/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-97.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 15:57:47,509 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 15:57:47,598 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 15:57:47,604 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 15:57:47,605 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 15:57:47,623 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 15:57:47,624 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 15:57:47,624 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 15:57:47,625 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 15:57:47,628 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 15:57:47,629 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 15:57:47,629 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 15:57:47,629 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 15:57:47,631 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 15:57:47,631 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 15:57:47,631 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 15:57:47,632 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 15:57:47,632 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 15:57:47,632 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 15:57:47,632 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 15:57:47,633 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 15:57:47,634 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 15:57:47,634 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 15:57:47,634 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 15:57:47,634 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 15:57:47,634 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 15:57:47,635 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 15:57:47,635 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 15:57:47,635 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 15:57:47,635 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 15:57:47,636 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 15:57:47,637 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 15:57:47,637 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 15:57:47,637 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 15:57:47,637 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 15:57:47,637 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 15:57:47,637 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 15:57:47,638 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 15:57:47,638 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 15:57:47,638 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 15:57:47,639 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 15:57:47,639 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 15:57:47,639 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 15:57:47,639 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 15:57:47,639 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 15:57:47,640 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 15:57:47,640 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 15:57:47,883 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 15:57:47,902 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 15:57:47,905 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 15:57:47,906 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 15:57:47,906 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 15:57:47,907 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-97.i
[2023-12-23 15:57:48,999 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 15:57:49,211 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 15:57:49,211 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-97.i
[2023-12-23 15:57:49,223 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d25126ce/620391b2e9f84a649998666e034b4e58/FLAGe6145223a
[2023-12-23 15:57:49,238 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d25126ce/620391b2e9f84a649998666e034b4e58
[2023-12-23 15:57:49,240 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 15:57:49,242 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 15:57:49,245 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 15:57:49,245 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 15:57:49,249 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 15:57:49,250 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,250 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6b6fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49, skipping insertion in model container
[2023-12-23 15:57:49,251 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,283 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 15:57:49,428 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-97.i[919,932]
[2023-12-23 15:57:49,531 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 15:57:49,557 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 15:57:49,575 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-97.i[919,932]
[2023-12-23 15:57:49,614 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 15:57:49,632 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 15:57:49,633 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49 WrapperNode
[2023-12-23 15:57:49,633 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 15:57:49,634 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 15:57:49,634 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 15:57:49,634 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 15:57:49,641 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,662 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,689 INFO  L138                Inliner]: procedures = 27, calls = 58, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 246
[2023-12-23 15:57:49,689 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 15:57:49,690 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 15:57:49,690 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 15:57:49,690 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 15:57:49,699 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,699 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,705 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,724 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-23 15:57:49,724 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,724 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,734 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,744 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,746 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,748 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,751 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 15:57:49,756 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 15:57:49,756 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 15:57:49,756 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 15:57:49,757 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (1/1) ...
[2023-12-23 15:57:49,762 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 15:57:49,773 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 15:57:49,801 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-23 15:57:49,830 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-23 15:57:49,838 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 15:57:49,838 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 15:57:49,838 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 15:57:49,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 15:57:49,840 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 15:57:49,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 15:57:49,954 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 15:57:49,956 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 15:57:58,568 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 15:57:58,626 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 15:57:58,626 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 15:57:58,627 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:57:58 BoogieIcfgContainer
[2023-12-23 15:57:58,627 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 15:57:58,629 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 15:57:58,629 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 15:57:58,632 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 15:57:58,632 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:57:49" (1/3) ...
[2023-12-23 15:57:58,632 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca19b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:57:58, skipping insertion in model container
[2023-12-23 15:57:58,632 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:57:49" (2/3) ...
[2023-12-23 15:57:58,633 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca19b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:57:58, skipping insertion in model container
[2023-12-23 15:57:58,633 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:57:58" (3/3) ...
[2023-12-23 15:57:58,634 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-97.i
[2023-12-23 15:57:58,651 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 15:57:58,652 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 15:57:58,692 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 15:57:58,722 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;@36db5880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 15:57:58,722 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 15:57:58,726 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 107 states, 59 states have (on average 1.423728813559322) internal successors, (84), 60 states have internal predecessors, (84), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45)
[2023-12-23 15:57:58,759 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 271
[2023-12-23 15:57:58,759 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:57:58,760 INFO  L195           NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 15:57:58,760 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:57:58,765 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:57:58,765 INFO  L85        PathProgramCache]: Analyzing trace with hash 1990005725, now seen corresponding path program 1 times
[2023-12-23 15:57:58,776 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:57:58,777 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598590978]
[2023-12-23 15:57:58,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:57:58,777 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:57:58,778 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:57:58,780 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 15:57:58,793 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 15:57:59,261 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:57:59,283 INFO  L262         TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 15:57:59,296 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:57:59,372 INFO  L134       CoverageAnalysis]: Checked inductivity of 3960 backedges. 1540 proven. 0 refuted. 0 times theorem prover too weak. 2420 trivial. 0 not checked.
