/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-69.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:35:50,422 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:35:50,469 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 12:35:50,475 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:35:50,475 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:35:50,493 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:35:50,494 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:35:50,494 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:35:50,494 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:35:50,494 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:35:50,495 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:35:50,495 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:35:50,496 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:35:50,498 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:35:50,499 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:35:50,499 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:35:50,499 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:35:50,499 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:35:50,499 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:35:50,499 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:35:50,500 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:35:50,501 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:35:50,501 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:35:50,501 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:35:50,501 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:35:50,502 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:35:50,502 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:35:50,502 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:35:50,502 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:35:50,502 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:35:50,502 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:35:50,502 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:35:50,503 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:35:50,503 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:35:50,503 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:35:50,503 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:35:50,503 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:35:50,503 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:35:50,503 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:35:50,503 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:35:50,504 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:35:50,504 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:35:50,504 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:35:50,504 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:35:50,504 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:35:50,684 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:35:50,704 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:35:50,706 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:35:50,707 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:35:50,708 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:35:50,709 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-69.i
[2024-11-03 12:35:51,988 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:35:52,123 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:35:52,123 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-69.i
[2024-11-03 12:35:52,129 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6355844ff/460ae48c81814d6b821a3e8b22b05f72/FLAGaeeff9073
[2024-11-03 12:35:52,535 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6355844ff/460ae48c81814d6b821a3e8b22b05f72
[2024-11-03 12:35:52,539 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:35:52,541 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:35:52,541 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:35:52,542 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:35:52,546 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:35:52,546 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,547 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b53af99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52, skipping insertion in model container
[2024-11-03 12:35:52,547 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,580 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:35:52,697 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-69.i[916,929]
[2024-11-03 12:35:52,756 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:35:52,767 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:35:52,777 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-69.i[916,929]
[2024-11-03 12:35:52,808 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:35:52,824 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:35:52,825 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52 WrapperNode
[2024-11-03 12:35:52,825 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:35:52,826 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:35:52,826 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:35:52,826 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:35:52,830 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,839 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,860 INFO  L138                Inliner]: procedures = 27, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 195
[2024-11-03 12:35:52,860 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:35:52,861 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:35:52,861 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:35:52,861 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:35:52,868 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,869 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,876 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,889 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 12:35:52,889 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,889 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,903 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,910 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,912 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,913 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,915 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:35:52,916 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:35:52,916 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:35:52,916 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:35:52,917 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (1/1) ...
[2024-11-03 12:35:52,924 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:35:52,935 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:35:52,947 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 12:35:52,950 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 12:35:52,970 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:35:52,970 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:35:52,970 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:35:52,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:35:52,970 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:35:52,972 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:35:53,042 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:35:53,044 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:36:05,194 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-03 12:36:05,194 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:36:05,204 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:36:05,204 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:36:05,204 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:36:05 BoogieIcfgContainer
[2024-11-03 12:36:05,204 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:36:05,206 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:36:05,206 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:36:05,208 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:36:05,209 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:35:52" (1/3) ...
[2024-11-03 12:36:05,209 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8c6f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:36:05, skipping insertion in model container
[2024-11-03 12:36:05,209 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:52" (2/3) ...
[2024-11-03 12:36:05,209 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8c6f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:36:05, skipping insertion in model container
[2024-11-03 12:36:05,209 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:36:05" (3/3) ...
[2024-11-03 12:36:05,211 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-69.i
[2024-11-03 12:36:05,224 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:36:05,224 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:36:05,269 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:36:05,274 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;@26705f3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:36:05,274 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:36:05,278 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 87 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 57 states have internal predecessors, (83), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-03 12:36:05,290 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-03 12:36:05,290 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:36:05,291 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:05,291 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:36:05,295 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:36:05,295 INFO  L85        PathProgramCache]: Analyzing trace with hash 1063871195, now seen corresponding path program 1 times
[2024-11-03 12:36:05,300 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:36:05,301 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326300824]
[2024-11-03 12:36:05,301 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:36:05,302 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:36:05,302 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:05,304 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 12:36:05,305 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:36:05,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:36:05,429 INFO  L255         TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:36:05,441 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:36:05,492 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked.
