/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-73.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:07:03,764 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:07:03,840 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 13:07:03,847 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:07:03,847 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:07:03,873 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:07:03,873 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:07:03,874 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:07:03,876 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:07:03,879 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:07:03,879 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:07:03,879 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:07:03,880 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:07:03,880 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:07:03,880 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:07:03,881 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:07:03,881 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:07:03,881 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:07:03,881 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:07:03,882 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:07:03,882 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:07:03,884 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:07:03,885 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:07:03,885 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:07:03,885 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:07:03,885 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:07:03,885 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:07:03,886 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:07:03,886 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:07:03,886 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:07:03,886 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:07:03,887 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:07:03,887 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:07:03,887 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:07:03,887 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:07:03,888 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:07:03,888 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:07:03,888 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:07:03,889 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:07:03,889 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:07:03,889 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:07:03,890 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:07:03,890 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:07:03,890 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:07:03,890 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:07:04,103 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:07:04,125 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:07:04,129 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:07:04,130 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:07:04,130 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:07:04,131 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-73.i
[2024-11-03 13:07:05,554 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:07:05,730 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:07:05,730 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-73.i
[2024-11-03 13:07:05,736 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7fa6f9d8/33c6a4782ee949bb9adccc5a9b07987f/FLAG5ce56ea70
[2024-11-03 13:07:06,126 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7fa6f9d8/33c6a4782ee949bb9adccc5a9b07987f
[2024-11-03 13:07:06,128 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:07:06,129 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:07:06,130 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:07:06,130 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:07:06,135 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:07:06,136 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,137 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d77d872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06, skipping insertion in model container
[2024-11-03 13:07:06,137 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,161 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:07:06,305 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-73.i[915,928]
[2024-11-03 13:07:06,339 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:07:06,350 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:07:06,359 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-73.i[915,928]
[2024-11-03 13:07:06,373 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:07:06,389 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:07:06,390 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06 WrapperNode
[2024-11-03 13:07:06,390 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:07:06,391 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:07:06,391 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:07:06,391 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:07:06,397 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,408 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,430 INFO  L138                Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86
[2024-11-03 13:07:06,431 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:07:06,431 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:07:06,431 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:07:06,432 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:07:06,445 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,445 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,449 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,459 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 13:07:06,459 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,459 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,466 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,469 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,470 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,472 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,474 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:07:06,475 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:07:06,475 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:07:06,475 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:07:06,476 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (1/1) ...
[2024-11-03 13:07:06,484 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:07:06,495 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:07:06,506 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 13:07:06,508 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 13:07:06,526 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:07:06,526 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:07:06,526 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 13:07:06,526 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 13:07:06,527 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:07:06,546 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:07:06,613 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:07:06,615 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:07:07,516 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-03 13:07:07,516 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:07:07,532 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:07:07,533 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 13:07:07,533 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:07:07 BoogieIcfgContainer
[2024-11-03 13:07:07,533 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:07:07,540 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:07:07,540 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:07:07,543 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:07:07,543 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:07:06" (1/3) ...
[2024-11-03 13:07:07,545 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c971caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:07:07, skipping insertion in model container
[2024-11-03 13:07:07,545 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:07:06" (2/3) ...
[2024-11-03 13:07:07,545 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c971caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:07:07, skipping insertion in model container
[2024-11-03 13:07:07,545 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:07:07" (3/3) ...
[2024-11-03 13:07:07,546 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-73.i
[2024-11-03 13:07:07,563 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:07:07,563 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:07:07,612 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:07:07,619 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;@2383fba1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:07:07,619 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:07:07,624 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 39 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-03 13:07:07,633 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-03 13:07:07,633 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:07:07,633 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:07,634 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:07:07,640 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:07:07,640 INFO  L85        PathProgramCache]: Analyzing trace with hash 715450892, now seen corresponding path program 1 times
[2024-11-03 13:07:07,648 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:07:07,649 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103339032]
[2024-11-03 13:07:07,649 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:07:07,651 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:07:07,651 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:07:07,653 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 13:07:07,656 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:07:07,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:07:07,780 INFO  L255         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 13:07:07,789 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:07:07,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked.
[2024-11-03 13:07:07,828 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:07:07,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked.
[2024-11-03 13:07:07,926 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:07:07,926 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103339032]
[2024-11-03 13:07:07,927 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1103339032] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:07:07,927 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:07:07,931 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 13:07:07,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434678725]
[2024-11-03 13:07:07,934 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:07:07,945 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 13:07:07,946 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:07:07,969 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 13:07:07,970 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:07:07,972 INFO  L87              Difference]: Start difference. First operand  has 39 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-03 13:07:07,996 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:07:07,997 INFO  L93              Difference]: Finished difference Result 71 states and 113 transitions.
[2024-11-03 13:07:07,999 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 13:07:08,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 63
[2024-11-03 13:07:08,000 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:07:08,007 INFO  L225             Difference]: With dead ends: 71
[2024-11-03 13:07:08,007 INFO  L226             Difference]: Without dead ends: 35
[2024-11-03 13:07:08,011 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 124 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 13:07:08,014 INFO  L432           NwaCegarLoop]: 48 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, 48 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 13:07:08,014 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 13:07:08,027 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2024-11-03 13:07:08,040 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2024-11-03 13:07:08,041 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-03 13:07:08,043 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions.
