/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-52.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 08:00:25,754 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 08:00:25,819 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-19 08:00:25,825 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 08:00:25,826 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 08:00:25,853 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 08:00:25,854 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 08:00:25,854 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 08:00:25,854 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 08:00:25,855 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 08:00:25,855 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 08:00:25,855 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 08:00:25,858 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 08:00:25,862 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 08:00:25,862 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 08:00:25,862 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 08:00:25,863 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 08:00:25,863 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 08:00:25,864 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 08:00:25,864 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 08:00:25,864 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 08:00:25,864 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 08:00:25,865 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 08:00:25,865 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 08:00:25,865 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 08:00:25,865 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 08:00:25,865 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 08:00:25,866 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 08:00:25,866 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 08:00:25,866 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 08:00:25,867 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 08:00:25,867 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 08:00:25,867 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 08:00:25,868 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 08:00:25,868 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 08:00:25,868 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 08:00:25,868 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 08:00:25,868 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 08:00:25,868 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 08:00:25,868 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 08:00:25,869 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 08:00:25,869 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 08:00:25,869 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 08:00:25,869 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 08:00:26,093 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 08:00:26,112 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 08:00:26,114 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 08:00:26,115 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 08:00:26,115 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 08:00:26,116 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-52.i
[2023-12-19 08:00:27,251 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 08:00:27,463 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 08:00:27,464 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-52.i
[2023-12-19 08:00:27,475 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b456d134/fdecc15960c54c548cef298451ca6571/FLAG43096f036
[2023-12-19 08:00:27,487 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b456d134/fdecc15960c54c548cef298451ca6571
[2023-12-19 08:00:27,489 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 08:00:27,490 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 08:00:27,491 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 08:00:27,491 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 08:00:27,503 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 08:00:27,503 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,504 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6757cbd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27, skipping insertion in model container
[2023-12-19 08:00:27,504 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,533 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 08:00:27,660 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-50_file-52.i[915,928]
[2023-12-19 08:00:27,720 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 08:00:27,734 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 08:00:27,747 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-50_file-52.i[915,928]
[2023-12-19 08:00:27,783 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 08:00:27,811 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 08:00:27,813 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27 WrapperNode
[2023-12-19 08:00:27,813 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 08:00:27,816 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 08:00:27,816 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 08:00:27,816 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 08:00:27,822 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,831 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,876 INFO  L138                Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 249
[2023-12-19 08:00:27,876 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 08:00:27,877 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 08:00:27,877 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 08:00:27,877 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 08:00:27,887 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,887 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,891 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,908 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-19 08:00:27,908 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,909 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,918 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,921 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,923 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,925 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,929 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 08:00:27,930 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 08:00:27,930 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 08:00:27,930 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 08:00:27,931 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (1/1) ...
[2023-12-19 08:00:27,936 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 08:00:27,956 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:00:27,973 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-19 08:00:28,004 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-19 08:00:28,015 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 08:00:28,015 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 08:00:28,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 08:00:28,016 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 08:00:28,017 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 08:00:28,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 08:00:28,144 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 08:00:28,146 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 08:00:28,521 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 08:00:28,571 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 08:00:28,571 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 08:00:28,572 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:00:28 BoogieIcfgContainer
[2023-12-19 08:00:28,572 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 08:00:28,574 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 08:00:28,574 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 08:00:28,577 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 08:00:28,577 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 08:00:27" (1/3) ...
[2023-12-19 08:00:28,578 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613f2331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 08:00:28, skipping insertion in model container
[2023-12-19 08:00:28,578 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:00:27" (2/3) ...
[2023-12-19 08:00:28,578 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613f2331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 08:00:28, skipping insertion in model container
[2023-12-19 08:00:28,578 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:00:28" (3/3) ...
[2023-12-19 08:00:28,580 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-52.i
[2023-12-19 08:00:28,598 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 08:00:28,598 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 08:00:28,654 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 08:00:28,659 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;@307ff34f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 08:00:28,659 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 08:00:28,663 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 96 states, 59 states have (on average 1.4915254237288136) internal successors, (88), 60 states have internal predecessors, (88), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-19 08:00:28,677 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-19 08:00:28,677 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:00:28,678 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 08:00:28,678 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:00:28,683 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:00:28,683 INFO  L85        PathProgramCache]: Analyzing trace with hash -1348610428, now seen corresponding path program 1 times
[2023-12-19 08:00:28,692 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:00:28,692 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178826756]
[2023-12-19 08:00:28,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:00:28,693 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:00:28,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:00:28,993 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 08:00:28,994 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178826756]
[2023-12-19 08:00:28,997 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-19 08:00:28,997 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95267992]
[2023-12-19 08:00:28,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:00:28,998 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:00:28,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:00:29,002 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 08:00:29,003 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-19 08:00:29,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:00:29,206 INFO  L262         TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-19 08:00:29,226 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 08:00:29,295 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked.
