/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-20 21:07:59,939 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-20 21:08:00,002 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-20 21:08:00,007 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-20 21:08:00,007 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-20 21:08:00,032 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-20 21:08:00,033 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-20 21:08:00,033 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-20 21:08:00,034 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-20 21:08:00,038 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-20 21:08:00,038 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-20 21:08:00,038 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-20 21:08:00,039 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-20 21:08:00,040 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-20 21:08:00,040 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-20 21:08:00,040 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-20 21:08:00,040 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-20 21:08:00,041 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-20 21:08:00,041 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-20 21:08:00,042 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-20 21:08:00,042 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-20 21:08:00,043 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-20 21:08:00,043 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-20 21:08:00,043 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-20 21:08:00,043 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-20 21:08:00,043 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-20 21:08:00,044 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-20 21:08:00,044 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-20 21:08:00,044 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-20 21:08:00,045 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-20 21:08:00,045 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-20 21:08:00,046 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-20 21:08:00,046 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 21:08:00,046 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-20 21:08:00,046 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-20 21:08:00,046 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-20 21:08:00,047 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-20 21:08:00,047 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-20 21:08:00,047 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-20 21:08:00,047 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-20 21:08:00,047 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-20 21:08:00,048 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-20 21:08:00,048 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-20 21:08:00,048 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-20 21:08:00,257 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-20 21:08:00,277 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-20 21:08:00,279 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-20 21:08:00,280 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-20 21:08:00,280 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-20 21:08:00,281 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i
[2023-12-20 21:08:01,395 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-20 21:08:01,548 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-20 21:08:01,548 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i
[2023-12-20 21:08:01,556 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad65ec33/7bc67cc5ae184f55b274dbe395da460c/FLAG5d2205583
[2023-12-20 21:08:01,565 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad65ec33/7bc67cc5ae184f55b274dbe395da460c
[2023-12-20 21:08:01,567 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-20 21:08:01,568 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-20 21:08:01,569 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-20 21:08:01,569 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-20 21:08:01,578 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-20 21:08:01,579 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,579 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e09176c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01, skipping insertion in model container
[2023-12-20 21:08:01,579 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,650 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-20 21:08:01,764 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_fillercodestructure_filler-pr-cn_file-45.i[919,932]
[2023-12-20 21:08:01,806 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 21:08:01,815 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-20 21:08:01,822 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_fillercodestructure_filler-pr-cn_file-45.i[919,932]
[2023-12-20 21:08:01,846 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 21:08:01,858 INFO  L206         MainTranslator]: Completed translation
[2023-12-20 21:08:01,858 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01 WrapperNode
[2023-12-20 21:08:01,858 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-20 21:08:01,859 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-20 21:08:01,859 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-20 21:08:01,859 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-20 21:08:01,863 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,878 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,916 INFO  L138                Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 239
[2023-12-20 21:08:01,928 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-20 21:08:01,929 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-20 21:08:01,929 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-20 21:08:01,929 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-20 21:08:01,937 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,937 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,939 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,949 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].
[2023-12-20 21:08:01,950 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,950 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,969 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,972 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,973 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,974 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,977 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-20 21:08:01,977 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-20 21:08:01,977 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-20 21:08:01,977 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-20 21:08:01,978 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (1/1) ...
[2023-12-20 21:08:01,994 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 21:08:02,003 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:08:02,014 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)
[2023-12-20 21:08:02,034 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
[2023-12-20 21:08:02,042 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-20 21:08:02,042 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-20 21:08:02,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-20 21:08:02,043 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-20 21:08:02,043 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-20 21:08:02,043 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-20 21:08:02,128 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-20 21:08:02,131 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-20 21:08:02,450 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-20 21:08:02,480 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-20 21:08:02,480 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-20 21:08:02,480 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 09:08:02 BoogieIcfgContainer
[2023-12-20 21:08:02,480 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-20 21:08:02,481 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-20 21:08:02,482 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-20 21:08:02,484 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-20 21:08:02,484 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 09:08:01" (1/3) ...
[2023-12-20 21:08:02,484 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302ad217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 09:08:02, skipping insertion in model container
[2023-12-20 21:08:02,484 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:08:01" (2/3) ...
[2023-12-20 21:08:02,485 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302ad217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 09:08:02, skipping insertion in model container
[2023-12-20 21:08:02,485 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 09:08:02" (3/3) ...
