/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:58:45,047 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:58:45,090 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 21:58:45,097 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:58:45,098 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:58:45,111 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:58:45,111 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:58:45,111 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:58:45,112 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:58:45,112 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:58:45,112 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:58:45,112 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:58:45,113 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:58:45,113 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:58:45,113 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:58:45,114 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:58:45,114 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:58:45,114 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:58:45,114 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:58:45,114 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:58:45,115 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:58:45,115 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:58:45,115 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:58:45,116 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:58:45,116 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:58:45,116 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:58:45,116 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:58:45,117 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:58:45,117 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:58:45,117 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:58:45,117 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:58:45,117 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:58:45,118 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:58:45,118 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:58:45,118 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:58:45,118 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:58:45,118 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:58:45,119 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:58:45,119 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:58:45,119 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:58:45,119 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:58:45,120 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:58:45,120 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:58:45,120 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:58:45,120 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:58:45,314 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:58:45,332 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:58:45,333 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:58:45,334 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:58:45,335 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:58:45,336 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i
[2024-11-02 21:58:46,629 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:58:46,854 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:58:46,854 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i
[2024-11-02 21:58:46,866 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc76673d9/e3f035c3caf44a518b6c94bc6234b05c/FLAG1d2eb3729
[2024-11-02 21:58:46,884 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc76673d9/e3f035c3caf44a518b6c94bc6234b05c
[2024-11-02 21:58:46,886 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:58:46,887 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:58:46,890 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:58:46,890 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:58:46,894 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:58:46,895 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:58:46" (1/1) ...
[2024-11-02 21:58:46,895 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b27dbcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:46, skipping insertion in model container
[2024-11-02 21:58:46,896 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:58:46" (1/1) ...
[2024-11-02 21:58:46,938 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:58:47,082 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_amount250_file-8.i[915,928]
[2024-11-02 21:58:47,177 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:58:47,196 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:58:47,206 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_amount250_file-8.i[915,928]
[2024-11-02 21:58:47,258 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:58:47,277 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:58:47,277 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47 WrapperNode
[2024-11-02 21:58:47,277 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:58:47,278 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:58:47,278 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:58:47,278 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:58:47,283 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,296 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,331 INFO  L138                Inliner]: procedures = 27, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 336
[2024-11-02 21:58:47,332 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:58:47,332 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:58:47,332 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:58:47,332 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:58:47,341 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,341 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,354 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,380 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].
[2024-11-02 21:58:47,380 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,382 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,407 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,416 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,426 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,439 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,446 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:58:47,446 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:58:47,446 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:58:47,447 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:58:47,447 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (1/1) ...
[2024-11-02 21:58:47,451 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:58:47,458 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:58:47,471 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)
[2024-11-02 21:58:47,479 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
[2024-11-02 21:58:47,498 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:58:47,498 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:58:47,499 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:58:47,499 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:58:47,499 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:58:47,500 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:58:47,593 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:58:47,594 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:58:51,248 INFO  L?                        ?]: Removed 44 outVars from TransFormulas that were not future-live.
[2024-11-02 21:58:51,248 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:58:51,262 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:58:51,262 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:58:51,262 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:58:51 BoogieIcfgContainer
[2024-11-02 21:58:51,263 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:58:51,264 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:58:51,264 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:58:51,267 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:58:51,267 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:58:46" (1/3) ...
[2024-11-02 21:58:51,267 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115a52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:58:51, skipping insertion in model container
[2024-11-02 21:58:51,267 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:58:47" (2/3) ...
[2024-11-02 21:58:51,268 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115a52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:58:51, skipping insertion in model container
[2024-11-02 21:58:51,268 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:58:51" (3/3) ...
[2024-11-02 21:58:51,269 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-8.i
[2024-11-02 21:58:51,280 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:58:51,280 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:58:51,375 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:58:51,380 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;@6ef007f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:58:51,381 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:58:51,386 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 154 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 102 states have internal predecessors, (153), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2024-11-02 21:58:51,405 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 323
[2024-11-02 21:58:51,405 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:58:51,406 INFO  L215           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:58:51,407 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:58:51,410 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:58:51,410 INFO  L85        PathProgramCache]: Analyzing trace with hash 1272070780, now seen corresponding path program 1 times
[2024-11-02 21:58:51,417 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:58:51,417 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313683205]
[2024-11-02 21:58:51,417 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:58:51,420 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:58:51,420 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:58:51,422 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:58:51,423 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 21:58:51,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:58:51,796 INFO  L255         TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:58:51,814 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:58:51,857 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked.
