/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-98.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 06:30:23,336 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 06:30:23,411 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-19 06:30:23,415 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 06:30:23,415 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 06:30:23,439 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 06:30:23,439 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 06:30:23,440 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 06:30:23,440 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 06:30:23,443 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 06:30:23,443 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 06:30:23,444 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 06:30:23,444 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 06:30:23,445 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 06:30:23,445 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 06:30:23,445 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 06:30:23,445 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 06:30:23,446 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 06:30:23,447 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 06:30:23,447 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 06:30:23,447 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 06:30:23,447 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 06:30:23,447 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 06:30:23,447 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 06:30:23,448 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 06:30:23,448 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 06:30:23,448 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 06:30:23,448 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 06:30:23,448 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 06:30:23,449 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 06:30:23,449 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 06:30:23,449 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 06:30:23,450 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 06:30:23,450 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 06:30:23,450 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 06:30:23,450 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 06:30:23,450 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 06:30:23,450 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 06:30:23,450 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 06:30:23,450 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 06:30:23,450 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 06:30:23,451 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 06:30:23,451 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 06:30:23,451 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 06:30:23,642 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 06:30:23,662 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 06:30:23,664 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 06:30:23,665 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 06:30:23,665 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 06:30:23,666 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-98.i
[2023-12-19 06:30:24,738 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 06:30:24,965 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 06:30:24,965 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-98.i
[2023-12-19 06:30:24,976 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ea826000/889831c71a7149cdad1c5e48773e80ed/FLAG68008c0be
[2023-12-19 06:30:24,988 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ea826000/889831c71a7149cdad1c5e48773e80ed
[2023-12-19 06:30:24,990 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 06:30:24,991 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 06:30:24,992 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 06:30:24,992 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 06:30:24,996 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 06:30:24,996 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:30:24" (1/1) ...
[2023-12-19 06:30:24,997 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68badcba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:24, skipping insertion in model container
[2023-12-19 06:30:24,997 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:30:24" (1/1) ...
[2023-12-19 06:30:25,047 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 06:30:25,166 WARN  L239   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_fillercode_fillercodesize_ps-cn-100_file-98.i[916,929]
[2023-12-19 06:30:25,263 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 06:30:25,282 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 06:30:25,292 WARN  L239   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_fillercode_fillercodesize_ps-cn-100_file-98.i[916,929]
[2023-12-19 06:30:25,350 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 06:30:25,364 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 06:30:25,365 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25 WrapperNode
[2023-12-19 06:30:25,365 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 06:30:25,366 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 06:30:25,367 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 06:30:25,367 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 06:30:25,371 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,394 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,432 INFO  L138                Inliner]: procedures = 26, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 326
[2023-12-19 06:30:25,432 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 06:30:25,433 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 06:30:25,433 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 06:30:25,433 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 06:30:25,441 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,442 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,446 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,464 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].
[2023-12-19 06:30:25,465 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,465 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,474 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,477 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,479 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,481 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,485 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 06:30:25,486 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 06:30:25,486 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 06:30:25,486 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 06:30:25,487 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (1/1) ...
[2023-12-19 06:30:25,513 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 06:30:25,528 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:30:25,578 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)
[2023-12-19 06:30:25,592 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
[2023-12-19 06:30:25,611 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 06:30:25,611 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 06:30:25,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 06:30:25,611 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 06:30:25,611 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 06:30:25,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 06:30:25,706 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 06:30:25,709 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 06:30:26,120 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 06:30:26,167 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 06:30:26,167 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 06:30:26,167 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:30:26 BoogieIcfgContainer
[2023-12-19 06:30:26,167 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 06:30:26,169 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 06:30:26,169 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 06:30:26,171 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 06:30:26,171 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 06:30:24" (1/3) ...
[2023-12-19 06:30:26,171 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673ba140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 06:30:26, skipping insertion in model container
[2023-12-19 06:30:26,172 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:25" (2/3) ...
[2023-12-19 06:30:26,172 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673ba140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 06:30:26, skipping insertion in model container
[2023-12-19 06:30:26,172 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:30:26" (3/3) ...
