/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-89.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 08:20:52,508 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 08:20:52,562 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 08:20:52,565 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 08:20:52,566 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 08:20:52,582 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 08:20:52,582 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 08:20:52,583 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 08:20:52,583 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 08:20:52,583 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 08:20:52,583 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 08:20:52,584 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 08:20:52,584 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 08:20:52,584 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 08:20:52,585 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 08:20:52,585 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 08:20:52,585 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 08:20:52,585 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 08:20:52,586 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 08:20:52,586 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 08:20:52,586 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 08:20:52,590 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 08:20:52,590 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 08:20:52,590 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 08:20:52,590 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 08:20:52,590 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 08:20:52,591 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 08:20:52,591 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 08:20:52,591 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 08:20:52,592 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 08:20:52,593 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 08:20:52,593 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 08:20:52,593 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 08:20:52,593 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 08:20:52,593 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:20:52,593 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 08:20:52,593 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 08:20:52,594 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 08:20:52,594 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 08:20:52,594 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 08:20:52,594 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 08:20:52,595 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 08:20:52,595 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 08:20:52,595 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 08:20:52,595 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:20:52,778 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 08:20:52,798 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 08:20:52,800 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 08:20:52,801 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 08:20:52,801 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 08:20:52,802 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-89.i
[2024-11-03 08:20:54,055 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 08:20:54,237 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 08:20:54,238 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-89.i
[2024-11-03 08:20:54,249 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b28f0cb08/9543af9f0c424d94ae3d4ca80cd0007d/FLAG81a8d8dcb
[2024-11-03 08:20:54,614 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b28f0cb08/9543af9f0c424d94ae3d4ca80cd0007d
[2024-11-03 08:20:54,617 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 08:20:54,618 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 08:20:54,619 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 08:20:54,619 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 08:20:54,624 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 08:20:54,625 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:20:54" (1/1) ...
[2024-11-03 08:20:54,626 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145137a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:54, skipping insertion in model container
[2024-11-03 08:20:54,626 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:20:54" (1/1) ...
[2024-11-03 08:20:54,673 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 08:20:54,806 WARN  L250   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_operatoramount_amount250_file-89.i[916,929]
[2024-11-03 08:20:54,929 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:20:54,951 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 08:20:54,960 WARN  L250   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_operatoramount_amount250_file-89.i[916,929]
[2024-11-03 08:20:55,004 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:20:55,020 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 08:20:55,021 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55 WrapperNode
[2024-11-03 08:20:55,021 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 08:20:55,022 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 08:20:55,022 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 08:20:55,022 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 08:20:55,027 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,042 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,074 INFO  L138                Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 339
[2024-11-03 08:20:55,075 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 08:20:55,075 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 08:20:55,076 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 08:20:55,076 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 08:20:55,084 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,084 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,092 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,122 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].
[2024-11-03 08:20:55,122 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,122 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,140 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,144 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,148 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,150 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,155 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 08:20:55,156 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 08:20:55,156 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 08:20:55,157 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 08:20:55,157 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (1/1) ...
[2024-11-03 08:20:55,166 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:20:55,177 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 08:20:55,190 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)
[2024-11-03 08:20:55,192 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
[2024-11-03 08:20:55,210 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 08:20:55,210 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 08:20:55,210 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 08:20:55,210 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 08:20:55,211 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 08:20:55,211 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 08:20:55,294 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 08:20:55,296 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 08:21:01,671 INFO  L?                        ?]: Removed 44 outVars from TransFormulas that were not future-live.
[2024-11-03 08:21:01,671 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 08:21:01,686 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 08:21:01,686 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 08:21:01,687 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:21:01 BoogieIcfgContainer
[2024-11-03 08:21:01,687 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 08:21:01,690 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 08:21:01,690 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 08:21:01,693 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 08:21:01,693 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:20:54" (1/3) ...
[2024-11-03 08:21:01,694 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7571b305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:21:01, skipping insertion in model container
[2024-11-03 08:21:01,694 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:20:55" (2/3) ...
[2024-11-03 08:21:01,694 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7571b305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:21:01, skipping insertion in model container
[2024-11-03 08:21:01,695 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:21:01" (3/3) ...
