/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-ci_file-52.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 14:22:10,189 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 14:22:10,242 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 14:22:10,245 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 14:22:10,245 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 14:22:10,273 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 14:22:10,273 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 14:22:10,274 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 14:22:10,274 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 14:22:10,274 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 14:22:10,275 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 14:22:10,275 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 14:22:10,275 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 14:22:10,276 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 14:22:10,276 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 14:22:10,276 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 14:22:10,276 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 14:22:10,277 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 14:22:10,277 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 14:22:10,277 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 14:22:10,277 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 14:22:10,281 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 14:22:10,281 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 14:22:10,281 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 14:22:10,284 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 14:22:10,284 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 14:22:10,284 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 14:22:10,285 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 14:22:10,285 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 14:22:10,285 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 14:22:10,285 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 14:22:10,285 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 14:22:10,285 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 14:22:10,286 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 14:22:10,286 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:22:10,286 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 14:22:10,286 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 14:22:10,286 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 14:22:10,286 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 14:22:10,286 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 14:22:10,286 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 14:22:10,287 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 14:22:10,287 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 14:22:10,287 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 14:22:10,288 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 14:22:10,288 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 14:22:10,288 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 14:22:10,484 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 14:22:10,497 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 14:22:10,499 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 14:22:10,499 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 14:22:10,500 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 14:22:10,500 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-52.i
[2023-12-23 14:22:11,575 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 14:22:11,726 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 14:22:11,727 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-52.i
[2023-12-23 14:22:11,733 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08ee985f/9024fd63b0894a75abbc8fd506bda6bd/FLAG3bf71005a
[2023-12-23 14:22:11,743 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08ee985f/9024fd63b0894a75abbc8fd506bda6bd
[2023-12-23 14:22:11,745 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 14:22:11,746 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 14:22:11,747 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 14:22:11,747 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 14:22:11,750 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 14:22:11,751 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:22:11" (1/1) ...
[2023-12-23 14:22:11,751 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32557e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:11, skipping insertion in model container
[2023-12-23 14:22:11,751 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:22:11" (1/1) ...
[2023-12-23 14:22:11,773 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 14:22:11,869 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-ci_file-52.i[919,932]
[2023-12-23 14:22:11,927 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:22:11,945 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 14:22:11,953 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-ci_file-52.i[919,932]
[2023-12-23 14:22:11,976 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:22:12,004 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 14:22:12,005 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12 WrapperNode
[2023-12-23 14:22:12,005 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 14:22:12,006 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 14:22:12,006 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 14:22:12,006 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 14:22:12,011 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,026 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,054 INFO  L138                Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 167
[2023-12-23 14:22:12,054 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 14:22:12,055 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 14:22:12,055 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 14:22:12,055 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 14:22:12,063 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,063 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,066 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,085 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 14:22:12,085 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,086 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,092 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,095 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,096 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,098 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,100 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 14:22:12,101 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 14:22:12,101 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 14:22:12,101 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 14:22:12,101 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (1/1) ...
[2023-12-23 14:22:12,120 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:22:12,129 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 14:22:12,158 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 14:22:12,160 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 14:22:12,206 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 14:22:12,206 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 14:22:12,206 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 14:22:12,207 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 14:22:12,207 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 14:22:12,208 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 14:22:12,279 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 14:22:12,281 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 14:22:13,173 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 14:22:13,234 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 14:22:13,234 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 14:22:13,234 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:22:13 BoogieIcfgContainer
[2023-12-23 14:22:13,234 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 14:22:13,236 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 14:22:13,236 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 14:22:13,238 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 14:22:13,238 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:22:11" (1/3) ...
[2023-12-23 14:22:13,239 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7361b18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:22:13, skipping insertion in model container
[2023-12-23 14:22:13,239 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:22:12" (2/3) ...
[2023-12-23 14:22:13,239 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7361b18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:22:13, skipping insertion in model container
[2023-12-23 14:22:13,239 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:22:13" (3/3) ...