[2023-12-19 06:30:26,172 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-98.i
[2023-12-19 06:30:26,183 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 06:30:26,183 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 06:30:26,222 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 06:30:26,228 INFO  L357      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, mHoare=true, 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;@45f32016, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 06:30:26,228 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 06:30:26,233 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 134 states, 78 states have (on average 1.5128205128205128) internal successors, (118), 79 states have internal predecessors, (118), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53)
[2023-12-19 06:30:26,257 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 325
[2023-12-19 06:30:26,257 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:30:26,258 INFO  L195           NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 06:30:26,259 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:30:26,265 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:30:26,265 INFO  L85        PathProgramCache]: Analyzing trace with hash 868305801, now seen corresponding path program 1 times
[2023-12-19 06:30:26,271 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:30:26,272 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578768149]
[2023-12-19 06:30:26,272 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:26,273 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:30:26,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:30:26,511 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:30:26,511 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578768149]
[2023-12-19 06:30:26,511 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-19 06:30:26,511 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185740923]
[2023-12-19 06:30:26,512 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:26,515 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:30:26,515 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:30:26,517 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)
[2023-12-19 06:30:26,544 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-19 06:30:26,707 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:30:26,712 INFO  L262         TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-19 06:30:26,732 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:30:26,775 INFO  L134       CoverageAnalysis]: Checked inductivity of 5512 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 5408 trivial. 0 not checked.
[2023-12-19 06:30:26,775 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 06:30:26,776 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [185740923] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 06:30:26,776 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 06:30:26,776 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 06:30:26,778 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127529274]
[2023-12-19 06:30:26,778 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:30:26,781 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-19 06:30:26,781 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:30:26,806 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-19 06:30:26,806 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 06:30:26,808 INFO  L87              Difference]: Start difference. First operand  has 134 states, 78 states have (on average 1.5128205128205128) internal successors, (118), 79 states have internal predecessors, (118), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand  has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 2 states have call successors, (53)
[2023-12-19 06:30:26,866 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:30:26,866 INFO  L93              Difference]: Finished difference Result 265 states and 499 transitions.
[2023-12-19 06:30:26,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-19 06:30:26,868 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 2 states have call successors, (53) Word has length 324
[2023-12-19 06:30:26,869 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:30:26,876 INFO  L225             Difference]: With dead ends: 265
[2023-12-19 06:30:26,876 INFO  L226             Difference]: Without dead ends: 132
[2023-12-19 06:30:26,883 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 06:30:26,885 INFO  L413           NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 06:30:26,886 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 06:30:26,898 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 132 states.
[2023-12-19 06:30:26,937 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132.
[2023-12-19 06:30:26,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 132 states, 77 states have (on average 1.4675324675324675) internal successors, (113), 77 states have internal predecessors, (113), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53)
[2023-12-19 06:30:26,941 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 219 transitions.
[2023-12-19 06:30:26,942 INFO  L78                 Accepts]: Start accepts. Automaton has 132 states and 219 transitions. Word has length 324
[2023-12-19 06:30:26,943 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:30:26,943 INFO  L495      AbstractCegarLoop]: Abstraction has 132 states and 219 transitions.
[2023-12-19 06:30:26,944 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 2 states have call successors, (53)
[2023-12-19 06:30:26,944 INFO  L276                IsEmpty]: Start isEmpty. Operand 132 states and 219 transitions.
[2023-12-19 06:30:26,950 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 325
[2023-12-19 06:30:26,951 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:30:26,952 INFO  L195           NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 06:30:26,969 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-19 06:30:27,159 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-19 06:30:27,159 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:30:27,160 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:30:27,160 INFO  L85        PathProgramCache]: Analyzing trace with hash -1366673209, now seen corresponding path program 1 times
[2023-12-19 06:30:27,160 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:30:27,160 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930106331]
[2023-12-19 06:30:27,160 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:27,161 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:30:27,246 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:30:27,246 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980919843]
[2023-12-19 06:30:27,247 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:27,247 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:30:27,247 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:30:27,248 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)
[2023-12-19 06:30:27,277 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-19 06:30:27,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:30:27,435 INFO  L262         TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-19 06:30:27,441 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:30:27,485 INFO  L134       CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked.