[2023-12-20 21:08:02,485 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i
[2023-12-20 21:08:02,496 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-20 21:08:02,497 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-20 21:08:02,532 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-20 21:08:02,537 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;@752fa4db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-20 21:08:02,537 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-20 21:08:02,539 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 100 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41)
[2023-12-20 21:08:02,550 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 251
[2023-12-20 21:08:02,550 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 21:08:02,550 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 21:08:02,551 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 21:08:02,554 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 21:08:02,554 INFO  L85        PathProgramCache]: Analyzing trace with hash 1193448130, now seen corresponding path program 1 times
[2023-12-20 21:08:02,560 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 21:08:02,560 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442911016]
[2023-12-20 21:08:02,560 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:08:02,560 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 21:08:02,689 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 21:08:02,689 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465860888]
[2023-12-20 21:08:02,690 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:08:02,690 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 21:08:02,690 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:08:02,692 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)
[2023-12-20 21:08:02,728 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-20 21:08:02,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 21:08:02,921 INFO  L262         TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-20 21:08:02,929 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 21:08:03,000 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked.
[2023-12-20 21:08:03,000 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 21:08:03,000 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 21:08:03,000 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442911016]
[2023-12-20 21:08:03,000 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 21:08:03,000 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465860888]
[2023-12-20 21:08:03,001 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465860888] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 21:08:03,001 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 21:08:03,001 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-20 21:08:03,002 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651836848]
[2023-12-20 21:08:03,003 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 21:08:03,006 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 21:08:03,006 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 21:08:03,022 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 21:08:03,022 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 21:08:03,024 INFO  L87              Difference]: Start difference. First operand  has 100 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-20 21:08:03,105 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 21:08:03,105 INFO  L93              Difference]: Finished difference Result 250 states and 466 transitions.
[2023-12-20 21:08:03,106 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 21:08:03,107 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 250
[2023-12-20 21:08:03,109 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 21:08:03,115 INFO  L225             Difference]: With dead ends: 250
[2023-12-20 21:08:03,116 INFO  L226             Difference]: Without dead ends: 151
[2023-12-20 21:08:03,118 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 21:08:03,121 INFO  L413           NwaCegarLoop]: 195 mSDtfsCounter, 76 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 21:08:03,121 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 341 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 21:08:03,132 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 151 states.
[2023-12-20 21:08:03,170 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148.
[2023-12-20 21:08:03,172 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 148 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 89 states have internal predecessors, (122), 57 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57)
[2023-12-20 21:08:03,177 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 236 transitions.
[2023-12-20 21:08:03,179 INFO  L78                 Accepts]: Start accepts. Automaton has 148 states and 236 transitions. Word has length 250
[2023-12-20 21:08:03,181 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 21:08:03,181 INFO  L495      AbstractCegarLoop]: Abstraction has 148 states and 236 transitions.
[2023-12-20 21:08:03,181 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-20 21:08:03,181 INFO  L276                IsEmpty]: Start isEmpty. Operand 148 states and 236 transitions.
[2023-12-20 21:08:03,184 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 251
[2023-12-20 21:08:03,186 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 21:08:03,186 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 21:08:03,195 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-20 21:08:03,393 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
[2023-12-20 21:08:03,393 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 21:08:03,394 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 21:08:03,394 INFO  L85        PathProgramCache]: Analyzing trace with hash 182330880, now seen corresponding path program 1 times
[2023-12-20 21:08:03,394 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 21:08:03,394 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644186266]
[2023-12-20 21:08:03,394 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:08:03,394 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 21:08:03,457 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 21:08:03,458 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291009277]
[2023-12-20 21:08:03,458 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:08:03,458 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 21:08:03,458 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:08:03,459 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)
[2023-12-20 21:08:03,486 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-20 21:08:03,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 21:08:03,610 INFO  L262         TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-20 21:08:03,625 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 21:08:03,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked.
[2023-12-20 21:08:03,671 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 21:08:03,671 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 21:08:03,671 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644186266]
[2023-12-20 21:08:03,671 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 21:08:03,672 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291009277]
[2023-12-20 21:08:03,672 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291009277] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 21:08:03,672 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 21:08:03,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-20 21:08:03,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285281482]
[2023-12-20 21:08:03,673 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 21:08:03,676 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 21:08:03,676 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 21:08:03,676 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 21:08:03,677 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 21:08:03,677 INFO  L87              Difference]: Start difference. First operand 148 states and 236 transitions. Second operand  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-20 21:08:03,751 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 21:08:03,751 INFO  L93              Difference]: Finished difference Result 436 states and 694 transitions.