[2023-12-23 14:22:13,240 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-52.i
[2023-12-23 14:22:13,251 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 14:22:13,251 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 14:22:13,280 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 14:22:13,285 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;@15e47814, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 14:22:13,285 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 14:22:13,288 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 66 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 47 states have internal predecessors, (70), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-23 14:22:13,296 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2023-12-23 14:22:13,296 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:22:13,297 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:13,297 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:22:13,301 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:22:13,301 INFO  L85        PathProgramCache]: Analyzing trace with hash -171486153, now seen corresponding path program 1 times
[2023-12-23 14:22:13,310 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:22:13,310 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515696729]
[2023-12-23 14:22:13,310 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:22:13,311 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 14:22:13,311 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:22:13,316 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 14:22:13,319 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 14:22:13,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:22:13,540 INFO  L262         TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 14:22:13,548 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:22:13,592 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked.
[2023-12-23 14:22:13,595 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:22:13,596 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:22:13,596 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515696729]
[2023-12-23 14:22:13,597 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515696729] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:22:13,597 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:22:13,597 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 14:22:13,599 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811226233]
[2023-12-23 14:22:13,602 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:22:13,609 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 14:22:13,609 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:22:13,645 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 14:22:13,647 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 14:22:13,652 INFO  L87              Difference]: Start difference. First operand  has 66 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 47 states have internal predecessors, (70), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-23 14:22:13,735 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:22:13,735 INFO  L93              Difference]: Finished difference Result 129 states and 223 transitions.
[2023-12-23 14:22:13,741 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 14:22:13,743 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 118
[2023-12-23 14:22:13,743 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:22:13,750 INFO  L225             Difference]: With dead ends: 129
[2023-12-23 14:22:13,750 INFO  L226             Difference]: Without dead ends: 64
[2023-12-23 14:22:13,753 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 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 14:22:13,756 INFO  L413           NwaCegarLoop]: 96 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, 96 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 14:22:13,757 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 14:22:13,767 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2023-12-23 14:22:13,781 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2023-12-23 14:22:13,782 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 45 states have internal predecessors, (65), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-23 14:22:13,783 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 99 transitions.
[2023-12-23 14:22:13,784 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 99 transitions. Word has length 118
[2023-12-23 14:22:13,784 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:22:13,785 INFO  L495      AbstractCegarLoop]: Abstraction has 64 states and 99 transitions.
[2023-12-23 14:22:13,785 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-23 14:22:13,785 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 99 transitions.
[2023-12-23 14:22:13,788 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2023-12-23 14:22:13,788 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:22:13,788 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:13,806 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 14:22:13,995 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 14:22:13,996 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:22:13,996 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:22:13,996 INFO  L85        PathProgramCache]: Analyzing trace with hash 1599479549, now seen corresponding path program 1 times
[2023-12-23 14:22:13,997 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:22:13,997 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770831861]
[2023-12-23 14:22:13,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:22:13,997 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 14:22:13,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:22:13,999 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 14:22:14,006 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 14:22:14,197 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:22:14,205 INFO  L262         TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 14:22:14,208 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:22:14,352 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-23 14:22:14,352 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:22:14,352 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:22:14,353 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770831861]
[2023-12-23 14:22:14,353 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [770831861] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:22:14,353 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:22:14,353 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 14:22:14,353 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901699841]
[2023-12-23 14:22:14,353 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:22:14,354 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 14:22:14,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:22:14,355 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 14:22:14,355 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 14:22:14,355 INFO  L87              Difference]: Start difference. First operand 64 states and 99 transitions. Second operand  has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-23 14:22:14,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:22:14,415 INFO  L93              Difference]: Finished difference Result 173 states and 269 transitions.
[2023-12-23 14:22:14,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 14:22:14,415 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 118
[2023-12-23 14:22:14,416 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:22:14,417 INFO  L225             Difference]: With dead ends: 173
[2023-12-23 14:22:14,417 INFO  L226             Difference]: Without dead ends: 110
[2023-12-23 14:22:14,418 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 14:22:14,419 INFO  L413           NwaCegarLoop]: 92 mSDtfsCounter, 19 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 14:22:14,419 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 180 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 14:22:14,420 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2023-12-23 14:22:14,434 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 99.
[2023-12-23 14:22:14,434 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 99 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 62 states have internal predecessors, (82), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 14:22:14,436 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 150 transitions.
