/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-ps-cn_file-98.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-20 21:39:23,734 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-20 21:39:23,816 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 21:39:23,820 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-20 21:39:23,821 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-20 21:39:23,847 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-20 21:39:23,847 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-20 21:39:23,847 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-20 21:39:23,848 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-20 21:39:23,851 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-20 21:39:23,852 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-20 21:39:23,852 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-20 21:39:23,853 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-20 21:39:23,854 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-20 21:39:23,854 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-20 21:39:23,854 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-20 21:39:23,854 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-20 21:39:23,855 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-20 21:39:23,855 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-20 21:39:23,855 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-20 21:39:23,855 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-20 21:39:23,856 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-20 21:39:23,857 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-20 21:39:23,857 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-20 21:39:23,857 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-20 21:39:23,858 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-20 21:39:23,858 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-20 21:39:23,858 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-20 21:39:23,859 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-20 21:39:23,859 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-20 21:39:23,860 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-20 21:39:23,860 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-20 21:39:23,860 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 21:39:23,860 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-20 21:39:23,860 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-20 21:39:23,861 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-20 21:39:23,861 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-20 21:39:23,861 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-20 21:39:23,861 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-20 21:39:23,861 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-20 21:39:23,861 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-20 21:39:23,861 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-20 21:39:23,862 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-20 21:39:23,862 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-20 21:39:24,087 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-20 21:39:24,110 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-20 21:39:24,112 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-20 21:39:24,113 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-20 21:39:24,113 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-20 21:39:24,114 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-98.i
[2023-12-20 21:39:25,218 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-20 21:39:25,484 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-20 21:39:25,485 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-98.i
[2023-12-20 21:39:25,496 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d42794c6/17f792f05ff04107a416895ab91ca308/FLAGef62c8cc3
[2023-12-20 21:39:25,510 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d42794c6/17f792f05ff04107a416895ab91ca308
[2023-12-20 21:39:25,512 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-20 21:39:25,513 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-20 21:39:25,516 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-20 21:39:25,516 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-20 21:39:25,520 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-20 21:39:25,521 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,521 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a6b381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25, skipping insertion in model container
[2023-12-20 21:39:25,522 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,558 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-20 21:39:25,710 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-ps-cn_file-98.i[919,932]
[2023-12-20 21:39:25,790 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 21:39:25,803 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-20 21:39:25,818 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-ps-cn_file-98.i[919,932]
[2023-12-20 21:39:25,848 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 21:39:25,871 INFO  L206         MainTranslator]: Completed translation
[2023-12-20 21:39:25,872 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25 WrapperNode
[2023-12-20 21:39:25,872 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-20 21:39:25,873 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-20 21:39:25,873 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-20 21:39:25,873 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-20 21:39:25,878 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,888 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,933 INFO  L138                Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 244
[2023-12-20 21:39:25,934 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-20 21:39:25,935 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-20 21:39:25,935 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-20 21:39:25,935 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-20 21:39:25,944 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,944 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,948 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,969 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 21:39:25,969 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,970 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,983 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,986 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,989 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:25,991 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:26,011 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-20 21:39:26,012 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-20 21:39:26,013 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-20 21:39:26,013 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-20 21:39:26,013 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (1/1) ...
[2023-12-20 21:39:26,019 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 21:39:26,035 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:39:26,049 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 21:39:26,076 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 21:39:26,084 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-20 21:39:26,084 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-20 21:39:26,084 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-20 21:39:26,085 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-20 21:39:26,085 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-20 21:39:26,085 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-20 21:39:26,188 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-20 21:39:26,190 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-20 21:39:26,511 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-20 21:39:26,550 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-20 21:39:26,551 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-20 21:39:26,551 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 09:39:26 BoogieIcfgContainer
[2023-12-20 21:39:26,551 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-20 21:39:26,553 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-20 21:39:26,553 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-20 21:39:26,556 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-20 21:39:26,556 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 09:39:25" (1/3) ...
[2023-12-20 21:39:26,557 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2404f3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 09:39:26, skipping insertion in model container
[2023-12-20 21:39:26,557 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:39:25" (2/3) ...
[2023-12-20 21:39:26,557 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2404f3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 09:39:26, skipping insertion in model container
[2023-12-20 21:39:26,557 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 09:39:26" (3/3) ...