[2023-12-20 21:08:03,751 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 21:08:03,751 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 250
[2023-12-20 21:08:03,754 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 21:08:03,760 INFO  L225             Difference]: With dead ends: 436
[2023-12-20 21:08:03,760 INFO  L226             Difference]: Without dead ends: 289
[2023-12-20 21:08:03,762 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 21:08:03,764 INFO  L413           NwaCegarLoop]: 163 mSDtfsCounter, 144 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 21:08:03,765 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 306 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 21:08:03,766 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 289 states.
[2023-12-20 21:08:03,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 287.
[2023-12-20 21:08:03,802 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 287 states, 168 states have (on average 1.3333333333333333) internal successors, (224), 170 states have internal predecessors, (224), 114 states have call successors, (114), 4 states have call predecessors, (114), 4 states have return successors, (114), 112 states have call predecessors, (114), 114 states have call successors, (114)
[2023-12-20 21:08:03,804 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 452 transitions.
[2023-12-20 21:08:03,804 INFO  L78                 Accepts]: Start accepts. Automaton has 287 states and 452 transitions. Word has length 250
[2023-12-20 21:08:03,804 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 21:08:03,805 INFO  L495      AbstractCegarLoop]: Abstraction has 287 states and 452 transitions.
[2023-12-20 21:08:03,805 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-20 21:08:03,805 INFO  L276                IsEmpty]: Start isEmpty. Operand 287 states and 452 transitions.
[2023-12-20 21:08:03,808 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2023-12-20 21:08:03,808 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 21:08:03,808 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 21:08:03,827 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-20 21:08:04,020 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
[2023-12-20 21:08:04,021 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 21:08:04,021 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 21:08:04,021 INFO  L85        PathProgramCache]: Analyzing trace with hash 1607842370, now seen corresponding path program 1 times
[2023-12-20 21:08:04,021 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 21:08:04,022 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619127138]
[2023-12-20 21:08:04,022 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:08:04,022 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 21:08:04,074 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 21:08:04,075 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970027417]
[2023-12-20 21:08:04,075 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:08:04,075 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 21:08:04,075 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:08:04,090 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)
[2023-12-20 21:08:04,092 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-20 21:08:04,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 21:08:04,230 INFO  L262         TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-20 21:08:04,234 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 21:08:05,598 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked.
[2023-12-20 21:08:05,598 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 21:08:05,598 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 21:08:05,599 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619127138]
[2023-12-20 21:08:05,599 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 21:08:05,599 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970027417]
[2023-12-20 21:08:05,599 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [970027417] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 21:08:05,599 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 21:08:05,599 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-20 21:08:05,600 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589054268]
[2023-12-20 21:08:05,600 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 21:08:05,600 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-20 21:08:05,600 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 21:08:05,601 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-20 21:08:05,601 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-20 21:08:05,602 INFO  L87              Difference]: Start difference. First operand 287 states and 452 transitions. Second operand  has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-20 21:08:06,258 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 21:08:06,258 INFO  L93              Difference]: Finished difference Result 731 states and 1142 transitions.
[2023-12-20 21:08:06,259 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-20 21:08:06,260 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 251
[2023-12-20 21:08:06,260 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 21:08:06,263 INFO  L225             Difference]: With dead ends: 731
[2023-12-20 21:08:06,263 INFO  L226             Difference]: Without dead ends: 445
[2023-12-20 21:08:06,264 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-20 21:08:06,265 INFO  L413           NwaCegarLoop]: 163 mSDtfsCounter, 242 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-20 21:08:06,266 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 275 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-20 21:08:06,267 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 445 states.
[2023-12-20 21:08:06,306 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 439.
[2023-12-20 21:08:06,307 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 439 states, 284 states have (on average 1.3732394366197183) internal successors, (390), 290 states have internal predecessors, (390), 146 states have call successors, (146), 8 states have call predecessors, (146), 8 states have return successors, (146), 140 states have call predecessors, (146), 146 states have call successors, (146)
[2023-12-20 21:08:06,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 682 transitions.
[2023-12-20 21:08:06,309 INFO  L78                 Accepts]: Start accepts. Automaton has 439 states and 682 transitions. Word has length 251
[2023-12-20 21:08:06,310 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 21:08:06,310 INFO  L495      AbstractCegarLoop]: Abstraction has 439 states and 682 transitions.