[2023-12-23 14:22:14,436 INFO  L78                 Accepts]: Start accepts. Automaton has 99 states and 150 transitions. Word has length 118
[2023-12-23 14:22:14,437 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:22:14,437 INFO  L495      AbstractCegarLoop]: Abstraction has 99 states and 150 transitions.
[2023-12-23 14:22:14,437 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-23 14:22:14,437 INFO  L276                IsEmpty]: Start isEmpty. Operand 99 states and 150 transitions.
[2023-12-23 14:22:14,438 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2023-12-23 14:22:14,438 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:22:14,438 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:14,447 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 (3)] Ended with exit code 0
[2023-12-23 14:22:14,648 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 14:22:14,648 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:22:14,649 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:22:14,649 INFO  L85        PathProgramCache]: Analyzing trace with hash 2090527435, now seen corresponding path program 1 times
[2023-12-23 14:22:14,650 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:22:14,650 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967721943]
[2023-12-23 14:22:14,650 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:22:14,650 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 14:22:14,650 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:22:14,651 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 14:22:14,656 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 14:22:14,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:22:14,848 INFO  L262         TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 14:22:14,851 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:22:15,006 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 24 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked.
[2023-12-23 14:22:15,007 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 14:22:15,200 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 24 proven. 24 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2023-12-23 14:22:15,201 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:22:15,204 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967721943]
[2023-12-23 14:22:15,204 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [967721943] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 14:22:15,206 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 14:22:15,209 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 14:22:15,209 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683772997]
[2023-12-23 14:22:15,210 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 14:22:15,211 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 14:22:15,211 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:22:15,212 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 14:22:15,212 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 14:22:15,212 INFO  L87              Difference]: Start difference. First operand 99 states and 150 transitions. Second operand  has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 14:22:15,566 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:22:15,566 INFO  L93              Difference]: Finished difference Result 174 states and 258 transitions.
[2023-12-23 14:22:15,566 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 14:22:15,567 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 119
[2023-12-23 14:22:15,567 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:22:15,568 INFO  L225             Difference]: With dead ends: 174
[2023-12-23 14:22:15,568 INFO  L226             Difference]: Without dead ends: 111
[2023-12-23 14:22:15,568 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 14:22:15,569 INFO  L413           NwaCegarLoop]: 89 mSDtfsCounter, 161 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 14:22:15,569 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 206 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 14:22:15,570 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 111 states.
[2023-12-23 14:22:15,578 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107.
[2023-12-23 14:22:15,578 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 107 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 68 states have internal predecessors, (87), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 14:22:15,579 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions.
[2023-12-23 14:22:15,579 INFO  L78                 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 119
[2023-12-23 14:22:15,580 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:22:15,580 INFO  L495      AbstractCegarLoop]: Abstraction has 107 states and 155 transitions.
[2023-12-23 14:22:15,580 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 14:22:15,580 INFO  L276                IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions.
[2023-12-23 14:22:15,581 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2023-12-23 14:22:15,581 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:22:15,581 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:15,595 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 14:22:15,788 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 14:22:15,789 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:22:15,790 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:22:15,790 INFO  L85        PathProgramCache]: Analyzing trace with hash 1902556722, now seen corresponding path program 1 times
[2023-12-23 14:22:15,790 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:22:15,790 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568287641]
[2023-12-23 14:22:15,790 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:22:15,790 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 14:22:15,790 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:22:15,791 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 14:22:15,796 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 14:22:16,000 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:22:16,011 INFO  L262         TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 14:22:16,014 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:22:16,151 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-23 14:22:16,151 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:22:16,151 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:22:16,153 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568287641]
[2023-12-23 14:22:16,153 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568287641] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:22:16,153 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:22:16,153 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 14:22:16,153 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037432896]
[2023-12-23 14:22:16,153 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:22:16,154 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 14:22:16,155 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:22:16,156 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 14:22:16,156 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 14:22:16,156 INFO  L87              Difference]: Start difference. First operand 107 states and 155 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-23 14:22:16,596 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:22:16,597 INFO  L93              Difference]: Finished difference Result 185 states and 273 transitions.
