/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-30.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 06:44:46,479 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 06:44:46,556 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-24 06:44:46,561 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 06:44:46,561 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 06:44:46,589 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 06:44:46,589 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 06:44:46,589 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 06:44:46,590 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 06:44:46,590 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 06:44:46,590 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 06:44:46,590 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 06:44:46,591 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 06:44:46,591 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 06:44:46,591 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 06:44:46,591 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 06:44:46,592 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 06:44:46,594 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 06:44:46,594 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 06:44:46,594 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 06:44:46,598 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 06:44:46,598 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 06:44:46,598 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 06:44:46,598 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 06:44:46,599 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 06:44:46,599 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 06:44:46,599 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 06:44:46,599 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 06:44:46,599 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 06:44:46,599 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 06:44:46,600 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 06:44:46,600 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 06:44:46,601 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 06:44:46,601 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 06:44:46,601 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 06:44:46,601 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 06:44:46,601 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 06:44:46,601 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 06:44:46,601 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 06:44:46,601 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 06:44:46,601 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 06:44:46,602 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 06:44:46,602 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 06:44:46,602 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 06:44:46,602 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 06:44:46,602 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 06:44:46,602 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 06:44:46,821 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 06:44:46,838 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 06:44:46,840 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 06:44:46,841 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 06:44:46,841 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 06:44:46,843 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-30.i
[2023-12-24 06:44:47,953 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 06:44:48,161 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 06:44:48,162 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-30.i
[2023-12-24 06:44:48,173 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f20edd036/5d5dec353ef64f18bb946d318bcfa4ef/FLAG300c20135
[2023-12-24 06:44:48,185 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f20edd036/5d5dec353ef64f18bb946d318bcfa4ef
[2023-12-24 06:44:48,187 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 06:44:48,188 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 06:44:48,191 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 06:44:48,191 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 06:44:48,195 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 06:44:48,196 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,197 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b46c627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48, skipping insertion in model container
[2023-12-24 06:44:48,197 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,237 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 06:44:48,339 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-30.i[916,929]
[2023-12-24 06:44:48,490 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 06:44:48,513 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 06:44:48,530 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-30.i[916,929]
[2023-12-24 06:44:48,573 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 06:44:48,586 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 06:44:48,587 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48 WrapperNode
[2023-12-24 06:44:48,587 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 06:44:48,588 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 06:44:48,588 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 06:44:48,588 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 06:44:48,593 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,608 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,639 INFO  L138                Inliner]: procedures = 27, calls = 65, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 342
[2023-12-24 06:44:48,639 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 06:44:48,640 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 06:44:48,640 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 06:44:48,640 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 06:44:48,657 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,657 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,669 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,699 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-24 06:44:48,699 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,699 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,724 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,728 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,735 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,738 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,743 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 06:44:48,744 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 06:44:48,744 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 06:44:48,744 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 06:44:48,745 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (1/1) ...
[2023-12-24 06:44:48,766 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 06:44:48,774 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 06:44:48,785 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-24 06:44:48,817 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-24 06:44:48,823 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 06:44:48,823 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 06:44:48,823 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 06:44:48,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 06:44:48,824 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 06:44:48,824 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 06:44:48,943 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 06:44:48,945 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 06:44:56,275 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 06:44:56,346 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 06:44:56,346 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 06:44:56,347 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:44:56 BoogieIcfgContainer
[2023-12-24 06:44:56,347 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 06:44:56,349 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 06:44:56,349 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 06:44:56,351 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 06:44:56,351 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 06:44:48" (1/3) ...
[2023-12-24 06:44:56,352 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a2656d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:44:56, skipping insertion in model container
[2023-12-24 06:44:56,353 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:44:48" (2/3) ...
[2023-12-24 06:44:56,353 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a2656d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:44:56, skipping insertion in model container
[2023-12-24 06:44:56,353 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:44:56" (3/3) ...
[2023-12-24 06:44:56,354 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-30.i
[2023-12-24 06:44:56,368 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 06:44:56,369 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 06:44:56,410 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 06:44:56,415 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ad4574a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 06:44:56,415 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 06:44:56,424 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 141 states, 86 states have (on average 1.5) internal successors, (129), 87 states have internal predecessors, (129), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-24 06:44:56,471 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 325
[2023-12-24 06:44:56,472 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 06:44:56,473 INFO  L195           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 06:44:56,473 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 06:44:56,477 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 06:44:56,478 INFO  L85        PathProgramCache]: Analyzing trace with hash -1417394118, now seen corresponding path program 1 times
[2023-12-24 06:44:56,488 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 06:44:56,489 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714783909]
[2023-12-24 06:44:56,489 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 06:44:56,489 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 06:44:56,490 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 06:44:56,492 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 06:44:56,516 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-24 06:44:57,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 06:44:57,224 INFO  L262         TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 06:44:57,236 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 06:44:57,295 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 854 proven. 0 refuted. 0 times theorem prover too weak. 4450 trivial. 0 not checked.
