/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_fillercodesize_ps-cn-10_file-45.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-20 19:16:57,617 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-20 19:16:57,684 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 19:16:57,689 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-20 19:16:57,690 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-20 19:16:57,711 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-20 19:16:57,711 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-20 19:16:57,711 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-20 19:16:57,712 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-20 19:16:57,712 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-20 19:16:57,712 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-20 19:16:57,712 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-20 19:16:57,713 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-20 19:16:57,713 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-20 19:16:57,713 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-20 19:16:57,713 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-20 19:16:57,714 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-20 19:16:57,714 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-20 19:16:57,714 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-20 19:16:57,714 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-20 19:16:57,714 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-20 19:16:57,717 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-20 19:16:57,717 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-20 19:16:57,717 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-20 19:16:57,720 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-20 19:16:57,720 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-20 19:16:57,720 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-20 19:16:57,720 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-20 19:16:57,721 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-20 19:16:57,721 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-20 19:16:57,721 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-20 19:16:57,722 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-20 19:16:57,722 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 19:16:57,722 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-20 19:16:57,722 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-20 19:16:57,722 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-20 19:16:57,722 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-20 19:16:57,722 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-20 19:16:57,722 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-20 19:16:57,722 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-20 19:16:57,722 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-20 19:16:57,723 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-20 19:16:57,723 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-20 19:16:57,723 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-20 19:16:57,882 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-20 19:16:57,901 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-20 19:16:57,903 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-20 19:16:57,903 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-20 19:16:57,904 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-20 19:16:57,904 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i
[2023-12-20 19:16:58,845 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-20 19:16:59,028 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-20 19:16:59,028 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i
[2023-12-20 19:16:59,036 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a89212263/166b6c7a33444bd084d6367f99e50fc7/FLAG091364f64
[2023-12-20 19:16:59,044 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a89212263/166b6c7a33444bd084d6367f99e50fc7
[2023-12-20 19:16:59,046 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-20 19:16:59,047 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-20 19:16:59,047 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-20 19:16:59,047 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-20 19:16:59,050 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-20 19:16:59,051 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,051 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e9d3b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59, skipping insertion in model container
[2023-12-20 19:16:59,051 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,073 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-20 19:16:59,180 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-10_file-45.i[915,928]
[2023-12-20 19:16:59,225 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 19:16:59,233 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-20 19:16:59,244 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-10_file-45.i[915,928]
[2023-12-20 19:16:59,275 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 19:16:59,287 INFO  L206         MainTranslator]: Completed translation
[2023-12-20 19:16:59,288 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59 WrapperNode
[2023-12-20 19:16:59,288 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-20 19:16:59,289 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-20 19:16:59,289 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-20 19:16:59,289 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-20 19:16:59,293 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,298 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,322 INFO  L138                Inliner]: procedures = 26, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 167
[2023-12-20 19:16:59,322 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-20 19:16:59,323 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-20 19:16:59,323 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-20 19:16:59,323 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-20 19:16:59,332 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,332 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,335 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,344 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 19:16:59,344 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,345 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,349 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,351 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,353 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,353 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,355 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-20 19:16:59,356 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-20 19:16:59,356 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-20 19:16:59,356 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-20 19:16:59,357 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (1/1) ...
[2023-12-20 19:16:59,360 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 19:16:59,367 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 19:16:59,376 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 19:16:59,405 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 19:16:59,423 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-20 19:16:59,423 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-20 19:16:59,424 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-20 19:16:59,424 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-20 19:16:59,424 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-20 19:16:59,424 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-20 19:16:59,497 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-20 19:16:59,498 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-20 19:16:59,710 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-20 19:16:59,740 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-20 19:16:59,741 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-20 19:16:59,741 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:16:59 BoogieIcfgContainer
[2023-12-20 19:16:59,741 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-20 19:16:59,742 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-20 19:16:59,743 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-20 19:16:59,745 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-20 19:16:59,745 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 07:16:59" (1/3) ...
[2023-12-20 19:16:59,745 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d6dc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:16:59, skipping insertion in model container
[2023-12-20 19:16:59,745 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:16:59" (2/3) ...
[2023-12-20 19:16:59,745 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d6dc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:16:59, skipping insertion in model container
[2023-12-20 19:16:59,745 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:16:59" (3/3) ...
