/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-co_file-95.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 17:02:39,402 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 17:02:39,469 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 17:02:39,473 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 17:02:39,474 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 17:02:39,496 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 17:02:39,496 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 17:02:39,497 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 17:02:39,497 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 17:02:39,500 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 17:02:39,500 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 17:02:39,501 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 17:02:39,501 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 17:02:39,502 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 17:02:39,502 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 17:02:39,503 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 17:02:39,503 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 17:02:39,503 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 17:02:39,503 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 17:02:39,503 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 17:02:39,503 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 17:02:39,504 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 17:02:39,504 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 17:02:39,504 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 17:02:39,504 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 17:02:39,504 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 17:02:39,504 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 17:02:39,505 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 17:02:39,505 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 17:02:39,505 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 17:02:39,506 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 17:02:39,506 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 17:02:39,506 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 17:02:39,506 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 17:02:39,506 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 17:02:39,506 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 17:02:39,507 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 17:02:39,507 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 17:02:39,507 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 17:02:39,507 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 17:02:39,507 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 17:02:39,507 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 17:02:39,507 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 17:02:39,507 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 17:02:39,508 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 17:02:39,508 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 17:02:39,508 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 17:02:39,690 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 17:02:39,708 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 17:02:39,710 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 17:02:39,711 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 17:02:39,711 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 17:02:39,712 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-95.i
[2023-12-23 17:02:40,740 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 17:02:40,898 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 17:02:40,899 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-95.i
[2023-12-23 17:02:40,905 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ece79aaf5/3069ec09b14242cea2515ac8fe56fc21/FLAG5eb9f6240
[2023-12-23 17:02:40,931 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ece79aaf5/3069ec09b14242cea2515ac8fe56fc21
[2023-12-23 17:02:40,934 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 17:02:40,934 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 17:02:40,936 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 17:02:40,936 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 17:02:40,939 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 17:02:40,940 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:02:40" (1/1) ...
[2023-12-23 17:02:40,941 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fde642f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:40, skipping insertion in model container
[2023-12-23 17:02:40,941 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:02:40" (1/1) ...
[2023-12-23 17:02:40,977 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 17:02:41,105 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-co_file-95.i[919,932]
[2023-12-23 17:02:41,190 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 17:02:41,203 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 17:02:41,214 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-co_file-95.i[919,932]
[2023-12-23 17:02:41,249 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 17:02:41,260 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 17:02:41,261 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41 WrapperNode
[2023-12-23 17:02:41,261 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 17:02:41,261 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 17:02:41,262 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 17:02:41,262 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 17:02:41,266 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,275 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,307 INFO  L138                Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 218
[2023-12-23 17:02:41,307 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 17:02:41,308 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 17:02:41,308 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 17:02:41,308 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 17:02:41,315 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,315 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,319 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,337 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 17:02:41,337 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,337 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,346 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,348 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,350 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,373 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,379 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 17:02:41,380 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 17:02:41,380 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 17:02:41,380 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 17:02:41,381 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (1/1) ...
[2023-12-23 17:02:41,392 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 17:02:41,401 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 17:02:41,417 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 17:02:41,437 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 17:02:41,437 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 17:02:41,437 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 17:02:41,437 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 17:02:41,438 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 17:02:41,439 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 17:02:41,440 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 17:02:41,515 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 17:02:41,518 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 17:03:00,538 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 17:03:00,565 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 17:03:00,565 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 17:03:00,566 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:03:00 BoogieIcfgContainer
[2023-12-23 17:03:00,566 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 17:03:00,567 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 17:03:00,567 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 17:03:00,571 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 17:03:00,571 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:02:40" (1/3) ...
[2023-12-23 17:03:00,572 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4402370e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:03:00, skipping insertion in model container
[2023-12-23 17:03:00,572 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:41" (2/3) ...
[2023-12-23 17:03:00,572 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4402370e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:03:00, skipping insertion in model container
[2023-12-23 17:03:00,572 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:03:00" (3/3) ...
