/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-pr-cn_file-55.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 12:09:21,952 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 12:09:22,042 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 12:09:22,046 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 12:09:22,047 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 12:09:22,074 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 12:09:22,074 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 12:09:22,074 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 12:09:22,075 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 12:09:22,079 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 12:09:22,079 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 12:09:22,079 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 12:09:22,080 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 12:09:22,081 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 12:09:22,081 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 12:09:22,082 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 12:09:22,082 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 12:09:22,082 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 12:09:22,082 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 12:09:22,082 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 12:09:22,083 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 12:09:22,083 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 12:09:22,083 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 12:09:22,083 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 12:09:22,084 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 12:09:22,084 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 12:09:22,084 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 12:09:22,084 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 12:09:22,084 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 12:09:22,084 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 12:09:22,085 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 12:09:22,085 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 12:09:22,086 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 12:09:22,086 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 12:09:22,086 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:09:22,086 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 12:09:22,086 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 12:09:22,086 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 12:09:22,087 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 12:09:22,087 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 12:09:22,087 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 12:09:22,087 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 12:09:22,087 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 12:09:22,087 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 12:09:22,088 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 12:09:22,088 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 12:09:22,088 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 12:09:22,263 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 12:09:22,290 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 12:09:22,291 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 12:09:22,292 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 12:09:22,294 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 12:09:22,295 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-55.i
[2023-12-23 12:09:23,388 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 12:09:23,549 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 12:09:23,549 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-55.i
[2023-12-23 12:09:23,556 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a0474d6/b394ecaf54024af9bdafba5c975f03e6/FLAG3aa21b57d
[2023-12-23 12:09:23,566 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a0474d6/b394ecaf54024af9bdafba5c975f03e6
[2023-12-23 12:09:23,568 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 12:09:23,568 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 12:09:23,569 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 12:09:23,569 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 12:09:23,574 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 12:09:23,575 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,575 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ccc2b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23, skipping insertion in model container
[2023-12-23 12:09:23,576 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,606 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 12:09:23,704 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-pr-cn_file-55.i[919,932]
[2023-12-23 12:09:23,765 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:09:23,781 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 12:09:23,790 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-pr-cn_file-55.i[919,932]
[2023-12-23 12:09:23,836 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:09:23,850 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 12:09:23,850 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23 WrapperNode
[2023-12-23 12:09:23,850 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 12:09:23,851 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 12:09:23,851 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 12:09:23,851 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 12:09:23,856 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,866 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,902 INFO  L138                Inliner]: procedures = 27, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 282
[2023-12-23 12:09:23,902 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 12:09:23,903 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 12:09:23,903 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 12:09:23,903 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 12:09:23,916 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,916 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,920 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,935 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 12:09:23,935 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,935 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,944 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,946 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,948 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,950 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,953 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 12:09:23,953 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 12:09:23,953 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 12:09:23,953 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 12:09:23,954 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (1/1) ...
[2023-12-23 12:09:23,958 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:09:23,966 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 12:09:23,994 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 12:09:24,015 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 12:09:24,032 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 12:09:24,032 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 12:09:24,032 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 12:09:24,033 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 12:09:24,033 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 12:09:24,033 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 12:09:24,102 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 12:09:24,104 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 12:09:33,611 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 12:09:33,699 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 12:09:33,700 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 12:09:33,700 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:09:33 BoogieIcfgContainer
[2023-12-23 12:09:33,700 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 12:09:33,702 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 12:09:33,708 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 12:09:33,710 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 12:09:33,710 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:09:23" (1/3) ...
[2023-12-23 12:09:33,711 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d50069a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:09:33, skipping insertion in model container
[2023-12-23 12:09:33,711 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:09:23" (2/3) ...
[2023-12-23 12:09:33,711 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d50069a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:09:33, skipping insertion in model container
[2023-12-23 12:09:33,712 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:09:33" (3/3) ...