[2024-11-02 21:58:51,857 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:58:52,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked.
[2024-11-02 21:58:52,380 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:58:52,381 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313683205]
[2024-11-02 21:58:52,381 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [313683205] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:58:52,381 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:58:52,381 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:58:52,384 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741100871]
[2024-11-02 21:58:52,385 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:58:52,392 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:58:52,393 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:58:52,416 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:58:52,417 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:58:52,420 INFO  L87              Difference]: Start difference. First operand  has 154 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 102 states have internal predecessors, (153), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50)
[2024-11-02 21:58:52,464 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:58:52,464 INFO  L93              Difference]: Finished difference Result 301 states and 550 transitions.
[2024-11-02 21:58:52,469 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:58:52,470 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) Word has length 322
[2024-11-02 21:58:52,471 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:58:52,478 INFO  L225             Difference]: With dead ends: 301
[2024-11-02 21:58:52,478 INFO  L226             Difference]: Without dead ends: 150
[2024-11-02 21:58:52,482 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:58:52,484 INFO  L432           NwaCegarLoop]: 246 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, 246 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
[2024-11-02 21:58:52,485 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:58:52,497 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 150 states.
[2024-11-02 21:58:52,524 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150.
[2024-11-02 21:58:52,526 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 150 states, 98 states have (on average 1.489795918367347) internal successors, (146), 98 states have internal predecessors, (146), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2024-11-02 21:58:52,528 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 246 transitions.
[2024-11-02 21:58:52,531 INFO  L78                 Accepts]: Start accepts. Automaton has 150 states and 246 transitions. Word has length 322
[2024-11-02 21:58:52,532 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:58:52,532 INFO  L471      AbstractCegarLoop]: Abstraction has 150 states and 246 transitions.
[2024-11-02 21:58:52,532 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50)
[2024-11-02 21:58:52,532 INFO  L276                IsEmpty]: Start isEmpty. Operand 150 states and 246 transitions.
[2024-11-02 21:58:52,537 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 323
[2024-11-02 21:58:52,537 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:58:52,537 INFO  L215           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:58:52,569 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-02 21:58:52,741 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:58:52,742 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:58:52,743 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:58:52,743 INFO  L85        PathProgramCache]: Analyzing trace with hash 963929796, now seen corresponding path program 1 times
[2024-11-02 21:58:52,743 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:58:52,743 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083550776]
[2024-11-02 21:58:52,743 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:58:52,744 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:58:52,744 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:58:52,745 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:58:52,747 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 21:58:53,014 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:58:53,045 INFO  L255         TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:58:53,052 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:58:54,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked.
[2024-11-02 21:58:54,653 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:58:55,411 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked.
[2024-11-02 21:58:55,411 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:58:55,411 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083550776]
[2024-11-02 21:58:55,411 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1083550776] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:58:55,411 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:58:55,412 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3
[2024-11-02 21:58:55,412 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216072867]
[2024-11-02 21:58:55,412 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:58:55,414 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 21:58:55,414 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:58:55,415 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 21:58:55,415 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:58:55,415 INFO  L87              Difference]: Start difference. First operand 150 states and 246 transitions. Second operand  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 1 states have call predecessors, (100), 1 states have call successors, (100)
[2024-11-02 21:58:57,962 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:59:01,674 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:59:01,692 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:59:01,693 INFO  L93              Difference]: Finished difference Result 432 states and 708 transitions.
[2024-11-02 21:59:01,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:59:01,757 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 1 states have call predecessors, (100), 1 states have call successors, (100) Word has length 322
[2024-11-02 21:59:01,759 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:59:01,762 INFO  L225             Difference]: With dead ends: 432
[2024-11-02 21:59:01,763 INFO  L226             Difference]: Without dead ends: 285
[2024-11-02 21:59:01,764 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 641 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:59:01,765 INFO  L432           NwaCegarLoop]: 228 mSDtfsCounter, 73 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2024-11-02 21:59:01,765 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 432 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2024-11-02 21:59:01,767 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 285 states.