[2024-11-03 08:21:01,696 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-89.i
[2024-11-03 08:21:01,709 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 08:21:01,709 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 08:21:01,758 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 08:21:01,763 INFO  L333      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, 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;@7ce70548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 08:21:01,763 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 08:21:01,769 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 147 states, 101 states have (on average 1.5346534653465347) internal successors, (155), 102 states have internal predecessors, (155), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-03 08:21:01,782 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-03 08:21:01,783 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:21:01,784 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:21:01,784 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:21:01,788 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:21:01,788 INFO  L85        PathProgramCache]: Analyzing trace with hash -344873712, now seen corresponding path program 1 times
[2024-11-03 08:21:01,794 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:21:01,794 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476440939]
[2024-11-03 08:21:01,795 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:21:01,796 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
[2024-11-03 08:21:01,796 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:21:01,799 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)
[2024-11-03 08:21:01,801 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
[2024-11-03 08:21:02,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:21:02,471 INFO  L255         TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 08:21:02,485 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:21:02,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked.
[2024-11-03 08:21:02,533 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:21:03,677 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked.
[2024-11-03 08:21:03,678 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:21:03,678 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476440939]
[2024-11-03 08:21:03,679 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1476440939] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 08:21:03,679 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 08:21:03,679 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-03 08:21:03,680 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091334543]
[2024-11-03 08:21:03,681 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 08:21:03,685 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 08:21:03,685 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:21:03,710 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 08:21:03,710 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 08:21:03,712 INFO  L87              Difference]: Start difference. First operand  has 147 states, 101 states have (on average 1.5346534653465347) internal successors, (155), 102 states have internal predecessors, (155), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43)
[2024-11-03 08:21:03,742 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:21:03,743 INFO  L93              Difference]: Finished difference Result 287 states and 519 transitions.
[2024-11-03 08:21:03,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 08:21:03,746 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) Word has length 283
[2024-11-03 08:21:03,746 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:21:03,757 INFO  L225             Difference]: With dead ends: 287
[2024-11-03 08:21:03,758 INFO  L226             Difference]: Without dead ends: 143
[2024-11-03 08:21:03,762 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 08:21:03,767 INFO  L432           NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 08:21:03,768 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 08:21:03,781 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 143 states.
[2024-11-03 08:21:03,810 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143.
[2024-11-03 08:21:03,811 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 143 states, 98 states have (on average 1.510204081632653) internal successors, (148), 98 states have internal predecessors, (148), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-03 08:21:03,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 234 transitions.
[2024-11-03 08:21:03,815 INFO  L78                 Accepts]: Start accepts. Automaton has 143 states and 234 transitions. Word has length 283
[2024-11-03 08:21:03,816 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:21:03,816 INFO  L471      AbstractCegarLoop]: Abstraction has 143 states and 234 transitions.
[2024-11-03 08:21:03,816 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43)
[2024-11-03 08:21:03,816 INFO  L276                IsEmpty]: Start isEmpty. Operand 143 states and 234 transitions.
[2024-11-03 08:21:03,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-03 08:21:03,821 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:21:03,821 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:21:03,847 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
[2024-11-03 08:21:04,022 WARN  L453      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
[2024-11-03 08:21:04,022 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:21:04,023 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:21:04,023 INFO  L85        PathProgramCache]: Analyzing trace with hash -1001498174, now seen corresponding path program 1 times
[2024-11-03 08:21:04,023 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:21:04,023 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7783837]
[2024-11-03 08:21:04,023 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:21:04,024 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
[2024-11-03 08:21:04,024 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:21:04,027 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)
[2024-11-03 08:21:04,028 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
[2024-11-03 08:21:04,647 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:21:04,679 INFO  L255         TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 08:21:04,686 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:21:07,845 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 658 proven. 114 refuted. 0 times theorem prover too weak. 2840 trivial. 0 not checked.
