/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_amount250_file-92.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:57:12,528 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:57:12,573 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 12:57:12,576 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:57:12,577 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:57:12,592 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:57:12,593 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:57:12,593 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:57:12,594 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:57:12,594 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:57:12,594 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:57:12,594 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:57:12,595 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:57:12,595 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:57:12,595 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:57:12,596 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:57:12,596 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:57:12,596 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:57:12,596 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:57:12,597 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:57:12,597 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:57:12,597 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:57:12,598 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:57:12,598 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:57:12,598 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:57:12,598 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:57:12,598 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:57:12,599 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:57:12,599 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:57:12,599 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:57:12,599 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:57:12,599 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:57:12,600 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:57:12,600 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:57:12,600 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:57:12,600 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:57:12,600 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:57:12,601 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:57:12,601 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:57:12,601 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:57:12,601 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:57:12,602 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:57:12,602 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:57:12,602 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:57:12,602 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:57:12,807 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:57:12,831 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:57:12,833 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:57:12,834 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:57:12,834 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:57:12,835 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-92.i
[2024-11-03 12:57:14,160 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:57:14,379 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:57:14,380 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-92.i
[2024-11-03 12:57:14,395 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee183ea7/287ef9a336924aa5b8f6f02955c45439/FLAG47a769110
[2024-11-03 12:57:14,740 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee183ea7/287ef9a336924aa5b8f6f02955c45439
[2024-11-03 12:57:14,744 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:57:14,745 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:57:14,746 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:57:14,746 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:57:14,751 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:57:14,753 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:57:14" (1/1) ...
[2024-11-03 12:57:14,754 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e416e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:14, skipping insertion in model container
[2024-11-03 12:57:14,754 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:57:14" (1/1) ...
[2024-11-03 12:57:14,795 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:57:14,955 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-92.i[916,929]
[2024-11-03 12:57:15,060 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:57:15,077 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:57:15,087 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-92.i[916,929]
[2024-11-03 12:57:15,148 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:57:15,170 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:57:15,170 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15 WrapperNode
[2024-11-03 12:57:15,170 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:57:15,171 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:57:15,171 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:57:15,171 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:57:15,180 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,194 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,234 INFO  L138                Inliner]: procedures = 27, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 357
[2024-11-03 12:57:15,234 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:57:15,235 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:57:15,235 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:57:15,235 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:57:15,245 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,246 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,253 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,272 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 12:57:15,273 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,273 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,290 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,294 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,298 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,301 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,310 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:57:15,331 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:57:15,332 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:57:15,332 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:57:15,333 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (1/1) ...
[2024-11-03 12:57:15,338 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:57:15,348 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:57:15,369 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 12:57:15,374 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 12:57:15,398 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:57:15,398 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:57:15,398 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:57:15,399 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:57:15,399 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:57:15,399 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:57:15,518 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:57:15,520 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:57:25,356 INFO  L?                        ?]: Removed 40 outVars from TransFormulas that were not future-live.
[2024-11-03 12:57:25,356 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:57:25,380 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:57:25,380 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:57:25,381 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:57:25 BoogieIcfgContainer
[2024-11-03 12:57:25,381 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:57:25,387 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:57:25,387 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:57:25,389 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:57:25,390 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:57:14" (1/3) ...
[2024-11-03 12:57:25,390 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ccb6f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:57:25, skipping insertion in model container
[2024-11-03 12:57:25,390 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:57:15" (2/3) ...
[2024-11-03 12:57:25,391 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ccb6f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:57:25, skipping insertion in model container
[2024-11-03 12:57:25,391 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:57:25" (3/3) ...
