/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-pe-co_file-68.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 09:59:13,234 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 09:59:13,304 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 09:59:13,309 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 09:59:13,309 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 09:59:13,331 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 09:59:13,331 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 09:59:13,331 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 09:59:13,332 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 09:59:13,335 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 09:59:13,335 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 09:59:13,336 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 09:59:13,336 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 09:59:13,337 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 09:59:13,337 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 09:59:13,338 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 09:59:13,338 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 09:59:13,338 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 09:59:13,338 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 09:59:13,339 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 09:59:13,339 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 09:59:13,340 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 09:59:13,340 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 09:59:13,340 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 09:59:13,340 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 09:59:13,340 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 09:59:13,340 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 09:59:13,341 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 09:59:13,341 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 09:59:13,341 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 09:59:13,342 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 09:59:13,342 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 09:59:13,342 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 09:59:13,342 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 09:59:13,342 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 09:59:13,342 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 09:59:13,343 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 09:59:13,343 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 09:59:13,343 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 09:59:13,343 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 09:59:13,343 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 09:59:13,343 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 09:59:13,344 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 09:59:13,344 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 09:59:13,344 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 09:59:13,344 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 09:59:13,344 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 09:59:13,538 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 09:59:13,560 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 09:59:13,562 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 09:59:13,562 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 09:59:13,563 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 09:59:13,565 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-68.i
[2023-12-23 09:59:14,591 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 09:59:14,798 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 09:59:14,798 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-68.i
[2023-12-23 09:59:14,808 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68473230/2098b07cb21943678126e077da240aec/FLAG0214d7207
[2023-12-23 09:59:14,820 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68473230/2098b07cb21943678126e077da240aec
[2023-12-23 09:59:14,822 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 09:59:14,823 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 09:59:14,826 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 09:59:14,826 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 09:59:14,829 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 09:59:14,829 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:59:14" (1/1) ...
[2023-12-23 09:59:14,830 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560bb906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:14, skipping insertion in model container
[2023-12-23 09:59:14,830 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:59:14" (1/1) ...
[2023-12-23 09:59:14,860 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 09:59:14,967 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-pe-co_file-68.i[919,932]
[2023-12-23 09:59:15,010 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 09:59:15,024 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 09:59:15,033 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-pe-co_file-68.i[919,932]
[2023-12-23 09:59:15,058 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 09:59:15,071 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 09:59:15,071 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15 WrapperNode
[2023-12-23 09:59:15,071 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 09:59:15,072 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 09:59:15,072 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 09:59:15,072 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 09:59:15,083 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,092 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,119 INFO  L138                Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 184
[2023-12-23 09:59:15,119 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 09:59:15,120 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 09:59:15,120 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 09:59:15,120 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 09:59:15,141 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,141 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,145 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,156 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 09:59:15,157 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,157 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,170 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,173 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,177 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,184 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,188 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 09:59:15,188 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 09:59:15,188 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 09:59:15,189 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 09:59:15,189 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (1/1) ...
[2023-12-23 09:59:15,198 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 09:59:15,209 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 09:59:15,222 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 09:59:15,241 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 09:59:15,263 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 09:59:15,263 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 09:59:15,263 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 09:59:15,264 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 09:59:15,265 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 09:59:15,265 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 09:59:15,369 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 09:59:15,370 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 09:59:20,485 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 09:59:20,542 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 09:59:20,542 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 09:59:20,542 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:59:20 BoogieIcfgContainer
[2023-12-23 09:59:20,542 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 09:59:20,544 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 09:59:20,544 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 09:59:20,546 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 09:59:20,546 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:59:14" (1/3) ...
[2023-12-23 09:59:20,547 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c95bdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:59:20, skipping insertion in model container
[2023-12-23 09:59:20,547 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:59:15" (2/3) ...
[2023-12-23 09:59:20,547 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c95bdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:59:20, skipping insertion in model container
[2023-12-23 09:59:20,547 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:59:20" (3/3) ...
