/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-ci_file-58.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 07:31:43,081 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 07:31:43,147 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 07:31:43,152 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 07:31:43,153 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 07:31:43,173 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 07:31:43,174 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 07:31:43,174 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 07:31:43,174 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 07:31:43,177 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 07:31:43,177 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 07:31:43,177 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 07:31:43,178 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 07:31:43,179 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 07:31:43,179 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 07:31:43,179 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 07:31:43,179 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 07:31:43,179 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 07:31:43,180 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 07:31:43,180 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 07:31:43,181 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 07:31:43,181 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 07:31:43,181 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 07:31:43,181 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 07:31:43,181 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 07:31:43,181 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 07:31:43,182 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 07:31:43,182 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 07:31:43,182 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 07:31:43,182 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 07:31:43,183 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 07:31:43,183 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 07:31:43,183 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 07:31:43,183 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 07:31:43,183 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 07:31:43,183 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 07:31:43,183 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 07:31:43,183 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 07:31:43,184 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 07:31:43,184 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 07:31:43,184 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 07:31:43,184 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 07:31:43,184 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 07:31:43,184 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 07:31:43,184 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 07:31:43,184 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 07:31:43,185 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 07:31:43,360 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 07:31:43,380 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 07:31:43,382 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 07:31:43,382 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 07:31:43,383 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 07:31:43,384 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-58.i
[2023-12-23 07:31:44,405 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 07:31:44,576 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 07:31:44,576 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-58.i
[2023-12-23 07:31:44,591 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684ee3bfd/4985858f90154244a3cf3c45b4783568/FLAG06f389e2b
[2023-12-23 07:31:44,605 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684ee3bfd/4985858f90154244a3cf3c45b4783568
[2023-12-23 07:31:44,607 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 07:31:44,608 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 07:31:44,610 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 07:31:44,611 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 07:31:44,614 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 07:31:44,614 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,615 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b9aca5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44, skipping insertion in model container
[2023-12-23 07:31:44,615 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,649 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 07:31:44,762 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-ci_file-58.i[919,932]
[2023-12-23 07:31:44,816 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 07:31:44,830 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 07:31:44,840 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-ci_file-58.i[919,932]
[2023-12-23 07:31:44,862 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 07:31:44,878 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 07:31:44,879 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44 WrapperNode
[2023-12-23 07:31:44,879 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 07:31:44,880 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 07:31:44,880 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 07:31:44,881 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 07:31:44,885 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,904 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,932 INFO  L138                Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 184
[2023-12-23 07:31:44,932 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 07:31:44,933 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 07:31:44,933 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 07:31:44,933 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 07:31:44,941 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,942 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,944 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,956 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 07:31:44,956 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,956 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,967 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,972 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,974 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,975 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,977 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 07:31:44,978 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 07:31:44,978 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 07:31:44,978 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 07:31:44,979 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (1/1) ...
[2023-12-23 07:31:44,992 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 07:31:45,002 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 07:31:45,036 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 07:31:45,078 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 07:31:45,085 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 07:31:45,086 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 07:31:45,086 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 07:31:45,087 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 07:31:45,087 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 07:31:45,087 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 07:31:45,182 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 07:31:45,185 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 07:31:45,592 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 07:31:45,649 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 07:31:45,649 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 07:31:45,650 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:31:45 BoogieIcfgContainer
[2023-12-23 07:31:45,650 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 07:31:45,652 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 07:31:45,652 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 07:31:45,655 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 07:31:45,655 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:31:44" (1/3) ...
[2023-12-23 07:31:45,656 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a161ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:31:45, skipping insertion in model container
[2023-12-23 07:31:45,656 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:31:44" (2/3) ...
[2023-12-23 07:31:45,656 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a161ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:31:45, skipping insertion in model container
[2023-12-23 07:31:45,656 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:31:45" (3/3) ...
[2023-12-23 07:31:45,657 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-58.i
[2023-12-23 07:31:45,669 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 07:31:45,669 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 07:31:45,714 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 07:31:45,720 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;@4ed477c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 07:31:45,720 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 07:31:45,723 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 76 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 48 states have internal predecessors, (72), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 07:31:45,736 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 165
[2023-12-23 07:31:45,736 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:31:45,737 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:45,739 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:31:45,744 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:31:45,745 INFO  L85        PathProgramCache]: Analyzing trace with hash -2135302460, now seen corresponding path program 1 times
[2023-12-23 07:31:45,757 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:31:45,758 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98106303]
[2023-12-23 07:31:45,758 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:31:45,758 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 07:31:45,759 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:31:45,762 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 07:31:45,790 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 07:31:45,974 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:31:45,986 INFO  L262         TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 07:31:45,995 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:31:46,050 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked.
