/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 15:29:33,909 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 15:29:34,009 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 15:29:34,013 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 15:29:34,014 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 15:29:34,041 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 15:29:34,042 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 15:29:34,042 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 15:29:34,043 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 15:29:34,047 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 15:29:34,047 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 15:29:34,047 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 15:29:34,048 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 15:29:34,049 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 15:29:34,049 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 15:29:34,050 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 15:29:34,050 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 15:29:34,050 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 15:29:34,051 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 15:29:34,051 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 15:29:34,051 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 15:29:34,051 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 15:29:34,052 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 15:29:34,052 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 15:29:34,052 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 15:29:34,052 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 15:29:34,053 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 15:29:34,053 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 15:29:34,053 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 15:29:34,053 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 15:29:34,055 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 15:29:34,055 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 15:29:34,055 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 15:29:34,055 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 15:29:34,055 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 15:29:34,056 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 15:29:34,056 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 15:29:34,056 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 15:29:34,057 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 15:29:34,057 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 15:29:34,057 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 15:29:34,058 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 15:29:34,058 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 15:29:34,058 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 15:29:34,058 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 15:29:34,058 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 15:29:34,059 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 15:29:34,307 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 15:29:34,327 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 15:29:34,329 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 15:29:34,330 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 15:29:34,330 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 15:29:34,332 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i
[2023-12-23 15:29:35,489 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 15:29:35,682 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 15:29:35,683 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i
[2023-12-23 15:29:35,691 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2a68480/6dfa413d08344757920ba8e9b2fb975d/FLAG2e77f7049
[2023-12-23 15:29:35,705 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2a68480/6dfa413d08344757920ba8e9b2fb975d
[2023-12-23 15:29:35,707 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 15:29:35,708 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 15:29:35,709 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 15:29:35,709 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 15:29:35,714 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 15:29:35,715 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:29:35" (1/1) ...
[2023-12-23 15:29:35,715 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368b302c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:35, skipping insertion in model container
[2023-12-23 15:29:35,716 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:29:35" (1/1) ...
[2023-12-23 15:29:35,764 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 15:29:35,895 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i[919,932]
[2023-12-23 15:29:35,955 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 15:29:35,968 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 15:29:35,979 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i[919,932]
[2023-12-23 15:29:36,013 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 15:29:36,031 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 15:29:36,032 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36 WrapperNode
[2023-12-23 15:29:36,032 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 15:29:36,032 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 15:29:36,033 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 15:29:36,033 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 15:29:36,038 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,060 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,092 INFO  L138                Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 233
[2023-12-23 15:29:36,093 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 15:29:36,094 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 15:29:36,094 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 15:29:36,094 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 15:29:36,118 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,119 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,123 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,145 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-23 15:29:36,145 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,145 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,165 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,169 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,175 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,177 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,180 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 15:29:36,181 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 15:29:36,181 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 15:29:36,181 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 15:29:36,182 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (1/1) ...
[2023-12-23 15:29:36,188 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 15:29:36,199 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 15:29:36,210 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-23 15:29:36,220 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-23 15:29:36,241 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 15:29:36,241 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 15:29:36,241 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 15:29:36,242 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 15:29:36,243 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 15:29:36,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 15:29:36,355 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 15:29:36,357 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 15:29:36,963 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 15:29:36,998 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 15:29:36,998 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 15:29:36,998 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:29:36 BoogieIcfgContainer
[2023-12-23 15:29:36,998 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 15:29:37,000 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 15:29:37,000 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 15:29:37,003 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 15:29:37,003 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:29:35" (1/3) ...
[2023-12-23 15:29:37,004 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a293ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:29:37, skipping insertion in model container
[2023-12-23 15:29:37,004 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:29:36" (2/3) ...
[2023-12-23 15:29:37,004 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a293ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:29:37, skipping insertion in model container
[2023-12-23 15:29:37,004 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:29:36" (3/3) ...
[2023-12-23 15:29:37,005 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i
[2023-12-23 15:29:37,019 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 15:29:37,020 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 15:29:37,056 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 15:29:37,063 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;@528ec558, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 15:29:37,063 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 15:29:37,067 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 102 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 57 states have internal predecessors, (81), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2023-12-23 15:29:37,082 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2023-12-23 15:29:37,083 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:29:37,084 INFO  L195           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 15:29:37,084 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:29:37,089 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:29:37,089 INFO  L85        PathProgramCache]: Analyzing trace with hash -1576655976, now seen corresponding path program 1 times
[2023-12-23 15:29:37,100 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:29:37,100 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150518622]
[2023-12-23 15:29:37,100 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:29:37,101 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:29:37,101 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:29:37,105 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 15:29:37,110 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 15:29:37,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:29:37,421 INFO  L262         TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 15:29:37,436 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:29:37,513 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 2920 trivial. 0 not checked.
