/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-30.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:51:31,319 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:51:31,376 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 21:51:31,379 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:51:31,379 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:51:31,401 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:51:31,402 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:51:31,402 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:51:31,402 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:51:31,403 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:51:31,403 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:51:31,404 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:51:31,404 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:51:31,405 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:51:31,405 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:51:31,406 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:51:31,406 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:51:31,406 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:51:31,406 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:51:31,407 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:51:31,407 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:51:31,410 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:51:31,410 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:51:31,410 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:51:31,410 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:51:31,410 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:51:31,410 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:51:31,411 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:51:31,411 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:51:31,411 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:51:31,411 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:51:31,411 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:51:31,411 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:51:31,412 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:51:31,412 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:51:31,412 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:51:31,412 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:51:31,412 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:51:31,412 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:51:31,413 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:51:31,413 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:51:31,413 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:51:31,413 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:51:31,414 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:51:31,414 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:51:31,602 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:51:31,619 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:51:31,621 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:51:31,621 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:51:31,621 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:51:31,622 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-30.i
[2024-11-02 21:51:32,842 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:51:33,052 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:51:33,053 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-30.i
[2024-11-02 21:51:33,062 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70660d6db/e3f36a081a7440859ddea103202075d8/FLAG28f7ce7ee
[2024-11-02 21:51:33,077 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70660d6db/e3f36a081a7440859ddea103202075d8
[2024-11-02 21:51:33,079 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:51:33,080 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:51:33,081 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:51:33,081 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:51:33,086 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:51:33,086 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,087 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4f6d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33, skipping insertion in model container
[2024-11-02 21:51:33,087 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,119 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:51:33,248 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-30.i[916,929]
[2024-11-02 21:51:33,351 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:51:33,364 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:51:33,375 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-30.i[916,929]
[2024-11-02 21:51:33,433 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:51:33,449 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:51:33,450 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33 WrapperNode
[2024-11-02 21:51:33,451 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:51:33,452 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:51:33,453 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:51:33,453 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:51:33,457 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,471 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,497 INFO  L138                Inliner]: procedures = 27, calls = 65, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 342
[2024-11-02 21:51:33,497 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:51:33,498 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:51:33,498 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:51:33,498 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:51:33,505 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,506 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,516 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,531 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 21:51:33,531 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,531 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,554 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,562 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,568 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,575 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,580 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:51:33,581 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:51:33,581 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:51:33,581 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:51:33,582 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (1/1) ...
[2024-11-02 21:51:33,585 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:51:33,596 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:51:33,609 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 21:51:33,611 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 21:51:33,632 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:51:33,632 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:51:33,632 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:51:33,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:51:33,633 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:51:33,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:51:33,722 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:51:33,724 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:51:40,505 INFO  L?                        ?]: Removed 36 outVars from TransFormulas that were not future-live.
[2024-11-02 21:51:40,505 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:51:40,521 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:51:40,522 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:51:40,522 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:51:40 BoogieIcfgContainer
[2024-11-02 21:51:40,522 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:51:40,524 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:51:40,524 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:51:40,529 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:51:40,530 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:51:33" (1/3) ...
[2024-11-02 21:51:40,530 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e87295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:51:40, skipping insertion in model container
[2024-11-02 21:51:40,530 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:51:33" (2/3) ...
[2024-11-02 21:51:40,530 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e87295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:51:40, skipping insertion in model container
[2024-11-02 21:51:40,530 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:51:40" (3/3) ...
[2024-11-02 21:51:40,531 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-30.i
[2024-11-02 21:51:40,564 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:51:40,565 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:51:40,639 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:51:40,644 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;@225d7d5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:51:40,644 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:51:40,650 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 147 states, 92 states have (on average 1.4673913043478262) internal successors, (135), 93 states have internal predecessors, (135), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2024-11-02 21:51:40,664 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 329
[2024-11-02 21:51:40,664 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:51:40,664 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:51:40,665 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:51:40,668 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:51:40,668 INFO  L85        PathProgramCache]: Analyzing trace with hash 1154907571, now seen corresponding path program 1 times
[2024-11-02 21:51:40,673 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:51:40,674 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573398023]
[2024-11-02 21:51:40,674 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:51:40,675 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:51:40,675 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:51:40,677 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 21:51:40,677 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 21:51:41,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:51:41,196 INFO  L255         TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:51:41,211 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:51:41,257 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked.
[2024-11-02 21:51:41,258 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:51:42,901 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked.
[2024-11-02 21:51:42,902 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:51:42,902 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573398023]
[2024-11-02 21:51:42,902 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [573398023] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:51:42,902 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:51:42,903 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:51:42,904 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085585859]
[2024-11-02 21:51:42,904 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:51:42,908 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:51:42,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:51:42,923 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:51:42,924 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:51:42,926 INFO  L87              Difference]: Start difference. First operand  has 147 states, 92 states have (on average 1.4673913043478262) internal successors, (135), 93 states have internal predecessors, (135), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52)
[2024-11-02 21:51:42,964 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:51:42,964 INFO  L93              Difference]: Finished difference Result 287 states and 524 transitions.
