/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-benchs/drift_tenth.c


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:44:40,815 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:44:40,890 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 13:44:40,896 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:44:40,896 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:44:40,929 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:44:40,930 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:44:40,930 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:44:40,930 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:44:40,931 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:44:40,931 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:44:40,931 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:44:40,932 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:44:40,932 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:44:40,933 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:44:40,933 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:44:40,933 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:44:40,934 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:44:40,934 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:44:40,934 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:44:40,934 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:44:40,938 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:44:40,938 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:44:40,939 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:44:40,939 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:44:40,939 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:44:40,939 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:44:40,940 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:44:40,940 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:44:40,940 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:44:40,940 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:44:40,941 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:44:40,941 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:44:40,944 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:44:40,944 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:44:40,945 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:44:40,945 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:44:40,945 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:44:40,945 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:44:40,945 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:44:40,946 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:44:40,946 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:44:40,947 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:44:40,947 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:44:40,947 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:44:41,175 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:44:41,198 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:44:41,200 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:44:41,201 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:44:41,201 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:44:41,202 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/drift_tenth.c
[2024-11-03 13:44:42,541 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:44:42,750 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:44:42,750 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/drift_tenth.c
[2024-11-03 13:44:42,755 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/711efdc72/81faf04cb88f484c800f5410068686a7/FLAGea1cf4f7d
[2024-11-03 13:44:43,173 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/711efdc72/81faf04cb88f484c800f5410068686a7
[2024-11-03 13:44:43,174 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:44:43,175 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:44:43,177 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:44:43,177 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:44:43,181 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:44:43,182 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,183 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9e5c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43, skipping insertion in model container
[2024-11-03 13:44:43,183 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,198 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:44:43,347 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/drift_tenth.c[348,361]
[2024-11-03 13:44:43,359 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:44:43,370 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:44:43,379 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/drift_tenth.c[348,361]
[2024-11-03 13:44:43,382 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:44:43,396 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:44:43,396 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43 WrapperNode
[2024-11-03 13:44:43,396 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:44:43,397 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:44:43,398 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:44:43,398 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:44:43,405 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,416 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,429 INFO  L138                Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31
[2024-11-03 13:44:43,430 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:44:43,430 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:44:43,431 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:44:43,431 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:44:43,440 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,440 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,449 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,463 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 13:44:43,464 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,464 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,469 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,471 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,473 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,474 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,476 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:44:43,477 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:44:43,477 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:44:43,477 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:44:43,478 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (1/1) ...
[2024-11-03 13:44:43,483 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:44:43,494 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:44:43,509 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 13:44:43,511 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 13:44:43,535 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:44:43,536 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:44:43,550 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:44:43,550 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:44:43,604 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:44:43,606 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:44:43,755 INFO  L?                        ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-03 13:44:43,755 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:44:43,764 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:44:43,764 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 13:44:43,765 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:44:43 BoogieIcfgContainer
[2024-11-03 13:44:43,765 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:44:43,767 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:44:43,767 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:44:43,770 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:44:43,770 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:44:43" (1/3) ...
[2024-11-03 13:44:43,771 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad82777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:44:43, skipping insertion in model container
[2024-11-03 13:44:43,771 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:43" (2/3) ...
[2024-11-03 13:44:43,771 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad82777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:44:43, skipping insertion in model container
[2024-11-03 13:44:43,771 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:44:43" (3/3) ...
[2024-11-03 13:44:43,773 INFO  L112   eAbstractionObserver]: Analyzing ICFG drift_tenth.c
[2024-11-03 13:44:43,787 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:44:43,787 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:44:43,835 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:44:43,840 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;@33d77299, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:44:43,841 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:44:43,844 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 13:44:43,852 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-03 13:44:43,852 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:44:43,853 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-03 13:44:43,853 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:44:43,859 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:44:43,860 INFO  L85        PathProgramCache]: Analyzing trace with hash 889605037, now seen corresponding path program 1 times
[2024-11-03 13:44:43,866 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:44:43,866 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562646127]
[2024-11-03 13:44:43,866 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:44:43,868 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:44:43,868 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:43,870 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:44:43,871 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:44:43,932 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:44:43,934 INFO  L255         TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 13:44:43,937 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:44:43,968 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 13:44:43,968 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:44:43,985 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 13:44:43,986 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:44:43,986 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562646127]
[2024-11-03 13:44:43,986 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1562646127] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:44:43,987 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:44:43,987 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-03 13:44:43,988 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070124409]
[2024-11-03 13:44:43,989 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:44:43,993 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 13:44:43,993 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:44:44,012 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 13:44:44,013 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 13:44:44,015 INFO  L87              Difference]: Start difference. First operand  has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 13:44:44,115 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:44:44,115 INFO  L93              Difference]: Finished difference Result 23 states and 29 transitions.
[2024-11-03 13:44:44,116 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 13:44:44,117 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-03 13:44:44,117 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:44:44,122 INFO  L225             Difference]: With dead ends: 23
[2024-11-03 13:44:44,123 INFO  L226             Difference]: Without dead ends: 11
[2024-11-03 13:44:44,125 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 13:44:44,128 INFO  L432           NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-03 13:44:44,130 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 24 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-03 13:44:44,144 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2024-11-03 13:44:44,152 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11.