[2023-12-19 06:30:27,486 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 06:30:27,486 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:30:27,486 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930106331]
[2023-12-19 06:30:27,486 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:30:27,486 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980919843]
[2023-12-19 06:30:27,486 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980919843] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 06:30:27,486 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 06:30:27,486 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 06:30:27,487 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806837401]
[2023-12-19 06:30:27,487 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:30:27,489 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 06:30:27,489 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:30:27,490 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 06:30:27,490 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 06:30:27,490 INFO  L87              Difference]: Start difference. First operand 132 states and 219 transitions. Second operand  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53)
[2023-12-19 06:30:27,536 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:30:27,537 INFO  L93              Difference]: Finished difference Result 264 states and 439 transitions.
[2023-12-19 06:30:27,537 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 06:30:27,538 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 324
[2023-12-19 06:30:27,541 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:30:27,544 INFO  L225             Difference]: With dead ends: 264
[2023-12-19 06:30:27,544 INFO  L226             Difference]: Without dead ends: 133
[2023-12-19 06:30:27,545 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 06:30:27,547 INFO  L413           NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 06:30:27,547 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 424 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 06:30:27,549 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 133 states.
[2023-12-19 06:30:27,564 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133.
[2023-12-19 06:30:27,566 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 133 states, 78 states have (on average 1.4615384615384615) internal successors, (114), 78 states have internal predecessors, (114), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53)
[2023-12-19 06:30:27,567 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 220 transitions.
[2023-12-19 06:30:27,568 INFO  L78                 Accepts]: Start accepts. Automaton has 133 states and 220 transitions. Word has length 324
[2023-12-19 06:30:27,571 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:30:27,571 INFO  L495      AbstractCegarLoop]: Abstraction has 133 states and 220 transitions.
[2023-12-19 06:30:27,571 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53)
[2023-12-19 06:30:27,571 INFO  L276                IsEmpty]: Start isEmpty. Operand 133 states and 220 transitions.
[2023-12-19 06:30:27,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2023-12-19 06:30:27,575 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:30:27,575 INFO  L195           NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 06:30:27,598 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-12-19 06:30:27,782 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-19 06:30:27,782 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:30:27,783 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:30:27,783 INFO  L85        PathProgramCache]: Analyzing trace with hash -172520805, now seen corresponding path program 1 times
[2023-12-19 06:30:27,784 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:30:27,784 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790453164]
[2023-12-19 06:30:27,784 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:27,784 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:30:27,826 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:30:27,827 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480079089]
[2023-12-19 06:30:27,827 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:27,827 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:30:27,827 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:30:27,828 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)
[2023-12-19 06:30:27,853 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-19 06:30:28,041 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:30:28,045 INFO  L262         TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-19 06:30:28,049 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:30:28,793 INFO  L134       CoverageAnalysis]: Checked inductivity of 5512 backedges. 1762 proven. 126 refuted. 0 times theorem prover too weak. 3624 trivial. 0 not checked.
[2023-12-19 06:30:28,793 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-19 06:30:29,015 INFO  L134       CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked.
[2023-12-19 06:30:29,015 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:30:29,015 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790453164]
[2023-12-19 06:30:29,016 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:30:29,016 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480079089]
[2023-12-19 06:30:29,016 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [480079089] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-19 06:30:29,016 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-19 06:30:29,016 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13
[2023-12-19 06:30:29,016 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082847025]
[2023-12-19 06:30:29,016 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:30:29,018 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-19 06:30:29,018 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:30:29,019 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-19 06:30:29,019 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2023-12-19 06:30:29,019 INFO  L87              Difference]: Start difference. First operand 133 states and 220 transitions. Second operand  has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53)
[2023-12-19 06:30:29,172 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:30:29,172 INFO  L93              Difference]: Finished difference Result 315 states and 514 transitions.
