/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-53.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 07:29:39,308 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 07:29:39,379 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 07:29:39,382 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 07:29:39,382 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 07:29:39,395 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 07:29:39,397 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 07:29:39,397 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 07:29:39,397 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 07:29:39,398 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 07:29:39,398 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 07:29:39,398 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 07:29:39,398 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 07:29:39,399 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 07:29:39,399 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 07:29:39,399 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 07:29:39,400 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 07:29:39,400 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 07:29:39,400 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 07:29:39,400 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 07:29:39,400 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 07:29:39,404 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 07:29:39,404 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 07:29:39,404 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 07:29:39,404 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 07:29:39,405 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 07:29:39,405 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 07:29:39,405 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 07:29:39,405 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 07:29:39,405 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 07:29:39,405 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 07:29:39,406 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 07:29:39,406 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 07:29:39,406 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 07:29:39,406 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 07:29:39,406 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 07:29:39,406 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 07:29:39,407 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 07:29:39,407 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 07:29:39,407 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 07:29:39,407 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 07:29:39,408 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 07:29:39,408 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 07:29:39,408 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 07:29:39,408 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 07:29:39,409 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 07:29:39,409 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 07:29:39,601 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 07:29:39,621 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 07:29:39,623 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 07:29:39,624 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 07:29:39,624 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 07:29:39,626 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-53.i
[2023-12-23 07:29:40,676 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 07:29:40,839 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 07:29:40,839 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-53.i
[2023-12-23 07:29:40,845 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/007169904/baa5ca77624f4db68e8e8c6cc2b8bd35/FLAG40470002c
[2023-12-23 07:29:40,855 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/007169904/baa5ca77624f4db68e8e8c6cc2b8bd35
[2023-12-23 07:29:40,857 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 07:29:40,858 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 07:29:40,859 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 07:29:40,859 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 07:29:40,867 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 07:29:40,868 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:29:40" (1/1) ...
[2023-12-23 07:29:40,869 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203e83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:40, skipping insertion in model container
[2023-12-23 07:29:40,869 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:29:40" (1/1) ...
[2023-12-23 07:29:40,898 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 07:29:41,025 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-53.i[919,932]
[2023-12-23 07:29:41,072 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 07:29:41,084 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 07:29:41,095 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-53.i[919,932]
[2023-12-23 07:29:41,124 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 07:29:41,137 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 07:29:41,137 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41 WrapperNode
[2023-12-23 07:29:41,137 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 07:29:41,138 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 07:29:41,138 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 07:29:41,138 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 07:29:41,143 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,152 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,176 INFO  L138                Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 187
[2023-12-23 07:29:41,176 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 07:29:41,177 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 07:29:41,177 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 07:29:41,177 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 07:29:41,187 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,187 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,191 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,220 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-23 07:29:41,221 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,221 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,235 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,238 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,245 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,261 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,264 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 07:29:41,265 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 07:29:41,265 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 07:29:41,265 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 07:29:41,266 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (1/1) ...
[2023-12-23 07:29:41,274 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 07:29:41,283 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 07:29:41,293 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-23 07:29:41,317 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-23 07:29:41,350 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 07:29:41,350 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 07:29:41,350 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 07:29:41,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 07:29:41,351 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 07:29:41,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 07:29:41,410 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 07:29:41,412 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 07:29:42,956 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 07:29:42,992 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 07:29:42,992 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 07:29:42,993 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:29:42 BoogieIcfgContainer
[2023-12-23 07:29:42,993 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 07:29:42,994 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 07:29:42,994 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 07:29:43,019 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 07:29:43,020 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:29:40" (1/3) ...
[2023-12-23 07:29:43,020 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c765bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:29:43, skipping insertion in model container
[2023-12-23 07:29:43,020 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:29:41" (2/3) ...
[2023-12-23 07:29:43,021 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c765bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:29:43, skipping insertion in model container
[2023-12-23 07:29:43,021 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:29:42" (3/3) ...