[2024-11-03 13:44:44,152 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 13:44:44,153 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions.
[2024-11-03 13:44:44,154 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 6
[2024-11-03 13:44:44,154 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:44:44,154 INFO  L471      AbstractCegarLoop]: Abstraction has 11 states and 11 transitions.
[2024-11-03 13:44:44,155 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 13:44:44,155 INFO  L276                IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions.
[2024-11-03 13:44:44,155 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-03 13:44:44,155 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:44:44,156 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:44:44,159 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 13:44:44,356 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:44,357 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:44:44,357 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:44:44,358 INFO  L85        PathProgramCache]: Analyzing trace with hash 1489078833, now seen corresponding path program 1 times
[2024-11-03 13:44:44,358 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:44:44,358 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442990295]
[2024-11-03 13:44:44,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:44:44,358 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:44:44,359 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:44,360 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:44:44,360 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:44:44,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:44:44,390 INFO  L255         TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 13:44:44,391 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:44:44,446 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 13:44:44,446 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:44:44,501 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 13:44:44,502 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:44:44,502 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442990295]
[2024-11-03 13:44:44,502 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1442990295] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 13:44:44,502 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 13:44:44,503 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-11-03 13:44:44,503 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794100692]
[2024-11-03 13:44:44,503 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 13:44:44,506 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 13:44:44,506 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:44:44,506 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 13:44:44,507 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-03 13:44:44,507 INFO  L87              Difference]: Start difference. First operand 11 states and 11 transitions. Second operand  has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 13:44:44,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:44:44,832 INFO  L93              Difference]: Finished difference Result 23 states and 26 transitions.
[2024-11-03 13:44:44,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 13:44:44,835 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-11-03 13:44:44,836 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:44:44,836 INFO  L225             Difference]: With dead ends: 23
[2024-11-03 13:44:44,836 INFO  L226             Difference]: Without dead ends: 19
[2024-11-03 13:44:44,837 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-03 13:44:44,838 INFO  L432           NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-03 13:44:44,839 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-03 13:44:44,839 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2024-11-03 13:44:44,843 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2024-11-03 13:44:44,843 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 13:44:44,844 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions.
[2024-11-03 13:44:44,844 INFO  L78                 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10
[2024-11-03 13:44:44,844 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:44:44,844 INFO  L471      AbstractCegarLoop]: Abstraction has 19 states and 19 transitions.
[2024-11-03 13:44:44,844 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 13:44:44,844 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions.
[2024-11-03 13:44:44,845 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-03 13:44:44,845 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:44:44,845 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:44:44,847 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 13:44:45,046 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:45,047 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:44:45,047 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:44:45,048 INFO  L85        PathProgramCache]: Analyzing trace with hash -690462407, now seen corresponding path program 2 times
[2024-11-03 13:44:45,049 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:44:45,049 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406877705]
[2024-11-03 13:44:45,049 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:44:45,049 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:44:45,049 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:45,050 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:44:45,051 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 13:44:45,078 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:44:45,079 INFO  L255         TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-03 13:44:45,081 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:44:45,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 13:44:45,205 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:44:45,398 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 13:44:45,398 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:44:45,398 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406877705]
[2024-11-03 13:44:45,399 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1406877705] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 13:44:45,399 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 13:44:45,399 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16
[2024-11-03 13:44:45,399 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084665286]
[2024-11-03 13:44:45,399 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 13:44:45,400 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-03 13:44:45,400 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:44:45,401 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-03 13:44:45,401 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240
[2024-11-03 13:44:45,402 INFO  L87              Difference]: Start difference. First operand 19 states and 19 transitions. Second operand  has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 13:44:46,024 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:44:46,025 INFO  L93              Difference]: Finished difference Result 31 states and 34 transitions.
[2024-11-03 13:44:46,026 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-03 13:44:46,027 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2024-11-03 13:44:46,027 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:44:46,028 INFO  L225             Difference]: With dead ends: 31
[2024-11-03 13:44:46,028 INFO  L226             Difference]: Without dead ends: 27
[2024-11-03 13:44:46,028 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306
[2024-11-03 13:44:46,029 INFO  L432           NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-03 13:44:46,030 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 34 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-03 13:44:46,031 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2024-11-03 13:44:46,035 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2024-11-03 13:44:46,035 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 13:44:46,037 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions.
[2024-11-03 13:44:46,038 INFO  L78                 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 18
[2024-11-03 13:44:46,038 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:44:46,038 INFO  L471      AbstractCegarLoop]: Abstraction has 27 states and 27 transitions.
[2024-11-03 13:44:46,038 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-03 13:44:46,039 INFO  L276                IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions.
[2024-11-03 13:44:46,039 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-03 13:44:46,039 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:44:46,040 INFO  L215           NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:44:46,042 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 13:44:46,240 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:46,241 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:44:46,241 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:44:46,241 INFO  L85        PathProgramCache]: Analyzing trace with hash -95702975, now seen corresponding path program 3 times
[2024-11-03 13:44:46,241 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:44:46,242 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392675621]
[2024-11-03 13:44:46,242 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:44:46,242 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:44:46,242 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:46,244 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:44:46,245 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 13:44:46,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:44:46,270 INFO  L255         TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-03 13:44:46,273 INFO  L278         TraceCheckSpWp]: Computing forward predicates...