/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-73.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:36:30,541 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:36:30,599 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 12:36:30,603 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:36:30,604 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:36:30,631 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:36:30,633 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:36:30,633 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:36:30,634 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:36:30,637 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:36:30,637 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:36:30,638 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:36:30,638 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:36:30,638 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:36:30,638 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:36:30,639 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:36:30,639 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:36:30,640 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:36:30,640 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:36:30,640 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:36:30,640 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:36:30,641 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:36:30,641 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:36:30,641 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:36:30,641 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:36:30,642 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:36:30,642 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:36:30,642 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:36:30,642 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:36:30,643 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:36:30,643 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:36:30,643 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:36:30,643 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:36:30,643 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:36:30,644 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:36:30,644 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:36:30,645 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:36:30,646 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:36:30,646 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:36:30,646 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:36:30,646 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:36:30,647 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:36:30,647 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:36:30,647 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:36:30,647 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:36:30,873 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:36:30,897 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:36:30,900 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:36:30,901 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:36:30,902 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:36:30,904 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-73.i
[2024-11-03 12:36:32,287 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:36:32,515 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:36:32,516 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-73.i
[2024-11-03 12:36:32,529 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2bd6219b/8017ffe0d74342c681471de08b8a195f/FLAGcff1b6f95
[2024-11-03 12:36:32,547 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2bd6219b/8017ffe0d74342c681471de08b8a195f
[2024-11-03 12:36:32,549 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:36:32,550 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:36:32,553 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:36:32,553 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:36:32,557 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:36:32,558 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:32,559 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5afecb47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32, skipping insertion in model container
[2024-11-03 12:36:32,559 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:32,592 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:36:32,753 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-73.i[916,929]
[2024-11-03 12:36:32,826 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:36:32,840 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:36:32,850 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-73.i[916,929]
[2024-11-03 12:36:32,889 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:36:32,908 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:36:32,908 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32 WrapperNode
[2024-11-03 12:36:32,909 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:36:32,910 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:36:32,910 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:36:32,910 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:36:32,915 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:32,929 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:32,960 INFO  L138                Inliner]: procedures = 27, calls = 50, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 224
[2024-11-03 12:36:32,960 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:36:32,961 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:36:32,961 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:36:32,961 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:36:32,971 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:32,972 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:32,977 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:32,999 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 12:36:32,999 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:32,999 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:33,011 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:33,018 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:33,050 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:33,053 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:33,062 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:36:33,063 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:36:33,063 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:36:33,063 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:36:33,064 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (1/1) ...
[2024-11-03 12:36:33,074 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:36:33,085 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:36:33,102 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 12:36:33,104 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 12:36:33,132 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:36:33,132 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:36:33,132 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:36:33,132 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:36:33,132 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:36:33,133 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:36:33,229 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:36:33,231 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:36:40,135 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-03 12:36:40,135 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:36:40,158 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:36:40,158 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:36:40,159 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:36:40 BoogieIcfgContainer
[2024-11-03 12:36:40,159 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:36:40,163 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:36:40,163 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:36:40,165 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:36:40,166 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:36:32" (1/3) ...
[2024-11-03 12:36:40,166 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e1261c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:36:40, skipping insertion in model container
[2024-11-03 12:36:40,166 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:36:32" (2/3) ...
[2024-11-03 12:36:40,167 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e1261c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:36:40, skipping insertion in model container
[2024-11-03 12:36:40,167 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:36:40" (3/3) ...
