/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_fillercodesize_ps-cn-25_file-53.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 03:46:15,099 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 03:46:15,134 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 03:46:15,138 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 03:46:15,138 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 03:46:15,152 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 03:46:15,152 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 03:46:15,152 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 03:46:15,153 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 03:46:15,153 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 03:46:15,153 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 03:46:15,154 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 03:46:15,154 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 03:46:15,154 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 03:46:15,155 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 03:46:15,155 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 03:46:15,155 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 03:46:15,155 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 03:46:15,156 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 03:46:15,156 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 03:46:15,156 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 03:46:15,157 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 03:46:15,157 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 03:46:15,157 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 03:46:15,157 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 03:46:15,158 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 03:46:15,158 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 03:46:15,158 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 03:46:15,158 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 03:46:15,158 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 03:46:15,159 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 03:46:15,159 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 03:46:15,159 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 03:46:15,159 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 03:46:15,160 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 03:46:15,160 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 03:46:15,160 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 03:46:15,160 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 03:46:15,160 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 03:46:15,161 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 03:46:15,161 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 03:46:15,161 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 03:46:15,161 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 03:46:15,161 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 03:46:15,162 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 03:46:15,162 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 03:46:15,162 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 03:46:15,359 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 03:46:15,381 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 03:46:15,383 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 03:46:15,383 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 03:46:15,384 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 03:46:15,385 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-53.i
[2023-12-23 03:46:16,569 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 03:46:16,747 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 03:46:16,748 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-53.i
[2023-12-23 03:46:16,755 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c2882856/6e936e258649430e9e35a9f5c41b58f1/FLAG94a58f398
[2023-12-23 03:46:16,768 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c2882856/6e936e258649430e9e35a9f5c41b58f1
[2023-12-23 03:46:16,770 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 03:46:16,771 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 03:46:16,772 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 03:46:16,772 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 03:46:16,775 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 03:46:16,776 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:46:16" (1/1) ...
[2023-12-23 03:46:16,777 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f00d29d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:16, skipping insertion in model container
[2023-12-23 03:46:16,777 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:46:16" (1/1) ...
[2023-12-23 03:46:16,799 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 03:46:16,935 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_fillercodesize_ps-cn-25_file-53.i[915,928]
[2023-12-23 03:46:16,979 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 03:46:16,994 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 03:46:17,003 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_fillercodesize_ps-cn-25_file-53.i[915,928]
[2023-12-23 03:46:17,026 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 03:46:17,040 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 03:46:17,040 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17 WrapperNode
[2023-12-23 03:46:17,040 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 03:46:17,041 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 03:46:17,041 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 03:46:17,041 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 03:46:17,046 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,055 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,078 INFO  L138                Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197
[2023-12-23 03:46:17,078 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 03:46:17,079 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 03:46:17,079 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 03:46:17,079 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 03:46:17,098 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,098 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,103 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,118 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 03:46:17,118 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,119 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,129 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,131 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,135 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,136 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,150 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 03:46:17,151 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 03:46:17,151 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 03:46:17,151 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 03:46:17,151 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (1/1) ...
[2023-12-23 03:46:17,155 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 03:46:17,181 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 03:46:17,205 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 03:46:17,272 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 03:46:17,284 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 03:46:17,284 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 03:46:17,284 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 03:46:17,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 03:46:17,285 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 03:46:17,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 03:46:17,383 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 03:46:17,387 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 03:46:18,026 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 03:46:18,098 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 03:46:18,098 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 03:46:18,098 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:46:18 BoogieIcfgContainer
[2023-12-23 03:46:18,099 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 03:46:18,100 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 03:46:18,100 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 03:46:18,117 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 03:46:18,117 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:46:16" (1/3) ...
[2023-12-23 03:46:18,118 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:46:18, skipping insertion in model container
[2023-12-23 03:46:18,118 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:46:17" (2/3) ...
[2023-12-23 03:46:18,118 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:46:18, skipping insertion in model container
[2023-12-23 03:46:18,118 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:46:18" (3/3) ...
[2023-12-23 03:46:18,120 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-53.i
[2023-12-23 03:46:18,138 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 03:46:18,139 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 03:46:18,187 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 03:46:18,194 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;@7b4065da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 03:46:18,195 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 03:46:18,199 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 81 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 48 states have internal predecessors, (66), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31)
[2023-12-23 03:46:18,213 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 192
[2023-12-23 03:46:18,213 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 03:46:18,214 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:18,214 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 03:46:18,221 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 03:46:18,221 INFO  L85        PathProgramCache]: Analyzing trace with hash 164228638, now seen corresponding path program 1 times
[2023-12-23 03:46:18,234 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 03:46:18,235 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893335756]
[2023-12-23 03:46:18,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:46:18,235 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 03:46:18,236 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 03:46:18,240 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 03:46:18,288 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 03:46:18,581 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:46:18,597 INFO  L262         TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 03:46:18,607 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 03:46:18,660 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 896 proven. 0 refuted. 0 times theorem prover too weak. 964 trivial. 0 not checked.
