/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_amount50_file-13.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:24:14,019 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:24:14,058 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 13:24:14,065 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:24:14,066 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:24:14,090 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:24:14,090 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:24:14,091 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:24:14,091 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:24:14,092 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:24:14,092 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:24:14,092 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:24:14,093 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:24:14,093 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:24:14,095 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:24:14,095 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:24:14,095 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:24:14,096 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:24:14,096 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:24:14,096 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:24:14,096 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:24:14,097 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:24:14,097 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:24:14,097 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:24:14,097 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:24:14,097 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:24:14,098 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:24:14,098 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:24:14,098 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:24:14,098 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:24:14,098 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:24:14,099 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:24:14,099 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:24:14,099 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:24:14,099 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:24:14,099 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:24:14,099 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:24:14,099 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:24:14,100 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:24:14,100 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:24:14,100 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:24:14,100 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:24:14,100 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:24:14,100 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:24:14,100 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:24:14,312 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:24:14,333 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:24:14,337 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:24:14,338 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:24:14,338 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:24:14,339 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-13.i
[2024-11-03 13:24:15,664 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:24:15,820 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:24:15,821 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-13.i
[2024-11-03 13:24:15,827 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1054ab308/33dd907a7f3e41d9baeeec8eaab9ee6b/FLAG1a6b75db2
[2024-11-03 13:24:16,231 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1054ab308/33dd907a7f3e41d9baeeec8eaab9ee6b
[2024-11-03 13:24:16,233 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:24:16,234 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:24:16,235 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:24:16,235 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:24:16,243 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:24:16,243 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,244 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738ad194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16, skipping insertion in model container
[2024-11-03 13:24:16,244 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,265 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:24:16,385 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_amount50_file-13.i[915,928]
[2024-11-03 13:24:16,428 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:24:16,439 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:24:16,449 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_amount50_file-13.i[915,928]
[2024-11-03 13:24:16,475 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:24:16,491 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:24:16,492 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16 WrapperNode
[2024-11-03 13:24:16,492 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:24:16,493 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:24:16,493 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:24:16,493 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:24:16,502 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,516 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,545 INFO  L138                Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140
[2024-11-03 13:24:16,546 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:24:16,551 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:24:16,552 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:24:16,571 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:24:16,587 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,587 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,590 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,603 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 13:24:16,603 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,604 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,614 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,618 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,620 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,622 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,625 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:24:16,631 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:24:16,631 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:24:16,631 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:24:16,632 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (1/1) ...
[2024-11-03 13:24:16,643 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:24:16,653 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:24:16,668 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-03 13:24:16,670 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-03 13:24:16,694 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:24:16,695 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:24:16,695 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 13:24:16,695 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 13:24:16,695 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:24:16,695 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:24:16,770 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:24:16,772 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:24:21,212 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-03 13:24:21,212 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:24:21,227 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:24:21,227 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 13:24:21,228 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:24:21 BoogieIcfgContainer
[2024-11-03 13:24:21,228 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:24:21,230 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:24:21,230 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:24:21,234 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:24:21,234 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:24:16" (1/3) ...
[2024-11-03 13:24:21,235 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1783fb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:24:21, skipping insertion in model container
[2024-11-03 13:24:21,235 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:16" (2/3) ...
[2024-11-03 13:24:21,235 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1783fb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:24:21, skipping insertion in model container
[2024-11-03 13:24:21,236 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:24:21" (3/3) ...
[2024-11-03 13:24:21,237 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-13.i
[2024-11-03 13:24:21,252 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:24:21,252 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:24:21,307 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:24:21,313 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;@79d737e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:24:21,313 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:24:21,317 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 64 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 13:24:21,330 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-03 13:24:21,331 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:24:21,332 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:24:21,332 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:24:21,339 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:24:21,340 INFO  L85        PathProgramCache]: Analyzing trace with hash 2093180555, now seen corresponding path program 1 times
[2024-11-03 13:24:21,348 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:24:21,349 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329234202]
[2024-11-03 13:24:21,349 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:24:21,355 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:24:21,355 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:21,358 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:24:21,359 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:24:21,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:24:21,492 INFO  L255         TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 13:24:21,505 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:24:21,561 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-03 13:24:21,562 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:24:21,880 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-03 13:24:21,881 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:24:21,882 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329234202]
[2024-11-03 13:24:21,884 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [329234202] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:24:21,884 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:24:21,884 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 13:24:21,886 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658939630]
[2024-11-03 13:24:21,887 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:24:21,891 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 13:24:21,892 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:24:21,918 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 13:24:21,919 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:24:21,921 INFO  L87              Difference]: Start difference. First operand  has 64 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand  has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 13:24:21,948 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:24:21,948 INFO  L93              Difference]: Finished difference Result 121 states and 206 transitions.
[2024-11-03 13:24:21,950 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 13:24:21,951 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131
[2024-11-03 13:24:21,951 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:24:21,956 INFO  L225             Difference]: With dead ends: 121
[2024-11-03 13:24:21,957 INFO  L226             Difference]: Without dead ends: 60
[2024-11-03 13:24:21,960 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:24:21,962 INFO  L432           NwaCegarLoop]: 88 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, 88 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 13:24:21,963 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 13:24:21,976 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2024-11-03 13:24:21,993 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2024-11-03 13:24:21,994 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 13:24:21,995 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 88 transitions.
[2024-11-03 13:24:21,997 INFO  L78                 Accepts]: Start accepts. Automaton has 60 states and 88 transitions. Word has length 131
[2024-11-03 13:24:22,000 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:24:22,000 INFO  L471      AbstractCegarLoop]: Abstraction has 60 states and 88 transitions.