[2023-12-19 06:30:29,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-19 06:30:29,173 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 325
[2023-12-19 06:30:29,173 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:30:29,174 INFO  L225             Difference]: With dead ends: 315
[2023-12-19 06:30:29,174 INFO  L226             Difference]: Without dead ends: 183
[2023-12-19 06:30:29,175 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2023-12-19 06:30:29,177 INFO  L413           NwaCegarLoop]: 230 mSDtfsCounter, 113 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-19 06:30:29,180 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 418 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-19 06:30:29,181 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 183 states.
[2023-12-19 06:30:29,207 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 164.
[2023-12-19 06:30:29,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 164 states, 98 states have (on average 1.4285714285714286) internal successors, (140), 99 states have internal predecessors, (140), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63)
[2023-12-19 06:30:29,208 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 266 transitions.
[2023-12-19 06:30:29,209 INFO  L78                 Accepts]: Start accepts. Automaton has 164 states and 266 transitions. Word has length 325
[2023-12-19 06:30:29,210 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:30:29,210 INFO  L495      AbstractCegarLoop]: Abstraction has 164 states and 266 transitions.
[2023-12-19 06:30:29,210 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53)
[2023-12-19 06:30:29,210 INFO  L276                IsEmpty]: Start isEmpty. Operand 164 states and 266 transitions.
[2023-12-19 06:30:29,211 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2023-12-19 06:30:29,211 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:30:29,212 INFO  L195           NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 06:30:29,234 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-19 06:30:29,419 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:30:29,421 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:30:29,422 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:30:29,422 INFO  L85        PathProgramCache]: Analyzing trace with hash -981867431, now seen corresponding path program 1 times
[2023-12-19 06:30:29,422 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:30:29,423 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588109604]
[2023-12-19 06:30:29,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:29,424 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:30:29,457 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:30:29,458 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782319978]
[2023-12-19 06:30:29,458 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:29,458 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:30:29,458 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:30:29,459 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)
[2023-12-19 06:30:29,485 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-19 06:30:29,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:30:29,637 INFO  L262         TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-19 06:30:29,642 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:30:29,669 INFO  L134       CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked.
[2023-12-19 06:30:29,669 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 06:30:29,669 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:30:29,669 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588109604]
[2023-12-19 06:30:29,669 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:30:29,670 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782319978]
[2023-12-19 06:30:29,670 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [782319978] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 06:30:29,670 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 06:30:29,670 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 06:30:29,670 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050123006]
[2023-12-19 06:30:29,670 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:30:29,670 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 06:30:29,671 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:30:29,671 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 06:30:29,671 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 06:30:29,671 INFO  L87              Difference]: Start difference. First operand 164 states and 266 transitions. Second operand  has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53)
[2023-12-19 06:30:29,702 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:30:29,702 INFO  L93              Difference]: Finished difference Result 323 states and 525 transitions.
[2023-12-19 06:30:29,702 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 06:30:29,703 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 325
[2023-12-19 06:30:29,703 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:30:29,705 INFO  L225             Difference]: With dead ends: 323
[2023-12-19 06:30:29,705 INFO  L226             Difference]: Without dead ends: 160
[2023-12-19 06:30:29,706 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 06:30:29,706 INFO  L413           NwaCegarLoop]: 206 mSDtfsCounter, 19 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 06:30:29,706 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 393 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 06:30:29,707 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 160 states.
[2023-12-19 06:30:29,714 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160.
[2023-12-19 06:30:29,715 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 160 states, 94 states have (on average 1.4148936170212767) internal successors, (133), 95 states have internal predecessors, (133), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63)
[2023-12-19 06:30:29,716 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 259 transitions.
[2023-12-19 06:30:29,716 INFO  L78                 Accepts]: Start accepts. Automaton has 160 states and 259 transitions. Word has length 325
[2023-12-19 06:30:29,716 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:30:29,716 INFO  L495      AbstractCegarLoop]: Abstraction has 160 states and 259 transitions.
[2023-12-19 06:30:29,717 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53)
[2023-12-19 06:30:29,717 INFO  L276                IsEmpty]: Start isEmpty. Operand 160 states and 259 transitions.