[2024-11-03 12:36:05,498 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:36:06,536 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked.
[2024-11-03 12:36:06,537 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:36:06,537 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326300824]
[2024-11-03 12:36:06,537 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [326300824] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:36:06,538 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:36:06,538 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:36:06,539 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313043052]
[2024-11-03 12:36:06,539 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:36:06,543 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:36:06,543 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:36:06,559 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:36:06,560 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:36:06,562 INFO  L87              Difference]: Start difference. First operand  has 87 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 57 states have internal predecessors, (83), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand  has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 1 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28)
[2024-11-03 12:36:06,585 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:36:06,585 INFO  L93              Difference]: Finished difference Result 167 states and 300 transitions.
[2024-11-03 12:36:06,586 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:36:06,587 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 1 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 177
[2024-11-03 12:36:06,587 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:36:06,592 INFO  L225             Difference]: With dead ends: 167
[2024-11-03 12:36:06,592 INFO  L226             Difference]: Without dead ends: 83
[2024-11-03 12:36:06,595 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:36:06,597 INFO  L432           NwaCegarLoop]: 132 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, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 12:36:06,598 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:36:06,611 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2024-11-03 12:36:06,633 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83.
[2024-11-03 12:36:06,634 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 53 states have internal predecessors, (76), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-03 12:36:06,638 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 132 transitions.
[2024-11-03 12:36:06,639 INFO  L78                 Accepts]: Start accepts. Automaton has 83 states and 132 transitions. Word has length 177
[2024-11-03 12:36:06,639 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:36:06,640 INFO  L471      AbstractCegarLoop]: Abstraction has 83 states and 132 transitions.
[2024-11-03 12:36:06,640 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 1 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28)
[2024-11-03 12:36:06,640 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 132 transitions.
[2024-11-03 12:36:06,645 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-03 12:36:06,645 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:36:06,645 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:06,648 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 12:36:06,847 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:06,847 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:36:06,848 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:36:06,848 INFO  L85        PathProgramCache]: Analyzing trace with hash -112237409, now seen corresponding path program 1 times
[2024-11-03 12:36:06,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:36:06,848 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971435128]
[2024-11-03 12:36:06,849 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:36:06,849 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:36:06,849 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:06,851 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 12:36:06,851 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:36:06,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:36:06,956 INFO  L255         TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 12:36:06,967 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:36:07,891 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 573 proven. 18 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked.
[2024-11-03 12:36:07,892 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:36:09,602 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 63 proven. 18 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked.
[2024-11-03 12:36:09,602 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:36:09,603 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971435128]
[2024-11-03 12:36:09,603 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1971435128] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:36:09,603 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:36:09,603 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 12:36:09,603 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869405507]
[2024-11-03 12:36:09,603 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:36:09,605 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 12:36:09,605 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:36:09,605 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 12:36:09,606 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 12:36:09,606 INFO  L87              Difference]: Start difference. First operand 83 states and 132 transitions. Second operand  has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2024-11-03 12:36:15,629 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:19,633 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:23,640 WARN  L539   Checker$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 12:36:23,644 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:36:23,644 INFO  L93              Difference]: Finished difference Result 171 states and 268 transitions.
[2024-11-03 12:36:23,717 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 12:36:23,718 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 177
[2024-11-03 12:36:23,719 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:36:23,720 INFO  L225             Difference]: With dead ends: 171
[2024-11-03 12:36:23,720 INFO  L226             Difference]: Without dead ends: 91
[2024-11-03 12:36:23,721 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 346 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2024-11-03 12:36:23,722 INFO  L432           NwaCegarLoop]: 97 mSDtfsCounter, 152 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 45 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time
[2024-11-03 12:36:23,722 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 234 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 150 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time]
[2024-11-03 12:36:23,723 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2024-11-03 12:36:23,740 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87.
[2024-11-03 12:36:23,741 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 56 states have internal predecessors, (78), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-03 12:36:23,745 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 134 transitions.