[2023-12-23 17:03:00,573 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-95.i
[2023-12-23 17:03:00,585 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 17:03:00,585 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 17:03:00,616 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 17:03:00,620 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;@7090f1d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 17:03:00,621 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 17:03:00,624 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 90 states, 53 states have (on average 1.4528301886792452) internal successors, (77), 54 states have internal predecessors, (77), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 17:03:00,635 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 212
[2023-12-23 17:03:00,635 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 17:03:00,636 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:00,636 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 17:03:00,639 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 17:03:00,640 INFO  L85        PathProgramCache]: Analyzing trace with hash -199360067, now seen corresponding path program 1 times
[2023-12-23 17:03:00,648 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 17:03:00,649 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950166648]
[2023-12-23 17:03:00,649 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 17:03:00,649 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 17:03:00,649 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 17:03:00,651 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 17:03:00,653 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 17:03:02,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 17:03:02,424 INFO  L262         TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 17:03:02,433 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 17:03:02,481 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked.
[2023-12-23 17:03:02,481 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 17:03:02,482 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 17:03:02,482 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950166648]
[2023-12-23 17:03:02,482 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [950166648] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 17:03:02,482 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 17:03:02,482 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 17:03:02,483 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146046318]
[2023-12-23 17:03:02,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 17:03:02,487 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 17:03:02,487 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 17:03:02,505 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 17:03:02,505 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 17:03:02,507 INFO  L87              Difference]: Start difference. First operand  has 90 states, 53 states have (on average 1.4528301886792452) internal successors, (77), 54 states have internal predecessors, (77), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-23 17:03:07,221 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:03:07,222 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 17:03:07,222 INFO  L93              Difference]: Finished difference Result 176 states and 320 transitions.
[2023-12-23 17:03:07,471 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 17:03:07,473 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 211
[2023-12-23 17:03:07,473 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 17:03:07,478 INFO  L225             Difference]: With dead ends: 176
[2023-12-23 17:03:07,479 INFO  L226             Difference]: Without dead ends: 87
[2023-12-23 17:03:07,485 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 210 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 17:03:07,489 INFO  L413           NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2023-12-23 17:03:07,491 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time]
[2023-12-23 17:03:07,502 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2023-12-23 17:03:07,530 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87.
[2023-12-23 17:03:07,532 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 51 states have internal predecessors, (69), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 17:03:07,535 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 137 transitions.
[2023-12-23 17:03:07,537 INFO  L78                 Accepts]: Start accepts. Automaton has 87 states and 137 transitions. Word has length 211
[2023-12-23 17:03:07,537 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 17:03:07,537 INFO  L495      AbstractCegarLoop]: Abstraction has 87 states and 137 transitions.
[2023-12-23 17:03:07,537 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-23 17:03:07,538 INFO  L276                IsEmpty]: Start isEmpty. Operand 87 states and 137 transitions.
[2023-12-23 17:03:07,541 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 212
[2023-12-23 17:03:07,541 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 17:03:07,541 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:07,580 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 17:03:07,748 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 17:03:07,748 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 17:03:07,749 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 17:03:07,750 INFO  L85        PathProgramCache]: Analyzing trace with hash 1541165445, now seen corresponding path program 1 times
[2023-12-23 17:03:07,750 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 17:03:07,751 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431445759]
[2023-12-23 17:03:07,751 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 17:03:07,751 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 17:03:07,751 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 17:03:07,752 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 17:03:07,759 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 17:03:09,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 17:03:09,409 INFO  L262         TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 17:03:09,414 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 17:03:10,595 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 945 proven. 27 refuted. 0 times theorem prover too weak. 1272 trivial. 0 not checked.
[2023-12-23 17:03:10,595 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 17:03:11,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 72 proven. 27 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked.
[2023-12-23 17:03:11,575 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 17:03:11,575 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431445759]
[2023-12-23 17:03:11,575 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [431445759] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 17:03:11,575 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 17:03:11,575 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 17:03:11,576 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727406711]
[2023-12-23 17:03:11,576 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 17:03:11,577 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 17:03:11,577 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 17:03:11,578 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 17:03:11,578 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 17:03:11,578 INFO  L87              Difference]: Start difference. First operand 87 states and 137 transitions. Second operand  has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44)
[2023-12-23 17:03:18,301 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:03:22,308 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:03:26,317 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:03:26,320 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 17:03:26,321 INFO  L93              Difference]: Finished difference Result 181 states and 280 transitions.
[2023-12-23 17:03:26,584 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 17:03:26,584 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 211
[2023-12-23 17:03:26,586 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 17:03:26,588 INFO  L225             Difference]: With dead ends: 181
[2023-12-23 17:03:26,588 INFO  L226             Difference]: Without dead ends: 95
[2023-12-23 17:03:26,589 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 414 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 17:03:26,590 INFO  L413           NwaCegarLoop]: 95 mSDtfsCounter, 131 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 55 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time
[2023-12-23 17:03:26,590 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 213 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 191 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time]
[2023-12-23 17:03:26,591 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2023-12-23 17:03:26,600 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91.