[2023-12-23 15:29:37,513 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:29:37,514 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:29:37,514 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150518622]
[2023-12-23 15:29:37,514 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150518622] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:29:37,514 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:29:37,514 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 15:29:37,519 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459532684]
[2023-12-23 15:29:37,521 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:29:37,525 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 15:29:37,525 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:29:37,553 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 15:29:37,554 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 15:29:37,556 INFO  L87              Difference]: Start difference. First operand  has 102 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 57 states have internal predecessors, (81), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)
[2023-12-23 15:29:37,631 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:29:37,631 INFO  L93              Difference]: Finished difference Result 201 states and 375 transitions.
[2023-12-23 15:29:37,636 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 15:29:37,637 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 258
[2023-12-23 15:29:37,637 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:29:37,644 INFO  L225             Difference]: With dead ends: 201
[2023-12-23 15:29:37,644 INFO  L226             Difference]: Without dead ends: 100
[2023-12-23 15:29:37,648 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 15:29:37,651 INFO  L413           NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 15:29:37,652 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 15:29:37,665 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2023-12-23 15:29:37,691 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100.
[2023-12-23 15:29:37,692 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 100 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 55 states have internal predecessors, (76), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2023-12-23 15:29:37,694 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 162 transitions.
[2023-12-23 15:29:37,696 INFO  L78                 Accepts]: Start accepts. Automaton has 100 states and 162 transitions. Word has length 258
[2023-12-23 15:29:37,696 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:29:37,696 INFO  L495      AbstractCegarLoop]: Abstraction has 100 states and 162 transitions.
[2023-12-23 15:29:37,696 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)
[2023-12-23 15:29:37,696 INFO  L276                IsEmpty]: Start isEmpty. Operand 100 states and 162 transitions.
[2023-12-23 15:29:37,701 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2023-12-23 15:29:37,701 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:29:37,702 INFO  L195           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 15:29:37,714 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 15:29:37,911 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:29:37,912 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:29:37,912 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:29:37,913 INFO  L85        PathProgramCache]: Analyzing trace with hash 1361629394, now seen corresponding path program 1 times
[2023-12-23 15:29:37,914 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:29:37,914 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076860038]
[2023-12-23 15:29:37,914 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:29:37,914 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:29:37,914 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:29:37,916 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 15:29:37,919 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-23 15:29:38,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:29:38,188 INFO  L262         TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 15:29:38,198 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:29:38,476 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1716 proven. 45 refuted. 0 times theorem prover too weak. 1851 trivial. 0 not checked.
[2023-12-23 15:29:38,477 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 15:29:38,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 81 proven. 45 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2023-12-23 15:29:38,711 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:29:38,715 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076860038]
[2023-12-23 15:29:38,716 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076860038] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 15:29:38,716 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 15:29:38,716 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-23 15:29:38,717 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054533964]
[2023-12-23 15:29:38,717 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 15:29:38,722 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 15:29:38,722 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:29:38,723 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 15:29:38,724 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-23 15:29:38,724 INFO  L87              Difference]: Start difference. First operand 100 states and 162 transitions. Second operand  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59)
[2023-12-23 15:29:39,544 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:29:39,544 INFO  L93              Difference]: Finished difference Result 314 states and 498 transitions.
[2023-12-23 15:29:39,546 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2023-12-23 15:29:39,546 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 258
[2023-12-23 15:29:39,548 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:29:39,550 INFO  L225             Difference]: With dead ends: 314
[2023-12-23 15:29:39,550 INFO  L226             Difference]: Without dead ends: 215
[2023-12-23 15:29:39,552 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 508 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2023-12-23 15:29:39,553 INFO  L413           NwaCegarLoop]: 174 mSDtfsCounter, 327 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-23 15:29:39,553 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 451 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-23 15:29:39,554 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2023-12-23 15:29:39,615 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 205.
[2023-12-23 15:29:39,615 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 205 states, 114 states have (on average 1.3421052631578947) internal successors, (153), 114 states have internal predecessors, (153), 86 states have call successors, (86), 4 states have call predecessors, (86), 4 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86)
[2023-12-23 15:29:39,618 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 325 transitions.