[2023-12-23 15:57:59,372 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:57:59,373 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:57:59,373 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598590978]
[2023-12-23 15:57:59,373 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [598590978] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:57:59,374 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:57:59,374 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 15:57:59,375 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428879513]
[2023-12-23 15:57:59,376 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:57:59,379 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 15:57:59,380 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:57:59,410 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 15:57:59,410 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 15:57:59,412 INFO  L87              Difference]: Start difference. First operand  has 107 states, 59 states have (on average 1.423728813559322) internal successors, (84), 60 states have internal predecessors, (84), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45)
[2023-12-23 15:57:59,472 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:57:59,473 INFO  L93              Difference]: Finished difference Result 211 states and 391 transitions.
[2023-12-23 15:57:59,475 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 15:57:59,477 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 270
[2023-12-23 15:57:59,477 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:57:59,488 INFO  L225             Difference]: With dead ends: 211
[2023-12-23 15:57:59,488 INFO  L226             Difference]: Without dead ends: 105
[2023-12-23 15:57:59,497 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 15:57:59,501 INFO  L413           NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 15:57:59,503 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 15:57:59,517 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 105 states.
[2023-12-23 15:57:59,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105.
[2023-12-23 15:57:59,555 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 105 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 58 states have internal predecessors, (78), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45)
[2023-12-23 15:57:59,557 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 168 transitions.
[2023-12-23 15:57:59,559 INFO  L78                 Accepts]: Start accepts. Automaton has 105 states and 168 transitions. Word has length 270
[2023-12-23 15:57:59,559 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:57:59,559 INFO  L495      AbstractCegarLoop]: Abstraction has 105 states and 168 transitions.
[2023-12-23 15:57:59,559 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45)
[2023-12-23 15:57:59,560 INFO  L276                IsEmpty]: Start isEmpty. Operand 105 states and 168 transitions.
[2023-12-23 15:57:59,563 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 271
[2023-12-23 15:57:59,564 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:57:59,564 INFO  L195           NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 15:57:59,588 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 (2)] Forceful destruction successful, exit code 0
[2023-12-23 15:57:59,788 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:57:59,789 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:57:59,790 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:57:59,790 INFO  L85        PathProgramCache]: Analyzing trace with hash 207534867, now seen corresponding path program 1 times
[2023-12-23 15:57:59,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:57:59,791 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483446425]
[2023-12-23 15:57:59,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:57:59,792 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:57:59,792 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:57:59,806 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 15:57:59,852 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-23 15:58:00,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:58:00,305 INFO  L262         TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 15:58:00,320 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:58:00,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked.
[2023-12-23 15:58:00,371 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:58:00,371 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:58:00,371 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483446425]
[2023-12-23 15:58:00,371 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [483446425] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:58:00,371 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:58:00,371 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 15:58:00,372 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384155939]
[2023-12-23 15:58:00,372 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:58:00,374 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 15:58:00,375 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:58:00,376 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 15:58:00,376 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 15:58:00,376 INFO  L87              Difference]: Start difference. First operand 105 states and 168 transitions. Second operand  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45)
[2023-12-23 15:58:00,503 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:58:00,504 INFO  L93              Difference]: Finished difference Result 266 states and 424 transitions.
[2023-12-23 15:58:00,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 15:58:00,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 270
[2023-12-23 15:58:00,507 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:58:00,509 INFO  L225             Difference]: With dead ends: 266
[2023-12-23 15:58:00,509 INFO  L226             Difference]: Without dead ends: 162
[2023-12-23 15:58:00,510 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 15:58:00,511 INFO  L413           NwaCegarLoop]: 208 mSDtfsCounter, 86 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 15:58:00,511 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 366 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 15:58:00,515 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 162 states.
[2023-12-23 15:58:00,540 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 159.
[2023-12-23 15:58:00,540 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 159 states, 95 states have (on average 1.3894736842105264) internal successors, (132), 96 states have internal predecessors, (132), 61 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61)
[2023-12-23 15:58:00,544 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 254 transitions.
[2023-12-23 15:58:00,544 INFO  L78                 Accepts]: Start accepts. Automaton has 159 states and 254 transitions. Word has length 270
[2023-12-23 15:58:00,545 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:58:00,545 INFO  L495      AbstractCegarLoop]: Abstraction has 159 states and 254 transitions.