[2023-12-24 06:44:57,296 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 06:44:57,296 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 06:44:57,297 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714783909]
[2023-12-24 06:44:57,297 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [714783909] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 06:44:57,297 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 06:44:57,297 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 06:44:57,299 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115043848]
[2023-12-24 06:44:57,299 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 06:44:57,303 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 06:44:57,303 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 06:44:57,325 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 06:44:57,326 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 06:44:57,329 INFO  L87              Difference]: Start difference. First operand  has 141 states, 86 states have (on average 1.5) internal successors, (129), 87 states have internal predecessors, (129), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand  has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52)
[2023-12-24 06:45:01,646 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 06:45:01,647 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 06:45:01,647 INFO  L93              Difference]: Finished difference Result 279 states and 516 transitions.
[2023-12-24 06:45:01,741 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 06:45:01,742 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 324
[2023-12-24 06:45:01,743 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 06:45:01,749 INFO  L225             Difference]: With dead ends: 279
[2023-12-24 06:45:01,749 INFO  L226             Difference]: Without dead ends: 139
[2023-12-24 06:45:01,752 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 06:45:01,755 INFO  L413           NwaCegarLoop]: 224 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2023-12-24 06:45:01,755 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 224 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time]
[2023-12-24 06:45:01,766 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 139 states.
[2023-12-24 06:45:01,788 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139.
[2023-12-24 06:45:01,790 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 139 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 85 states have internal predecessors, (123), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-24 06:45:01,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 227 transitions.
[2023-12-24 06:45:01,792 INFO  L78                 Accepts]: Start accepts. Automaton has 139 states and 227 transitions. Word has length 324
[2023-12-24 06:45:01,793 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 06:45:01,793 INFO  L495      AbstractCegarLoop]: Abstraction has 139 states and 227 transitions.
[2023-12-24 06:45:01,793 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52)
[2023-12-24 06:45:01,793 INFO  L276                IsEmpty]: Start isEmpty. Operand 139 states and 227 transitions.
[2023-12-24 06:45:01,797 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 327
[2023-12-24 06:45:01,797 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 06:45:01,797 INFO  L195           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 06:45:01,819 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-24 06:45:02,018 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 06:45:02,019 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 06:45:02,020 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 06:45:02,020 INFO  L85        PathProgramCache]: Analyzing trace with hash -2121463794, now seen corresponding path program 1 times
[2023-12-24 06:45:02,021 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 06:45:02,021 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635922029]
[2023-12-24 06:45:02,021 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 06:45:02,021 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 06:45:02,022 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 06:45:02,026 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 06:45:02,032 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-24 06:45:02,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 06:45:02,860 INFO  L262         TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-24 06:45:02,869 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 06:45:06,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2023-12-24 06:45:06,029 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 06:45:06,029 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 06:45:06,033 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635922029]
[2023-12-24 06:45:06,034 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [635922029] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 06:45:06,034 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 06:45:06,048 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-24 06:45:06,048 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387884228]
[2023-12-24 06:45:06,048 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 06:45:06,052 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-24 06:45:06,052 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 06:45:06,054 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-24 06:45:06,054 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-24 06:45:06,054 INFO  L87              Difference]: Start difference. First operand 139 states and 227 transitions. Second operand  has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2023-12-24 06:45:12,670 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 06:45:16,679 WARN  L539   Checker$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 []
[2023-12-24 06:45:20,689 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 06:45:25,057 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 06:45:29,061 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 06:45:33,067 WARN  L539   Checker$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 []
[2023-12-24 06:45:33,067 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 06:45:33,068 INFO  L93              Difference]: Finished difference Result 467 states and 766 transitions.
[2023-12-24 06:45:33,175 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-24 06:45:33,176 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 326
[2023-12-24 06:45:33,177 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 06:45:33,179 INFO  L225             Difference]: With dead ends: 467
[2023-12-24 06:45:33,180 INFO  L226             Difference]: Without dead ends: 329
[2023-12-24 06:45:33,180 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-24 06:45:33,181 INFO  L413           NwaCegarLoop]: 305 mSDtfsCounter, 209 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 105 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time
[2023-12-24 06:45:33,182 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 747 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 26.9s Time]
[2023-12-24 06:45:33,182 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 329 states.