[2024-11-03 12:36:23,746 INFO  L78                 Accepts]: Start accepts. Automaton has 87 states and 134 transitions. Word has length 177
[2024-11-03 12:36:23,746 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:36:23,746 INFO  L471      AbstractCegarLoop]: Abstraction has 87 states and 134 transitions.
[2024-11-03 12:36:23,747 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2024-11-03 12:36:23,747 INFO  L276                IsEmpty]: Start isEmpty. Operand 87 states and 134 transitions.
[2024-11-03 12:36:23,752 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-03 12:36:23,752 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:36:23,752 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:23,757 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:36:23,953 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:23,953 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:36:23,954 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:36:23,954 INFO  L85        PathProgramCache]: Analyzing trace with hash 1735493023, now seen corresponding path program 1 times
[2024-11-03 12:36:23,954 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:36:23,954 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690032559]
[2024-11-03 12:36:23,955 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:36:23,955 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:36:23,955 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:23,958 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 12:36:23,960 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:36:24,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:36:24,029 INFO  L255         TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 12:36:24,033 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:36:25,249 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 573 proven. 18 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked.
[2024-11-03 12:36:25,249 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:36:27,342 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 63 proven. 18 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked.
[2024-11-03 12:36:27,342 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:36:27,342 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690032559]
[2024-11-03 12:36:27,343 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [690032559] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:36:27,346 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:36:27,346 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-03 12:36:27,346 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405420037]
[2024-11-03 12:36:27,347 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:36:27,347 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 12:36:27,347 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:36:27,348 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 12:36:27,348 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-03 12:36:27,348 INFO  L87              Difference]: Start difference. First operand 87 states and 134 transitions. Second operand  has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2024-11-03 12:36:34,066 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:38,069 WARN  L539   Checker$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 12:36:42,078 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:46,089 WARN  L539   Checker$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 12:36:50,098 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:54,109 WARN  L539   Checker$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 12:36:58,118 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 12:36:59,223 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:36:59,223 INFO  L93              Difference]: Finished difference Result 262 states and 402 transitions.
[2024-11-03 12:36:59,223 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-03 12:36:59,224 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 177
[2024-11-03 12:36:59,224 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:36:59,226 INFO  L225             Difference]: With dead ends: 262
[2024-11-03 12:36:59,226 INFO  L226             Difference]: Without dead ends: 178
[2024-11-03 12:36:59,227 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 346 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2024-11-03 12:36:59,232 INFO  L432           NwaCegarLoop]: 93 mSDtfsCounter, 338 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 197 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time
[2024-11-03 12:36:59,232 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 308 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 200 Invalid, 7 Unknown, 0 Unchecked, 30.8s Time]
[2024-11-03 12:36:59,236 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 178 states.
[2024-11-03 12:36:59,258 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 167.
[2024-11-03 12:36:59,258 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 167 states, 106 states have (on average 1.3679245283018868) internal successors, (145), 106 states have internal predecessors, (145), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2024-11-03 12:36:59,260 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 257 transitions.
[2024-11-03 12:36:59,260 INFO  L78                 Accepts]: Start accepts. Automaton has 167 states and 257 transitions. Word has length 177
[2024-11-03 12:36:59,261 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:36:59,262 INFO  L471      AbstractCegarLoop]: Abstraction has 167 states and 257 transitions.
[2024-11-03 12:36:59,263 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2024-11-03 12:36:59,263 INFO  L276                IsEmpty]: Start isEmpty. Operand 167 states and 257 transitions.
[2024-11-03 12:36:59,265 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-03 12:36:59,265 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:36:59,265 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:59,269 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 12:36:59,465 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:59,467 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:36:59,467 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:36:59,467 INFO  L85        PathProgramCache]: Analyzing trace with hash 926146397, now seen corresponding path program 1 times
[2024-11-03 12:36:59,467 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:36:59,468 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221438957]
[2024-11-03 12:36:59,468 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:36:59,468 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:36:59,468 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:59,471 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 12:36:59,473 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:36:59,533 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:36:59,535 INFO  L255         TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 39 conjuncts are in the unsatisfiable core
[2024-11-03 12:36:59,542 INFO  L278         TraceCheckSpWp]: Computing forward predicates...