[2023-12-23 14:22:16,602 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 14:22:16,603 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 120
[2023-12-23 14:22:16,603 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:22:16,604 INFO  L225             Difference]: With dead ends: 185
[2023-12-23 14:22:16,604 INFO  L226             Difference]: Without dead ends: 118
[2023-12-23 14:22:16,605 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 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 14:22:16,605 INFO  L413           NwaCegarLoop]: 93 mSDtfsCounter, 15 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-23 14:22:16,605 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 179 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-23 14:22:16,606 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2023-12-23 14:22:16,614 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 109.
[2023-12-23 14:22:16,614 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 109 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 70 states have internal predecessors, (89), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 14:22:16,615 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions.
[2023-12-23 14:22:16,615 INFO  L78                 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 120
[2023-12-23 14:22:16,615 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:22:16,616 INFO  L495      AbstractCegarLoop]: Abstraction has 109 states and 157 transitions.
[2023-12-23 14:22:16,636 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-23 14:22:16,636 INFO  L276                IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions.
[2023-12-23 14:22:16,641 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2023-12-23 14:22:16,641 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:22:16,641 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:16,656 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 14:22:16,841 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 14:22:16,842 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:22:16,842 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:22:16,842 INFO  L85        PathProgramCache]: Analyzing trace with hash 213612980, now seen corresponding path program 1 times
[2023-12-23 14:22:16,843 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:22:16,843 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25192844]
[2023-12-23 14:22:16,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:22:16,843 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 14:22:16,843 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:22:16,845 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 14:22:16,847 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 14:22:17,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:22:17,057 INFO  L262         TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 14:22:17,059 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:22:17,078 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-23 14:22:17,078 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:22:17,078 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:22:17,078 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25192844]
[2023-12-23 14:22:17,079 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [25192844] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:22:17,079 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:22:17,079 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 14:22:17,079 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422861272]
[2023-12-23 14:22:17,079 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:22:17,079 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 14:22:17,079 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:22:17,080 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 14:22:17,080 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 14:22:17,080 INFO  L87              Difference]: Start difference. First operand 109 states and 157 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-23 14:22:17,119 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:22:17,119 INFO  L93              Difference]: Finished difference Result 175 states and 255 transitions.
[2023-12-23 14:22:17,122 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 14:22:17,122 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 120
[2023-12-23 14:22:17,122 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:22:17,123 INFO  L225             Difference]: With dead ends: 175
[2023-12-23 14:22:17,123 INFO  L226             Difference]: Without dead ends: 108
[2023-12-23 14:22:17,123 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 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 14:22:17,124 INFO  L413           NwaCegarLoop]: 90 mSDtfsCounter, 18 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 14:22:17,124 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 161 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 14:22:17,125 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2023-12-23 14:22:17,133 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108.
[2023-12-23 14:22:17,133 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 108 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 69 states have internal predecessors, (86), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 14:22:17,134 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions.
[2023-12-23 14:22:17,134 INFO  L78                 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 120
[2023-12-23 14:22:17,134 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:22:17,135 INFO  L495      AbstractCegarLoop]: Abstraction has 108 states and 154 transitions.
[2023-12-23 14:22:17,135 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-23 14:22:17,135 INFO  L276                IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions.
[2023-12-23 14:22:17,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2023-12-23 14:22:17,136 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:22:17,136 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:17,162 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 (6)] Ended with exit code 0
[2023-12-23 14:22:17,344 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 14:22:17,344 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:22:17,345 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:22:17,345 INFO  L85        PathProgramCache]: Analyzing trace with hash -1018537292, now seen corresponding path program 1 times
[2023-12-23 14:22:17,345 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:22:17,345 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122503304]
[2023-12-23 14:22:17,346 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:22:17,346 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 14:22:17,346 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:22:17,347 INFO  L229       MonitoredProcess]: Starting monitored process 7 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 14:22:17,348 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 (7)] Waiting until timeout for monitored process
[2023-12-23 14:22:17,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:22:17,735 INFO  L262         TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 36 conjunts are in the unsatisfiable core
[2023-12-23 14:22:17,740 INFO  L285         TraceCheckSpWp]: Computing forward predicates...