[2024-11-03 12:57:25,396 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-92.i
[2024-11-03 12:57:25,423 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:57:25,427 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:57:25,492 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:57:25,499 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;@f504d05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:57:25,500 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:57:25,505 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 146 states, 97 states have (on average 1.4845360824742269) internal successors, (144), 98 states have internal predecessors, (144), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-03 12:57:25,519 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-03 12:57:25,519 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:57:25,520 INFO  L215           NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:25,521 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:57:25,530 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:57:25,531 INFO  L85        PathProgramCache]: Analyzing trace with hash 331192403, now seen corresponding path program 1 times
[2024-11-03 12:57:25,538 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:57:25,539 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113333060]
[2024-11-03 12:57:25,539 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:57:25,543 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:57:25,544 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:57:25,549 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 12:57:25,554 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:57:25,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:57:25,741 INFO  L255         TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:57:25,761 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:57:25,812 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked.
[2024-11-03 12:57:25,812 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:57:27,338 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked.
[2024-11-03 12:57:27,339 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:57:27,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113333060]
[2024-11-03 12:57:27,340 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1113333060] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:57:27,340 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:57:27,340 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:57:27,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812139939]
[2024-11-03 12:57:27,345 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:57:27,350 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:57:27,350 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:57:27,369 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:57:27,370 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:57:27,372 INFO  L87              Difference]: Start difference. First operand  has 146 states, 97 states have (on average 1.4845360824742269) internal successors, (144), 98 states have internal predecessors, (144), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand  has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 1 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 1 states have call successors, (46)
[2024-11-03 12:57:27,406 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:57:27,406 INFO  L93              Difference]: Finished difference Result 285 states and 512 transitions.
[2024-11-03 12:57:27,407 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:57:27,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 1 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 1 states have call successors, (46) Word has length 303
[2024-11-03 12:57:27,409 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:57:27,417 INFO  L225             Difference]: With dead ends: 285
[2024-11-03 12:57:27,418 INFO  L226             Difference]: Without dead ends: 142
[2024-11-03 12:57:27,422 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 604 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 12:57:27,424 INFO  L432           NwaCegarLoop]: 229 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, 229 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 12:57:27,425 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:57:27,439 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 142 states.
[2024-11-03 12:57:27,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142.
[2024-11-03 12:57:27,472 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 142 states, 94 states have (on average 1.4574468085106382) internal successors, (137), 94 states have internal predecessors, (137), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-03 12:57:27,475 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 229 transitions.
[2024-11-03 12:57:27,478 INFO  L78                 Accepts]: Start accepts. Automaton has 142 states and 229 transitions. Word has length 303
[2024-11-03 12:57:27,478 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:57:27,479 INFO  L471      AbstractCegarLoop]: Abstraction has 142 states and 229 transitions.
[2024-11-03 12:57:27,479 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 1 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 1 states have call successors, (46)
[2024-11-03 12:57:27,479 INFO  L276                IsEmpty]: Start isEmpty. Operand 142 states and 229 transitions.
[2024-11-03 12:57:27,494 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-03 12:57:27,494 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:57:27,497 INFO  L215           NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:27,504 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 12:57:27,698 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:57:27,699 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:57:27,700 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:57:27,700 INFO  L85        PathProgramCache]: Analyzing trace with hash -1984223997, now seen corresponding path program 1 times
[2024-11-03 12:57:27,700 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:57:27,700 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333201278]
[2024-11-03 12:57:27,700 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:57:27,701 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:57:27,701 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:57:27,703 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 12:57:27,703 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:57:27,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:57:27,854 INFO  L255         TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 12:57:27,862 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:57:32,277 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 709 proven. 123 refuted. 0 times theorem prover too weak. 3308 trivial. 0 not checked.
[2024-11-03 12:57:32,277 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:57:35,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 12 proven. 123 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked.
[2024-11-03 12:57:35,453 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:57:35,453 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333201278]
[2024-11-03 12:57:35,453 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [333201278] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:57:35,453 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:57:35,453 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 12:57:35,453 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885735960]
[2024-11-03 12:57:35,454 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:57:35,455 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 12:57:35,455 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:57:35,457 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 12:57:35,457 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 12:57:35,457 INFO  L87              Difference]: Start difference. First operand 142 states and 229 transitions. Second operand  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88)
[2024-11-03 12:57:42,222 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:57:46,229 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:57:50,238 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:57:50,525 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:57:50,525 INFO  L93              Difference]: Finished difference Result 296 states and 472 transitions.