[2024-11-03 13:07:08,044 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 63
[2024-11-03 13:07:08,045 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:07:08,045 INFO  L471      AbstractCegarLoop]: Abstraction has 35 states and 48 transitions.
[2024-11-03 13:07:08,045 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-03 13:07:08,045 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions.
[2024-11-03 13:07:08,048 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-03 13:07:08,048 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:07:08,049 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:08,054 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 13:07:08,252 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:07:08,253 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:07:08,254 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:07:08,254 INFO  L85        PathProgramCache]: Analyzing trace with hash 476516110, now seen corresponding path program 1 times
[2024-11-03 13:07:08,254 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:07:08,254 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598009200]
[2024-11-03 13:07:08,255 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:07:08,255 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:07:08,255 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:07:08,256 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 13:07:08,257 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:07:08,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:07:08,323 INFO  L255         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 13:07:08,327 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:07:08,939 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-03 13:07:08,940 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:07:09,264 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-03 13:07:09,265 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:07:09,265 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598009200]
[2024-11-03 13:07:09,265 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [598009200] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:07:09,266 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:07:09,266 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 13:07:09,266 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499632156]
[2024-11-03 13:07:09,266 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:07:09,268 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 13:07:09,269 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:07:09,270 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 13:07:09,270 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-03 13:07:09,271 INFO  L87              Difference]: Start difference. First operand 35 states and 48 transitions. Second operand  has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-03 13:07:10,653 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:07:10,653 INFO  L93              Difference]: Finished difference Result 102 states and 142 transitions.
[2024-11-03 13:07:10,664 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-03 13:07:10,665 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 63
[2024-11-03 13:07:10,665 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:07:10,667 INFO  L225             Difference]: With dead ends: 102
[2024-11-03 13:07:10,667 INFO  L226             Difference]: Without dead ends: 70
[2024-11-03 13:07:10,668 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156
[2024-11-03 13:07:10,669 INFO  L432           NwaCegarLoop]: 46 mSDtfsCounter, 88 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-03 13:07:10,670 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 114 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-03 13:07:10,671 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2024-11-03 13:07:10,684 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 35.
[2024-11-03 13:07:10,684 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-03 13:07:10,685 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions.
[2024-11-03 13:07:10,686 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 47 transitions. Word has length 63
[2024-11-03 13:07:10,687 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:07:10,687 INFO  L471      AbstractCegarLoop]: Abstraction has 35 states and 47 transitions.
[2024-11-03 13:07:10,687 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-03 13:07:10,688 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions.
[2024-11-03 13:07:10,689 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-03 13:07:10,689 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:07:10,689 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:10,692 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 13:07:10,891 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:07:10,892 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:07:10,892 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:07:10,892 INFO  L85        PathProgramCache]: Analyzing trace with hash -627591792, now seen corresponding path program 1 times
[2024-11-03 13:07:10,893 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:07:10,893 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889225825]
[2024-11-03 13:07:10,893 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:07:10,893 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:07:10,893 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:07:10,895 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 13:07:10,897 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 13:07:10,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:07:10,953 INFO  L255         TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 13:07:10,955 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:07:10,974 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-03 13:07:10,975 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:07:11,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-03 13:07:11,070 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:07:11,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889225825]
[2024-11-03 13:07:11,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1889225825] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:07:11,070 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:07:11,071 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 13:07:11,071 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710565306]
[2024-11-03 13:07:11,071 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:07:11,072 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 13:07:11,072 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:07:11,072 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 13:07:11,073 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 13:07:11,073 INFO  L87              Difference]: Start difference. First operand 35 states and 47 transitions. Second operand  has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-03 13:07:11,704 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:07:11,704 INFO  L93              Difference]: Finished difference Result 78 states and 104 transitions.
[2024-11-03 13:07:11,704 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 13:07:11,705 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64
[2024-11-03 13:07:11,705 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:07:11,706 INFO  L225             Difference]: With dead ends: 78
[2024-11-03 13:07:11,706 INFO  L226             Difference]: Without dead ends: 46
[2024-11-03 13:07:11,706 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 13:07:11,707 INFO  L432           NwaCegarLoop]: 56 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-03 13:07:11,708 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 92 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-03 13:07:11,709 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2024-11-03 13:07:11,721 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36.
[2024-11-03 13:07:11,722 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-03 13:07:11,724 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions.
[2024-11-03 13:07:11,724 INFO  L78                 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 64
[2024-11-03 13:07:11,725 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:07:11,725 INFO  L471      AbstractCegarLoop]: Abstraction has 36 states and 48 transitions.
[2024-11-03 13:07:11,725 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-03 13:07:11,725 INFO  L276                IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions.
[2024-11-03 13:07:11,726 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-03 13:07:11,726 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:07:11,727 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:11,730 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 13:07:11,927 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:07:11,928 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:07:11,928 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:07:11,929 INFO  L85        PathProgramCache]: Analyzing trace with hash -1436938418, now seen corresponding path program 1 times
[2024-11-03 13:07:11,929 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:07:11,929 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098073206]
[2024-11-03 13:07:11,929 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:07:11,929 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:07:11,930 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:07:11,932 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 13:07:11,933 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 13:07:11,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:07:12,000 INFO  L255         TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-03 13:07:12,010 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:07:52,485 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-03 13:07:52,485 INFO  L311         TraceCheckSpWp]: Computing backward predicates...