[2024-11-02 21:51:42,965 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:51:42,966 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) Word has length 328
[2024-11-02 21:51:42,966 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:51:42,973 INFO  L225             Difference]: With dead ends: 287
[2024-11-02 21:51:42,973 INFO  L226             Difference]: Without dead ends: 143
[2024-11-02 21:51:42,976 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 654 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 21:51:42,978 INFO  L432           NwaCegarLoop]: 231 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, 231 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 21:51:42,978 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:51:42,989 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 143 states.
[2024-11-02 21:51:43,018 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143.
[2024-11-02 21:51:43,019 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 143 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 89 states have internal predecessors, (127), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2024-11-02 21:51:43,021 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 231 transitions.
[2024-11-02 21:51:43,023 INFO  L78                 Accepts]: Start accepts. Automaton has 143 states and 231 transitions. Word has length 328
[2024-11-02 21:51:43,023 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:51:43,023 INFO  L471      AbstractCegarLoop]: Abstraction has 143 states and 231 transitions.
[2024-11-02 21:51:43,023 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52)
[2024-11-02 21:51:43,023 INFO  L276                IsEmpty]: Start isEmpty. Operand 143 states and 231 transitions.
[2024-11-02 21:51:43,028 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 331
[2024-11-02 21:51:43,028 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:51:43,028 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:51:43,074 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 21:51:43,229 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 21:51:43,229 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:51:43,230 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:51:43,230 INFO  L85        PathProgramCache]: Analyzing trace with hash 1728280095, now seen corresponding path program 1 times
[2024-11-02 21:51:43,230 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:51:43,230 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153430580]
[2024-11-02 21:51:43,230 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:51:43,230 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:51:43,231 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:51:43,232 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 21:51:43,232 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 21:51:43,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:51:43,686 INFO  L255         TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:51:43,693 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:51:44,068 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-02 21:51:44,069 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:51:45,831 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-02 21:51:45,832 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:51:45,832 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153430580]
[2024-11-02 21:51:45,832 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [153430580] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:51:45,832 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:51:45,832 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 21:51:45,833 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421351935]
[2024-11-02 21:51:45,833 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:51:45,834 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 21:51:45,834 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:51:45,835 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 21:51:45,835 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:51:45,836 INFO  L87              Difference]: Start difference. First operand 143 states and 231 transitions. Second operand  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-02 21:51:50,148 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 []
[2024-11-02 21:51:54,162 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 []
[2024-11-02 21:51:54,170 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:51:54,171 INFO  L93              Difference]: Finished difference Result 394 states and 638 transitions.
[2024-11-02 21:51:54,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:51:54,246 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 330
[2024-11-02 21:51:54,248 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:51:54,250 INFO  L225             Difference]: With dead ends: 394
[2024-11-02 21:51:54,250 INFO  L226             Difference]: Without dead ends: 254
[2024-11-02 21:51:54,252 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 657 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 21:51:54,254 INFO  L432           NwaCegarLoop]: 228 mSDtfsCounter, 159 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time
[2024-11-02 21:51:54,255 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 446 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time]
[2024-11-02 21:51:54,255 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 254 states.
[2024-11-02 21:51:54,285 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 251.
[2024-11-02 21:51:54,286 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 251 states, 154 states have (on average 1.422077922077922) internal successors, (219), 155 states have internal predecessors, (219), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94)
[2024-11-02 21:51:54,290 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 407 transitions.
[2024-11-02 21:51:54,291 INFO  L78                 Accepts]: Start accepts. Automaton has 251 states and 407 transitions. Word has length 330
[2024-11-02 21:51:54,291 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:51:54,291 INFO  L471      AbstractCegarLoop]: Abstraction has 251 states and 407 transitions.
[2024-11-02 21:51:54,292 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-02 21:51:54,292 INFO  L276                IsEmpty]: Start isEmpty. Operand 251 states and 407 transitions.