[2024-11-02 21:59:01,795 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 283.
[2024-11-02 21:59:01,796 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 283 states, 180 states have (on average 1.3888888888888888) internal successors, (250), 180 states have internal predecessors, (250), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100)
[2024-11-02 21:59:01,801 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 450 transitions.
[2024-11-02 21:59:01,801 INFO  L78                 Accepts]: Start accepts. Automaton has 283 states and 450 transitions. Word has length 322
[2024-11-02 21:59:01,804 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:59:01,804 INFO  L471      AbstractCegarLoop]: Abstraction has 283 states and 450 transitions.
[2024-11-02 21:59:01,804 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 1 states have call predecessors, (100), 1 states have call successors, (100)
[2024-11-02 21:59:01,804 INFO  L276                IsEmpty]: Start isEmpty. Operand 283 states and 450 transitions.
[2024-11-02 21:59:01,808 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 323
[2024-11-02 21:59:01,809 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:59:01,809 INFO  L215           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:59:01,848 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-02 21:59:02,013 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:59:02,015 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:59:02,016 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:59:02,016 INFO  L85        PathProgramCache]: Analyzing trace with hash -215528324, now seen corresponding path program 1 times
[2024-11-02 21:59:02,016 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:59:02,016 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779870611]
[2024-11-02 21:59:02,016 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:59:02,017 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:59:02,017 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:59:02,019 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:59:02,021 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 21:59:02,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:59:02,316 INFO  L255         TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-02 21:59:02,321 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:59:04,592 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 1899 proven. 36 refuted. 0 times theorem prover too weak. 2965 trivial. 0 not checked.
[2024-11-02 21:59:04,593 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:59:06,471 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 111 proven. 36 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked.
[2024-11-02 21:59:06,471 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:59:06,472 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779870611]
[2024-11-02 21:59:06,472 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1779870611] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 21:59:06,472 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 21:59:06,472 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10
[2024-11-02 21:59:06,472 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121369811]
[2024-11-02 21:59:06,472 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 21:59:06,473 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-02 21:59:06,473 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:59:06,474 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-02 21:59:06,474 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90
[2024-11-02 21:59:06,474 INFO  L87              Difference]: Start difference. First operand 283 states and 450 transitions. Second operand  has 10 states, 10 states have (on average 13.9) internal successors, (139), 10 states have internal predecessors, (139), 4 states have call successors, (100), 3 states have call predecessors, (100), 5 states have return successors, (100), 4 states have call predecessors, (100), 4 states have call successors, (100)
[2024-11-02 21:59:10,469 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:59:18,876 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 21:59:19,614 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:59:19,615 INFO  L93              Difference]: Finished difference Result 1109 states and 1754 transitions.
[2024-11-02 21:59:19,618 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-02 21:59:19,619 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 13.9) internal successors, (139), 10 states have internal predecessors, (139), 4 states have call successors, (100), 3 states have call predecessors, (100), 5 states have return successors, (100), 4 states have call predecessors, (100), 4 states have call successors, (100) Word has length 322
[2024-11-02 21:59:19,620 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:59:19,628 INFO  L225             Difference]: With dead ends: 1109
[2024-11-02 21:59:19,628 INFO  L226             Difference]: Without dead ends: 829
[2024-11-02 21:59:19,634 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 633 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156
[2024-11-02 21:59:19,635 INFO  L432           NwaCegarLoop]: 174 mSDtfsCounter, 469 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time
[2024-11-02 21:59:19,635 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 994 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time]
[2024-11-02 21:59:19,636 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 829 states.
[2024-11-02 21:59:19,691 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 606.
[2024-11-02 21:59:19,692 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 606 states, 375 states have (on average 1.3493333333333333) internal successors, (506), 377 states have internal predecessors, (506), 224 states have call successors, (224), 6 states have call predecessors, (224), 6 states have return successors, (224), 222 states have call predecessors, (224), 224 states have call successors, (224)
[2024-11-02 21:59:19,694 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 954 transitions.
[2024-11-02 21:59:19,695 INFO  L78                 Accepts]: Start accepts. Automaton has 606 states and 954 transitions. Word has length 322
[2024-11-02 21:59:19,696 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:59:19,696 INFO  L471      AbstractCegarLoop]: Abstraction has 606 states and 954 transitions.