[2024-11-03 08:21:07,845 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:21:10,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 12 proven. 114 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2024-11-03 08:21:10,160 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:21:10,160 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7783837]
[2024-11-03 08:21:10,160 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [7783837] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 08:21:10,161 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 08:21:10,161 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 08:21:10,161 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841797897]
[2024-11-03 08:21:10,161 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 08:21:10,162 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 08:21:10,162 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:21:10,163 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 08:21:10,164 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 08:21:10,165 INFO  L87              Difference]: Start difference. First operand 143 states and 234 transitions. Second operand  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (81), 2 states have call predecessors, (81), 4 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82)
[2024-11-03 08:21:16,610 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:21:20,624 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:21:24,635 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:21:24,897 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:21:24,897 INFO  L93              Difference]: Finished difference Result 293 states and 474 transitions.
[2024-11-03 08:21:24,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 08:21:24,898 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (81), 2 states have call predecessors, (81), 4 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 283
[2024-11-03 08:21:24,899 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:21:24,900 INFO  L225             Difference]: With dead ends: 293
[2024-11-03 08:21:24,901 INFO  L226             Difference]: Without dead ends: 153
[2024-11-03 08:21:24,903 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 558 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-03 08:21:24,904 INFO  L432           NwaCegarLoop]: 178 mSDtfsCounter, 211 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time
[2024-11-03 08:21:24,905 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 425 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 264 Invalid, 3 Unknown, 0 Unchecked, 14.5s Time]
[2024-11-03 08:21:24,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 153 states.
[2024-11-03 08:21:24,928 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150.
[2024-11-03 08:21:24,929 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 150 states, 100 states have (on average 1.43) internal successors, (143), 101 states have internal predecessors, (143), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 08:21:24,934 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 237 transitions.
[2024-11-03 08:21:24,935 INFO  L78                 Accepts]: Start accepts. Automaton has 150 states and 237 transitions. Word has length 283
[2024-11-03 08:21:24,936 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:21:24,936 INFO  L471      AbstractCegarLoop]: Abstraction has 150 states and 237 transitions.
[2024-11-03 08:21:24,936 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (81), 2 states have call predecessors, (81), 4 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82)
[2024-11-03 08:21:24,936 INFO  L276                IsEmpty]: Start isEmpty. Operand 150 states and 237 transitions.
[2024-11-03 08:21:24,943 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 285
[2024-11-03 08:21:24,944 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:21:24,944 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:21:24,976 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
[2024-11-03 08:21:25,144 WARN  L453      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
[2024-11-03 08:21:25,146 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:21:25,146 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:21:25,147 INFO  L85        PathProgramCache]: Analyzing trace with hash -817302340, now seen corresponding path program 1 times
[2024-11-03 08:21:25,147 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:21:25,147 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463517431]
[2024-11-03 08:21:25,147 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:21:25,147 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
[2024-11-03 08:21:25,148 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:21:25,151 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)
[2024-11-03 08:21:25,154 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
[2024-11-03 08:21:25,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:21:25,856 INFO  L255         TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 08:21:25,864 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:21:25,955 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked.
[2024-11-03 08:21:25,955 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:21:27,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked.
[2024-11-03 08:21:27,471 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:21:27,471 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463517431]
[2024-11-03 08:21:27,471 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1463517431] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 08:21:27,471 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 08:21:27,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-03 08:21:27,471 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99326037]
[2024-11-03 08:21:27,471 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 08:21:27,472 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 08:21:27,472 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:21:27,473 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 08:21:27,473 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 08:21:27,473 INFO  L87              Difference]: Start difference. First operand 150 states and 237 transitions. Second operand  has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-03 08:21:31,753 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:21:35,757 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:21:35,760 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:21:35,761 INFO  L93              Difference]: Finished difference Result 290 states and 460 transitions.
[2024-11-03 08:21:35,829 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 08:21:35,830 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 284
[2024-11-03 08:21:35,831 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:21:35,834 INFO  L225             Difference]: With dead ends: 290
[2024-11-03 08:21:35,834 INFO  L226             Difference]: Without dead ends: 150
[2024-11-03 08:21:35,835 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 08:21:35,835 INFO  L432           NwaCegarLoop]: 221 mSDtfsCounter, 0 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time
[2024-11-03 08:21:35,837 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 653 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time]
[2024-11-03 08:21:35,838 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 150 states.