[2023-12-20 21:08:06,310 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-20 21:08:06,310 INFO  L276                IsEmpty]: Start isEmpty. Operand 439 states and 682 transitions.
[2023-12-20 21:08:06,312 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2023-12-20 21:08:06,313 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 21:08:06,313 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 21:08:06,332 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-20 21:08:06,536 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
[2023-12-20 21:08:06,537 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 21:08:06,537 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 21:08:06,537 INFO  L85        PathProgramCache]: Analyzing trace with hash -635366722, now seen corresponding path program 1 times
[2023-12-20 21:08:06,538 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 21:08:06,538 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685861946]
[2023-12-20 21:08:06,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:08:06,538 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 21:08:06,590 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 21:08:06,591 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727197487]
[2023-12-20 21:08:06,591 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:08:06,591 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 21:08:06,591 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:08:06,592 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)
[2023-12-20 21:08:06,632 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-20 21:08:06,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 21:08:06,795 INFO  L262         TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-20 21:08:06,798 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 21:08:06,974 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 1524 proven. 78 refuted. 0 times theorem prover too weak. 1678 trivial. 0 not checked.
[2023-12-20 21:08:06,974 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-20 21:08:07,149 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 42 proven. 78 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked.
[2023-12-20 21:08:07,150 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 21:08:07,150 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685861946]
[2023-12-20 21:08:07,150 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 21:08:07,150 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727197487]
[2023-12-20 21:08:07,150 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727197487] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-20 21:08:07,150 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-20 21:08:07,150 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2023-12-20 21:08:07,150 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794306930]
[2023-12-20 21:08:07,151 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-20 21:08:07,151 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-20 21:08:07,151 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 21:08:07,152 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-20 21:08:07,152 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2023-12-20 21:08:07,152 INFO  L87              Difference]: Start difference. First operand 439 states and 682 transitions. Second operand  has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68)
[2023-12-20 21:08:07,408 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 21:08:07,409 INFO  L93              Difference]: Finished difference Result 707 states and 1081 transitions.
[2023-12-20 21:08:07,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-20 21:08:07,410 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 251
[2023-12-20 21:08:07,411 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 21:08:07,412 INFO  L225             Difference]: With dead ends: 707
[2023-12-20 21:08:07,412 INFO  L226             Difference]: Without dead ends: 269
[2023-12-20 21:08:07,413 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 493 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210
[2023-12-20 21:08:07,414 INFO  L413           NwaCegarLoop]: 101 mSDtfsCounter, 166 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-20 21:08:07,414 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 219 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-20 21:08:07,415 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 269 states.
[2023-12-20 21:08:07,431 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 231.
[2023-12-20 21:08:07,431 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 231 states, 151 states have (on average 1.3112582781456954) internal successors, (198), 154 states have internal predecessors, (198), 73 states have call successors, (73), 6 states have call predecessors, (73), 6 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73)
[2023-12-20 21:08:07,432 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 344 transitions.
[2023-12-20 21:08:07,433 INFO  L78                 Accepts]: Start accepts. Automaton has 231 states and 344 transitions. Word has length 251
[2023-12-20 21:08:07,433 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 21:08:07,433 INFO  L495      AbstractCegarLoop]: Abstraction has 231 states and 344 transitions.
[2023-12-20 21:08:07,434 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68)
[2023-12-20 21:08:07,434 INFO  L276                IsEmpty]: Start isEmpty. Operand 231 states and 344 transitions.
[2023-12-20 21:08:07,435 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2023-12-20 21:08:07,435 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 21:08:07,436 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 21:08:07,444 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-20 21:08:07,641 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
[2023-12-20 21:08:07,642 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 21:08:07,642 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 21:08:07,642 INFO  L85        PathProgramCache]: Analyzing trace with hash -501774359, now seen corresponding path program 1 times
[2023-12-20 21:08:07,642 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 21:08:07,642 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356348561]
[2023-12-20 21:08:07,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:08:07,643 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 21:08:07,666 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 21:08:07,666 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410102832]
[2023-12-20 21:08:07,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:08:07,667 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 21:08:07,667 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:08:07,681 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)
[2023-12-20 21:08:07,687 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-20 21:08:07,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 21:08:07,829 INFO  L262         TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 42 conjunts are in the unsatisfiable core
[2023-12-20 21:08:07,835 INFO  L285         TraceCheckSpWp]: Computing forward predicates...