[2023-12-23 07:29:43,022 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-53.i
[2023-12-23 07:29:43,036 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 07:29:43,036 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 07:29:43,094 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 07:29:43,098 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;@21fd418e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 07:29:43,099 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 07:29:43,102 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 75 states, 49 states have (on average 1.530612244897959) internal successors, (75), 50 states have internal predecessors, (75), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2023-12-23 07:29:43,111 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2023-12-23 07:29:43,112 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:29:43,112 INFO  L195           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 07:29:43,113 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:29:43,118 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:29:43,119 INFO  L85        PathProgramCache]: Analyzing trace with hash -1429333276, now seen corresponding path program 1 times
[2023-12-23 07:29:43,134 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:29:43,134 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393069583]
[2023-12-23 07:29:43,134 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:29:43,135 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:29:43,135 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:29:43,137 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 07:29:43,162 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 07:29:43,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:29:43,432 INFO  L262         TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 07:29:43,439 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:29:43,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 528 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked.
[2023-12-23 07:29:43,483 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:29:43,484 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:29:43,484 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393069583]
[2023-12-23 07:29:43,484 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393069583] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:29:43,484 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:29:43,484 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 07:29:43,486 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097374908]
[2023-12-23 07:29:43,486 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:29:43,489 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 07:29:43,489 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:29:43,516 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 07:29:43,517 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 07:29:43,519 INFO  L87              Difference]: Start difference. First operand  has 75 states, 49 states have (on average 1.530612244897959) internal successors, (75), 50 states have internal predecessors, (75), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) 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, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)
[2023-12-23 07:29:43,735 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:29:43,735 INFO  L93              Difference]: Finished difference Result 147 states and 263 transitions.
[2023-12-23 07:29:43,751 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 07:29:43,752 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, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 151
[2023-12-23 07:29:43,752 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:29:43,758 INFO  L225             Difference]: With dead ends: 147
[2023-12-23 07:29:43,758 INFO  L226             Difference]: Without dead ends: 73
[2023-12-23 07:29:43,760 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 07:29:43,763 INFO  L413           NwaCegarLoop]: 112 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, 112 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 07:29:43,763 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 07:29:43,774 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2023-12-23 07:29:43,792 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73.
[2023-12-23 07:29:43,793 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 73 states, 48 states have (on average 1.4375) internal successors, (69), 48 states have internal predecessors, (69), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2023-12-23 07:29:43,794 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 115 transitions.
[2023-12-23 07:29:43,795 INFO  L78                 Accepts]: Start accepts. Automaton has 73 states and 115 transitions. Word has length 151
[2023-12-23 07:29:43,795 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:29:43,795 INFO  L495      AbstractCegarLoop]: Abstraction has 73 states and 115 transitions.
[2023-12-23 07:29:43,796 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, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)
[2023-12-23 07:29:43,796 INFO  L276                IsEmpty]: Start isEmpty. Operand 73 states and 115 transitions.
[2023-12-23 07:29:43,798 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2023-12-23 07:29:43,798 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:29:43,798 INFO  L195           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 07:29:43,815 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 07:29:44,007 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:29:44,008 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:29:44,008 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:29:44,009 INFO  L85        PathProgramCache]: Analyzing trace with hash 354486556, now seen corresponding path program 1 times
[2023-12-23 07:29:44,009 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:29:44,009 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060812414]
[2023-12-23 07:29:44,009 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:29:44,010 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:29:44,010 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:29:44,011 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 07:29:44,033 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-23 07:29:44,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:29:44,294 INFO  L262         TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 07:29:44,298 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:29:44,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2023-12-23 07:29:44,345 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:29:44,345 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:29:44,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060812414]
[2023-12-23 07:29:44,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060812414] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:29:44,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:29:44,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 07:29:44,346 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983816307]
[2023-12-23 07:29:44,346 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:29:44,347 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 07:29:44,347 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:29:44,347 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 07:29:44,348 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 07:29:44,348 INFO  L87              Difference]: Start difference. First operand 73 states and 115 transitions. Second operand  has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2023-12-23 07:29:44,710 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:29:44,711 INFO  L93              Difference]: Finished difference Result 213 states and 335 transitions.
[2023-12-23 07:29:44,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 07:29:44,711 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 151
[2023-12-23 07:29:44,712 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:29:44,713 INFO  L225             Difference]: With dead ends: 213
[2023-12-23 07:29:44,713 INFO  L226             Difference]: Without dead ends: 141
[2023-12-23 07:29:44,714 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 07:29:44,715 INFO  L413           NwaCegarLoop]: 111 mSDtfsCounter, 98 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 07:29:44,715 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 208 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 07:29:44,716 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 141 states.
[2023-12-23 07:29:44,732 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139.
[2023-12-23 07:29:44,733 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 139 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2023-12-23 07:29:44,735 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 216 transitions.