[2023-12-23 15:58:00,546 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45)
[2023-12-23 15:58:00,546 INFO  L276                IsEmpty]: Start isEmpty. Operand 159 states and 254 transitions.
[2023-12-23 15:58:00,549 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 271
[2023-12-23 15:58:00,549 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:58:00,549 INFO  L195           NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 15:58:00,571 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-23 15:58:00,770 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:58:00,771 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:58:00,771 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:58:00,771 INFO  L85        PathProgramCache]: Analyzing trace with hash -813533487, now seen corresponding path program 1 times
[2023-12-23 15:58:00,772 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:58:00,772 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566353728]
[2023-12-23 15:58:00,772 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:58:00,773 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:58:00,773 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:58:00,774 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 15:58:00,777 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-23 15:58:01,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:58:01,196 INFO  L262         TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 15:58:01,204 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:58:02,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 3960 backedges. 1814 proven. 87 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked.
[2023-12-23 15:58:02,201 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 15:58:02,813 INFO  L134       CoverageAnalysis]: Checked inductivity of 3960 backedges. 45 proven. 87 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked.
[2023-12-23 15:58:02,813 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:58:02,813 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566353728]
[2023-12-23 15:58:02,813 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566353728] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 15:58:02,814 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 15:58:02,814 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-23 15:58:02,814 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369498862]
[2023-12-23 15:58:02,814 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 15:58:02,815 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 15:58:02,816 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:58:02,817 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 15:58:02,817 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-23 15:58:02,817 INFO  L87              Difference]: Start difference. First operand 159 states and 254 transitions. Second operand  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75)
[2023-12-23 15:58:03,915 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:58:03,915 INFO  L93              Difference]: Finished difference Result 329 states and 513 transitions.
[2023-12-23 15:58:03,918 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-23 15:58:03,919 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 270
[2023-12-23 15:58:03,920 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:58:03,923 INFO  L225             Difference]: With dead ends: 329
[2023-12-23 15:58:03,923 INFO  L226             Difference]: Without dead ends: 171
[2023-12-23 15:58:03,924 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 532 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210
[2023-12-23 15:58:03,925 INFO  L413           NwaCegarLoop]: 105 mSDtfsCounter, 209 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-23 15:58:03,925 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 221 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-23 15:58:03,926 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 171 states.
[2023-12-23 15:58:03,944 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 156.
[2023-12-23 15:58:03,945 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 156 states, 93 states have (on average 1.2903225806451613) internal successors, (120), 94 states have internal predecessors, (120), 59 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59)
[2023-12-23 15:58:03,946 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 238 transitions.
[2023-12-23 15:58:03,946 INFO  L78                 Accepts]: Start accepts. Automaton has 156 states and 238 transitions. Word has length 270
[2023-12-23 15:58:03,947 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:58:03,947 INFO  L495      AbstractCegarLoop]: Abstraction has 156 states and 238 transitions.
[2023-12-23 15:58:03,948 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75)
[2023-12-23 15:58:03,948 INFO  L276                IsEmpty]: Start isEmpty. Operand 156 states and 238 transitions.
[2023-12-23 15:58:03,951 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 271
[2023-12-23 15:58:03,951 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:58:03,951 INFO  L195           NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 15:58:03,972 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
[2023-12-23 15:58:04,172 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:58:04,173 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:58:04,173 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:58:04,174 INFO  L85        PathProgramCache]: Analyzing trace with hash -1206560497, now seen corresponding path program 1 times
[2023-12-23 15:58:04,174 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:58:04,174 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767201072]
[2023-12-23 15:58:04,175 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:58:04,175 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:58:04,175 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:58:04,176 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 15:58:04,178 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-23 15:58:04,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:58:04,644 INFO  L262         TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 15:58:04,649 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:58:05,887 INFO  L134       CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked.
[2023-12-23 15:58:05,887 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:58:05,887 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:58:05,888 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767201072]
[2023-12-23 15:58:05,888 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [767201072] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:58:05,888 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:58:05,888 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 15:58:05,888 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409281217]
[2023-12-23 15:58:05,888 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:58:05,889 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 15:58:05,889 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:58:05,890 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 15:58:05,890 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 15:58:05,890 INFO  L87              Difference]: Start difference. First operand 156 states and 238 transitions. Second operand  has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45)
[2023-12-23 15:58:06,736 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:58:06,736 INFO  L93              Difference]: Finished difference Result 412 states and 636 transitions.