[2023-12-23 17:03:26,601 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 54 states have internal predecessors, (71), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 17:03:26,602 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 139 transitions.
[2023-12-23 17:03:26,602 INFO  L78                 Accepts]: Start accepts. Automaton has 91 states and 139 transitions. Word has length 211
[2023-12-23 17:03:26,603 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 17:03:26,603 INFO  L495      AbstractCegarLoop]: Abstraction has 91 states and 139 transitions.
[2023-12-23 17:03:26,603 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44)
[2023-12-23 17:03:26,603 INFO  L276                IsEmpty]: Start isEmpty. Operand 91 states and 139 transitions.
[2023-12-23 17:03:26,605 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 212
[2023-12-23 17:03:26,605 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 17:03:26,606 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:26,644 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 17:03:26,807 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 17:03:26,808 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 17:03:26,808 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 17:03:26,809 INFO  L85        PathProgramCache]: Analyzing trace with hash 954359431, now seen corresponding path program 1 times
[2023-12-23 17:03:26,809 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 17:03:26,809 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179870821]
[2023-12-23 17:03:26,810 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 17:03:26,810 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 17:03:26,810 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 17:03:26,811 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 17:03:26,812 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 17:03:28,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 17:03:28,535 INFO  L262         TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 17:03:28,558 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 17:03:31,970 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-23 17:03:31,973 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 17:03:31,977 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 17:03:31,978 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179870821]
[2023-12-23 17:03:31,978 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [179870821] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 17:03:31,978 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 17:03:31,978 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 17:03:31,978 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831443830]
[2023-12-23 17:03:31,978 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 17:03:31,979 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 17:03:31,979 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 17:03:31,980 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 17:03:31,980 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 17:03:31,980 INFO  L87              Difference]: Start difference. First operand 91 states and 139 transitions. Second operand  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 17:03:37,134 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:03:41,141 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:03:46,346 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:03:50,358 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:03:54,376 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:03:54,376 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 17:03:54,376 INFO  L93              Difference]: Finished difference Result 272 states and 416 transitions.
[2023-12-23 17:03:54,638 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 17:03:54,638 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 211
[2023-12-23 17:03:54,639 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 17:03:54,641 INFO  L225             Difference]: With dead ends: 272
[2023-12-23 17:03:54,641 INFO  L226             Difference]: Without dead ends: 182
[2023-12-23 17:03:54,641 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 17:03:54,642 INFO  L413           NwaCegarLoop]: 126 mSDtfsCounter, 85 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 69 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time
[2023-12-23 17:03:54,642 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 382 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 21 Invalid, 5 Unknown, 0 Unchecked, 22.3s Time]
[2023-12-23 17:03:54,643 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 182 states.
[2023-12-23 17:03:54,665 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 172.
[2023-12-23 17:03:54,666 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 172 states, 99 states have (on average 1.303030303030303) internal successors, (129), 99 states have internal predecessors, (129), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68)
[2023-12-23 17:03:54,667 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 265 transitions.
[2023-12-23 17:03:54,667 INFO  L78                 Accepts]: Start accepts. Automaton has 172 states and 265 transitions. Word has length 211
[2023-12-23 17:03:54,668 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 17:03:54,668 INFO  L495      AbstractCegarLoop]: Abstraction has 172 states and 265 transitions.
[2023-12-23 17:03:54,668 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 17:03:54,668 INFO  L276                IsEmpty]: Start isEmpty. Operand 172 states and 265 transitions.
[2023-12-23 17:03:54,670 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 212
[2023-12-23 17:03:54,670 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 17:03:54,670 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:54,708 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 17:03:54,896 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 17:03:54,899 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 17:03:54,899 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 17:03:54,899 INFO  L85        PathProgramCache]: Analyzing trace with hash 1763706057, now seen corresponding path program 1 times
[2023-12-23 17:03:54,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 17:03:54,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295399244]
[2023-12-23 17:03:54,900 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 17:03:54,900 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 17:03:54,900 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 17:03:54,901 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 17:03:54,903 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 17:04:00,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 17:04:00,480 INFO  L262         TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 34 conjunts are in the unsatisfiable core
[2023-12-23 17:04:00,487 INFO  L285         TraceCheckSpWp]: Computing forward predicates...