/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/hardness-nfm22/hardness_operatoramount_amount25_file-8.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:08:06,237 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:08:06,307 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 13:08:06,311 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:08:06,311 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:08:06,330 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:08:06,331 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:08:06,331 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:08:06,332 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:08:06,332 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:08:06,332 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:08:06,332 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:08:06,333 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:08:06,333 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:08:06,335 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:08:06,336 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:08:06,336 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:08:06,337 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:08:06,337 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:08:06,337 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:08:06,337 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:08:06,341 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:08:06,341 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:08:06,342 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:08:06,342 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:08:06,342 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:08:06,342 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:08:06,342 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:08:06,342 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:08:06,343 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:08:06,343 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:08:06,343 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:08:06,343 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:08:06,343 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:08:06,344 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:08:06,344 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:08:06,344 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:08:06,344 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:08:06,344 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:08:06,344 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:08:06,345 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:08:06,346 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:08:06,347 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:08:06,347 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:08:06,347 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:08:06,514 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:08:06,527 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:08:06,529 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:08:06,529 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:08:06,530 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:08:06,530 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-8.i
[2024-11-03 13:08:07,722 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:08:07,892 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:08:07,892 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-8.i
[2024-11-03 13:08:07,898 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0df41c9c/9a2d052e59f645e5997ad8a3f98800fe/FLAG7f60f8d4c
[2024-11-03 13:08:08,308 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0df41c9c/9a2d052e59f645e5997ad8a3f98800fe
[2024-11-03 13:08:08,311 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:08:08,315 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:08:08,316 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:08:08,316 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:08:08,320 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:08:08,321 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,322 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71889ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08, skipping insertion in model container
[2024-11-03 13:08:08,322 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,340 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:08:08,473 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_amount25_file-8.i[914,927]
[2024-11-03 13:08:08,509 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:08:08,520 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:08:08,531 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_amount25_file-8.i[914,927]
[2024-11-03 13:08:08,547 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:08:08,566 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:08:08,567 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08 WrapperNode
[2024-11-03 13:08:08,567 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:08:08,568 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:08:08,568 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:08:08,568 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:08:08,573 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,582 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,598 INFO  L138                Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116
[2024-11-03 13:08:08,599 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:08:08,599 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:08:08,599 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:08:08,599 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:08:08,607 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,608 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,610 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,619 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 13:08:08,620 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,620 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,626 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,629 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,631 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,632 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,634 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:08:08,635 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:08:08,635 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:08:08,635 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:08:08,636 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (1/1) ...
[2024-11-03 13:08:08,640 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:08:08,649 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:08:08,661 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 13:08:08,669 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 13:08:08,690 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:08:08,691 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:08:08,691 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 13:08:08,691 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 13:08:08,691 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:08:08,691 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:08:08,753 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:08:08,755 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:08:10,137 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-03 13:08:10,137 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:08:10,188 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:08:10,188 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 13:08:10,188 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:08:10 BoogieIcfgContainer
[2024-11-03 13:08:10,188 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:08:10,193 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:08:10,193 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:08:10,195 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:08:10,195 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:08:08" (1/3) ...
[2024-11-03 13:08:10,196 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196c6fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:08:10, skipping insertion in model container
[2024-11-03 13:08:10,196 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:08:08" (2/3) ...
[2024-11-03 13:08:10,197 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196c6fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:08:10, skipping insertion in model container
[2024-11-03 13:08:10,197 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:08:10" (3/3) ...
[2024-11-03 13:08:10,198 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-8.i
[2024-11-03 13:08:10,208 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:08:10,209 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:08:10,253 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:08:10,259 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;@6000dd68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:08:10,259 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:08:10,262 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 55 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 13:08:10,271 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-03 13:08:10,271 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:08:10,271 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:10,272 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:08:10,275 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:08:10,275 INFO  L85        PathProgramCache]: Analyzing trace with hash 1472964719, now seen corresponding path program 1 times
[2024-11-03 13:08:10,281 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:08:10,281 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617643578]
[2024-11-03 13:08:10,281 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:08:10,283 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:08:10,283 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:08:10,285 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 13:08:10,289 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:08:10,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:08:10,376 INFO  L255         TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 13:08:10,384 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:08:10,426 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-03 13:08:10,426 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:08:10,532 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-03 13:08:10,533 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:08:10,533 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617643578]
[2024-11-03 13:08:10,533 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [617643578] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:08:10,533 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:08:10,534 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 13:08:10,538 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663800223]
[2024-11-03 13:08:10,538 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:08:10,541 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 13:08:10,542 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:08:10,558 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 13:08:10,559 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:08:10,560 INFO  L87              Difference]: Start difference. First operand  has 55 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 13:08:10,582 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:08:10,582 INFO  L93              Difference]: Finished difference Result 103 states and 176 transitions.
[2024-11-03 13:08:10,584 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 13:08:10,585 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125
[2024-11-03 13:08:10,585 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:08:10,590 INFO  L225             Difference]: With dead ends: 103
[2024-11-03 13:08:10,590 INFO  L226             Difference]: Without dead ends: 51
[2024-11-03 13:08:10,594 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 248 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 13:08:10,598 INFO  L432           NwaCegarLoop]: 74 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, 74 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 13:08:10,598 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 13:08:10,609 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2024-11-03 13:08:10,626 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51.
[2024-11-03 13:08:10,627 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 13:08:10,632 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions.
[2024-11-03 13:08:10,635 INFO  L78                 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 125
[2024-11-03 13:08:10,635 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:08:10,635 INFO  L471      AbstractCegarLoop]: Abstraction has 51 states and 74 transitions.
