/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_amount100_file-30.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:30:26,841 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:30:26,908 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 12:30:26,913 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:30:26,913 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:30:26,942 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:30:26,943 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:30:26,943 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:30:26,944 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:30:26,944 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:30:26,944 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:30:26,945 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:30:26,945 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:30:26,946 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:30:26,946 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:30:26,946 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:30:26,947 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:30:26,947 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:30:26,947 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:30:26,948 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:30:26,948 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:30:26,949 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:30:26,949 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:30:26,949 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:30:26,950 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:30:26,950 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:30:26,950 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:30:26,951 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:30:26,951 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:30:26,951 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:30:26,952 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:30:26,952 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:30:26,955 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:30:26,956 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:30:26,956 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:30:26,956 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:30:26,957 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:30:26,957 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:30:26,957 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:30:26,958 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:30:26,958 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:30:26,961 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:30:26,962 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:30:26,962 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:30:26,962 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:30:27,227 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:30:27,258 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:30:27,263 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:30:27,264 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:30:27,264 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:30:27,266 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-30.i
[2024-11-03 12:30:28,835 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:30:29,064 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:30:29,065 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-30.i
[2024-11-03 12:30:29,082 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2b71538/40362ae9d0cf4644b98294d8cdbc6e7d/FLAG48ac0ede2
[2024-11-03 12:30:29,097 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2b71538/40362ae9d0cf4644b98294d8cdbc6e7d
[2024-11-03 12:30:29,100 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:30:29,101 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:30:29,102 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:30:29,102 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:30:29,108 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:30:29,109 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,110 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50819ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29, skipping insertion in model container
[2024-11-03 12:30:29,110 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,151 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:30:29,340 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_amount100_file-30.i[916,929]
[2024-11-03 12:30:29,412 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:30:29,430 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:30:29,443 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_amount100_file-30.i[916,929]
[2024-11-03 12:30:29,481 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:30:29,504 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:30:29,505 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29 WrapperNode
[2024-11-03 12:30:29,505 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:30:29,507 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:30:29,508 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:30:29,508 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:30:29,515 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,527 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,556 INFO  L138                Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188
[2024-11-03 12:30:29,557 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:30:29,558 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:30:29,558 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:30:29,559 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:30:29,572 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,572 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,578 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,603 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 12:30:29,604 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,604 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,618 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,626 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,634 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,637 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,642 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:30:29,643 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:30:29,643 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:30:29,643 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:30:29,644 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (1/1) ...
[2024-11-03 12:30:29,654 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:30:29,667 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:30:29,686 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 12:30:29,690 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 12:30:29,721 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:30:29,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:30:29,722 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:30:29,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:30:29,722 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:30:29,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:30:29,828 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:30:29,830 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:30:36,079 INFO  L?                        ?]: Removed 18 outVars from TransFormulas that were not future-live.
[2024-11-03 12:30:36,079 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:30:36,095 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:30:36,096 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:30:36,096 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:30:36 BoogieIcfgContainer
[2024-11-03 12:30:36,096 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:30:36,100 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:30:36,100 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:30:36,103 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:30:36,104 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:30:29" (1/3) ...
[2024-11-03 12:30:36,105 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbedc8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:30:36, skipping insertion in model container
[2024-11-03 12:30:36,105 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:29" (2/3) ...
[2024-11-03 12:30:36,105 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbedc8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:30:36, skipping insertion in model container
[2024-11-03 12:30:36,106 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:30:36" (3/3) ...
[2024-11-03 12:30:36,108 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-30.i
[2024-11-03 12:30:36,125 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:30:36,125 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:30:36,188 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:30:36,194 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;@68cb8544, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:30:36,194 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:30:36,198 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 79 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 12:30:36,214 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2024-11-03 12:30:36,214 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:30:36,215 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:36,216 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:30:36,223 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:30:36,223 INFO  L85        PathProgramCache]: Analyzing trace with hash 1847948568, now seen corresponding path program 1 times
[2024-11-03 12:30:36,233 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:30:36,234 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592827224]
[2024-11-03 12:30:36,234 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:30:36,236 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:30:36,237 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:30:36,239 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 12:30:36,241 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:30:36,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:30:36,437 INFO  L255         TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:30:36,452 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:30:36,510 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked.
[2024-11-03 12:30:36,510 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:30:36,813 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked.
[2024-11-03 12:30:36,815 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:30:36,815 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592827224]
[2024-11-03 12:30:36,816 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1592827224] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:30:36,816 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:30:36,816 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:30:36,818 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714267516]
[2024-11-03 12:30:36,819 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:30:36,826 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:30:36,827 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:30:36,853 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:30:36,853 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:30:36,856 INFO  L87              Difference]: Start difference. First operand  has 79 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24)
[2024-11-03 12:30:36,892 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:30:36,892 INFO  L93              Difference]: Finished difference Result 150 states and 262 transitions.