[2023-12-20 21:39:26,558 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-98.i
[2023-12-20 21:39:26,574 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-20 21:39:26,575 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-20 21:39:26,624 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-20 21:39:26,630 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;@6076cf05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-20 21:39:26,630 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-20 21:39:26,638 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 99 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2023-12-20 21:39:26,664 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2023-12-20 21:39:26,664 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 21:39:26,665 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:39:26,665 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 21:39:26,670 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 21:39:26,670 INFO  L85        PathProgramCache]: Analyzing trace with hash -1728117862, now seen corresponding path program 1 times
[2023-12-20 21:39:26,681 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 21:39:26,681 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831139381]
[2023-12-20 21:39:26,682 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:39:26,682 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 21:39:26,852 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 21:39:26,977 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 21:39:26,977 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831139381]
[2023-12-20 21:39:26,977 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-20 21:39:26,978 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724112339]
[2023-12-20 21:39:26,978 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:39:26,978 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 21:39:26,978 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:39:26,981 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 21:39:26,986 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 21:39:27,172 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 21:39:27,178 INFO  L262         TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-20 21:39:27,198 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 21:39:27,263 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked.
[2023-12-20 21:39:27,264 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 21:39:27,264 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [724112339] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 21:39:27,264 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 21:39:27,265 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 21:39:27,267 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152111817]
[2023-12-20 21:39:27,267 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 21:39:27,289 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-20 21:39:27,289 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 21:39:27,311 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-20 21:39:27,312 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 21:39:27,314 INFO  L87              Difference]: Start difference. First operand  has 99 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42)
[2023-12-20 21:39:27,368 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 21:39:27,368 INFO  L93              Difference]: Finished difference Result 195 states and 360 transitions.
[2023-12-20 21:39:27,369 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-20 21:39:27,370 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 252
[2023-12-20 21:39:27,371 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 21:39:27,378 INFO  L225             Difference]: With dead ends: 195
[2023-12-20 21:39:27,378 INFO  L226             Difference]: Without dead ends: 97
[2023-12-20 21:39:27,384 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 21:39:27,387 INFO  L413           NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 21:39:27,389 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 21:39:27,402 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2023-12-20 21:39:27,435 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97.
[2023-12-20 21:39:27,436 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2023-12-20 21:39:27,438 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 155 transitions.
[2023-12-20 21:39:27,439 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 155 transitions. Word has length 252
[2023-12-20 21:39:27,439 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 21:39:27,440 INFO  L495      AbstractCegarLoop]: Abstraction has 97 states and 155 transitions.
[2023-12-20 21:39:27,440 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42)
[2023-12-20 21:39:27,440 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 155 transitions.
[2023-12-20 21:39:27,444 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2023-12-20 21:39:27,444 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 21:39:27,444 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:39:27,455 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 21:39:27,651 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 21:39:27,652 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 21:39:27,652 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 21:39:27,653 INFO  L85        PathProgramCache]: Analyzing trace with hash -186324646, now seen corresponding path program 1 times
[2023-12-20 21:39:27,653 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 21:39:27,653 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959583290]
[2023-12-20 21:39:27,653 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:39:27,653 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 21:39:27,731 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 21:39:27,732 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024614685]
[2023-12-20 21:39:27,732 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:39:27,732 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 21:39:27,732 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:39:27,733 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 21:39:27,750 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 21:39:27,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 21:39:27,928 INFO  L262         TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-20 21:39:27,934 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 21:39:28,048 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2023-12-20 21:39:28,048 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 21:39:28,048 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 21:39:28,048 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959583290]
[2023-12-20 21:39:28,048 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 21:39:28,049 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024614685]
[2023-12-20 21:39:28,049 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024614685] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 21:39:28,049 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 21:39:28,049 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-20 21:39:28,050 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375742440]
[2023-12-20 21:39:28,050 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 21:39:28,053 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 21:39:28,054 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 21:39:28,055 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 21:39:28,055 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 21:39:28,055 INFO  L87              Difference]: Start difference. First operand 97 states and 155 transitions. Second operand  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-20 21:39:28,115 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 21:39:28,116 INFO  L93              Difference]: Finished difference Result 193 states and 309 transitions.
[2023-12-20 21:39:28,116 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 21:39:28,117 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 252
[2023-12-20 21:39:28,118 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 21:39:28,126 INFO  L225             Difference]: With dead ends: 193
[2023-12-20 21:39:28,126 INFO  L226             Difference]: Without dead ends: 97
[2023-12-20 21:39:28,128 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 250 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 21:39:28,130 INFO  L413           NwaCegarLoop]: 146 mSDtfsCounter, 16 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 21:39:28,131 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 278 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 21:39:28,133 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2023-12-20 21:39:28,149 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97.