[2023-12-23 15:29:39,618 INFO  L78                 Accepts]: Start accepts. Automaton has 205 states and 325 transitions. Word has length 258
[2023-12-23 15:29:39,619 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:29:39,619 INFO  L495      AbstractCegarLoop]: Abstraction has 205 states and 325 transitions.
[2023-12-23 15:29:39,620 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59)
[2023-12-23 15:29:39,620 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 325 transitions.
[2023-12-23 15:29:39,624 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2023-12-23 15:29:39,624 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:29:39,624 INFO  L195           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 15:29:39,640 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-23 15:29:39,834 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:29:39,834 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:29:39,835 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:29:39,835 INFO  L85        PathProgramCache]: Analyzing trace with hash 81765716, now seen corresponding path program 1 times
[2023-12-23 15:29:39,836 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:29:39,836 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140291054]
[2023-12-23 15:29:39,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:29:39,837 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:29:39,837 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:29:39,838 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 15:29:39,853 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-23 15:29:40,111 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:29:40,122 INFO  L262         TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 15:29:40,129 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:29:40,348 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1848 proven. 63 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked.
[2023-12-23 15:29:40,349 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 15:29:40,514 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:29:40,515 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140291054]
[2023-12-23 15:29:40,515 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [140291054] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 15:29:40,515 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [75291233]
[2023-12-23 15:29:40,515 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:29:40,516 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 15:29:40,516 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 15:29:40,570 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 15:29:40,571 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-23 15:29:44,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:29:44,278 INFO  L262         TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 15:29:44,284 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:29:44,501 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1848 proven. 63 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked.
[2023-12-23 15:29:44,502 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 15:29:44,724 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [75291233] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 15:29:44,724 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 15:29:44,724 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2023-12-23 15:29:44,724 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113257671]
[2023-12-23 15:29:44,725 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 15:29:44,725 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 15:29:44,725 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:29:44,726 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 15:29:44,726 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-12-23 15:29:44,727 INFO  L87              Difference]: Start difference. First operand 205 states and 325 transitions. Second operand  has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)
[2023-12-23 15:29:45,069 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:29:45,070 INFO  L93              Difference]: Finished difference Result 425 states and 663 transitions.
[2023-12-23 15:29:45,077 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 15:29:45,078 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 258
[2023-12-23 15:29:45,081 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:29:45,083 INFO  L225             Difference]: With dead ends: 425
[2023-12-23 15:29:45,083 INFO  L226             Difference]: Without dead ends: 221
[2023-12-23 15:29:45,084 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 552 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2023-12-23 15:29:45,085 INFO  L413           NwaCegarLoop]: 109 mSDtfsCounter, 70 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 15:29:45,085 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 241 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 15:29:45,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 221 states.
[2023-12-23 15:29:45,125 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 213.
[2023-12-23 15:29:45,126 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 213 states, 120 states have (on average 1.2916666666666667) internal successors, (155), 120 states have internal predecessors, (155), 86 states have call successors, (86), 6 states have call predecessors, (86), 6 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86)
[2023-12-23 15:29:45,128 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 327 transitions.
[2023-12-23 15:29:45,128 INFO  L78                 Accepts]: Start accepts. Automaton has 213 states and 327 transitions. Word has length 258
[2023-12-23 15:29:45,129 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:29:45,129 INFO  L495      AbstractCegarLoop]: Abstraction has 213 states and 327 transitions.
[2023-12-23 15:29:45,129 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)
[2023-12-23 15:29:45,130 INFO  L276                IsEmpty]: Start isEmpty. Operand 213 states and 327 transitions.
[2023-12-23 15:29:45,133 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 261
[2023-12-23 15:29:45,133 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:29:45,133 INFO  L195           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 15:29:45,147 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-23 15:29:45,348 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2023-12-23 15:29:45,541 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 15:29:45,542 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:29:45,542 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:29:45,543 INFO  L85        PathProgramCache]: Analyzing trace with hash -799485153, now seen corresponding path program 1 times
[2023-12-23 15:29:45,543 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:29:45,543 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298201225]
[2023-12-23 15:29:45,544 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:29:45,544 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 15:29:45,544 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:29:45,548 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 15:29:45,569 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-23 15:29:45,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:29:45,981 INFO  L262         TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 38 conjunts are in the unsatisfiable core
[2023-12-23 15:29:45,990 INFO  L285         TraceCheckSpWp]: Computing forward predicates...