[2023-12-23 03:46:18,660 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 03:46:18,661 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 03:46:18,661 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893335756]
[2023-12-23 03:46:18,661 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [893335756] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 03:46:18,661 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 03:46:18,661 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 03:46:18,668 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256121932]
[2023-12-23 03:46:18,669 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 03:46:18,673 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 03:46:18,673 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 03:46:18,696 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 03:46:18,697 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 03:46:18,699 INFO  L87              Difference]: Start difference. First operand  has 81 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 48 states have internal predecessors, (66), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2023-12-23 03:46:18,961 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 03:46:18,961 INFO  L93              Difference]: Finished difference Result 159 states and 285 transitions.
[2023-12-23 03:46:18,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 03:46:18,976 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 191
[2023-12-23 03:46:18,977 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 03:46:18,982 INFO  L225             Difference]: With dead ends: 159
[2023-12-23 03:46:18,982 INFO  L226             Difference]: Without dead ends: 79
[2023-12-23 03:46:18,986 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 190 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 03:46:18,988 INFO  L413           NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 03:46:18,988 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 03:46:19,017 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2023-12-23 03:46:19,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79.
[2023-12-23 03:46:19,061 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 79 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31)
[2023-12-23 03:46:19,063 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 123 transitions.
[2023-12-23 03:46:19,064 INFO  L78                 Accepts]: Start accepts. Automaton has 79 states and 123 transitions. Word has length 191
[2023-12-23 03:46:19,064 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 03:46:19,064 INFO  L495      AbstractCegarLoop]: Abstraction has 79 states and 123 transitions.
[2023-12-23 03:46:19,064 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2023-12-23 03:46:19,065 INFO  L276                IsEmpty]: Start isEmpty. Operand 79 states and 123 transitions.
[2023-12-23 03:46:19,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 192
[2023-12-23 03:46:19,067 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 03:46:19,068 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:19,093 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 03:46:19,293 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 03:46:19,294 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 03:46:19,294 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 03:46:19,295 INFO  L85        PathProgramCache]: Analyzing trace with hash -1116303076, now seen corresponding path program 1 times
[2023-12-23 03:46:19,295 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 03:46:19,295 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926066630]
[2023-12-23 03:46:19,296 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:46:19,296 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 03:46:19,296 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 03:46:19,298 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 03:46:19,299 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 03:46:19,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:46:19,550 INFO  L262         TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 03:46:19,555 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 03:46:19,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2023-12-23 03:46:19,913 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 03:46:19,913 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 03:46:19,918 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926066630]
[2023-12-23 03:46:19,918 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [926066630] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 03:46:19,918 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 03:46:19,918 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 03:46:19,919 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364386710]
[2023-12-23 03:46:19,919 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 03:46:19,921 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 03:46:19,921 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 03:46:19,922 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 03:46:19,922 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 03:46:19,922 INFO  L87              Difference]: Start difference. First operand 79 states and 123 transitions. Second operand  has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-23 03:46:20,281 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 03:46:20,281 INFO  L93              Difference]: Finished difference Result 233 states and 363 transitions.
[2023-12-23 03:46:20,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 03:46:20,282 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 191
[2023-12-23 03:46:20,283 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 03:46:20,285 INFO  L225             Difference]: With dead ends: 233
[2023-12-23 03:46:20,285 INFO  L226             Difference]: Without dead ends: 155
[2023-12-23 03:46:20,286 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 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 03:46:20,286 INFO  L413           NwaCegarLoop]: 121 mSDtfsCounter, 22 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 03:46:20,287 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 232 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 03:46:20,287 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 155 states.
[2023-12-23 03:46:20,308 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153.
[2023-12-23 03:46:20,309 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 153 states, 88 states have (on average 1.2954545454545454) internal successors, (114), 88 states have internal predecessors, (114), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62)
[2023-12-23 03:46:20,310 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 238 transitions.
[2023-12-23 03:46:20,311 INFO  L78                 Accepts]: Start accepts. Automaton has 153 states and 238 transitions. Word has length 191
[2023-12-23 03:46:20,311 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 03:46:20,311 INFO  L495      AbstractCegarLoop]: Abstraction has 153 states and 238 transitions.