[2023-12-23 09:59:20,548 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-68.i
[2023-12-23 09:59:20,560 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 09:59:20,561 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 09:59:20,591 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 09:59:20,599 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;@44aee0d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 09:59:20,599 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 09:59:20,602 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 76 states, 49 states have (on average 1.469387755102041) internal successors, (72), 50 states have internal predecessors, (72), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2023-12-23 09:59:20,618 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2023-12-23 09:59:20,618 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:59:20,619 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:59:20,619 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:59:20,623 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:59:20,623 INFO  L85        PathProgramCache]: Analyzing trace with hash 1691392296, now seen corresponding path program 1 times
[2023-12-23 09:59:20,633 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:59:20,634 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11012764]
[2023-12-23 09:59:20,634 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:59:20,634 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 09:59:20,635 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:59:20,638 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 09:59:20,639 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 09:59:21,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:59:21,552 INFO  L262         TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 09:59:21,559 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 09:59:21,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked.
[2023-12-23 09:59:21,591 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 09:59:21,592 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 09:59:21,592 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11012764]
[2023-12-23 09:59:21,592 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [11012764] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 09:59:21,593 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 09:59:21,593 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 09:59:21,594 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821709624]
[2023-12-23 09:59:21,595 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 09:59:21,598 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 09:59:21,598 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 09:59:21,616 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 09:59:21,617 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 09:59:21,619 INFO  L87              Difference]: Start difference. First operand  has 76 states, 49 states have (on average 1.469387755102041) internal successors, (72), 50 states have internal predecessors, (72), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2023-12-23 09:59:21,977 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 09:59:21,978 INFO  L93              Difference]: Finished difference Result 149 states and 262 transitions.
[2023-12-23 09:59:21,993 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 09:59:21,994 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156
[2023-12-23 09:59:21,994 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 09:59:22,000 INFO  L225             Difference]: With dead ends: 149
[2023-12-23 09:59:22,000 INFO  L226             Difference]: Without dead ends: 74
[2023-12-23 09:59:22,002 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 155 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 09:59:22,005 INFO  L413           NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 09:59:22,005 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 09:59:22,018 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2023-12-23 09:59:22,037 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74.
[2023-12-23 09:59:22,038 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 48 states have internal predecessors, (67), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2023-12-23 09:59:22,039 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 115 transitions.
[2023-12-23 09:59:22,040 INFO  L78                 Accepts]: Start accepts. Automaton has 74 states and 115 transitions. Word has length 156
[2023-12-23 09:59:22,041 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 09:59:22,041 INFO  L495      AbstractCegarLoop]: Abstraction has 74 states and 115 transitions.
[2023-12-23 09:59:22,041 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2023-12-23 09:59:22,041 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 115 transitions.
[2023-12-23 09:59:22,044 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2023-12-23 09:59:22,044 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:59:22,044 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:59:22,063 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 09:59:22,260 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 09:59:22,261 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:59:22,262 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:59:22,262 INFO  L85        PathProgramCache]: Analyzing trace with hash -453271000, now seen corresponding path program 1 times
[2023-12-23 09:59:22,262 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:59:22,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617966724]
[2023-12-23 09:59:22,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:59:22,263 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 09:59:22,263 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:59:22,266 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 09:59:22,267 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 09:59:23,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:59:23,072 INFO  L262         TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-23 09:59:23,077 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 09:59:25,310 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2023-12-23 09:59:25,311 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 09:59:25,311 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 09:59:25,311 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617966724]
[2023-12-23 09:59:25,311 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617966724] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 09:59:25,311 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 09:59:25,311 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-23 09:59:25,312 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630417825]
[2023-12-23 09:59:25,312 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 09:59:25,313 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 09:59:25,313 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 09:59:25,313 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 09:59:25,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2023-12-23 09:59:25,314 INFO  L87              Difference]: Start difference. First operand 74 states and 115 transitions. Second operand  has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-23 09:59:31,392 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 09:59:31,392 INFO  L93              Difference]: Finished difference Result 320 states and 497 transitions.
[2023-12-23 09:59:31,406 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-23 09:59:31,406 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 156
[2023-12-23 09:59:31,407 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 09:59:31,409 INFO  L225             Difference]: With dead ends: 320
[2023-12-23 09:59:31,410 INFO  L226             Difference]: Without dead ends: 247
[2023-12-23 09:59:31,410 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156
[2023-12-23 09:59:31,411 INFO  L413           NwaCegarLoop]: 162 mSDtfsCounter, 344 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2023-12-23 09:59:31,412 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 491 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2023-12-23 09:59:31,412 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 247 states.
[2023-12-23 09:59:31,466 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 136.