[2024-11-02 21:59:19,696 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 13.9) internal successors, (139), 10 states have internal predecessors, (139), 4 states have call successors, (100), 3 states have call predecessors, (100), 5 states have return successors, (100), 4 states have call predecessors, (100), 4 states have call successors, (100)
[2024-11-02 21:59:19,696 INFO  L276                IsEmpty]: Start isEmpty. Operand 606 states and 954 transitions.
[2024-11-02 21:59:19,697 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 323
[2024-11-02 21:59:19,698 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:59:19,698 INFO  L215           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:59:19,728 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-02 21:59:19,901 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:59:19,902 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:59:19,902 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:59:19,902 INFO  L85        PathProgramCache]: Analyzing trace with hash 207173502, now seen corresponding path program 1 times
[2024-11-02 21:59:19,903 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:59:19,903 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249781586]
[2024-11-02 21:59:19,903 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:59:19,903 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:59:19,903 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:59:19,910 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:59:19,911 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 21:59:20,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:59:20,214 INFO  L255         TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-02 21:59:20,220 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:59:26,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 1985 proven. 210 refuted. 0 times theorem prover too weak. 2705 trivial. 0 not checked.
[2024-11-02 21:59:26,368 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:59:30,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 78 proven. 213 refuted. 0 times theorem prover too weak. 4609 trivial. 0 not checked.
[2024-11-02 21:59:30,761 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:59:30,761 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249781586]
[2024-11-02 21:59:30,761 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [249781586] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 21:59:30,761 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 21:59:30,762 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15
[2024-11-02 21:59:30,762 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076154347]
[2024-11-02 21:59:30,762 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 21:59:30,762 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-02 21:59:30,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:59:30,763 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-02 21:59:30,763 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210
[2024-11-02 21:59:30,764 INFO  L87              Difference]: Start difference. First operand 606 states and 954 transitions. Second operand  has 15 states, 14 states have (on average 9.714285714285714) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (100), 4 states have call predecessors, (100), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100)
[2024-11-02 21:59:36,418 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:59:48,944 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 21:59:49,591 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:59:49,592 INFO  L93              Difference]: Finished difference Result 1579 states and 2473 transitions.
[2024-11-02 21:59:49,592 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2024-11-02 21:59:49,592 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 14 states have (on average 9.714285714285714) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (100), 4 states have call predecessors, (100), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) Word has length 322
[2024-11-02 21:59:49,593 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:59:49,599 INFO  L225             Difference]: With dead ends: 1579
[2024-11-02 21:59:49,599 INFO  L226             Difference]: Without dead ends: 976
[2024-11-02 21:59:49,601 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 629 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=187, Invalid=275, Unknown=0, NotChecked=0, Total=462
[2024-11-02 21:59:49,602 INFO  L432           NwaCegarLoop]: 166 mSDtfsCounter, 697 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time
[2024-11-02 21:59:49,602 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1124 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time]
[2024-11-02 21:59:49,603 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 976 states.
[2024-11-02 21:59:49,646 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 614.
[2024-11-02 21:59:49,647 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 614 states, 381 states have (on average 1.3385826771653544) internal successors, (510), 383 states have internal predecessors, (510), 224 states have call successors, (224), 8 states have call predecessors, (224), 8 states have return successors, (224), 222 states have call predecessors, (224), 224 states have call successors, (224)
[2024-11-02 21:59:49,649 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 958 transitions.
[2024-11-02 21:59:49,650 INFO  L78                 Accepts]: Start accepts. Automaton has 614 states and 958 transitions. Word has length 322
[2024-11-02 21:59:49,650 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:59:49,650 INFO  L471      AbstractCegarLoop]: Abstraction has 614 states and 958 transitions.
[2024-11-02 21:59:49,650 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 14 states have (on average 9.714285714285714) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (100), 4 states have call predecessors, (100), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100)
[2024-11-02 21:59:49,650 INFO  L276                IsEmpty]: Start isEmpty. Operand 614 states and 958 transitions.