[2024-11-03 12:36:40,168 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-73.i
[2024-11-03 12:36:40,183 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:36:40,184 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:36:40,246 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:36:40,252 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;@3c02d610, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:36:40,252 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:36:40,257 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 102 states, 62 states have (on average 1.403225806451613) internal successors, (87), 63 states have internal predecessors, (87), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2024-11-03 12:36:40,270 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 235
[2024-11-03 12:36:40,270 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:36:40,271 INFO  L215           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:40,271 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:36:40,276 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:36:40,276 INFO  L85        PathProgramCache]: Analyzing trace with hash -1451449378, now seen corresponding path program 1 times
[2024-11-03 12:36:40,283 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:36:40,283 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511562762]
[2024-11-03 12:36:40,283 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:36:40,285 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:36:40,286 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:40,288 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 12:36:40,290 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:36:40,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:36:40,525 INFO  L255         TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 12:36:40,539 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:36:41,269 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2024-11-03 12:36:41,270 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:36:42,572 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2024-11-03 12:36:42,573 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:36:42,574 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511562762]
[2024-11-03 12:36:42,574 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1511562762] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:36:42,574 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:36:42,575 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5
[2024-11-03 12:36:42,577 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504911455]
[2024-11-03 12:36:42,578 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:36:42,586 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-03 12:36:42,587 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:36:42,616 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-03 12:36:42,617 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 12:36:42,620 INFO  L87              Difference]: Start difference. First operand  has 102 states, 62 states have (on average 1.403225806451613) internal successors, (87), 63 states have internal predecessors, (87), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand  has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37)
[2024-11-03 12:36:48,342 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:50,878 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:52,001 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:36:52,002 INFO  L93              Difference]: Finished difference Result 339 states and 640 transitions.
[2024-11-03 12:36:52,004 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 12:36:52,006 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) Word has length 234
[2024-11-03 12:36:52,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:36:52,017 INFO  L225             Difference]: With dead ends: 339
[2024-11-03 12:36:52,017 INFO  L226             Difference]: Without dead ends: 240
[2024-11-03 12:36:52,021 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-03 12:36:52,025 INFO  L432           NwaCegarLoop]: 203 mSDtfsCounter, 409 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 190 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time
[2024-11-03 12:36:52,025 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 308 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 165 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time]
[2024-11-03 12:36:52,040 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 240 states.
[2024-11-03 12:36:52,130 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 236.
[2024-11-03 12:36:52,133 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 236 states, 132 states have (on average 1.2272727272727273) internal successors, (162), 134 states have internal predecessors, (162), 99 states have call successors, (99), 4 states have call predecessors, (99), 4 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99)
[2024-11-03 12:36:52,162 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 360 transitions.
[2024-11-03 12:36:52,167 INFO  L78                 Accepts]: Start accepts. Automaton has 236 states and 360 transitions. Word has length 234
[2024-11-03 12:36:52,170 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:36:52,170 INFO  L471      AbstractCegarLoop]: Abstraction has 236 states and 360 transitions.
[2024-11-03 12:36:52,170 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37)
[2024-11-03 12:36:52,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 236 states and 360 transitions.
[2024-11-03 12:36:52,177 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 235
[2024-11-03 12:36:52,178 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:36:52,178 INFO  L215           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:52,183 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 12:36:52,379 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:52,380 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:36:52,381 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:36:52,381 INFO  L85        PathProgramCache]: Analyzing trace with hash 1889658970, now seen corresponding path program 1 times
[2024-11-03 12:36:52,381 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:36:52,381 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939641127]
[2024-11-03 12:36:52,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:36:52,382 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:36:52,382 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:52,385 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 12:36:52,386 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:36:52,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:36:52,526 INFO  L255         TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 12:36:52,537 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:36:52,822 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2024-11-03 12:36:52,822 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:36:53,949 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2024-11-03 12:36:53,950 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:36:53,950 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939641127]
[2024-11-03 12:36:53,950 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1939641127] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:36:53,950 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:36:53,950 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5
[2024-11-03 12:36:53,951 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855269621]
[2024-11-03 12:36:53,951 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:36:53,953 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-03 12:36:53,953 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:36:53,954 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-03 12:36:53,954 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 12:36:53,954 INFO  L87              Difference]: Start difference. First operand 236 states and 360 transitions. Second operand  has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37)
[2024-11-03 12:36:59,476 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:37:03,479 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:37:07,486 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:37:08,212 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:37:08,212 INFO  L93              Difference]: Finished difference Result 435 states and 657 transitions.
[2024-11-03 12:37:08,213 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 12:37:08,213 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) Word has length 234
[2024-11-03 12:37:08,214 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:37:08,220 INFO  L225             Difference]: With dead ends: 435
[2024-11-03 12:37:08,220 INFO  L226             Difference]: Without dead ends: 244
[2024-11-03 12:37:08,221 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-03 12:37:08,222 INFO  L432           NwaCegarLoop]: 301 mSDtfsCounter, 225 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time
[2024-11-03 12:37:08,223 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 458 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 145 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time]
[2024-11-03 12:37:08,227 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 244 states.