[2024-11-03 12:30:36,895 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:30:36,897 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 158
[2024-11-03 12:30:36,897 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:30:36,906 INFO  L225             Difference]: With dead ends: 150
[2024-11-03 12:30:36,907 INFO  L226             Difference]: Without dead ends: 74
[2024-11-03 12:30:36,913 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 314 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 12:30:36,919 INFO  L432           NwaCegarLoop]: 112 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, 112 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 12:30:36,920 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:30:36,939 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2024-11-03 12:30:36,969 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74.
[2024-11-03 12:30:36,970 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 48 states have internal predecessors, (64), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 12:30:36,975 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 112 transitions.
[2024-11-03 12:30:36,977 INFO  L78                 Accepts]: Start accepts. Automaton has 74 states and 112 transitions. Word has length 158
[2024-11-03 12:30:36,977 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:30:36,977 INFO  L471      AbstractCegarLoop]: Abstraction has 74 states and 112 transitions.
[2024-11-03 12:30:36,978 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24)
[2024-11-03 12:30:36,978 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 112 transitions.
[2024-11-03 12:30:36,983 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2024-11-03 12:30:36,983 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:30:36,983 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:36,987 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 12:30:37,184 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:30:37,185 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:30:37,186 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:30:37,186 INFO  L85        PathProgramCache]: Analyzing trace with hash -1486965292, now seen corresponding path program 1 times
[2024-11-03 12:30:37,186 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:30:37,186 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937615942]
[2024-11-03 12:30:37,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:30:37,187 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:30:37,187 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:30:37,189 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 12:30:37,189 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:30:37,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:30:37,329 INFO  L255         TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 12:30:37,340 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:30:38,047 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 12:30:38,048 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:30:38,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 12:30:38,449 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:30:38,450 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937615942]
[2024-11-03 12:30:38,450 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [937615942] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:30:38,450 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:30:38,451 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4
[2024-11-03 12:30:38,451 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674398297]
[2024-11-03 12:30:38,452 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:30:38,454 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 12:30:38,454 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:30:38,456 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 12:30:38,456 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:30:38,456 INFO  L87              Difference]: Start difference. First operand 74 states and 112 transitions. Second operand  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48)
[2024-11-03 12:30:41,839 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:30:46,183 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:30:49,809 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:30:49,811 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:30:49,811 INFO  L93              Difference]: Finished difference Result 256 states and 387 transitions.
[2024-11-03 12:30:49,844 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 12:30:49,845 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 158
[2024-11-03 12:30:49,846 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:30:49,849 INFO  L225             Difference]: With dead ends: 256
[2024-11-03 12:30:49,849 INFO  L226             Difference]: Without dead ends: 185
[2024-11-03 12:30:49,850 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 12:30:49,851 INFO  L432           NwaCegarLoop]: 122 mSDtfsCounter, 134 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time
[2024-11-03 12:30:49,851 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 357 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time]
[2024-11-03 12:30:49,852 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 185 states.
[2024-11-03 12:30:49,893 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 134.
[2024-11-03 12:30:49,894 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 134 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 83 states have internal predecessors, (105), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2024-11-03 12:30:49,896 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 201 transitions.
[2024-11-03 12:30:49,897 INFO  L78                 Accepts]: Start accepts. Automaton has 134 states and 201 transitions. Word has length 158
[2024-11-03 12:30:49,901 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:30:49,902 INFO  L471      AbstractCegarLoop]: Abstraction has 134 states and 201 transitions.
[2024-11-03 12:30:49,902 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48)
[2024-11-03 12:30:49,902 INFO  L276                IsEmpty]: Start isEmpty. Operand 134 states and 201 transitions.
[2024-11-03 12:30:49,904 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2024-11-03 12:30:49,907 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:30:49,907 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:49,912 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0
[2024-11-03 12:30:50,108 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:30:50,109 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:30:50,109 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:30:50,110 INFO  L85        PathProgramCache]: Analyzing trace with hash -1348169896, now seen corresponding path program 1 times
[2024-11-03 12:30:50,110 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:30:50,110 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150223929]
[2024-11-03 12:30:50,110 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:30:50,110 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:30:50,110 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:30:50,112 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 12:30:50,113 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:30:50,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:30:50,229 INFO  L255         TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-03 12:30:50,239 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:30:52,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 23 proven. 69 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-03 12:30:52,211 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:31:06,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked.
[2024-11-03 12:31:06,118 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:31:06,119 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150223929]
[2024-11-03 12:31:06,119 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1150223929] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:31:06,119 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:31:06,119 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15
[2024-11-03 12:31:06,119 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163561509]
[2024-11-03 12:31:06,119 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:31:06,121 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-03 12:31:06,121 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:31:06,122 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-03 12:31:06,123 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210
[2024-11-03 12:31:06,124 INFO  L87              Difference]: Start difference. First operand 134 states and 201 transitions. Second operand  has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 3 states have call successors, (48)
[2024-11-03 12:31:12,865 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 12:31:16,066 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 12:31:21,657 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:31:21,657 INFO  L93              Difference]: Finished difference Result 599 states and 874 transitions.