[2023-12-23 07:29:44,735 INFO  L78                 Accepts]: Start accepts. Automaton has 139 states and 216 transitions. Word has length 151
[2023-12-23 07:29:44,736 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:29:44,736 INFO  L495      AbstractCegarLoop]: Abstraction has 139 states and 216 transitions.
[2023-12-23 07:29:44,736 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2023-12-23 07:29:44,736 INFO  L276                IsEmpty]: Start isEmpty. Operand 139 states and 216 transitions.
[2023-12-23 07:29:44,738 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2023-12-23 07:29:44,738 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:29:44,738 INFO  L195           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 07:29:44,761 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 07:29:44,947 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:29:44,948 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:29:44,948 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:29:44,948 INFO  L85        PathProgramCache]: Analyzing trace with hash -433234210, now seen corresponding path program 1 times
[2023-12-23 07:29:44,949 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:29:44,949 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979483141]
[2023-12-23 07:29:44,949 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:29:44,949 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:29:44,949 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:29:44,950 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 07:29:44,961 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-23 07:29:45,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:29:45,202 INFO  L262         TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 07:29:45,212 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:29:45,868 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2023-12-23 07:29:45,868 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:29:45,868 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:29:45,868 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979483141]
[2023-12-23 07:29:45,868 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979483141] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:29:45,869 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:29:45,869 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 07:29:45,869 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324695272]
[2023-12-23 07:29:45,869 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:29:45,869 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 07:29:45,869 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:29:45,870 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 07:29:45,870 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-23 07:29:45,870 INFO  L87              Difference]: Start difference. First operand 139 states and 216 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, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2023-12-23 07:29:46,597 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:29:46,597 INFO  L93              Difference]: Finished difference Result 346 states and 534 transitions.
[2023-12-23 07:29:46,610 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-23 07:29:46,611 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, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 152
[2023-12-23 07:29:46,611 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:29:46,613 INFO  L225             Difference]: With dead ends: 346
[2023-12-23 07:29:46,613 INFO  L226             Difference]: Without dead ends: 208
[2023-12-23 07:29:46,614 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-23 07:29:46,615 INFO  L413           NwaCegarLoop]: 110 mSDtfsCounter, 95 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-23 07:29:46,615 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 383 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-23 07:29:46,616 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 208 states.
[2023-12-23 07:29:46,634 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 181.
[2023-12-23 07:29:46,634 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 181 states, 108 states have (on average 1.3148148148148149) internal successors, (142), 108 states have internal predecessors, (142), 69 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69)
[2023-12-23 07:29:46,636 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 280 transitions.
[2023-12-23 07:29:46,636 INFO  L78                 Accepts]: Start accepts. Automaton has 181 states and 280 transitions. Word has length 152
[2023-12-23 07:29:46,637 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:29:46,637 INFO  L495      AbstractCegarLoop]: Abstraction has 181 states and 280 transitions.
[2023-12-23 07:29:46,637 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, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2023-12-23 07:29:46,637 INFO  L276                IsEmpty]: Start isEmpty. Operand 181 states and 280 transitions.
[2023-12-23 07:29:46,638 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2023-12-23 07:29:46,639 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:29:46,639 INFO  L195           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 07:29:46,650 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-23 07:29:46,839 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:29:46,840 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:29:46,840 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:29:46,840 INFO  L85        PathProgramCache]: Analyzing trace with hash -1393962620, now seen corresponding path program 1 times
[2023-12-23 07:29:46,841 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:29:46,841 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814862095]
[2023-12-23 07:29:46,841 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:29:46,841 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:29:46,841 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:29:46,842 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 07:29:46,860 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-23 07:29:47,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:29:47,091 INFO  L262         TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 07:29:47,095 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:29:47,114 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2023-12-23 07:29:47,115 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:29:47,115 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:29:47,115 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814862095]
[2023-12-23 07:29:47,115 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [814862095] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:29:47,115 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:29:47,115 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 07:29:47,115 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241918981]
[2023-12-23 07:29:47,116 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:29:47,116 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 07:29:47,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:29:47,117 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 07:29:47,117 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 07:29:47,117 INFO  L87              Difference]: Start difference. First operand 181 states and 280 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, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2023-12-23 07:29:47,987 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:29:47,987 INFO  L93              Difference]: Finished difference Result 395 states and 610 transitions.