[2024-11-03 12:37:08,248 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 122.
[2024-11-03 12:37:08,249 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 122 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 82 states have internal predecessors, (102), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2024-11-03 12:37:08,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 176 transitions.
[2024-11-03 12:37:08,252 INFO  L78                 Accepts]: Start accepts. Automaton has 122 states and 176 transitions. Word has length 234
[2024-11-03 12:37:08,254 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:37:08,254 INFO  L471      AbstractCegarLoop]: Abstraction has 122 states and 176 transitions.
[2024-11-03 12:37:08,255 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37)
[2024-11-03 12:37:08,255 INFO  L276                IsEmpty]: Start isEmpty. Operand 122 states and 176 transitions.
[2024-11-03 12:37:08,258 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 235
[2024-11-03 12:37:08,259 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:37:08,259 INFO  L215           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:08,267 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:37:08,465 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:37:08,466 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:37:08,466 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:37:08,466 INFO  L85        PathProgramCache]: Analyzing trace with hash 1494712346, now seen corresponding path program 1 times
[2024-11-03 12:37:08,467 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:37:08,467 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848342241]
[2024-11-03 12:37:08,467 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:37:08,467 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:37:08,467 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:37:08,469 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 12:37:08,470 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:37:08,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:37:08,591 INFO  L255         TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 12:37:08,596 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:37:08,661 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2024-11-03 12:37:08,662 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:37:09,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2024-11-03 12:37:09,547 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:37:09,547 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848342241]
[2024-11-03 12:37:09,547 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1848342241] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:37:09,548 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:37:09,548 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-03 12:37:09,548 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598733291]
[2024-11-03 12:37:09,548 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:37:09,549 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 12:37:09,549 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:37:09,550 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 12:37:09,550 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:37:09,550 INFO  L87              Difference]: Start difference. First operand 122 states and 176 transitions. Second operand  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37)
[2024-11-03 12:37:14,717 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:37:18,648 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:37:19,198 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:37:19,199 INFO  L93              Difference]: Finished difference Result 365 states and 527 transitions.
[2024-11-03 12:37:19,199 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 12:37:19,200 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) Word has length 234
[2024-11-03 12:37:19,200 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:37:19,203 INFO  L225             Difference]: With dead ends: 365
[2024-11-03 12:37:19,203 INFO  L226             Difference]: Without dead ends: 246
[2024-11-03 12:37:19,204 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:37:19,209 INFO  L432           NwaCegarLoop]: 191 mSDtfsCounter, 192 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time
[2024-11-03 12:37:19,210 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 360 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 63 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time]
[2024-11-03 12:37:19,211 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 246 states.
[2024-11-03 12:37:19,237 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 181.
[2024-11-03 12:37:19,238 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 181 states, 124 states have (on average 1.2580645161290323) internal successors, (156), 125 states have internal predecessors, (156), 53 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53)
[2024-11-03 12:37:19,239 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 262 transitions.
[2024-11-03 12:37:19,241 INFO  L78                 Accepts]: Start accepts. Automaton has 181 states and 262 transitions. Word has length 234
[2024-11-03 12:37:19,242 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:37:19,242 INFO  L471      AbstractCegarLoop]: Abstraction has 181 states and 262 transitions.
[2024-11-03 12:37:19,242 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37)
[2024-11-03 12:37:19,243 INFO  L276                IsEmpty]: Start isEmpty. Operand 181 states and 262 transitions.
[2024-11-03 12:37:19,245 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 235
[2024-11-03 12:37:19,246 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:37:19,246 INFO  L215           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:19,259 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 12:37:19,446 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:37:19,447 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:37:19,448 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:37:19,448 INFO  L85        PathProgramCache]: Analyzing trace with hash 2068701466, now seen corresponding path program 1 times
[2024-11-03 12:37:19,448 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:37:19,448 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517463348]
[2024-11-03 12:37:19,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:37:19,449 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:37:19,449 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:37:19,451 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 12:37:19,452 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:37:19,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:37:19,580 INFO  L255         TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-03 12:37:19,588 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:37:29,704 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 1094 proven. 276 refuted. 0 times theorem prover too weak. 1294 trivial. 0 not checked.
[2024-11-03 12:37:29,704 INFO  L311         TraceCheckSpWp]: Computing backward predicates...