[2023-12-23 03:46:20,312 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-23 03:46:20,312 INFO  L276                IsEmpty]: Start isEmpty. Operand 153 states and 238 transitions.
[2023-12-23 03:46:20,313 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 193
[2023-12-23 03:46:20,314 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 03:46:20,314 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:20,332 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 03:46:20,523 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 03:46:20,523 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 03:46:20,524 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 03:46:20,524 INFO  L85        PathProgramCache]: Analyzing trace with hash -1526201470, now seen corresponding path program 1 times
[2023-12-23 03:46:20,524 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 03:46:20,524 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133021685]
[2023-12-23 03:46:20,524 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:46:20,525 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 03:46:20,525 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 03:46:20,526 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 03:46:20,551 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 03:46:20,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:46:20,752 INFO  L262         TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 03:46:20,757 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 03:46:21,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2023-12-23 03:46:21,448 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 03:46:21,449 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 03:46:21,449 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133021685]
[2023-12-23 03:46:21,449 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [133021685] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 03:46:21,449 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 03:46:21,449 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 03:46:21,449 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549122979]
[2023-12-23 03:46:21,449 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 03:46:21,450 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 03:46:21,450 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 03:46:21,451 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 03:46:21,451 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-23 03:46:21,451 INFO  L87              Difference]: Start difference. First operand 153 states and 238 transitions. Second operand  has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-23 03:46:22,104 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 03:46:22,104 INFO  L93              Difference]: Finished difference Result 382 states and 592 transitions.
[2023-12-23 03:46:22,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-23 03:46:22,119 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 192
[2023-12-23 03:46:22,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 03:46:22,121 INFO  L225             Difference]: With dead ends: 382
[2023-12-23 03:46:22,121 INFO  L226             Difference]: Without dead ends: 230
[2023-12-23 03:46:22,122 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-23 03:46:22,123 INFO  L413           NwaCegarLoop]: 118 mSDtfsCounter, 82 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-23 03:46:22,123 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 402 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-23 03:46:22,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 230 states.
[2023-12-23 03:46:22,144 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 214.
[2023-12-23 03:46:22,144 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 214 states, 117 states have (on average 1.264957264957265) internal successors, (148), 117 states have internal predecessors, (148), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93)
[2023-12-23 03:46:22,146 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 334 transitions.
[2023-12-23 03:46:22,146 INFO  L78                 Accepts]: Start accepts. Automaton has 214 states and 334 transitions. Word has length 192
[2023-12-23 03:46:22,147 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 03:46:22,147 INFO  L495      AbstractCegarLoop]: Abstraction has 214 states and 334 transitions.
[2023-12-23 03:46:22,147 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-23 03:46:22,147 INFO  L276                IsEmpty]: Start isEmpty. Operand 214 states and 334 transitions.
[2023-12-23 03:46:22,149 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 193
[2023-12-23 03:46:22,149 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 03:46:22,149 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:22,160 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 03:46:22,358 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 03:46:22,358 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 03:46:22,359 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 03:46:22,359 INFO  L85        PathProgramCache]: Analyzing trace with hash 1401871900, now seen corresponding path program 1 times
[2023-12-23 03:46:22,360 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 03:46:22,360 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498159133]
[2023-12-23 03:46:22,360 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:46:22,360 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 03:46:22,360 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 03:46:22,361 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 03:46:22,386 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 03:46:22,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:46:22,607 INFO  L262         TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 03:46:22,611 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 03:46:22,630 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2023-12-23 03:46:22,630 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 03:46:22,630 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 03:46:22,630 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498159133]
[2023-12-23 03:46:22,630 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498159133] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 03:46:22,630 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 03:46:22,630 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 03:46:22,631 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637903730]
[2023-12-23 03:46:22,631 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 03:46:22,631 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 03:46:22,631 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 03:46:22,632 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 03:46:22,632 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 03:46:22,632 INFO  L87              Difference]: Start difference. First operand 214 states and 334 transitions. Second operand  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-23 03:46:23,179 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 03:46:23,179 INFO  L93              Difference]: Finished difference Result 450 states and 700 transitions.
[2023-12-23 03:46:23,182 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 03:46:23,183 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 192
[2023-12-23 03:46:23,183 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 03:46:23,185 INFO  L225             Difference]: With dead ends: 450
[2023-12-23 03:46:23,185 INFO  L226             Difference]: Without dead ends: 298
[2023-12-23 03:46:23,186 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 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 03:46:23,187 INFO  L413           NwaCegarLoop]: 228 mSDtfsCounter, 116 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 03:46:23,187 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 339 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 03:46:23,188 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2023-12-23 03:46:23,207 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 216.
