/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-ci_file-34.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 14:06:25,363 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 14:06:25,438 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 14:06:25,442 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 14:06:25,443 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 14:06:25,464 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 14:06:25,464 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 14:06:25,464 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 14:06:25,465 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 14:06:25,468 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 14:06:25,468 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 14:06:25,468 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 14:06:25,469 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 14:06:25,469 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 14:06:25,470 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 14:06:25,470 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 14:06:25,470 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 14:06:25,470 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 14:06:25,470 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 14:06:25,471 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 14:06:25,471 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 14:06:25,472 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 14:06:25,472 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 14:06:25,472 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 14:06:25,472 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 14:06:25,472 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 14:06:25,472 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 14:06:25,473 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 14:06:25,473 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 14:06:25,473 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 14:06:25,474 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 14:06:25,474 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 14:06:25,474 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 14:06:25,474 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 14:06:25,474 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:06:25,474 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 14:06:25,474 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 14:06:25,474 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 14:06:25,474 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 14:06:25,475 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 14:06:25,475 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 14:06:25,475 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 14:06:25,475 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 14:06:25,475 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 14:06:25,475 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 14:06:25,475 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 14:06:25,475 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 14:06:25,673 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 14:06:25,694 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 14:06:25,695 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 14:06:25,696 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 14:06:25,697 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 14:06:25,698 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-34.i
[2023-12-23 14:06:26,680 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 14:06:26,887 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 14:06:26,887 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-34.i
[2023-12-23 14:06:26,896 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/119242097/610f30d355284916a94e6c1dfbf1c4ce/FLAG83adef43d
[2023-12-23 14:06:27,271 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/119242097/610f30d355284916a94e6c1dfbf1c4ce
[2023-12-23 14:06:27,273 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 14:06:27,274 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 14:06:27,275 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 14:06:27,275 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 14:06:27,285 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 14:06:27,286 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,286 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d555b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27, skipping insertion in model container
[2023-12-23 14:06:27,287 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,308 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 14:06:27,403 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-ci_file-34.i[919,932]
[2023-12-23 14:06:27,447 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:06:27,464 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 14:06:27,472 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-ci_file-34.i[919,932]
[2023-12-23 14:06:27,494 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:06:27,506 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 14:06:27,507 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27 WrapperNode
[2023-12-23 14:06:27,507 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 14:06:27,508 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 14:06:27,508 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 14:06:27,508 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 14:06:27,513 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,528 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,549 INFO  L138                Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 177
[2023-12-23 14:06:27,550 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 14:06:27,550 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 14:06:27,550 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 14:06:27,551 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 14:06:27,565 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,565 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,569 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,579 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 14:06:27,580 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,580 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,590 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,593 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,595 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,596 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,598 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 14:06:27,599 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 14:06:27,599 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 14:06:27,599 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 14:06:27,600 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (1/1) ...
[2023-12-23 14:06:27,603 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:06:27,613 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 14:06:27,630 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 14:06:27,634 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 14:06:27,652 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 14:06:27,652 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 14:06:27,652 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 14:06:27,652 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 14:06:27,652 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 14:06:27,652 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 14:06:27,709 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 14:06:27,710 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 14:06:28,312 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 14:06:28,358 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 14:06:28,358 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 14:06:28,359 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:06:28 BoogieIcfgContainer
[2023-12-23 14:06:28,359 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 14:06:28,361 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 14:06:28,361 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 14:06:28,364 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 14:06:28,364 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:06:27" (1/3) ...
[2023-12-23 14:06:28,365 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796e1fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:06:28, skipping insertion in model container
[2023-12-23 14:06:28,365 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:06:27" (2/3) ...
[2023-12-23 14:06:28,365 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796e1fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:06:28, skipping insertion in model container
[2023-12-23 14:06:28,365 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:06:28" (3/3) ...
[2023-12-23 14:06:28,366 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-34.i
[2023-12-23 14:06:28,378 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 14:06:28,379 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 14:06:28,422 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 14:06:28,430 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;@22095689, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 14:06:28,431 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 14:06:28,436 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 68 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 46 states have internal predecessors, (70), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-23 14:06:28,450 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2023-12-23 14:06:28,450 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:06:28,451 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:28,451 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:06:28,457 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:06:28,457 INFO  L85        PathProgramCache]: Analyzing trace with hash 386299767, now seen corresponding path program 1 times
[2023-12-23 14:06:28,469 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:06:28,469 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436742105]
[2023-12-23 14:06:28,469 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:06:28,470 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 14:06:28,470 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:06:28,472 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 14:06:28,506 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 14:06:28,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:06:28,757 INFO  L262         TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 14:06:28,766 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:06:28,798 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked.