[2024-11-03 13:08:10,635 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 13:08:10,636 INFO  L276                IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions.
[2024-11-03 13:08:10,640 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-03 13:08:10,640 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:08:10,640 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:10,646 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 13:08:10,847 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:08:10,847 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:08:10,848 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:08:10,848 INFO  L85        PathProgramCache]: Analyzing trace with hash -286332501, now seen corresponding path program 1 times
[2024-11-03 13:08:10,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:08:10,848 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238329123]
[2024-11-03 13:08:10,848 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:08:10,848 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:08:10,849 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:08:10,851 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 13:08:10,852 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:08:10,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:08:10,927 INFO  L255         TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 13:08:10,931 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:08:11,145 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 13:08:11,146 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:08:11,280 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 13:08:11,281 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:08:11,281 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238329123]
[2024-11-03 13:08:11,281 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [238329123] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:08:11,281 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:08:11,282 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-03 13:08:11,282 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494916540]
[2024-11-03 13:08:11,282 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:08:11,283 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 13:08:11,283 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:08:11,284 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 13:08:11,284 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 13:08:11,301 INFO  L87              Difference]: Start difference. First operand 51 states and 74 transitions. Second operand  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 13:08:11,662 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:08:11,662 INFO  L93              Difference]: Finished difference Result 99 states and 145 transitions.
[2024-11-03 13:08:11,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 13:08:11,670 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 125
[2024-11-03 13:08:11,671 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:08:11,672 INFO  L225             Difference]: With dead ends: 99
[2024-11-03 13:08:11,672 INFO  L226             Difference]: Without dead ends: 51
[2024-11-03 13:08:11,673 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 13:08:11,674 INFO  L432           NwaCegarLoop]: 69 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-03 13:08:11,674 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 69 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-03 13:08:11,675 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2024-11-03 13:08:11,685 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51.
[2024-11-03 13:08:11,685 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 13:08:11,686 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions.
[2024-11-03 13:08:11,686 INFO  L78                 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 125
[2024-11-03 13:08:11,690 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:08:11,691 INFO  L471      AbstractCegarLoop]: Abstraction has 51 states and 73 transitions.
[2024-11-03 13:08:11,691 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 13:08:11,691 INFO  L276                IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions.
[2024-11-03 13:08:11,692 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-03 13:08:11,692 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:08:11,692 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:11,698 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 13:08:11,893 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:08:11,893 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:08:11,894 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:08:11,894 INFO  L85        PathProgramCache]: Analyzing trace with hash 393725869, now seen corresponding path program 1 times
[2024-11-03 13:08:11,894 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:08:11,894 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979358629]
[2024-11-03 13:08:11,894 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:08:11,894 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:08:11,894 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:08:11,896 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 13:08:11,898 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 13:08:11,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:08:11,977 INFO  L255         TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 13:08:11,980 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:08:12,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 217 proven. 48 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked.
[2024-11-03 13:08:12,165 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:08:12,395 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked.
[2024-11-03 13:08:12,396 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:08:12,396 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979358629]
[2024-11-03 13:08:12,396 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [979358629] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 13:08:12,396 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 13:08:12,396 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 13:08:12,396 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197980762]
[2024-11-03 13:08:12,397 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 13:08:12,397 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 13:08:12,397 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:08:12,398 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 13:08:12,398 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 13:08:12,401 INFO  L87              Difference]: Start difference. First operand 51 states and 73 transitions. Second operand  has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37)
[2024-11-03 13:08:12,909 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:08:12,909 INFO  L93              Difference]: Finished difference Result 107 states and 150 transitions.
[2024-11-03 13:08:12,921 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 13:08:12,922 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 125
[2024-11-03 13:08:12,922 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:08:12,923 INFO  L225             Difference]: With dead ends: 107
[2024-11-03 13:08:12,923 INFO  L226             Difference]: Without dead ends: 59
[2024-11-03 13:08:12,924 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2024-11-03 13:08:12,925 INFO  L432           NwaCegarLoop]: 47 mSDtfsCounter, 31 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-03 13:08:12,925 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 99 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-03 13:08:12,926 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2024-11-03 13:08:12,934 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55.
[2024-11-03 13:08:12,934 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 13:08:12,935 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions.
[2024-11-03 13:08:12,935 INFO  L78                 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 125
[2024-11-03 13:08:12,936 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:08:12,936 INFO  L471      AbstractCegarLoop]: Abstraction has 55 states and 75 transitions.
[2024-11-03 13:08:12,936 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37)
[2024-11-03 13:08:12,936 INFO  L276                IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions.
[2024-11-03 13:08:12,937 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-03 13:08:12,937 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:08:12,937 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:12,942 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 13:08:13,139 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:08:13,140 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:08:13,140 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:08:13,140 INFO  L85        PathProgramCache]: Analyzing trace with hash 395572911, now seen corresponding path program 1 times
[2024-11-03 13:08:13,141 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:08:13,141 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666876798]
[2024-11-03 13:08:13,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:08:13,141 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:08:13,141 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:08:13,143 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 13:08:13,144 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 13:08:13,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:08:13,216 INFO  L255         TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-03 13:08:13,221 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:08:28,857 WARN  L286               SmtUtils]: Spent 5.65s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-03 13:08:56,995 WARN  L286               SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-03 13:09:21,343 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 327 proven. 153 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked.
[2024-11-03 13:09:21,343 INFO  L311         TraceCheckSpWp]: Computing backward predicates...