[2023-12-20 19:16:59,746 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-45.i
[2023-12-20 19:16:59,757 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-20 19:16:59,757 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-20 19:16:59,784 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-20 19:16:59,788 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;@3089a66e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-20 19:16:59,788 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-20 19:16:59,791 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 65 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2023-12-20 19:16:59,800 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2023-12-20 19:16:59,800 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 19:16:59,800 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:16:59,801 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 19:16:59,804 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 19:16:59,804 INFO  L85        PathProgramCache]: Analyzing trace with hash 1253278939, now seen corresponding path program 1 times
[2023-12-20 19:16:59,809 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 19:16:59,810 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877149801]
[2023-12-20 19:16:59,810 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:16:59,810 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 19:16:59,964 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 19:16:59,964 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113025985]
[2023-12-20 19:16:59,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:16:59,965 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 19:16:59,965 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 19:16:59,967 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 19:16:59,980 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 19:17:00,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 19:17:00,099 INFO  L262         TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-20 19:17:00,106 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 19:17:00,191 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2023-12-20 19:17:00,191 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 19:17:00,192 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 19:17:00,192 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877149801]
[2023-12-20 19:17:00,192 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 19:17:00,192 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113025985]
[2023-12-20 19:17:00,193 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113025985] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 19:17:00,193 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 19:17:00,193 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-20 19:17:00,195 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849047381]
[2023-12-20 19:17:00,197 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 19:17:00,200 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 19:17:00,201 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 19:17:00,219 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 19:17:00,220 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 19:17:00,221 INFO  L87              Difference]: Start difference. First operand  has 65 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-20 19:17:00,307 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 19:17:00,307 INFO  L93              Difference]: Finished difference Result 186 states and 346 transitions.
[2023-12-20 19:17:00,308 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 19:17:00,309 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 153
[2023-12-20 19:17:00,310 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 19:17:00,316 INFO  L225             Difference]: With dead ends: 186
[2023-12-20 19:17:00,316 INFO  L226             Difference]: Without dead ends: 122
[2023-12-20 19:17:00,322 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 19:17:00,326 INFO  L413           NwaCegarLoop]: 90 mSDtfsCounter, 86 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 173 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 19:17:00,327 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 173 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 19:17:00,337 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 122 states.
[2023-12-20 19:17:00,376 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120.
[2023-12-20 19:17:00,378 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 120 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 67 states have internal predecessors, (83), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-20 19:17:00,382 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 183 transitions.
[2023-12-20 19:17:00,383 INFO  L78                 Accepts]: Start accepts. Automaton has 120 states and 183 transitions. Word has length 153
[2023-12-20 19:17:00,385 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 19:17:00,385 INFO  L495      AbstractCegarLoop]: Abstraction has 120 states and 183 transitions.
[2023-12-20 19:17:00,386 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-20 19:17:00,386 INFO  L276                IsEmpty]: Start isEmpty. Operand 120 states and 183 transitions.
[2023-12-20 19:17:00,390 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2023-12-20 19:17:00,391 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 19:17:00,391 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:17:00,398 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-20 19:17:00,595 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 19:17:00,596 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 19:17:00,596 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 19:17:00,597 INFO  L85        PathProgramCache]: Analyzing trace with hash 181465565, now seen corresponding path program 1 times
[2023-12-20 19:17:00,597 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 19:17:00,597 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149047642]
[2023-12-20 19:17:00,597 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:17:00,597 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 19:17:00,662 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 19:17:00,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1035356299]
[2023-12-20 19:17:00,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:17:00,663 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 19:17:00,663 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 19:17:00,666 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 19:17:00,670 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 19:17:00,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 19:17:00,769 INFO  L262         TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-20 19:17:00,783 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 19:17:02,053 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2023-12-20 19:17:02,053 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 19:17:02,054 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 19:17:02,054 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149047642]
[2023-12-20 19:17:02,054 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 19:17:02,054 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035356299]
[2023-12-20 19:17:02,054 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035356299] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 19:17:02,054 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 19:17:02,054 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-20 19:17:02,054 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002843659]
[2023-12-20 19:17:02,055 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 19:17:02,055 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-20 19:17:02,055 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 19:17:02,056 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-20 19:17:02,056 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-20 19:17:02,056 INFO  L87              Difference]: Start difference. First operand 120 states and 183 transitions. Second operand  has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-20 19:17:02,363 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 19:17:02,363 INFO  L93              Difference]: Finished difference Result 304 states and 457 transitions.
[2023-12-20 19:17:02,364 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-20 19:17:02,364 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 154
[2023-12-20 19:17:02,366 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 19:17:02,367 INFO  L225             Difference]: With dead ends: 304
[2023-12-20 19:17:02,367 INFO  L226             Difference]: Without dead ends: 185
[2023-12-20 19:17:02,368 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 151 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 19:17:02,369 INFO  L413           NwaCegarLoop]: 103 mSDtfsCounter, 145 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-20 19:17:02,369 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 163 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-20 19:17:02,370 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 185 states.