[2023-12-23 12:09:33,713 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-55.i
[2023-12-23 12:09:33,724 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 12:09:33,725 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 12:09:33,771 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 12:09:33,776 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;@caaa97c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 12:09:33,776 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 12:09:33,780 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 122 states, 61 states have (on average 1.360655737704918) internal successors, (83), 62 states have internal predecessors, (83), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58)
[2023-12-23 12:09:33,808 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 341
[2023-12-23 12:09:33,808 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:09:33,809 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:33,810 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:09:33,815 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:09:33,816 INFO  L85        PathProgramCache]: Analyzing trace with hash -401790790, now seen corresponding path program 1 times
[2023-12-23 12:09:33,827 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:09:33,828 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533848062]
[2023-12-23 12:09:33,828 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:09:33,828 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 12:09:33,829 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:09:33,831 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 12:09:33,880 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 12:09:34,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:09:34,762 INFO  L262         TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 12:09:34,774 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:09:34,836 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 3338 proven. 0 refuted. 0 times theorem prover too weak. 3274 trivial. 0 not checked.
[2023-12-23 12:09:34,837 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:09:34,837 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:09:34,837 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533848062]
[2023-12-23 12:09:34,838 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533848062] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:09:34,838 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:09:34,838 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 12:09:34,846 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738653627]
[2023-12-23 12:09:34,846 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:09:34,850 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 12:09:34,850 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:09:34,884 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 12:09:34,885 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 12:09:34,887 INFO  L87              Difference]: Start difference. First operand  has 122 states, 61 states have (on average 1.360655737704918) internal successors, (83), 62 states have internal predecessors, (83), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand  has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 12:09:35,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:09:35,017 INFO  L93              Difference]: Finished difference Result 241 states and 454 transitions.
[2023-12-23 12:09:35,026 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 12:09:35,027 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 340
[2023-12-23 12:09:35,028 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:09:35,034 INFO  L225             Difference]: With dead ends: 241
[2023-12-23 12:09:35,034 INFO  L226             Difference]: Without dead ends: 120
[2023-12-23 12:09:35,037 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 339 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 12:09:35,039 INFO  L413           NwaCegarLoop]: 190 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 12:09:35,040 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 190 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 12:09:35,050 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2023-12-23 12:09:35,072 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120.
[2023-12-23 12:09:35,073 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 120 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 60 states have internal predecessors, (77), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58)
[2023-12-23 12:09:35,075 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 193 transitions.
[2023-12-23 12:09:35,075 INFO  L78                 Accepts]: Start accepts. Automaton has 120 states and 193 transitions. Word has length 340
[2023-12-23 12:09:35,076 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:09:35,076 INFO  L495      AbstractCegarLoop]: Abstraction has 120 states and 193 transitions.
[2023-12-23 12:09:35,076 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 12:09:35,076 INFO  L276                IsEmpty]: Start isEmpty. Operand 120 states and 193 transitions.
[2023-12-23 12:09:35,080 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 341
[2023-12-23 12:09:35,080 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:09:35,080 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:35,101 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-23 12:09:35,296 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 12:09:35,297 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:09:35,297 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:09:35,298 INFO  L85        PathProgramCache]: Analyzing trace with hash -258540882, now seen corresponding path program 1 times
[2023-12-23 12:09:35,299 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:09:35,299 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284493545]
[2023-12-23 12:09:35,299 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:09:35,299 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 12:09:35,299 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:09:35,300 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 12:09:35,302 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 12:09:36,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:09:36,269 INFO  L262         TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 12:09:36,281 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:09:36,366 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked.
[2023-12-23 12:09:36,366 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:09:36,367 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:09:36,367 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284493545]
[2023-12-23 12:09:36,367 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284493545] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:09:36,367 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:09:36,367 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 12:09:36,367 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686598698]
[2023-12-23 12:09:36,367 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:09:36,370 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 12:09:36,370 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:09:36,371 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 12:09:36,371 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 12:09:36,371 INFO  L87              Difference]: Start difference. First operand 120 states and 193 transitions. Second operand  has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 12:09:36,660 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:09:36,661 INFO  L93              Difference]: Finished difference Result 358 states and 577 transitions.
[2023-12-23 12:09:36,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 12:09:36,662 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 340
[2023-12-23 12:09:36,663 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:09:36,665 INFO  L225             Difference]: With dead ends: 358
[2023-12-23 12:09:36,665 INFO  L226             Difference]: Without dead ends: 239
[2023-12-23 12:09:36,666 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 12:09:36,667 INFO  L413           NwaCegarLoop]: 345 mSDtfsCounter, 187 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 12:09:36,667 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 529 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 12:09:36,668 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 239 states.
[2023-12-23 12:09:36,713 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 237.