[2023-12-24 06:45:33,287 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 275.
[2023-12-24 06:45:33,289 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 275 states, 168 states have (on average 1.4464285714285714) internal successors, (243), 168 states have internal predecessors, (243), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104)
[2023-12-24 06:45:33,293 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 451 transitions.
[2023-12-24 06:45:33,293 INFO  L78                 Accepts]: Start accepts. Automaton has 275 states and 451 transitions. Word has length 326
[2023-12-24 06:45:33,296 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 06:45:33,296 INFO  L495      AbstractCegarLoop]: Abstraction has 275 states and 451 transitions.
[2023-12-24 06:45:33,296 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2023-12-24 06:45:33,297 INFO  L276                IsEmpty]: Start isEmpty. Operand 275 states and 451 transitions.
[2023-12-24 06:45:33,302 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 327
[2023-12-24 06:45:33,303 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 06:45:33,303 INFO  L195           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 06:45:33,348 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-24 06:45:33,529 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 06:45:33,530 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 06:45:33,530 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 06:45:33,530 INFO  L85        PathProgramCache]: Analyzing trace with hash 1779136716, now seen corresponding path program 1 times
[2023-12-24 06:45:33,531 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 06:45:33,531 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412415340]
[2023-12-24 06:45:33,531 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 06:45:33,531 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 06:45:33,531 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 06:45:33,534 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 06:45:33,536 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-24 06:45:34,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 06:45:34,343 INFO  L262         TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 06:45:34,349 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 06:45:36,974 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 2241 proven. 108 refuted. 0 times theorem prover too weak. 2955 trivial. 0 not checked.
[2023-12-24 06:45:36,975 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 06:45:38,272 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 45 proven. 108 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked.
[2023-12-24 06:45:38,273 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 06:45:38,273 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412415340]
[2023-12-24 06:45:38,273 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412415340] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 06:45:38,273 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 06:45:38,273 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-24 06:45:38,273 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017598209]
[2023-12-24 06:45:38,274 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 06:45:38,274 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-24 06:45:38,274 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 06:45:38,275 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-24 06:45:38,275 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-24 06:45:38,275 INFO  L87              Difference]: Start difference. First operand 275 states and 451 transitions. Second operand  has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89)
[2023-12-24 06:45:44,624 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 06:45:48,628 WARN  L539   Checker$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 []
[2023-12-24 06:45:52,632 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 []
[2023-12-24 06:45:52,647 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 06:45:52,647 INFO  L93              Difference]: Finished difference Result 563 states and 911 transitions.
[2023-12-24 06:45:52,762 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-24 06:45:52,762 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 326
[2023-12-24 06:45:52,763 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 06:45:52,766 INFO  L225             Difference]: With dead ends: 563
[2023-12-24 06:45:52,766 INFO  L226             Difference]: Without dead ends: 289
[2023-12-24 06:45:52,767 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 645 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-24 06:45:52,768 INFO  L413           NwaCegarLoop]: 166 mSDtfsCounter, 175 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 41 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time
[2023-12-24 06:45:52,768 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 390 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 275 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time]
[2023-12-24 06:45:52,769 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 289 states.
[2023-12-24 06:45:52,863 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 281.
[2023-12-24 06:45:52,865 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 281 states, 172 states have (on average 1.4127906976744187) internal successors, (243), 172 states have internal predecessors, (243), 104 states have call successors, (104), 4 states have call predecessors, (104), 4 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104)
[2023-12-24 06:45:52,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 451 transitions.
[2023-12-24 06:45:52,867 INFO  L78                 Accepts]: Start accepts. Automaton has 281 states and 451 transitions. Word has length 326
[2023-12-24 06:45:52,868 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 06:45:52,868 INFO  L495      AbstractCegarLoop]: Abstraction has 281 states and 451 transitions.
[2023-12-24 06:45:52,869 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89)
[2023-12-24 06:45:52,869 INFO  L276                IsEmpty]: Start isEmpty. Operand 281 states and 451 transitions.
[2023-12-24 06:45:52,871 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 327
[2023-12-24 06:45:52,871 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 06:45:52,871 INFO  L195           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 06:45:52,899 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-24 06:45:53,087 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 06:45:53,088 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 06:45:53,088 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 06:45:53,088 INFO  L85        PathProgramCache]: Analyzing trace with hash -1346241202, now seen corresponding path program 1 times
[2023-12-24 06:45:53,089 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 06:45:53,089 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19954866]
[2023-12-24 06:45:53,089 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 06:45:53,089 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 06:45:53,089 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 06:45:53,093 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 06:45:53,122 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-24 06:45:53,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 06:45:53,794 INFO  L262         TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-24 06:45:53,799 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 06:45:58,856 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 2722 proven. 177 refuted. 0 times theorem prover too weak. 2405 trivial. 0 not checked.