[2024-11-03 12:57:50,526 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 12:57:50,526 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 303
[2024-11-03 12:57:50,527 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:57:50,529 INFO  L225             Difference]: With dead ends: 296
[2024-11-03 12:57:50,529 INFO  L226             Difference]: Without dead ends: 157
[2024-11-03 12:57:50,530 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 598 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2024-11-03 12:57:50,530 INFO  L432           NwaCegarLoop]: 180 mSDtfsCounter, 142 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time
[2024-11-03 12:57:50,531 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 441 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 279 Invalid, 3 Unknown, 0 Unchecked, 14.8s Time]
[2024-11-03 12:57:50,531 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2024-11-03 12:57:50,545 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 152.
[2024-11-03 12:57:50,545 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 152 states, 99 states have (on average 1.393939393939394) internal successors, (138), 100 states have internal predecessors, (138), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50)
[2024-11-03 12:57:50,546 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 238 transitions.
[2024-11-03 12:57:50,547 INFO  L78                 Accepts]: Start accepts. Automaton has 152 states and 238 transitions. Word has length 303
[2024-11-03 12:57:50,551 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:57:50,552 INFO  L471      AbstractCegarLoop]: Abstraction has 152 states and 238 transitions.
[2024-11-03 12:57:50,552 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88)
[2024-11-03 12:57:50,552 INFO  L276                IsEmpty]: Start isEmpty. Operand 152 states and 238 transitions.
[2024-11-03 12:57:50,555 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-03 12:57:50,555 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:57:50,555 INFO  L215           NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:50,560 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:57:50,756 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:57:50,757 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:57:50,757 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:57:50,757 INFO  L85        PathProgramCache]: Analyzing trace with hash 2131857614, now seen corresponding path program 1 times
[2024-11-03 12:57:50,757 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:57:50,757 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138592859]
[2024-11-03 12:57:50,757 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:57:50,758 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:57:50,758 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:57:50,761 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 12:57:50,763 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:57:50,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:57:50,870 INFO  L255         TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 12:57:50,875 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:58:00,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-03 12:58:00,306 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:58:02,017 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-03 12:58:02,017 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:58:02,017 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138592859]
[2024-11-03 12:58:02,017 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1138592859] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:58:02,017 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:58:02,018 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 6
[2024-11-03 12:58:02,018 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547409196]
[2024-11-03 12:58:02,018 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:58:02,018 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 12:58:02,019 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:58:02,023 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 12:58:02,024 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 12:58:02,024 INFO  L87              Difference]: Start difference. First operand 152 states and 238 transitions. Second operand  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 2 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92)
[2024-11-03 12:58:07,974 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:58:11,978 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:58:15,984 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:58:19,988 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:58:24,269 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:58:28,277 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:58:32,285 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:58:36,292 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:58:36,293 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:58:36,293 INFO  L93              Difference]: Finished difference Result 430 states and 676 transitions.
[2024-11-03 12:58:36,355 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-03 12:58:36,355 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 2 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) Word has length 304
[2024-11-03 12:58:36,356 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:58:36,359 INFO  L225             Difference]: With dead ends: 430
[2024-11-03 12:58:36,360 INFO  L226             Difference]: Without dead ends: 288
[2024-11-03 12:58:36,360 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 603 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-03 12:58:36,363 INFO  L432           NwaCegarLoop]: 221 mSDtfsCounter, 173 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 93 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time
[2024-11-03 12:58:36,364 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 759 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 123 Invalid, 8 Unknown, 0 Unchecked, 34.0s Time]
[2024-11-03 12:58:36,365 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 288 states.
[2024-11-03 12:58:36,402 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 228.
[2024-11-03 12:58:36,403 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 228 states, 131 states have (on average 1.2900763358778626) internal successors, (169), 132 states have internal predecessors, (169), 92 states have call successors, (92), 4 states have call predecessors, (92), 4 states have return successors, (92), 91 states have call predecessors, (92), 92 states have call successors, (92)
[2024-11-03 12:58:36,405 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 353 transitions.