[2023-12-23 12:09:36,714 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 237 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 118 states have internal predecessors, (151), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116)
[2023-12-23 12:09:36,716 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 383 transitions.
[2023-12-23 12:09:36,716 INFO  L78                 Accepts]: Start accepts. Automaton has 237 states and 383 transitions. Word has length 340
[2023-12-23 12:09:36,717 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:09:36,717 INFO  L495      AbstractCegarLoop]: Abstraction has 237 states and 383 transitions.
[2023-12-23 12:09:36,717 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 12:09:36,717 INFO  L276                IsEmpty]: Start isEmpty. Operand 237 states and 383 transitions.
[2023-12-23 12:09:36,721 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 341
[2023-12-23 12:09:36,721 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:09:36,721 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:36,744 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 12:09:36,941 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 12:09:36,942 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:09:36,943 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:09:36,943 INFO  L85        PathProgramCache]: Analyzing trace with hash -375444, now seen corresponding path program 1 times
[2023-12-23 12:09:36,944 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:09:36,944 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697161189]
[2023-12-23 12:09:36,944 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:09:36,944 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 12:09:36,944 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:09:36,945 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 12:09:36,961 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 12:09:37,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:09:37,893 INFO  L262         TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 12:09:37,900 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:09:39,558 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 3333 proven. 93 refuted. 0 times theorem prover too weak. 3186 trivial. 0 not checked.
[2023-12-23 12:09:39,558 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 12:09:40,462 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 78 proven. 93 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked.
[2023-12-23 12:09:40,462 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:09:40,462 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697161189]
[2023-12-23 12:09:40,462 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [697161189] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 12:09:40,463 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 12:09:40,463 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-23 12:09:40,463 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936462873]
[2023-12-23 12:09:40,463 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 12:09:40,464 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 12:09:40,464 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:09:40,464 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 12:09:40,465 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-23 12:09:40,465 INFO  L87              Difference]: Start difference. First operand 237 states and 383 transitions. Second operand  has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90)
[2023-12-23 12:09:44,389 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:09:44,390 INFO  L93              Difference]: Finished difference Result 741 states and 1175 transitions.
[2023-12-23 12:09:44,390 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2023-12-23 12:09:44,390 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 340
[2023-12-23 12:09:44,392 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:09:44,397 INFO  L225             Difference]: With dead ends: 741
[2023-12-23 12:09:44,397 INFO  L226             Difference]: Without dead ends: 505
[2023-12-23 12:09:44,398 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 672 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2023-12-23 12:09:44,399 INFO  L413           NwaCegarLoop]: 236 mSDtfsCounter, 241 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2023-12-23 12:09:44,399 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 590 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2023-12-23 12:09:44,400 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 505 states.
[2023-12-23 12:09:44,481 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 261.
[2023-12-23 12:09:44,482 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 261 states, 140 states have (on average 1.3214285714285714) internal successors, (185), 140 states have internal predecessors, (185), 116 states have call successors, (116), 4 states have call predecessors, (116), 4 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116)
[2023-12-23 12:09:44,483 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 417 transitions.
[2023-12-23 12:09:44,483 INFO  L78                 Accepts]: Start accepts. Automaton has 261 states and 417 transitions. Word has length 340
[2023-12-23 12:09:44,484 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:09:44,484 INFO  L495      AbstractCegarLoop]: Abstraction has 261 states and 417 transitions.
[2023-12-23 12:09:44,484 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90)
[2023-12-23 12:09:44,484 INFO  L276                IsEmpty]: Start isEmpty. Operand 261 states and 417 transitions.
[2023-12-23 12:09:44,487 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 341
[2023-12-23 12:09:44,487 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:09:44,487 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:44,508 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 12:09:44,704 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 12:09:44,704 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:09:44,707 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:09:44,707 INFO  L85        PathProgramCache]: Analyzing trace with hash 56882858, now seen corresponding path program 1 times
[2023-12-23 12:09:44,708 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:09:44,708 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596023697]
[2023-12-23 12:09:44,708 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:09:44,708 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 12:09:44,708 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:09:44,726 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 12:09:44,730 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 12:09:45,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:09:45,887 INFO  L262         TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 39 conjunts are in the unsatisfiable core
[2023-12-23 12:09:45,895 INFO  L285         TraceCheckSpWp]: Computing forward predicates...