[2023-12-20 19:17:02,395 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 181.
[2023-12-20 19:17:02,397 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 181 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 112 states have internal predecessors, (138), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66)
[2023-12-20 19:17:02,399 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 270 transitions.
[2023-12-20 19:17:02,400 INFO  L78                 Accepts]: Start accepts. Automaton has 181 states and 270 transitions. Word has length 154
[2023-12-20 19:17:02,400 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 19:17:02,400 INFO  L495      AbstractCegarLoop]: Abstraction has 181 states and 270 transitions.
[2023-12-20 19:17:02,400 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-20 19:17:02,400 INFO  L276                IsEmpty]: Start isEmpty. Operand 181 states and 270 transitions.
[2023-12-20 19:17:02,404 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2023-12-20 19:17:02,404 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 19:17:02,404 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:17:02,411 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 19:17:02,612 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 19:17:02,613 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 19:17:02,613 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 19:17:02,613 INFO  L85        PathProgramCache]: Analyzing trace with hash -560820525, now seen corresponding path program 1 times
[2023-12-20 19:17:02,613 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 19:17:02,615 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640161383]
[2023-12-20 19:17:02,615 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:17:02,615 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 19:17:02,660 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 19:17:02,661 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610619457]
[2023-12-20 19:17:02,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:17:02,663 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 19:17:02,666 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 19:17:02,667 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 19:17:02,695 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 19:17:02,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 19:17:02,761 INFO  L262         TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-20 19:17:02,767 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 19:17:02,861 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 612 proven. 30 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked.
[2023-12-20 19:17:02,861 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-20 19:17:02,985 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 42 proven. 30 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked.
[2023-12-20 19:17:02,985 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 19:17:02,985 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640161383]
[2023-12-20 19:17:02,985 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 19:17:02,985 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610619457]
[2023-12-20 19:17:02,985 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610619457] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-20 19:17:02,985 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-20 19:17:02,985 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2023-12-20 19:17:02,986 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23627080]
[2023-12-20 19:17:02,986 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-20 19:17:02,986 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-20 19:17:02,986 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 19:17:02,987 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-20 19:17:02,987 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2023-12-20 19:17:02,987 INFO  L87              Difference]: Start difference. First operand 181 states and 270 transitions. Second operand  has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2023-12-20 19:17:03,207 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 19:17:03,207 INFO  L93              Difference]: Finished difference Result 291 states and 426 transitions.
[2023-12-20 19:17:03,207 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-20 19:17:03,208 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 154
[2023-12-20 19:17:03,208 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 19:17:03,210 INFO  L225             Difference]: With dead ends: 291
[2023-12-20 19:17:03,210 INFO  L226             Difference]: Without dead ends: 111
[2023-12-20 19:17:03,211 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 299 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 19:17:03,213 INFO  L413           NwaCegarLoop]: 57 mSDtfsCounter, 135 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-20 19:17:03,217 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 118 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-20 19:17:03,218 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 111 states.
[2023-12-20 19:17:03,241 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 97.
[2023-12-20 19:17:03,241 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 61 states have internal predecessors, (71), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33)
[2023-12-20 19:17:03,242 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions.
[2023-12-20 19:17:03,242 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 154
[2023-12-20 19:17:03,243 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 19:17:03,243 INFO  L495      AbstractCegarLoop]: Abstraction has 97 states and 137 transitions.
[2023-12-20 19:17:03,243 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2023-12-20 19:17:03,243 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions.
[2023-12-20 19:17:03,244 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-20 19:17:03,244 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 19:17:03,244 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:17:03,252 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 19:17:03,450 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 19:17:03,450 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 19:17:03,450 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 19:17:03,450 INFO  L85        PathProgramCache]: Analyzing trace with hash 1320441092, now seen corresponding path program 1 times
[2023-12-20 19:17:03,451 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 19:17:03,451 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514958108]
[2023-12-20 19:17:03,451 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:17:03,451 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 19:17:03,486 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 19:17:03,486 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [924916432]
[2023-12-20 19:17:03,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:17:03,487 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 19:17:03,487 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 19:17:03,488 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 19:17:03,492 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 19:17:03,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 19:17:03,581 INFO  L262         TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 45 conjunts are in the unsatisfiable core
[2023-12-20 19:17:03,585 INFO  L285         TraceCheckSpWp]: Computing forward predicates...