[2023-12-23 14:06:28,798 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:06:28,799 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:06:28,799 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436742105]
[2023-12-23 14:06:28,799 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436742105] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:06:28,800 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:06:28,800 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 14:06:28,801 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657249350]
[2023-12-23 14:06:28,801 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:06:28,804 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 14:06:28,804 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:06:28,833 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 14:06:28,833 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 14:06:28,835 INFO  L87              Difference]: Start difference. First operand  has 68 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 46 states have internal predecessors, (70), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-23 14:06:28,889 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:06:28,890 INFO  L93              Difference]: Finished difference Result 133 states and 238 transitions.
[2023-12-23 14:06:28,895 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 14:06:28,897 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 133
[2023-12-23 14:06:28,897 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:06:28,902 INFO  L225             Difference]: With dead ends: 133
[2023-12-23 14:06:28,902 INFO  L226             Difference]: Without dead ends: 66
[2023-12-23 14:06:28,905 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 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 14:06:28,907 INFO  L413           NwaCegarLoop]: 102 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, 102 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 14:06:28,908 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 14:06:28,919 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2023-12-23 14:06:28,935 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2023-12-23 14:06:28,936 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 44 states have internal predecessors, (65), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-23 14:06:28,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 105 transitions.
[2023-12-23 14:06:28,940 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 105 transitions. Word has length 133
[2023-12-23 14:06:28,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:06:28,940 INFO  L495      AbstractCegarLoop]: Abstraction has 66 states and 105 transitions.
[2023-12-23 14:06:28,940 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-23 14:06:28,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 105 transitions.
[2023-12-23 14:06:28,943 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2023-12-23 14:06:28,943 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:06:28,943 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:28,953 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 14:06:29,144 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 14:06:29,144 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:06:29,145 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:06:29,145 INFO  L85        PathProgramCache]: Analyzing trace with hash 1968567731, now seen corresponding path program 1 times
[2023-12-23 14:06:29,146 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:06:29,146 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355062931]
[2023-12-23 14:06:29,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:06:29,146 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 14:06:29,146 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:06:29,148 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 14:06:29,149 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 14:06:29,381 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:06:29,395 INFO  L262         TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 14:06:29,400 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:06:29,659 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-23 14:06:29,659 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:06:29,659 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:06:29,662 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355062931]
[2023-12-23 14:06:29,663 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355062931] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:06:29,663 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:06:29,663 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 14:06:29,664 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269545796]
[2023-12-23 14:06:29,664 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:06:29,666 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 14:06:29,666 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:06:29,667 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 14:06:29,667 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 14:06:29,667 INFO  L87              Difference]: Start difference. First operand 66 states and 105 transitions. Second operand  has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 14:06:29,890 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:06:29,891 INFO  L93              Difference]: Finished difference Result 214 states and 340 transitions.
[2023-12-23 14:06:29,896 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 14:06:29,896 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133
[2023-12-23 14:06:29,897 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:06:29,899 INFO  L225             Difference]: With dead ends: 214
[2023-12-23 14:06:29,899 INFO  L226             Difference]: Without dead ends: 149
[2023-12-23 14:06:29,899 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 14:06:29,900 INFO  L413           NwaCegarLoop]: 100 mSDtfsCounter, 122 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 14:06:29,900 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 298 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 14:06:29,901 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 149 states.
[2023-12-23 14:06:29,922 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 131.
[2023-12-23 14:06:29,923 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 131 states, 88 states have (on average 1.4659090909090908) internal successors, (129), 88 states have internal predecessors, (129), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-23 14:06:29,924 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 209 transitions.
[2023-12-23 14:06:29,924 INFO  L78                 Accepts]: Start accepts. Automaton has 131 states and 209 transitions. Word has length 133
[2023-12-23 14:06:29,925 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:06:29,925 INFO  L495      AbstractCegarLoop]: Abstraction has 131 states and 209 transitions.
[2023-12-23 14:06:29,925 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 14:06:29,925 INFO  L276                IsEmpty]: Start isEmpty. Operand 131 states and 209 transitions.
[2023-12-23 14:06:29,927 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-12-23 14:06:29,927 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:06:29,927 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:29,951 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 14:06:30,135 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 14:06:30,136 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:06:30,136 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:06:30,136 INFO  L85        PathProgramCache]: Analyzing trace with hash -689223881, now seen corresponding path program 1 times
[2023-12-23 14:06:30,137 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:06:30,137 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015022808]
[2023-12-23 14:06:30,137 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:06:30,137 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 14:06:30,138 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:06:30,138 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 14:06:30,146 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 14:06:30,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:06:30,353 INFO  L262         TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 14:06:30,357 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:06:30,509 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-23 14:06:30,509 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:06:30,509 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:06:30,509 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015022808]
[2023-12-23 14:06:30,509 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015022808] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:06:30,509 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:06:30,509 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 14:06:30,509 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889943804]
[2023-12-23 14:06:30,510 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:06:30,510 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 14:06:30,510 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:06:30,511 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 14:06:30,511 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 14:06:30,511 INFO  L87              Difference]: Start difference. First operand 131 states and 209 transitions. Second operand  has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 14:06:30,770 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:06:30,770 INFO  L93              Difference]: Finished difference Result 343 states and 545 transitions.