[2023-12-23 07:29:47,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 07:29:47,990 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, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 152
[2023-12-23 07:29:47,991 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:29:47,992 INFO  L225             Difference]: With dead ends: 395
[2023-12-23 07:29:47,992 INFO  L226             Difference]: Without dead ends: 257
[2023-12-23 07:29:47,993 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 07:29:47,994 INFO  L413           NwaCegarLoop]: 200 mSDtfsCounter, 102 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-23 07:29:47,994 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 297 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-23 07:29:47,995 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 257 states.
[2023-12-23 07:29:48,012 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 183.
[2023-12-23 07:29:48,013 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 183 states, 110 states have (on average 1.309090909090909) internal successors, (144), 110 states have internal predecessors, (144), 69 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69)
[2023-12-23 07:29:48,014 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 282 transitions.
[2023-12-23 07:29:48,015 INFO  L78                 Accepts]: Start accepts. Automaton has 183 states and 282 transitions. Word has length 152
[2023-12-23 07:29:48,015 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:29:48,015 INFO  L495      AbstractCegarLoop]: Abstraction has 183 states and 282 transitions.
[2023-12-23 07:29:48,015 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, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2023-12-23 07:29:48,015 INFO  L276                IsEmpty]: Start isEmpty. Operand 183 states and 282 transitions.
[2023-12-23 07:29:48,016 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2023-12-23 07:29:48,016 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:29:48,017 INFO  L195           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 07:29:48,034 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-23 07:29:48,226 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:29:48,226 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:29:48,227 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:29:48,227 INFO  L85        PathProgramCache]: Analyzing trace with hash 1621140998, now seen corresponding path program 1 times
[2023-12-23 07:29:48,227 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:29:48,227 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468063033]
[2023-12-23 07:29:48,227 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:29:48,228 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:29:48,228 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:29:48,229 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 07:29:48,231 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-23 07:29:48,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:29:48,514 INFO  L262         TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-23 07:29:48,518 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:29:48,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 472 proven. 21 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked.
[2023-12-23 07:29:48,671 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 07:29:48,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 45 proven. 21 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked.
[2023-12-23 07:29:48,848 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:29:48,848 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468063033]
[2023-12-23 07:29:48,849 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [468063033] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 07:29:48,849 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 07:29:48,849 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12
[2023-12-23 07:29:48,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531560426]
[2023-12-23 07:29:48,849 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 07:29:48,850 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-23 07:29:48,850 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:29:48,850 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-23 07:29:48,850 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2023-12-23 07:29:48,851 INFO  L87              Difference]: Start difference. First operand 183 states and 282 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, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2023-12-23 07:29:50,472 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:29:50,472 INFO  L93              Difference]: Finished difference Result 426 states and 637 transitions.
[2023-12-23 07:29:50,476 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2023-12-23 07:29:50,477 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, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 152
[2023-12-23 07:29:50,477 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:29:50,479 INFO  L225             Difference]: With dead ends: 426
[2023-12-23 07:29:50,479 INFO  L226             Difference]: Without dead ends: 286
[2023-12-23 07:29:50,480 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 294 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 07:29:50,481 INFO  L413           NwaCegarLoop]: 153 mSDtfsCounter, 426 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2023-12-23 07:29:50,481 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 595 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2023-12-23 07:29:50,481 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 286 states.
[2023-12-23 07:29:50,502 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 193.
[2023-12-23 07:29:50,503 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 193 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 117 states have internal predecessors, (150), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69)
[2023-12-23 07:29:50,508 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions.
[2023-12-23 07:29:50,509 INFO  L78                 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 152
[2023-12-23 07:29:50,510 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:29:50,510 INFO  L495      AbstractCegarLoop]: Abstraction has 193 states and 288 transitions.
[2023-12-23 07:29:50,512 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, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2023-12-23 07:29:50,516 INFO  L276                IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions.
[2023-12-23 07:29:50,518 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2023-12-23 07:29:50,518 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:29:50,518 INFO  L195           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 07:29:50,531 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 07:29:50,732 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 07:29:50,732 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:29:50,733 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:29:50,733 INFO  L85        PathProgramCache]: Analyzing trace with hash -2029690440, now seen corresponding path program 1 times
[2023-12-23 07:29:50,734 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:29:50,734 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605896392]
[2023-12-23 07:29:50,734 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:29:50,734 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 07:29:50,734 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:29:50,735 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 07:29:50,770 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 07:29:51,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:29:51,030 INFO  L262         TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-23 07:29:51,035 INFO  L285         TraceCheckSpWp]: Computing forward predicates...