[2024-11-03 12:58:36,405 INFO  L78                 Accepts]: Start accepts. Automaton has 228 states and 353 transitions. Word has length 304
[2024-11-03 12:58:36,406 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:58:36,406 INFO  L471      AbstractCegarLoop]: Abstraction has 228 states and 353 transitions.
[2024-11-03 12:58:36,406 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 2 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92)
[2024-11-03 12:58:36,406 INFO  L276                IsEmpty]: Start isEmpty. Operand 228 states and 353 transitions.
[2024-11-03 12:58:36,408 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-03 12:58:36,408 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:58:36,409 INFO  L215           NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:36,415 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 12:58:36,609 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:58:36,610 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:58:36,610 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:58:36,610 INFO  L85        PathProgramCache]: Analyzing trace with hash -1888350068, now seen corresponding path program 1 times
[2024-11-03 12:58:36,610 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:58:36,611 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952582859]
[2024-11-03 12:58:36,611 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:58:36,611 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:58:36,611 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:58:36,616 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 12:58:36,617 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:58:36,721 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:58:36,723 INFO  L255         TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 12:58:36,727 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:58:36,965 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-03 12:58:36,965 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:58:38,678 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-03 12:58:38,678 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:58:38,678 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952582859]
[2024-11-03 12:58:38,678 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1952582859] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:58:38,679 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:58:38,679 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 12:58:38,679 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854463756]
[2024-11-03 12:58:38,679 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:58:38,681 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 12:58:38,681 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:58:38,682 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 12:58:38,682 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 12:58:38,682 INFO  L87              Difference]: Start difference. First operand 228 states and 353 transitions. Second operand  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46)
[2024-11-03 12:58:43,004 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:58:47,006 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:58:47,183 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:58:47,183 INFO  L93              Difference]: Finished difference Result 508 states and 791 transitions.
[2024-11-03 12:58:47,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 12:58:47,187 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 304
[2024-11-03 12:58:47,188 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:58:47,193 INFO  L225             Difference]: With dead ends: 508
[2024-11-03 12:58:47,193 INFO  L226             Difference]: Without dead ends: 366
[2024-11-03 12:58:47,194 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 12:58:47,194 INFO  L432           NwaCegarLoop]: 425 mSDtfsCounter, 200 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time
[2024-11-03 12:58:47,195 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 633 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time]
[2024-11-03 12:58:47,195 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 366 states.
[2024-11-03 12:58:47,215 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 245.
[2024-11-03 12:58:47,215 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 245 states, 148 states have (on average 1.3243243243243243) internal successors, (196), 149 states have internal predecessors, (196), 92 states have call successors, (92), 4 states have call predecessors, (92), 4 states have return successors, (92), 91 states have call predecessors, (92), 92 states have call successors, (92)
[2024-11-03 12:58:47,217 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 380 transitions.
[2024-11-03 12:58:47,217 INFO  L78                 Accepts]: Start accepts. Automaton has 245 states and 380 transitions. Word has length 304
[2024-11-03 12:58:47,218 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:58:47,218 INFO  L471      AbstractCegarLoop]: Abstraction has 245 states and 380 transitions.
[2024-11-03 12:58:47,218 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46)
[2024-11-03 12:58:47,218 INFO  L276                IsEmpty]: Start isEmpty. Operand 245 states and 380 transitions.
[2024-11-03 12:58:47,220 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-03 12:58:47,220 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:58:47,220 INFO  L215           NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:47,222 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0
[2024-11-03 12:58:47,422 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:58:47,423 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:58:47,423 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:58:47,423 INFO  L85        PathProgramCache]: Analyzing trace with hash -1011619764, now seen corresponding path program 1 times
[2024-11-03 12:58:47,423 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:58:47,423 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641834229]
[2024-11-03 12:58:47,423 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:58:47,423 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:58:47,424 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:58:47,425 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:58:47,425 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process
[2024-11-03 12:58:47,525 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:58:47,527 INFO  L255         TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-03 12:58:47,531 INFO  L278         TraceCheckSpWp]: Computing forward predicates...