[2023-12-20 21:39:28,150 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97 states, 53 states have (on average 1.320754716981132) internal successors, (70), 53 states have internal predecessors, (70), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2023-12-20 21:39:28,151 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 154 transitions.
[2023-12-20 21:39:28,151 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 154 transitions. Word has length 252
[2023-12-20 21:39:28,153 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 21:39:28,153 INFO  L495      AbstractCegarLoop]: Abstraction has 97 states and 154 transitions.
[2023-12-20 21:39:28,153 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-20 21:39:28,153 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 154 transitions.
[2023-12-20 21:39:28,156 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2023-12-20 21:39:28,156 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 21:39:28,156 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:39:28,164 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 21:39:28,357 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 21:39:28,357 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 21:39:28,358 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 21:39:28,358 INFO  L85        PathProgramCache]: Analyzing trace with hash 493733724, now seen corresponding path program 1 times
[2023-12-20 21:39:28,358 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 21:39:28,358 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441575941]
[2023-12-20 21:39:28,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:39:28,358 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 21:39:28,431 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 21:39:28,432 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975960073]
[2023-12-20 21:39:28,432 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:39:28,432 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 21:39:28,432 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:39:28,435 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 21:39:28,439 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 21:39:28,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 21:39:28,617 INFO  L262         TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-20 21:39:28,622 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 21:39:29,136 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2023-12-20 21:39:29,137 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 21:39:29,137 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 21:39:29,137 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441575941]
[2023-12-20 21:39:29,137 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 21:39:29,138 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975960073]
[2023-12-20 21:39:29,138 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [975960073] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 21:39:29,138 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 21:39:29,138 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-20 21:39:29,138 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194149803]
[2023-12-20 21:39:29,138 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 21:39:29,139 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-20 21:39:29,139 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 21:39:29,140 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-20 21:39:29,141 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-20 21:39:29,141 INFO  L87              Difference]: Start difference. First operand 97 states and 154 transitions. Second operand  has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-20 21:39:30,267 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 21:39:30,267 INFO  L93              Difference]: Finished difference Result 396 states and 631 transitions.
[2023-12-20 21:39:30,268 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-20 21:39:30,268 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 252
[2023-12-20 21:39:30,269 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 21:39:30,271 INFO  L225             Difference]: With dead ends: 396
[2023-12-20 21:39:30,271 INFO  L226             Difference]: Without dead ends: 300
[2023-12-20 21:39:30,272 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132
[2023-12-20 21:39:30,273 INFO  L413           NwaCegarLoop]: 279 mSDtfsCounter, 316 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-20 21:39:30,274 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 978 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-20 21:39:30,274 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 300 states.
[2023-12-20 21:39:30,334 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 282.
[2023-12-20 21:39:30,336 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 282 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 152 states have internal predecessors, (200), 126 states have call successors, (126), 3 states have call predecessors, (126), 3 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126)
[2023-12-20 21:39:30,338 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 452 transitions.
[2023-12-20 21:39:30,338 INFO  L78                 Accepts]: Start accepts. Automaton has 282 states and 452 transitions. Word has length 252
[2023-12-20 21:39:30,338 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 21:39:30,339 INFO  L495      AbstractCegarLoop]: Abstraction has 282 states and 452 transitions.
[2023-12-20 21:39:30,339 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-20 21:39:30,339 INFO  L276                IsEmpty]: Start isEmpty. Operand 282 states and 452 transitions.
[2023-12-20 21:39:30,341 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2023-12-20 21:39:30,341 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 21:39:30,341 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:39:30,350 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 21:39:30,548 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 21:39:30,549 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 21:39:30,549 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 21:39:30,550 INFO  L85        PathProgramCache]: Analyzing trace with hash 493793306, now seen corresponding path program 1 times
[2023-12-20 21:39:30,550 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 21:39:30,550 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819296396]
[2023-12-20 21:39:30,550 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:39:30,550 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 21:39:30,586 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 21:39:30,586 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697592382]
[2023-12-20 21:39:30,587 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 21:39:30,587 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 21:39:30,587 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 21:39:30,588 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 21:39:30,608 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 21:39:30,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 21:39:30,771 INFO  L262         TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 60 conjunts are in the unsatisfiable core
[2023-12-20 21:39:30,779 INFO  L285         TraceCheckSpWp]: Computing forward predicates...