[2023-12-23 07:31:46,050 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:31:46,050 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:31:46,051 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98106303]
[2023-12-23 07:31:46,051 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [98106303] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:31:46,051 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:31:46,051 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 07:31:46,053 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195427389]
[2023-12-23 07:31:46,055 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:31:46,058 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 07:31:46,058 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:31:46,083 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 07:31:46,083 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 07:31:46,085 INFO  L87              Difference]: Start difference. First operand  has 76 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 48 states have internal predecessors, (72), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand  has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 07:31:46,147 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:31:46,147 INFO  L93              Difference]: Finished difference Result 149 states and 272 transitions.
[2023-12-23 07:31:46,152 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 07:31:46,154 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164
[2023-12-23 07:31:46,154 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:31:46,159 INFO  L225             Difference]: With dead ends: 149
[2023-12-23 07:31:46,159 INFO  L226             Difference]: Without dead ends: 74
[2023-12-23 07:31:46,161 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 163 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 07:31:46,163 INFO  L413           NwaCegarLoop]: 114 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, 114 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 07:31:46,164 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 07:31:46,174 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2023-12-23 07:31:46,189 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74.
[2023-12-23 07:31:46,190 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 46 states have internal predecessors, (65), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 07:31:46,191 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 117 transitions.
[2023-12-23 07:31:46,192 INFO  L78                 Accepts]: Start accepts. Automaton has 74 states and 117 transitions. Word has length 164
[2023-12-23 07:31:46,193 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:31:46,193 INFO  L495      AbstractCegarLoop]: Abstraction has 74 states and 117 transitions.
[2023-12-23 07:31:46,193 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 07:31:46,193 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 117 transitions.
[2023-12-23 07:31:46,195 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 166
[2023-12-23 07:31:46,195 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:31:46,195 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:46,203 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 07:31:46,403 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 07:31:46,403 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:31:46,404 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:31:46,404 INFO  L85        PathProgramCache]: Analyzing trace with hash -1650626521, now seen corresponding path program 1 times
[2023-12-23 07:31:46,406 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:31:46,406 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338352144]
[2023-12-23 07:31:46,406 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:31:46,406 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 07:31:46,406 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:31:46,407 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 07:31:46,408 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 07:31:46,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:31:46,622 INFO  L262         TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 07:31:46,626 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:31:46,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2023-12-23 07:31:46,932 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:31:46,932 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:31:46,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338352144]
[2023-12-23 07:31:46,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338352144] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:31:46,932 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:31:46,932 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 07:31:46,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059603401]
[2023-12-23 07:31:46,933 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:31:46,934 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 07:31:46,934 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:31:46,934 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 07:31:46,934 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 07:31:46,935 INFO  L87              Difference]: Start difference. First operand 74 states and 117 transitions. Second operand  has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-23 07:31:47,142 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:31:47,143 INFO  L93              Difference]: Finished difference Result 172 states and 272 transitions.
[2023-12-23 07:31:47,144 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 07:31:47,145 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 165
[2023-12-23 07:31:47,145 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:31:47,146 INFO  L225             Difference]: With dead ends: 172
[2023-12-23 07:31:47,146 INFO  L226             Difference]: Without dead ends: 99
[2023-12-23 07:31:47,147 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 07:31:47,148 INFO  L413           NwaCegarLoop]: 107 mSDtfsCounter, 24 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 07:31:47,151 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 197 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 07:31:47,152 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2023-12-23 07:31:47,158 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91.
[2023-12-23 07:31:47,159 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 63 states have internal predecessors, (92), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 07:31:47,159 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 144 transitions.
[2023-12-23 07:31:47,159 INFO  L78                 Accepts]: Start accepts. Automaton has 91 states and 144 transitions. Word has length 165
[2023-12-23 07:31:47,162 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:31:47,162 INFO  L495      AbstractCegarLoop]: Abstraction has 91 states and 144 transitions.
[2023-12-23 07:31:47,162 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-23 07:31:47,162 INFO  L276                IsEmpty]: Start isEmpty. Operand 91 states and 144 transitions.
[2023-12-23 07:31:47,164 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 166
[2023-12-23 07:31:47,164 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:31:47,164 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:47,174 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 07:31:47,376 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 07:31:47,379 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:31:47,380 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:31:47,380 INFO  L85        PathProgramCache]: Analyzing trace with hash 650196069, now seen corresponding path program 1 times
[2023-12-23 07:31:47,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:31:47,380 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241755318]
[2023-12-23 07:31:47,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:31:47,381 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 07:31:47,381 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:31:47,382 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 07:31:47,385 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 07:31:47,529 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:31:47,538 INFO  L262         TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 07:31:47,542 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:31:47,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2023-12-23 07:31:47,756 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:31:47,756 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:31:47,756 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241755318]
[2023-12-23 07:31:47,756 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [241755318] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:31:47,757 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:31:47,757 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 07:31:47,757 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669240543]
[2023-12-23 07:31:47,757 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:31:47,757 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 07:31:47,757 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:31:47,758 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 07:31:47,758 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 07:31:47,758 INFO  L87              Difference]: Start difference. First operand 91 states and 144 transitions. Second operand  has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-23 07:31:47,818 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:31:47,818 INFO  L93              Difference]: Finished difference Result 254 states and 403 transitions.