[2023-12-23 03:46:23,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 216 states, 119 states have (on average 1.2605042016806722) internal successors, (150), 119 states have internal predecessors, (150), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93)
[2023-12-23 03:46:23,209 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 336 transitions.
[2023-12-23 03:46:23,209 INFO  L78                 Accepts]: Start accepts. Automaton has 216 states and 336 transitions. Word has length 192
[2023-12-23 03:46:23,209 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 03:46:23,210 INFO  L495      AbstractCegarLoop]: Abstraction has 216 states and 336 transitions.
[2023-12-23 03:46:23,210 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-23 03:46:23,210 INFO  L276                IsEmpty]: Start isEmpty. Operand 216 states and 336 transitions.
[2023-12-23 03:46:23,211 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 193
[2023-12-23 03:46:23,211 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 03:46:23,212 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:23,221 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 (5)] Ended with exit code 0
[2023-12-23 03:46:23,420 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 03:46:23,421 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 03:46:23,421 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 03:46:23,421 INFO  L85        PathProgramCache]: Analyzing trace with hash 1459130202, now seen corresponding path program 1 times
[2023-12-23 03:46:23,422 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 03:46:23,422 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909117192]
[2023-12-23 03:46:23,422 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:46:23,422 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 03:46:23,422 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 03:46:23,423 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 03:46:23,425 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 03:46:23,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:46:23,655 INFO  L262         TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-23 03:46:23,659 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 03:46:23,838 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 960 proven. 45 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked.
[2023-12-23 03:46:23,838 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 03:46:24,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 45 proven. 45 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked.
[2023-12-23 03:46:24,035 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 03:46:24,035 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909117192]
[2023-12-23 03:46:24,035 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [909117192] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 03:46:24,035 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 03:46:24,035 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12
[2023-12-23 03:46:24,035 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222208057]
[2023-12-23 03:46:24,035 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 03:46:24,036 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-23 03:46:24,036 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 03:46:24,036 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-23 03:46:24,036 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2023-12-23 03:46:24,037 INFO  L87              Difference]: Start difference. First operand 216 states and 336 transitions. Second operand  has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47)
[2023-12-23 03:46:25,683 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 03:46:25,684 INFO  L93              Difference]: Finished difference Result 481 states and 727 transitions.
[2023-12-23 03:46:25,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2023-12-23 03:46:25,687 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 192
[2023-12-23 03:46:25,688 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 03:46:25,689 INFO  L225             Difference]: With dead ends: 481
[2023-12-23 03:46:25,689 INFO  L226             Difference]: Without dead ends: 327
[2023-12-23 03:46:25,690 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992
[2023-12-23 03:46:25,691 INFO  L413           NwaCegarLoop]: 166 mSDtfsCounter, 328 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2023-12-23 03:46:25,691 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 624 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2023-12-23 03:46:25,692 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 327 states.
[2023-12-23 03:46:25,736 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 226.
[2023-12-23 03:46:25,737 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 226 states, 126 states have (on average 1.2380952380952381) internal successors, (156), 126 states have internal predecessors, (156), 93 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93)
[2023-12-23 03:46:25,739 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 342 transitions.
[2023-12-23 03:46:25,739 INFO  L78                 Accepts]: Start accepts. Automaton has 226 states and 342 transitions. Word has length 192
[2023-12-23 03:46:25,743 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 03:46:25,744 INFO  L495      AbstractCegarLoop]: Abstraction has 226 states and 342 transitions.
[2023-12-23 03:46:25,746 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47)
[2023-12-23 03:46:25,749 INFO  L276                IsEmpty]: Start isEmpty. Operand 226 states and 342 transitions.
[2023-12-23 03:46:25,754 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 194
[2023-12-23 03:46:25,754 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 03:46:25,755 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:25,788 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 03:46:25,955 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 03:46:25,957 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 03:46:25,957 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 03:46:25,957 INFO  L85        PathProgramCache]: Analyzing trace with hash 498015678, now seen corresponding path program 1 times
[2023-12-23 03:46:25,957 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 03:46:25,958 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615911402]
[2023-12-23 03:46:25,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:46:25,958 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 03:46:25,958 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 03:46:25,973 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 03:46:25,983 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 03:46:26,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:46:26,212 INFO  L262         TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-12-23 03:46:26,217 INFO  L285         TraceCheckSpWp]: Computing forward predicates...