[2024-11-02 21:59:49,652 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 323
[2024-11-02 21:59:49,652 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:59:49,652 INFO  L215           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:59:49,683 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-02 21:59:49,852 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:59:49,853 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:59:49,853 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:59:49,853 INFO  L85        PathProgramCache]: Analyzing trace with hash -1786971204, now seen corresponding path program 1 times
[2024-11-02 21:59:49,853 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:59:49,854 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80239988]
[2024-11-02 21:59:49,854 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:59:49,854 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:59:49,854 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:59:49,855 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:59:49,856 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-02 21:59:50,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:59:50,139 INFO  L255         TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-02 21:59:50,144 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:59:54,187 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 2473 proven. 162 refuted. 0 times theorem prover too weak. 2265 trivial. 0 not checked.
[2024-11-02 21:59:54,187 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:59:58,616 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 63 proven. 84 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked.
[2024-11-02 21:59:58,616 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:59:58,616 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80239988]
[2024-11-02 21:59:58,616 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [80239988] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 21:59:58,616 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 21:59:58,617 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17
[2024-11-02 21:59:58,617 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798231402]
[2024-11-02 21:59:58,617 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 21:59:58,617 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-02 21:59:58,618 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:59:58,618 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-02 21:59:58,618 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272
[2024-11-02 21:59:58,619 INFO  L87              Difference]: Start difference. First operand 614 states and 958 transitions. Second operand  has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 16 states have internal predecessors, (141), 5 states have call successors, (100), 4 states have call predecessors, (100), 6 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100)
[2024-11-02 22:00:09,436 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:00:11,613 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 22:00:24,900 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 22:00:26,308 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:00:26,308 INFO  L93              Difference]: Finished difference Result 2971 states and 4562 transitions.
[2024-11-02 22:00:26,312 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2024-11-02 22:00:26,312 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 16 states have internal predecessors, (141), 5 states have call successors, (100), 4 states have call predecessors, (100), 6 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) Word has length 322
[2024-11-02 22:00:26,313 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:00:26,323 INFO  L225             Difference]: With dead ends: 2971
[2024-11-02 22:00:26,323 INFO  L226             Difference]: Without dead ends: 2360
[2024-11-02 22:00:26,325 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 628 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=281, Invalid=649, Unknown=0, NotChecked=0, Total=930
[2024-11-02 22:00:26,325 INFO  L432           NwaCegarLoop]: 197 mSDtfsCounter, 1356 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 389 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time
[2024-11-02 22:00:26,326 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 1482 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 1518 Invalid, 1 Unknown, 0 Unchecked, 25.9s Time]
[2024-11-02 22:00:26,327 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2360 states.
[2024-11-02 22:00:26,527 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 1562.
[2024-11-02 22:00:26,531 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1562 states, 994 states have (on average 1.335010060362173) internal successors, (1327), 1002 states have internal predecessors, (1327), 532 states have call successors, (532), 35 states have call predecessors, (532), 35 states have return successors, (532), 524 states have call predecessors, (532), 532 states have call successors, (532)
[2024-11-02 22:00:26,539 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2391 transitions.
[2024-11-02 22:00:26,542 INFO  L78                 Accepts]: Start accepts. Automaton has 1562 states and 2391 transitions. Word has length 322
[2024-11-02 22:00:26,543 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:00:26,543 INFO  L471      AbstractCegarLoop]: Abstraction has 1562 states and 2391 transitions.
[2024-11-02 22:00:26,543 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 16 states have internal predecessors, (141), 5 states have call successors, (100), 4 states have call predecessors, (100), 6 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100)
[2024-11-02 22:00:26,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 1562 states and 2391 transitions.
[2024-11-02 22:00:26,591 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 324
[2024-11-02 22:00:26,591 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:00:26,591 INFO  L215           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:00:26,635 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-02 22:00:26,792 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:00:26,792 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:00:26,793 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:00:26,793 INFO  L85        PathProgramCache]: Analyzing trace with hash 885280819, now seen corresponding path program 1 times
[2024-11-02 22:00:26,793 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:00:26,793 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386823532]
[2024-11-02 22:00:26,794 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:00:26,794 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:00:26,794 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:00:26,796 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:00:26,798 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-02 22:00:27,071 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:00:27,113 INFO  L255         TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 22:00:27,118 INFO  L278         TraceCheckSpWp]: Computing forward predicates...