[2023-12-23 07:31:47,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 07:31:47,819 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 165
[2023-12-23 07:31:47,820 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:31:47,821 INFO  L225             Difference]: With dead ends: 254
[2023-12-23 07:31:47,821 INFO  L226             Difference]: Without dead ends: 164
[2023-12-23 07:31:47,822 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 07:31:47,822 INFO  L413           NwaCegarLoop]: 146 mSDtfsCounter, 29 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 07:31:47,823 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 254 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 07:31:47,823 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 164 states.
[2023-12-23 07:31:47,848 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162.
[2023-12-23 07:31:47,849 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 162 states, 107 states have (on average 1.4299065420560748) internal successors, (153), 107 states have internal predecessors, (153), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-23 07:31:47,850 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 257 transitions.
[2023-12-23 07:31:47,850 INFO  L78                 Accepts]: Start accepts. Automaton has 162 states and 257 transitions. Word has length 165
[2023-12-23 07:31:47,851 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:31:47,851 INFO  L495      AbstractCegarLoop]: Abstraction has 162 states and 257 transitions.
[2023-12-23 07:31:47,851 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-23 07:31:47,851 INFO  L276                IsEmpty]: Start isEmpty. Operand 162 states and 257 transitions.
[2023-12-23 07:31:47,852 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 167
[2023-12-23 07:31:47,852 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:31:47,853 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:47,862 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 07:31:48,053 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 07:31:48,056 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:31:48,056 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:31:48,056 INFO  L85        PathProgramCache]: Analyzing trace with hash 128361408, now seen corresponding path program 1 times
[2023-12-23 07:31:48,057 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:31:48,057 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473512761]
[2023-12-23 07:31:48,057 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:31:48,057 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 07:31:48,057 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:31:48,058 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 07:31:48,073 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 07:31:48,206 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:31:48,216 INFO  L262         TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 07:31:48,219 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:31:48,264 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked.
[2023-12-23 07:31:48,265 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:31:48,265 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:31:48,265 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473512761]
[2023-12-23 07:31:48,265 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473512761] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:31:48,265 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:31:48,265 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-23 07:31:48,265 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755356799]
[2023-12-23 07:31:48,265 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:31:48,266 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 07:31:48,266 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:31:48,266 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 07:31:48,266 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-23 07:31:48,267 INFO  L87              Difference]: Start difference. First operand 162 states and 257 transitions. Second operand  has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-23 07:31:48,445 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:31:48,445 INFO  L93              Difference]: Finished difference Result 339 states and 527 transitions.
[2023-12-23 07:31:48,450 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 07:31:48,450 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 166
[2023-12-23 07:31:48,451 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:31:48,452 INFO  L225             Difference]: With dead ends: 339
[2023-12-23 07:31:48,452 INFO  L226             Difference]: Without dead ends: 178
[2023-12-23 07:31:48,453 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2023-12-23 07:31:48,454 INFO  L413           NwaCegarLoop]: 83 mSDtfsCounter, 79 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 07:31:48,454 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 196 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 07:31:48,455 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 178 states.
[2023-12-23 07:31:48,466 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 170.
[2023-12-23 07:31:48,467 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 170 states, 113 states have (on average 1.3893805309734513) internal successors, (157), 113 states have internal predecessors, (157), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-23 07:31:48,468 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 261 transitions.
[2023-12-23 07:31:48,468 INFO  L78                 Accepts]: Start accepts. Automaton has 170 states and 261 transitions. Word has length 166
[2023-12-23 07:31:48,468 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:31:48,469 INFO  L495      AbstractCegarLoop]: Abstraction has 170 states and 261 transitions.
[2023-12-23 07:31:48,469 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-23 07:31:48,469 INFO  L276                IsEmpty]: Start isEmpty. Operand 170 states and 261 transitions.
[2023-12-23 07:31:48,470 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 167
[2023-12-23 07:31:48,470 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:31:48,470 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:48,480 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-23 07:31:48,678 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:31:48,678 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:31:48,679 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:31:48,679 INFO  L85        PathProgramCache]: Analyzing trace with hash 130208450, now seen corresponding path program 1 times
[2023-12-23 07:31:48,679 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:31:48,679 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725156138]
[2023-12-23 07:31:48,680 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:31:48,680 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 07:31:48,680 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:31:48,681 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 07:31:48,682 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 07:31:48,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:31:48,964 INFO  L262         TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 39 conjunts are in the unsatisfiable core
[2023-12-23 07:31:48,970 INFO  L285         TraceCheckSpWp]: Computing forward predicates...