[2023-12-19 06:30:29,718 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2023-12-19 06:30:29,718 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:30:29,718 INFO  L195           NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 06:30:29,727 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-19 06:30:29,924 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:30:29,925 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:30:29,925 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:30:29,925 INFO  L85        PathProgramCache]: Analyzing trace with hash 528543773, now seen corresponding path program 1 times
[2023-12-19 06:30:29,925 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:30:29,926 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423139380]
[2023-12-19 06:30:29,926 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:29,926 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:30:29,951 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:30:29,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069672763]
[2023-12-19 06:30:29,951 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:29,951 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:30:29,951 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:30:29,952 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)
[2023-12-19 06:30:29,980 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-19 06:30:30,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:30:30,124 INFO  L262         TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-12-19 06:30:30,129 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:30:30,361 INFO  L134       CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked.
[2023-12-19 06:30:30,362 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 06:30:30,362 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:30:30,362 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423139380]
[2023-12-19 06:30:30,362 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:30:30,362 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069672763]
[2023-12-19 06:30:30,362 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069672763] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 06:30:30,362 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 06:30:30,362 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-19 06:30:30,362 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888053403]
[2023-12-19 06:30:30,363 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:30:30,363 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-19 06:30:30,363 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:30:30,363 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-19 06:30:30,364 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2023-12-19 06:30:30,364 INFO  L87              Difference]: Start difference. First operand 160 states and 259 transitions. Second operand  has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53)
[2023-12-19 06:30:31,753 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:30:31,753 INFO  L93              Difference]: Finished difference Result 803 states and 1305 transitions.
[2023-12-19 06:30:31,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-19 06:30:31,754 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 325
[2023-12-19 06:30:31,754 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:30:31,757 INFO  L225             Difference]: With dead ends: 803
[2023-12-19 06:30:31,757 INFO  L226             Difference]: Without dead ends: 644
[2023-12-19 06:30:31,758 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240
[2023-12-19 06:30:31,759 INFO  L413           NwaCegarLoop]: 390 mSDtfsCounter, 763 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-12-19 06:30:31,759 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 1827 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-12-19 06:30:31,760 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 644 states.
[2023-12-19 06:30:31,833 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 627.
[2023-12-19 06:30:31,834 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 627 states, 366 states have (on average 1.4098360655737705) internal successors, (516), 370 states have internal predecessors, (516), 252 states have call successors, (252), 8 states have call predecessors, (252), 8 states have return successors, (252), 248 states have call predecessors, (252), 252 states have call successors, (252)
[2023-12-19 06:30:31,837 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 1020 transitions.
[2023-12-19 06:30:31,837 INFO  L78                 Accepts]: Start accepts. Automaton has 627 states and 1020 transitions. Word has length 325
[2023-12-19 06:30:31,837 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:30:31,837 INFO  L495      AbstractCegarLoop]: Abstraction has 627 states and 1020 transitions.
[2023-12-19 06:30:31,838 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53)
[2023-12-19 06:30:31,838 INFO  L276                IsEmpty]: Start isEmpty. Operand 627 states and 1020 transitions.
[2023-12-19 06:30:31,839 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2023-12-19 06:30:31,839 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:30:31,839 INFO  L195           NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 06:30:31,845 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-12-19 06:30:32,045 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:30:32,046 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:30:32,046 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:30:32,046 INFO  L85        PathProgramCache]: Analyzing trace with hash 585802075, now seen corresponding path program 1 times
[2023-12-19 06:30:32,047 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:30:32,047 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746847773]
[2023-12-19 06:30:32,047 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:32,047 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:30:32,075 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:30:32,076 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565601686]
[2023-12-19 06:30:32,076 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:30:32,076 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:30:32,076 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:30:32,094 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)
[2023-12-19 06:30:32,095 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-12-19 06:30:32,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:30:32,305 INFO  L262         TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 59 conjunts are in the unsatisfiable core
[2023-12-19 06:30:32,312 INFO  L285         TraceCheckSpWp]: Computing forward predicates...