[2024-11-03 13:24:22,000 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 13:24:22,001 INFO  L276                IsEmpty]: Start isEmpty. Operand 60 states and 88 transitions.
[2024-11-03 13:24:22,003 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-03 13:24:22,003 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:24:22,003 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:24:22,006 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 13:24:22,204 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:22,205 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:24:22,205 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:24:22,206 INFO  L85        PathProgramCache]: Analyzing trace with hash -40423293, now seen corresponding path program 1 times
[2024-11-03 13:24:22,206 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:24:22,206 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964638202]
[2024-11-03 13:24:22,206 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:24:22,207 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:24:22,207 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:22,209 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:24:22,213 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:24:22,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:24:22,345 INFO  L255         TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 13:24:22,353 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:24:24,471 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 13:24:24,471 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:24:25,256 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 13:24:25,256 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:24:25,256 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964638202]
[2024-11-03 13:24:25,256 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [964638202] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:24:25,256 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:24:25,257 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 13:24:25,257 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955318694]
[2024-11-03 13:24:25,257 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:24:25,258 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 13:24:25,258 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:24:25,259 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 13:24:25,259 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-03 13:24:25,259 INFO  L87              Difference]: Start difference. First operand 60 states and 88 transitions. Second operand  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 13:24:27,865 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:24:31,147 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 13:24:31,148 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:24:31,148 INFO  L93              Difference]: Finished difference Result 175 states and 259 transitions.
[2024-11-03 13:24:31,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 13:24:31,172 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 131
[2024-11-03 13:24:31,172 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:24:31,174 INFO  L225             Difference]: With dead ends: 175
[2024-11-03 13:24:31,174 INFO  L226             Difference]: Without dead ends: 118
[2024-11-03 13:24:31,175 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-11-03 13:24:31,175 INFO  L432           NwaCegarLoop]: 83 mSDtfsCounter, 85 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2024-11-03 13:24:31,176 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 402 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2024-11-03 13:24:31,176 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2024-11-03 13:24:31,201 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 99.
[2024-11-03 13:24:31,202 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 99 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 56 states have internal predecessors, (66), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2024-11-03 13:24:31,205 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 146 transitions.
[2024-11-03 13:24:31,205 INFO  L78                 Accepts]: Start accepts. Automaton has 99 states and 146 transitions. Word has length 131
[2024-11-03 13:24:31,206 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:24:31,206 INFO  L471      AbstractCegarLoop]: Abstraction has 99 states and 146 transitions.
[2024-11-03 13:24:31,206 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 13:24:31,206 INFO  L276                IsEmpty]: Start isEmpty. Operand 99 states and 146 transitions.
[2024-11-03 13:24:31,207 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2024-11-03 13:24:31,207 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:24:31,208 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:24:31,213 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 13:24:31,408 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:31,408 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:24:31,409 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:24:31,409 INFO  L85        PathProgramCache]: Analyzing trace with hash 229047843, now seen corresponding path program 1 times
[2024-11-03 13:24:31,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:24:31,409 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49422443]
[2024-11-03 13:24:31,409 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:24:31,409 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:24:31,410 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:31,411 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:24:31,412 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 13:24:31,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:24:31,466 INFO  L255         TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 13:24:31,469 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:24:32,035 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 19 proven. 57 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked.
[2024-11-03 13:24:32,036 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:24:32,293 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 13:24:32,294 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:24:32,294 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49422443]
[2024-11-03 13:24:32,294 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [49422443] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 13:24:32,294 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 13:24:32,294 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9
[2024-11-03 13:24:32,294 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243176346]
[2024-11-03 13:24:32,294 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 13:24:32,295 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 13:24:32,295 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:24:32,295 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 13:24:32,295 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-11-03 13:24:32,296 INFO  L87              Difference]: Start difference. First operand 99 states and 146 transitions. Second operand  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 13:24:35,621 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:24:38,380 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 13:24:38,477 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:24:38,478 INFO  L93              Difference]: Finished difference Result 175 states and 257 transitions.
[2024-11-03 13:24:38,478 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 13:24:38,478 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132
[2024-11-03 13:24:38,479 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:24:38,480 INFO  L225             Difference]: With dead ends: 175
[2024-11-03 13:24:38,480 INFO  L226             Difference]: Without dead ends: 118
[2024-11-03 13:24:38,481 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2024-11-03 13:24:38,481 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 25 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2024-11-03 13:24:38,481 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 220 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2024-11-03 13:24:38,482 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2024-11-03 13:24:38,492 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 102.
[2024-11-03 13:24:38,493 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 59 states have internal predecessors, (70), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2024-11-03 13:24:38,494 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 150 transitions.
[2024-11-03 13:24:38,494 INFO  L78                 Accepts]: Start accepts. Automaton has 102 states and 150 transitions. Word has length 132
[2024-11-03 13:24:38,494 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:24:38,495 INFO  L471      AbstractCegarLoop]: Abstraction has 102 states and 150 transitions.
[2024-11-03 13:24:38,495 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 13:24:38,495 INFO  L276                IsEmpty]: Start isEmpty. Operand 102 states and 150 transitions.
[2024-11-03 13:24:38,499 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2024-11-03 13:24:38,499 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:24:38,500 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:24:38,504 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 13:24:38,703 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:38,704 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:24:38,704 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:24:38,705 INFO  L85        PathProgramCache]: Analyzing trace with hash 930112421, now seen corresponding path program 1 times
[2024-11-03 13:24:38,705 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:24:38,705 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903554005]
[2024-11-03 13:24:38,705 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:24:38,705 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:24:38,705 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:38,706 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:24:38,709 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 13:24:38,783 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:24:38,793 INFO  L255         TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-03 13:24:38,798 INFO  L278         TraceCheckSpWp]: Computing forward predicates...