[2024-11-02 21:51:54,298 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 331
[2024-11-02 21:51:54,298 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:51:54,298 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:51:54,353 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 21:51:54,499 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 21:51:54,500 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:51:54,500 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:51:54,500 INFO  L85        PathProgramCache]: Analyzing trace with hash 1335253085, now seen corresponding path program 1 times
[2024-11-02 21:51:54,500 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:51:54,500 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983165422]
[2024-11-02 21:51:54,501 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:51:54,501 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:51:54,501 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:51:54,502 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 21:51:54,503 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 21:51:54,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:51:54,968 INFO  L255         TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:51:54,974 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:51:55,393 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-02 21:51:55,394 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:51:57,588 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-02 21:51:57,589 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:51:57,592 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983165422]
[2024-11-02 21:51:57,592 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [983165422] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:51:57,592 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:51:57,592 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 21:51:57,592 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875473372]
[2024-11-02 21:51:57,592 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:51:57,593 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 21:51:57,593 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:51:57,594 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 21:51:57,595 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:51:57,595 INFO  L87              Difference]: Start difference. First operand 251 states and 407 transitions. Second operand  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-02 21:52:01,888 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 []
[2024-11-02 21:52:05,894 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 []
[2024-11-02 21:52:05,904 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:52:05,904 INFO  L93              Difference]: Finished difference Result 641 states and 1039 transitions.
[2024-11-02 21:52:05,977 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:52:05,978 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 330
[2024-11-02 21:52:05,979 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:52:05,983 INFO  L225             Difference]: With dead ends: 641
[2024-11-02 21:52:05,983 INFO  L226             Difference]: Without dead ends: 393
[2024-11-02 21:52:05,984 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 657 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 21:52:05,984 INFO  L432           NwaCegarLoop]: 244 mSDtfsCounter, 99 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time
[2024-11-02 21:52:05,985 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 461 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time]
[2024-11-02 21:52:05,985 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 393 states.
[2024-11-02 21:52:06,016 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 389.
[2024-11-02 21:52:06,017 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 389 states, 250 states have (on average 1.448) internal successors, (362), 253 states have internal predecessors, (362), 134 states have call successors, (134), 4 states have call predecessors, (134), 4 states have return successors, (134), 131 states have call predecessors, (134), 134 states have call successors, (134)
[2024-11-02 21:52:06,019 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 630 transitions.
[2024-11-02 21:52:06,020 INFO  L78                 Accepts]: Start accepts. Automaton has 389 states and 630 transitions. Word has length 330
[2024-11-02 21:52:06,020 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:52:06,020 INFO  L471      AbstractCegarLoop]: Abstraction has 389 states and 630 transitions.
[2024-11-02 21:52:06,021 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-02 21:52:06,021 INFO  L276                IsEmpty]: Start isEmpty. Operand 389 states and 630 transitions.
[2024-11-02 21:52:06,022 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 331
[2024-11-02 21:52:06,022 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:52:06,022 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:52:06,072 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 21:52:06,223 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 21:52:06,223 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:52:06,224 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:52:06,224 INFO  L85        PathProgramCache]: Analyzing trace with hash -1036486177, now seen corresponding path program 1 times
[2024-11-02 21:52:06,224 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:52:06,224 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166977487]
[2024-11-02 21:52:06,224 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:52:06,224 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:52:06,225 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:52:06,228 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 21:52:06,229 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 21:52:06,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:52:06,697 INFO  L255         TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 21:52:06,703 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:52:10,918 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 2241 proven. 108 refuted. 0 times theorem prover too weak. 2955 trivial. 0 not checked.
[2024-11-02 21:52:10,918 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:52:14,519 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 45 proven. 108 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked.
[2024-11-02 21:52:14,519 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:52:14,520 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166977487]
[2024-11-02 21:52:14,520 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1166977487] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 21:52:14,520 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 21:52:14,520 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-02 21:52:14,520 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630617379]
[2024-11-02 21:52:14,520 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 21:52:14,521 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-02 21:52:14,521 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:52:14,522 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-02 21:52:14,522 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-02 21:52:14,522 INFO  L87              Difference]: Start difference. First operand 389 states and 630 transitions. Second operand  has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89)
[2024-11-02 21:52:21,737 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 []
[2024-11-02 21:52:25,743 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:52:28,056 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:52:28,064 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:52:28,064 INFO  L93              Difference]: Finished difference Result 803 states and 1277 transitions.
[2024-11-02 21:52:28,140 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-02 21:52:28,141 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 330
[2024-11-02 21:52:28,141 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:52:28,144 INFO  L225             Difference]: With dead ends: 803
[2024-11-02 21:52:28,144 INFO  L226             Difference]: Without dead ends: 417
[2024-11-02 21:52:28,145 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2024-11-02 21:52:28,146 INFO  L432           NwaCegarLoop]: 172 mSDtfsCounter, 178 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 41 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time
[2024-11-02 21:52:28,146 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 409 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 272 Invalid, 2 Unknown, 0 Unchecked, 13.2s Time]
[2024-11-02 21:52:28,147 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 417 states.
[2024-11-02 21:52:28,174 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 401.
[2024-11-02 21:52:28,175 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 401 states, 258 states have (on average 1.4031007751937985) internal successors, (362), 261 states have internal predecessors, (362), 134 states have call successors, (134), 8 states have call predecessors, (134), 8 states have return successors, (134), 131 states have call predecessors, (134), 134 states have call successors, (134)
[2024-11-02 21:52:28,177 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 630 transitions.