[2024-11-03 08:21:35,855 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150.
[2024-11-03 08:21:35,857 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 150 states, 100 states have (on average 1.42) internal successors, (142), 101 states have internal predecessors, (142), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 08:21:35,859 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 236 transitions.
[2024-11-03 08:21:35,859 INFO  L78                 Accepts]: Start accepts. Automaton has 150 states and 236 transitions. Word has length 284
[2024-11-03 08:21:35,860 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:21:35,860 INFO  L471      AbstractCegarLoop]: Abstraction has 150 states and 236 transitions.
[2024-11-03 08:21:35,861 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-03 08:21:35,861 INFO  L276                IsEmpty]: Start isEmpty. Operand 150 states and 236 transitions.
[2024-11-03 08:21:35,863 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 285
[2024-11-03 08:21:35,863 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:21:35,863 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:21:35,895 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 (4)] Ended with exit code 0
[2024-11-03 08:21:36,064 WARN  L453      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
[2024-11-03 08:21:36,064 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:21:36,065 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:21:36,065 INFO  L85        PathProgramCache]: Analyzing trace with hash -1846661638, now seen corresponding path program 1 times
[2024-11-03 08:21:36,065 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:21:36,065 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277030508]
[2024-11-03 08:21:36,065 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:21:36,065 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
[2024-11-03 08:21:36,066 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:21:36,067 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)
[2024-11-03 08:21:36,067 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
[2024-11-03 08:21:36,732 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:21:36,775 INFO  L255         TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 08:21:36,780 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:21:40,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 918 proven. 108 refuted. 0 times theorem prover too weak. 2586 trivial. 0 not checked.
[2024-11-03 08:21:40,416 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:21:43,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 18 proven. 108 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2024-11-03 08:21:43,337 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:21:43,337 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277030508]
[2024-11-03 08:21:43,337 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1277030508] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 08:21:43,338 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 08:21:43,338 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 08:21:43,338 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441985493]
[2024-11-03 08:21:43,338 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 08:21:43,338 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 08:21:43,339 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:21:43,339 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 08:21:43,339 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 08:21:43,340 INFO  L87              Difference]: Start difference. First operand 150 states and 236 transitions. Second operand  has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80)
[2024-11-03 08:21:50,832 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:21:54,836 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:21:58,845 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:21:59,221 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:21:59,222 INFO  L93              Difference]: Finished difference Result 304 states and 472 transitions.
[2024-11-03 08:21:59,222 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 08:21:59,222 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 284
[2024-11-03 08:21:59,224 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:21:59,225 INFO  L225             Difference]: With dead ends: 304
[2024-11-03 08:21:59,225 INFO  L226             Difference]: Without dead ends: 164
[2024-11-03 08:21:59,226 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-03 08:21:59,227 INFO  L432           NwaCegarLoop]: 178 mSDtfsCounter, 99 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time
[2024-11-03 08:21:59,227 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 450 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 303 Invalid, 3 Unknown, 0 Unchecked, 15.6s Time]
[2024-11-03 08:21:59,229 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 164 states.
[2024-11-03 08:21:59,251 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161.
[2024-11-03 08:21:59,251 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 161 states, 107 states have (on average 1.3644859813084111) internal successors, (146), 108 states have internal predecessors, (146), 49 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49)
[2024-11-03 08:21:59,255 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 244 transitions.
[2024-11-03 08:21:59,256 INFO  L78                 Accepts]: Start accepts. Automaton has 161 states and 244 transitions. Word has length 284
[2024-11-03 08:21:59,257 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:21:59,257 INFO  L471      AbstractCegarLoop]: Abstraction has 161 states and 244 transitions.
[2024-11-03 08:21:59,257 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80)
[2024-11-03 08:21:59,257 INFO  L276                IsEmpty]: Start isEmpty. Operand 161 states and 244 transitions.