[2024-11-03 12:31:21,658 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2024-11-03 12:31:21,658 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 3 states have call successors, (48) Word has length 159
[2024-11-03 12:31:21,659 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:31:21,664 INFO  L225             Difference]: With dead ends: 599
[2024-11-03 12:31:21,664 INFO  L226             Difference]: Without dead ends: 468
[2024-11-03 12:31:21,666 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 305 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=275, Invalid=781, Unknown=0, NotChecked=0, Total=1056
[2024-11-03 12:31:21,667 INFO  L432           NwaCegarLoop]: 144 mSDtfsCounter, 280 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time
[2024-11-03 12:31:21,668 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 627 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time]
[2024-11-03 12:31:21,670 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 468 states.
[2024-11-03 12:31:21,740 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 146.
[2024-11-03 12:31:21,740 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 146 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 93 states have internal predecessors, (115), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2024-11-03 12:31:21,742 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 211 transitions.
[2024-11-03 12:31:21,743 INFO  L78                 Accepts]: Start accepts. Automaton has 146 states and 211 transitions. Word has length 159
[2024-11-03 12:31:21,743 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:31:21,744 INFO  L471      AbstractCegarLoop]: Abstraction has 146 states and 211 transitions.
[2024-11-03 12:31:21,744 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 3 states have call successors, (48)
[2024-11-03 12:31:21,744 INFO  L276                IsEmpty]: Start isEmpty. Operand 146 states and 211 transitions.
[2024-11-03 12:31:21,746 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2024-11-03 12:31:21,746 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:31:21,747 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:21,756 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 12:31:21,951 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:21,952 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:31:21,952 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:31:21,952 INFO  L85        PathProgramCache]: Analyzing trace with hash 426837466, now seen corresponding path program 1 times
[2024-11-03 12:31:21,952 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:31:21,953 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733098982]
[2024-11-03 12:31:21,953 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:31:21,953 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:31:21,953 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:21,955 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 12:31:21,955 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:31:22,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:31:22,043 INFO  L255         TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-03 12:31:22,050 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:31:22,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 503 proven. 21 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked.
[2024-11-03 12:31:22,685 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:31:23,186 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 48 proven. 21 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked.
[2024-11-03 12:31:23,187 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:31:23,187 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733098982]
[2024-11-03 12:31:23,187 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1733098982] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:31:23,187 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:31:23,187 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12
[2024-11-03 12:31:23,187 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690414933]
[2024-11-03 12:31:23,187 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:31:23,188 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-03 12:31:23,188 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:31:23,190 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-03 12:31:23,191 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2024-11-03 12:31:23,191 INFO  L87              Difference]: Start difference. First operand 146 states and 211 transitions. Second operand  has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2024-11-03 12:31:28,614 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:31:31,896 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:31:31,995 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:31:31,996 INFO  L93              Difference]: Finished difference Result 237 states and 334 transitions.
[2024-11-03 12:31:32,030 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-11-03 12:31:32,030 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 159
[2024-11-03 12:31:32,031 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:31:32,032 INFO  L225             Difference]: With dead ends: 237
[2024-11-03 12:31:32,033 INFO  L226             Difference]: Without dead ends: 94
[2024-11-03 12:31:32,034 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 307 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=186, Invalid=414, Unknown=0, NotChecked=0, Total=600
[2024-11-03 12:31:32,035 INFO  L432           NwaCegarLoop]: 74 mSDtfsCounter, 222 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 163 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time
[2024-11-03 12:31:32,035 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 219 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 228 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time]
[2024-11-03 12:31:32,036 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2024-11-03 12:31:32,057 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88.
[2024-11-03 12:31:32,057 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 88 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 59 states have internal predecessors, (70), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 12:31:32,058 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 118 transitions.
[2024-11-03 12:31:32,059 INFO  L78                 Accepts]: Start accepts. Automaton has 88 states and 118 transitions. Word has length 159
[2024-11-03 12:31:32,059 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:31:32,059 INFO  L471      AbstractCegarLoop]: Abstraction has 88 states and 118 transitions.
[2024-11-03 12:31:32,060 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2024-11-03 12:31:32,060 INFO  L276                IsEmpty]: Start isEmpty. Operand 88 states and 118 transitions.
[2024-11-03 12:31:32,061 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2024-11-03 12:31:32,061 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:31:32,062 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:32,066 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Forceful destruction successful, exit code 0
[2024-11-03 12:31:32,265 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:32,265 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:31:32,266 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:31:32,266 INFO  L85        PathProgramCache]: Analyzing trace with hash -1261956621, now seen corresponding path program 1 times
[2024-11-03 12:31:32,266 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:31:32,266 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414387858]
[2024-11-03 12:31:32,266 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:31:32,266 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:31:32,267 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:32,268 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 12:31:32,269 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process
[2024-11-03 12:31:32,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:31:32,406 INFO  L255         TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 49 conjuncts are in the unsatisfiable core
[2024-11-03 12:31:32,414 INFO  L278         TraceCheckSpWp]: Computing forward predicates...