[2024-11-02 21:52:28,177 INFO  L78                 Accepts]: Start accepts. Automaton has 401 states and 630 transitions. Word has length 330
[2024-11-02 21:52:28,178 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:52:28,178 INFO  L471      AbstractCegarLoop]: Abstraction has 401 states and 630 transitions.
[2024-11-02 21:52:28,178 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89)
[2024-11-02 21:52:28,179 INFO  L276                IsEmpty]: Start isEmpty. Operand 401 states and 630 transitions.
[2024-11-02 21:52:28,180 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 331
[2024-11-02 21:52:28,180 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:52:28,180 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:52:28,229 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 21:52:28,380 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 21:52:28,381 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:52:28,381 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:52:28,382 INFO  L85        PathProgramCache]: Analyzing trace with hash 861046173, now seen corresponding path program 1 times
[2024-11-02 21:52:28,382 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:52:28,382 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275696874]
[2024-11-02 21:52:28,382 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:52:28,382 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:52:28,382 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:52:28,383 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 21:52:28,384 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 21:52:28,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:52:28,818 INFO  L255         TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 21:52:28,823 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:52:34,243 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-02 21:52:34,244 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:52:38,224 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-02 21:52:38,224 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:52:38,224 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275696874]
[2024-11-02 21:52:38,225 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1275696874] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:52:38,225 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:52:38,225 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-02 21:52:38,225 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618986845]
[2024-11-02 21:52:38,225 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:52:38,226 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 21:52:38,226 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:52:38,227 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 21:52:38,227 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-02 21:52:38,227 INFO  L87              Difference]: Start difference. First operand 401 states and 630 transitions. Second operand  has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104)
[2024-11-02 21:52:44,933 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:52:48,937 WARN  L539   Checker$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 []
[2024-11-02 21:52:52,942 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 21:52:56,948 WARN  L539   Checker$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 []
[2024-11-02 21:53:01,332 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:53:05,335 WARN  L539   Checker$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 [1]
[2024-11-02 21:53:09,342 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:53:13,350 WARN  L539   Checker$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 [1]
[2024-11-02 21:53:13,351 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:53:13,351 INFO  L93              Difference]: Finished difference Result 1359 states and 2147 transitions.
[2024-11-02 21:53:13,426 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 21:53:13,427 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 330
[2024-11-02 21:53:13,428 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:53:13,432 INFO  L225             Difference]: With dead ends: 1359
[2024-11-02 21:53:13,432 INFO  L226             Difference]: Without dead ends: 961
[2024-11-02 21:53:13,434 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-02 21:53:13,434 INFO  L432           NwaCegarLoop]: 306 mSDtfsCounter, 208 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 105 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time
[2024-11-02 21:53:13,435 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 1186 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 21 Invalid, 8 Unknown, 0 Unchecked, 35.0s Time]
[2024-11-02 21:53:13,436 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 961 states.
[2024-11-02 21:53:13,496 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 797.
[2024-11-02 21:53:13,498 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 797 states, 512 states have (on average 1.404296875) internal successors, (719), 518 states have internal predecessors, (719), 268 states have call successors, (268), 16 states have call predecessors, (268), 16 states have return successors, (268), 262 states have call predecessors, (268), 268 states have call successors, (268)
[2024-11-02 21:53:13,501 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1255 transitions.
[2024-11-02 21:53:13,501 INFO  L78                 Accepts]: Start accepts. Automaton has 797 states and 1255 transitions. Word has length 330
[2024-11-02 21:53:13,502 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:53:13,502 INFO  L471      AbstractCegarLoop]: Abstraction has 797 states and 1255 transitions.
[2024-11-02 21:53:13,502 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104)
[2024-11-02 21:53:13,502 INFO  L276                IsEmpty]: Start isEmpty. Operand 797 states and 1255 transitions.
[2024-11-02 21:53:13,504 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 331
[2024-11-02 21:53:13,504 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:53:13,504 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:53:13,555 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-02 21:53:13,704 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 21:53:13,705 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:53:13,705 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:53:13,706 INFO  L85        PathProgramCache]: Analyzing trace with hash 1520577695, now seen corresponding path program 1 times
[2024-11-02 21:53:13,706 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:53:13,706 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296111577]
[2024-11-02 21:53:13,706 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:53:13,706 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:53:13,706 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:53:13,707 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 21:53:13,708 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 21:53:14,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:53:14,150 INFO  L255         TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 21:53:14,156 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:53:17,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 2571 proven. 93 refuted. 0 times theorem prover too weak. 2640 trivial. 0 not checked.
[2024-11-02 21:53:17,765 INFO  L311         TraceCheckSpWp]: Computing backward predicates...