[2024-11-03 08:21:59,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 285
[2024-11-03 08:21:59,259 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:21:59,259 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:21:59,285 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
[2024-11-03 08:21:59,459 WARN  L453      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
[2024-11-03 08:21:59,460 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:21:59,460 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:21:59,461 INFO  L85        PathProgramCache]: Analyzing trace with hash 76566396, now seen corresponding path program 1 times
[2024-11-03 08:21:59,461 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:21:59,461 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024934557]
[2024-11-03 08:21:59,461 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:21:59,461 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
[2024-11-03 08:21:59,461 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:21:59,462 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)
[2024-11-03 08:21:59,464 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
[2024-11-03 08:22:00,136 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:22:00,176 INFO  L255         TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-03 08:22:00,181 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:22:09,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 86 proven. 246 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked.
[2024-11-03 08:22:09,104 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:22:12,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2024-11-03 08:22:12,995 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:22:12,995 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024934557]
[2024-11-03 08:22:12,995 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1024934557] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 08:22:12,995 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 08:22:12,996 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11
[2024-11-03 08:22:12,996 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803312353]
[2024-11-03 08:22:12,996 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 08:22:12,998 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-03 08:22:12,998 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:22:13,000 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-03 08:22:13,000 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2024-11-03 08:22:13,000 INFO  L87              Difference]: Start difference. First operand 161 states and 244 transitions. Second operand  has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 10 states have internal predecessors, (128), 4 states have call successors, (85), 3 states have call predecessors, (85), 5 states have return successors, (86), 3 states have call predecessors, (86), 4 states have call successors, (86)
[2024-11-03 08:22:21,290 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:22:25,294 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:22:29,298 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:22:33,304 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:22:36,724 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:22:36,727 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:22:36,728 INFO  L93              Difference]: Finished difference Result 323 states and 480 transitions.
[2024-11-03 08:22:36,807 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-03 08:22:36,808 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 10 states have internal predecessors, (128), 4 states have call successors, (85), 3 states have call predecessors, (85), 5 states have return successors, (86), 3 states have call predecessors, (86), 4 states have call successors, (86) Word has length 284
[2024-11-03 08:22:36,809 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:22:36,810 INFO  L225             Difference]: With dead ends: 323
[2024-11-03 08:22:36,810 INFO  L226             Difference]: Without dead ends: 179
[2024-11-03 08:22:36,811 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 556 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182
[2024-11-03 08:22:36,812 INFO  L432           NwaCegarLoop]: 170 mSDtfsCounter, 85 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time
[2024-11-03 08:22:36,812 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 661 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 438 Invalid, 4 Unknown, 0 Unchecked, 23.4s Time]
[2024-11-03 08:22:36,812 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 179 states.
[2024-11-03 08:22:36,824 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177.
[2024-11-03 08:22:36,825 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 177 states, 119 states have (on average 1.319327731092437) internal successors, (157), 120 states have internal predecessors, (157), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49)
[2024-11-03 08:22:36,826 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions.
[2024-11-03 08:22:36,826 INFO  L78                 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 284
[2024-11-03 08:22:36,826 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:22:36,827 INFO  L471      AbstractCegarLoop]: Abstraction has 177 states and 255 transitions.
[2024-11-03 08:22:36,827 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 10 states have internal predecessors, (128), 4 states have call successors, (85), 3 states have call predecessors, (85), 5 states have return successors, (86), 3 states have call predecessors, (86), 4 states have call successors, (86)
[2024-11-03 08:22:36,827 INFO  L276                IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions.
[2024-11-03 08:22:36,828 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 286
[2024-11-03 08:22:36,828 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:22:36,828 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:22:36,852 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 (6)] Forceful destruction successful, exit code 0
[2024-11-03 08:22:37,029 WARN  L453      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
[2024-11-03 08:22:37,029 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:22:37,030 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:22:37,030 INFO  L85        PathProgramCache]: Analyzing trace with hash -879351754, now seen corresponding path program 1 times
[2024-11-03 08:22:37,030 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:22:37,030 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675007775]
[2024-11-03 08:22:37,030 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:22:37,030 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
[2024-11-03 08:22:37,031 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:22:37,032 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)
[2024-11-03 08:22:37,032 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
[2024-11-03 08:22:37,692 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:22:37,730 INFO  L255         TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 08:22:37,734 INFO  L278         TraceCheckSpWp]: Computing forward predicates...