[2023-12-23 09:59:31,466 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 136 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 85 states have internal predecessors, (115), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2023-12-23 09:59:31,467 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 211 transitions.
[2023-12-23 09:59:31,468 INFO  L78                 Accepts]: Start accepts. Automaton has 136 states and 211 transitions. Word has length 156
[2023-12-23 09:59:31,468 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 09:59:31,468 INFO  L495      AbstractCegarLoop]: Abstraction has 136 states and 211 transitions.
[2023-12-23 09:59:31,468 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-23 09:59:31,469 INFO  L276                IsEmpty]: Start isEmpty. Operand 136 states and 211 transitions.
[2023-12-23 09:59:31,470 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2023-12-23 09:59:31,470 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:59:31,470 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:59:31,487 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 09:59:31,678 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 09:59:31,678 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:59:31,679 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:59:31,679 INFO  L85        PathProgramCache]: Analyzing trace with hash -2041618902, now seen corresponding path program 1 times
[2023-12-23 09:59:31,679 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:59:31,679 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006411769]
[2023-12-23 09:59:31,680 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:59:31,680 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 09:59:31,680 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:59:31,681 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 09:59:31,681 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 09:59:32,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:59:32,504 INFO  L262         TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 09:59:32,507 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 09:59:32,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2023-12-23 09:59:32,707 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 09:59:32,707 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 09:59:32,707 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006411769]
[2023-12-23 09:59:32,707 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006411769] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 09:59:32,707 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 09:59:32,708 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 09:59:32,708 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824217306]
[2023-12-23 09:59:32,708 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 09:59:32,708 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 09:59:32,708 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 09:59:32,709 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 09:59:32,709 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 09:59:32,709 INFO  L87              Difference]: Start difference. First operand 136 states and 211 transitions. Second operand  has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-23 09:59:33,453 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 09:59:33,454 INFO  L93              Difference]: Finished difference Result 219 states and 340 transitions.
[2023-12-23 09:59:33,467 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 09:59:33,467 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 156
[2023-12-23 09:59:33,468 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 09:59:33,469 INFO  L225             Difference]: With dead ends: 219
[2023-12-23 09:59:33,469 INFO  L226             Difference]: Without dead ends: 136
[2023-12-23 09:59:33,470 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 09:59:33,471 INFO  L413           NwaCegarLoop]: 101 mSDtfsCounter, 137 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-23 09:59:33,471 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 178 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-23 09:59:33,472 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 136 states.
[2023-12-23 09:59:33,487 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136.
[2023-12-23 09:59:33,488 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 136 states, 85 states have (on average 1.3294117647058823) internal successors, (113), 85 states have internal predecessors, (113), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2023-12-23 09:59:33,489 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 209 transitions.
[2023-12-23 09:59:33,489 INFO  L78                 Accepts]: Start accepts. Automaton has 136 states and 209 transitions. Word has length 156
[2023-12-23 09:59:33,489 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 09:59:33,489 INFO  L495      AbstractCegarLoop]: Abstraction has 136 states and 209 transitions.
[2023-12-23 09:59:33,489 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-23 09:59:33,489 INFO  L276                IsEmpty]: Start isEmpty. Operand 136 states and 209 transitions.
[2023-12-23 09:59:33,491 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2023-12-23 09:59:33,491 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:59:33,491 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:59:33,514 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 09:59:33,708 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 09:59:33,709 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:59:33,709 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:59:33,709 INFO  L85        PathProgramCache]: Analyzing trace with hash 1020025536, now seen corresponding path program 1 times
[2023-12-23 09:59:33,710 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:59:33,710 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110547958]
[2023-12-23 09:59:33,710 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:59:33,710 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 09:59:33,710 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:59:33,711 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 09:59:33,714 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 09:59:34,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:59:34,524 INFO  L262         TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-12-23 09:59:34,528 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 09:59:40,693 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 417 proven. 114 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked.
[2023-12-23 09:59:40,693 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 09:59:44,487 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 09:59:44,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110547958]
[2023-12-23 09:59:44,488 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [110547958] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 09:59:44,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1734568720]
[2023-12-23 09:59:44,488 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:59:44,488 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 09:59:44,488 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 09:59:44,521 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 09:59:44,525 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2023-12-23 09:59:46,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:59:46,889 INFO  L262         TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-23 09:59:46,893 INFO  L285         TraceCheckSpWp]: Computing forward predicates...