[2023-12-24 06:45:58,857 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 06:46:01,487 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 123 proven. 180 refuted. 0 times theorem prover too weak. 5001 trivial. 0 not checked.
[2023-12-24 06:46:01,487 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 06:46:01,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19954866]
[2023-12-24 06:46:01,488 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [19954866] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 06:46:01,488 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 06:46:01,488 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13
[2023-12-24 06:46:01,488 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704355147]
[2023-12-24 06:46:01,489 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 06:46:01,489 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-24 06:46:01,489 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 06:46:01,490 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-24 06:46:01,490 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2023-12-24 06:46:01,490 INFO  L87              Difference]: Start difference. First operand 281 states and 451 transitions. Second operand  has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 3 states have call successors, (83), 3 states have call predecessors, (83), 7 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84)
[2023-12-24 06:46:09,574 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 06:46:13,580 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 06:46:17,593 WARN  L539   Checker$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 []
[2023-12-24 06:46:21,600 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 06:46:23,707 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 06:46:23,714 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 06:46:23,714 INFO  L93              Difference]: Finished difference Result 585 states and 921 transitions.
[2023-12-24 06:46:23,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-12-24 06:46:23,824 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 3 states have call successors, (83), 3 states have call predecessors, (83), 7 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) Word has length 326
[2023-12-24 06:46:23,824 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 06:46:23,827 INFO  L225             Difference]: With dead ends: 585
[2023-12-24 06:46:23,827 INFO  L226             Difference]: Without dead ends: 305
[2023-12-24 06:46:23,829 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 640 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=184, Invalid=368, Unknown=0, NotChecked=0, Total=552
[2023-12-24 06:46:23,830 INFO  L413           NwaCegarLoop]: 157 mSDtfsCounter, 371 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 244 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time
[2023-12-24 06:46:23,830 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 566 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 508 Invalid, 4 Unknown, 0 Unchecked, 21.4s Time]
[2023-12-24 06:46:23,831 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 305 states.
[2023-12-24 06:46:23,856 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 297.
[2023-12-24 06:46:23,857 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 297 states, 184 states have (on average 1.3532608695652173) internal successors, (249), 184 states have internal predecessors, (249), 104 states have call successors, (104), 8 states have call predecessors, (104), 8 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104)
[2023-12-24 06:46:23,859 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 457 transitions.
[2023-12-24 06:46:23,859 INFO  L78                 Accepts]: Start accepts. Automaton has 297 states and 457 transitions. Word has length 326
[2023-12-24 06:46:23,859 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 06:46:23,859 INFO  L495      AbstractCegarLoop]: Abstraction has 297 states and 457 transitions.
[2023-12-24 06:46:23,860 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 3 states have call successors, (83), 3 states have call predecessors, (83), 7 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84)
[2023-12-24 06:46:23,860 INFO  L276                IsEmpty]: Start isEmpty. Operand 297 states and 457 transitions.
[2023-12-24 06:46:23,861 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 328
[2023-12-24 06:46:23,862 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 06:46:23,862 INFO  L195           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 06:46:23,886 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-24 06:46:24,063 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 06:46:24,064 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 06:46:24,064 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 06:46:24,065 INFO  L85        PathProgramCache]: Analyzing trace with hash 265321588, now seen corresponding path program 1 times
[2023-12-24 06:46:24,065 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 06:46:24,065 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107671190]
[2023-12-24 06:46:24,065 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 06:46:24,065 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 06:46:24,065 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 06:46:24,068 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 06:46:24,068 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-24 06:46:24,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 06:46:25,021 INFO  L262         TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 40 conjunts are in the unsatisfiable core
[2023-12-24 06:46:25,028 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 06:46:55,578 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 3847 proven. 627 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked.
[2023-12-24 06:46:55,579 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 06:47:03,545 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 06:47:03,546 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107671190]
[2023-12-24 06:47:03,546 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107671190] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 06:47:03,546 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1964753989]
[2023-12-24 06:47:03,546 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 06:47:03,546 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-24 06:47:03,546 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-24 06:47:03,581 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-24 06:47:03,603 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process
[2023-12-24 06:47:05,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 06:47:05,498 INFO  L262         TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 53 conjunts are in the unsatisfiable core
[2023-12-24 06:47:05,512 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 06:48:07,525 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 3738 proven. 777 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked.
[2023-12-24 06:48:07,526 INFO  L327         TraceCheckSpWp]: Computing backward predicates...