[2023-12-23 14:06:30,776 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 14:06:30,776 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134
[2023-12-23 14:06:30,777 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:06:30,778 INFO  L225             Difference]: With dead ends: 343
[2023-12-23 14:06:30,778 INFO  L226             Difference]: Without dead ends: 213
[2023-12-23 14:06:30,779 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 14:06:30,780 INFO  L413           NwaCegarLoop]: 101 mSDtfsCounter, 70 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 14:06:30,780 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 296 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 14:06:30,781 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 213 states.
[2023-12-23 14:06:30,821 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 185.
[2023-12-23 14:06:30,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 185 states, 121 states have (on average 1.43801652892562) internal successors, (174), 121 states have internal predecessors, (174), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60)
[2023-12-23 14:06:30,824 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 294 transitions.
[2023-12-23 14:06:30,824 INFO  L78                 Accepts]: Start accepts. Automaton has 185 states and 294 transitions. Word has length 134
[2023-12-23 14:06:30,825 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:06:30,825 INFO  L495      AbstractCegarLoop]: Abstraction has 185 states and 294 transitions.
[2023-12-23 14:06:30,825 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 14:06:30,825 INFO  L276                IsEmpty]: Start isEmpty. Operand 185 states and 294 transitions.
[2023-12-23 14:06:30,826 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-12-23 14:06:30,827 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:06:30,827 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:30,838 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 14:06:31,036 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 14:06:31,036 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:06:31,037 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:06:31,037 INFO  L85        PathProgramCache]: Analyzing trace with hash -296196871, now seen corresponding path program 1 times
[2023-12-23 14:06:31,037 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:06:31,037 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173717155]
[2023-12-23 14:06:31,038 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:06:31,038 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 14:06:31,038 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:06:31,039 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 14:06:31,060 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 14:06:31,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:06:31,245 INFO  L262         TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 14:06:31,265 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:06:31,711 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-23 14:06:31,711 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:06:31,711 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:06:31,711 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173717155]
[2023-12-23 14:06:31,712 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [173717155] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:06:31,713 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:06:31,713 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-23 14:06:31,714 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096018048]
[2023-12-23 14:06:31,714 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:06:31,716 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-23 14:06:31,717 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:06:31,717 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-23 14:06:31,718 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-23 14:06:31,718 INFO  L87              Difference]: Start difference. First operand 185 states and 294 transitions. Second operand  has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 14:06:32,530 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:06:32,531 INFO  L93              Difference]: Finished difference Result 447 states and 712 transitions.
[2023-12-23 14:06:32,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-23 14:06:32,531 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134
[2023-12-23 14:06:32,532 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:06:32,533 INFO  L225             Difference]: With dead ends: 447
[2023-12-23 14:06:32,533 INFO  L226             Difference]: Without dead ends: 317
[2023-12-23 14:06:32,534 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2023-12-23 14:06:32,535 INFO  L413           NwaCegarLoop]: 168 mSDtfsCounter, 97 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-23 14:06:32,535 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 527 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-23 14:06:32,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 317 states.
[2023-12-23 14:06:32,573 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 309.
[2023-12-23 14:06:32,574 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 309 states, 203 states have (on average 1.4334975369458127) internal successors, (291), 203 states have internal predecessors, (291), 100 states have call successors, (100), 5 states have call predecessors, (100), 5 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100)
[2023-12-23 14:06:32,575 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 491 transitions.
[2023-12-23 14:06:32,575 INFO  L78                 Accepts]: Start accepts. Automaton has 309 states and 491 transitions. Word has length 134
[2023-12-23 14:06:32,576 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:06:32,576 INFO  L495      AbstractCegarLoop]: Abstraction has 309 states and 491 transitions.
[2023-12-23 14:06:32,576 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 14:06:32,576 INFO  L276                IsEmpty]: Start isEmpty. Operand 309 states and 491 transitions.
[2023-12-23 14:06:32,577 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-23 14:06:32,577 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:06:32,578 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:32,586 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 14:06:32,786 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 14:06:32,786 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:06:32,787 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:06:32,787 INFO  L85        PathProgramCache]: Analyzing trace with hash 749563145, now seen corresponding path program 1 times
[2023-12-23 14:06:32,787 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:06:32,787 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494032313]
[2023-12-23 14:06:32,788 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:06:32,788 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 14:06:32,788 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:06:32,789 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 14:06:32,810 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 14:06:33,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:06:33,102 INFO  L262         TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 36 conjunts are in the unsatisfiable core
[2023-12-23 14:06:33,111 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:06:37,852 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 402 proven. 108 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2023-12-23 14:06:37,853 INFO  L327         TraceCheckSpWp]: Computing backward predicates...