TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:29:59,086 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:30:03,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 2196 proven. 63 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked.
[2024-11-06 08:30:03,721 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:30:08,674 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 75 proven. 63 refuted. 0 times theorem prover too weak. 4186 trivial. 0 not checked.
[2024-11-06 08:30:08,676 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:30:08,676 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809050733]
[2024-11-06 08:30:08,679 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809050733] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 08:30:08,680 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:30:08,680 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-06 08:30:08,682 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132679515]
[2024-11-06 08:30:08,682 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:30:08,688 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-06 08:30:08,688 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:30:08,707 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-06 08:30:08,707 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-06 08:30:08,710 INFO  L87              Difference]: Start difference. First operand  has 149 states, 99 states have (on average 1.505050505050505) internal successors, (149), 100 states have internal predecessors, (149), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69)
[2024-11-06 08:30:17,451 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:30:21,460 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:30:25,470 WARN  L539   Checker$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 08:30:25,472 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:30:25,472 INFO  L93              Difference]: Finished difference Result 292 states and 524 transitions.
[2024-11-06 08:30:25,662 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-06 08:30:25,664 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 303
[2024-11-06 08:30:25,666 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:30:25,675 INFO  L225             Difference]: With dead ends: 292
[2024-11-06 08:30:25,675 INFO  L226             Difference]: Without dead ends: 146
[2024-11-06 08:30:25,681 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 598 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-06 08:30:25,686 INFO  L432           NwaCegarLoop]: 167 mSDtfsCounter, 130 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time
[2024-11-06 08:30:25,688 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 405 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 258 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time]
[2024-11-06 08:30:25,707 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2024-11-06 08:30:25,752 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144.
[2024-11-06 08:30:25,756 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 144 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 94 states have internal predecessors, (131), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-06 08:30:25,760 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 225 transitions.
[2024-11-06 08:30:25,763 INFO  L78                 Accepts]: Start accepts. Automaton has 144 states and 225 transitions. Word has length 303
[2024-11-06 08:30:25,764 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:30:25,765 INFO  L471      AbstractCegarLoop]: Abstraction has 144 states and 225 transitions.
[2024-11-06 08:30:25,765 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69)
[2024-11-06 08:30:25,765 INFO  L276                IsEmpty]: Start isEmpty. Operand 144 states and 225 transitions.
[2024-11-06 08:30:25,771 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-06 08:30:25,771 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:30:25,772 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:25,820 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 08:30:25,975 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 08:30:25,976 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:30:25,977 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:30:25,977 INFO  L85        PathProgramCache]: Analyzing trace with hash -2059939471, now seen corresponding path program 1 times
[2024-11-06 08:30:25,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:30:25,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369268997]
[2024-11-06 08:30:25,982 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:30:25,982 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 08:30:25,982 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:30:25,986 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 08:30:25,987 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 08:30:27,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:30:27,222 INFO  L255         TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-06 08:30:27,231 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:30:42,190 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 1452 proven. 27 refuted. 0 times theorem prover too weak. 2845 trivial. 0 not checked.
[2024-11-06 08:30:42,191 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:30:45,230 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:30:45,230 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369268997]
[2024-11-06 08:30:45,230 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369268997] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:30:45,230 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132164573]
[2024-11-06 08:30:45,230 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:30:45,231 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:30:45,231 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:30:45,247 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 08:30:45,248 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 08:30:46,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:30:46,172 INFO  L255         TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 08:30:46,179 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:30:47,621 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-06 08:30:47,621 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:30:47,621 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132164573] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:30:47,621 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-06 08:30:47,622 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8
[2024-11-06 08:30:47,622 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70472269]
[2024-11-06 08:30:47,623 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:30:47,624 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 08:30:47,624 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:30:47,624 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 08:30:47,625 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2024-11-06 08:30:47,625 INFO  L87              Difference]: Start difference. First operand 144 states and 225 transitions. Second operand  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-06 08:30:52,277 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:30:56,932 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:30:56,948 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:30:56,949 INFO  L93              Difference]: Finished difference Result 425 states and 667 transitions.
[2024-11-06 08:30:57,132 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 08:30:57,132 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 303
[2024-11-06 08:30:57,134 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:30:57,137 INFO  L225             Difference]: With dead ends: 425
[2024-11-06 08:30:57,137 INFO  L226             Difference]: Without dead ends: 284
[2024-11-06 08:30:57,139 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2024-11-06 08:30:57,140 INFO  L432           NwaCegarLoop]: 218 mSDtfsCounter, 185 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time
[2024-11-06 08:30:57,140 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 425 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time]
[2024-11-06 08:30:57,141 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 284 states.
[2024-11-06 08:30:57,172 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 280.
[2024-11-06 08:30:57,173 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 280 states, 181 states have (on average 1.3701657458563536) internal successors, (248), 181 states have internal predecessors, (248), 94 states have call successors, (94), 4 states have call predecessors, (94), 4 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94)
[2024-11-06 08:30:57,175 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 436 transitions.
[2024-11-06 08:30:57,176 INFO  L78                 Accepts]: Start accepts. Automaton has 280 states and 436 transitions. Word has length 303
[2024-11-06 08:30:57,177 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:30:57,177 INFO  L471      AbstractCegarLoop]: Abstraction has 280 states and 436 transitions.
[2024-11-06 08:30:57,177 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-06 08:30:57,177 INFO  L276                IsEmpty]: Start isEmpty. Operand 280 states and 436 transitions.
[2024-11-06 08:30:57,182 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-06 08:30:57,182 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:30:57,182 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:57,232 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
[2024-11-06 08:30:57,489 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-06 08:30:57,583 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 08:30:57,583 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:30:57,584 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:30:57,584 INFO  L85        PathProgramCache]: Analyzing trace with hash -284932109, now seen corresponding path program 1 times
[2024-11-06 08:30:57,585 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:30:57,586 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633926627]
[2024-11-06 08:30:57,586 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:30:57,586 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 08:30:57,586 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:30:57,589 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 08:30:57,591 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 08:30:58,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:30:58,704 INFO  L255         TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-06 08:30:58,710 INFO  L278         TraceCheckSpWp]: Computing forward predicates...