[2023-12-23 15:58:06,737 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-23 15:58:06,738 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 270
[2023-12-23 15:58:06,738 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:58:06,743 INFO  L225             Difference]: With dead ends: 412
[2023-12-23 15:58:06,745 INFO  L226             Difference]: Without dead ends: 257
[2023-12-23 15:58:06,748 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-23 15:58:06,751 INFO  L413           NwaCegarLoop]: 290 mSDtfsCounter, 178 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-23 15:58:06,752 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 623 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-23 15:58:06,754 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 257 states.
[2023-12-23 15:58:06,805 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 156.
[2023-12-23 15:58:06,806 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 156 states, 93 states have (on average 1.2688172043010753) internal successors, (118), 94 states have internal predecessors, (118), 59 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59)
[2023-12-23 15:58:06,807 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 236 transitions.
[2023-12-23 15:58:06,808 INFO  L78                 Accepts]: Start accepts. Automaton has 156 states and 236 transitions. Word has length 270
[2023-12-23 15:58:06,808 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:58:06,808 INFO  L495      AbstractCegarLoop]: Abstraction has 156 states and 236 transitions.
[2023-12-23 15:58:06,809 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45)
[2023-12-23 15:58:06,809 INFO  L276                IsEmpty]: Start isEmpty. Operand 156 states and 236 transitions.
[2023-12-23 15:58:06,810 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 272
[2023-12-23 15:58:06,810 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:58:06,811 INFO  L195           NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 15:58:06,827 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-23 15:58:07,011 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:58:07,012 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:58:07,012 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:58:07,012 INFO  L85        PathProgramCache]: Analyzing trace with hash 1561353178, now seen corresponding path program 1 times
[2023-12-23 15:58:07,013 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:58:07,013 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610662210]
[2023-12-23 15:58:07,013 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:58:07,013 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:58:07,013 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:58:07,021 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 15:58:07,025 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-23 15:58:07,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:58:07,472 INFO  L262         TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 15:58:07,478 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:58:10,121 INFO  L134       CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked.
[2023-12-23 15:58:10,122 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:58:10,122 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:58:10,122 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610662210]
[2023-12-23 15:58:10,122 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610662210] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:58:10,122 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:58:10,122 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 15:58:10,122 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046596983]
[2023-12-23 15:58:10,122 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:58:10,123 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 15:58:10,123 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:58:10,124 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 15:58:10,124 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 15:58:10,124 INFO  L87              Difference]: Start difference. First operand 156 states and 236 transitions. Second operand  has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45)
[2023-12-23 15:58:10,760 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:58:10,761 INFO  L93              Difference]: Finished difference Result 476 states and 717 transitions.
[2023-12-23 15:58:10,761 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-23 15:58:10,761 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 271
[2023-12-23 15:58:10,763 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:58:10,765 INFO  L225             Difference]: With dead ends: 476
[2023-12-23 15:58:10,765 INFO  L226             Difference]: Without dead ends: 321
[2023-12-23 15:58:10,766 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-23 15:58:10,767 INFO  L413           NwaCegarLoop]: 155 mSDtfsCounter, 95 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 15:58:10,767 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 516 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 15:58:10,767 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 321 states.
[2023-12-23 15:58:10,813 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 309.
[2023-12-23 15:58:10,815 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 309 states, 184 states have (on average 1.2608695652173914) internal successors, (232), 186 states have internal predecessors, (232), 118 states have call successors, (118), 6 states have call predecessors, (118), 6 states have return successors, (118), 116 states have call predecessors, (118), 118 states have call successors, (118)
[2023-12-23 15:58:10,817 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 468 transitions.
[2023-12-23 15:58:10,818 INFO  L78                 Accepts]: Start accepts. Automaton has 309 states and 468 transitions. Word has length 271
[2023-12-23 15:58:10,820 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:58:10,820 INFO  L495      AbstractCegarLoop]: Abstraction has 309 states and 468 transitions.
[2023-12-23 15:58:10,822 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45)
[2023-12-23 15:58:10,824 INFO  L276                IsEmpty]: Start isEmpty. Operand 309 states and 468 transitions.
[2023-12-23 15:58:10,826 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 273
[2023-12-23 15:58:10,826 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:58:10,826 INFO  L195           NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 15:58:10,839 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-12-23 15:58:11,032 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:58:11,034 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:58:11,034 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:58:11,035 INFO  L85        PathProgramCache]: Analyzing trace with hash 1155631472, now seen corresponding path program 1 times
[2023-12-23 15:58:11,035 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:58:11,035 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570519327]
[2023-12-23 15:58:11,035 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:58:11,036 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:58:11,036 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:58:11,037 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 15:58:11,040 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-12-23 15:58:11,673 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:58:11,694 INFO  L262         TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 33 conjunts are in the unsatisfiable core
[2023-12-23 15:58:11,705 INFO  L285         TraceCheckSpWp]: Computing forward predicates...