[2023-12-19 08:00:29,295 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 08:00:29,296 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [95267992] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 08:00:29,296 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 08:00:29,299 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 08:00:29,301 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942877566]
[2023-12-19 08:00:29,302 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 08:00:29,307 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-19 08:00:29,308 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 08:00:29,344 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-19 08:00:29,345 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 08:00:29,348 INFO  L87              Difference]: Start difference. First operand  has 96 states, 59 states have (on average 1.4915254237288136) internal successors, (88), 60 states have internal predecessors, (88), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-19 08:00:29,409 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 08:00:29,409 INFO  L93              Difference]: Finished difference Result 189 states and 344 transitions.
[2023-12-19 08:00:29,411 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-19 08:00:29,412 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 214
[2023-12-19 08:00:29,412 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 08:00:29,420 INFO  L225             Difference]: With dead ends: 189
[2023-12-19 08:00:29,421 INFO  L226             Difference]: Without dead ends: 94
[2023-12-19 08:00:29,425 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 08:00:29,428 INFO  L413           NwaCegarLoop]: 148 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, 148 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 08:00:29,429 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 08:00:29,444 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2023-12-19 08:00:29,482 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2023-12-19 08:00:29,483 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 58 states have internal predecessors, (83), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-19 08:00:29,488 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 151 transitions.
[2023-12-19 08:00:29,490 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 151 transitions. Word has length 214
[2023-12-19 08:00:29,490 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 08:00:29,490 INFO  L495      AbstractCegarLoop]: Abstraction has 94 states and 151 transitions.
[2023-12-19 08:00:29,491 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-19 08:00:29,491 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 151 transitions.
[2023-12-19 08:00:29,501 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-19 08:00:29,501 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:00:29,501 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 08:00:29,512 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-19 08:00:29,709 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-19 08:00:29,710 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:00:29,710 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:00:29,710 INFO  L85        PathProgramCache]: Analyzing trace with hash 1124544904, now seen corresponding path program 1 times
[2023-12-19 08:00:29,711 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:00:29,711 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352278997]
[2023-12-19 08:00:29,711 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:00:29,711 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:00:29,799 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 08:00:29,800 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371116044]
[2023-12-19 08:00:29,800 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:00:29,800 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:00:29,801 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:00:29,802 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 08:00:29,828 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-19 08:00:29,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:00:29,971 INFO  L262         TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-19 08:00:29,981 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 08:00:30,083 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-19 08:00:30,083 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 08:00:30,084 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 08:00:30,084 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352278997]
[2023-12-19 08:00:30,084 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 08:00:30,084 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371116044]
[2023-12-19 08:00:30,084 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [371116044] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 08:00:30,084 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 08:00:30,085 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-19 08:00:30,085 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893678269]
[2023-12-19 08:00:30,085 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 08:00:30,086 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-19 08:00:30,087 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 08:00:30,088 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-19 08:00:30,088 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-19 08:00:30,088 INFO  L87              Difference]: Start difference. First operand 94 states and 151 transitions. Second operand  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-19 08:00:30,226 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 08:00:30,227 INFO  L93              Difference]: Finished difference Result 252 states and 405 transitions.
[2023-12-19 08:00:30,228 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-19 08:00:30,228 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 214
[2023-12-19 08:00:30,229 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 08:00:30,231 INFO  L225             Difference]: With dead ends: 252
[2023-12-19 08:00:30,231 INFO  L226             Difference]: Without dead ends: 159
[2023-12-19 08:00:30,232 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-19 08:00:30,233 INFO  L413           NwaCegarLoop]: 193 mSDtfsCounter, 98 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-19 08:00:30,233 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 479 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-19 08:00:30,234 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 159 states.
[2023-12-19 08:00:30,250 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 156.
[2023-12-19 08:00:30,251 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 156 states, 103 states have (on average 1.4757281553398058) internal successors, (152), 104 states have internal predecessors, (152), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-19 08:00:30,252 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 252 transitions.
[2023-12-19 08:00:30,252 INFO  L78                 Accepts]: Start accepts. Automaton has 156 states and 252 transitions. Word has length 214
[2023-12-19 08:00:30,253 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 08:00:30,253 INFO  L495      AbstractCegarLoop]: Abstraction has 156 states and 252 transitions.
[2023-12-19 08:00:30,253 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-19 08:00:30,254 INFO  L276                IsEmpty]: Start isEmpty. Operand 156 states and 252 transitions.
[2023-12-19 08:00:30,256 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-19 08:00:30,256 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:00:30,256 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 08:00:30,265 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-12-19 08:00:30,462 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-19 08:00:30,463 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:00:30,463 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:00:30,464 INFO  L85        PathProgramCache]: Analyzing trace with hash 1343399622, now seen corresponding path program 1 times
[2023-12-19 08:00:30,464 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:00:30,464 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126790278]
[2023-12-19 08:00:30,464 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:00:30,464 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:00:30,539 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 08:00:30,539 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000885631]
[2023-12-19 08:00:30,539 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:00:30,540 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:00:30,540 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:00:30,546 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 08:00:30,571 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-19 08:00:30,702 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:00:30,706 INFO  L262         TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-19 08:00:30,713 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 08:00:30,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-19 08:00:30,745 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 08:00:30,745 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 08:00:30,745 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126790278]
[2023-12-19 08:00:30,745 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 08:00:30,746 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000885631]
[2023-12-19 08:00:30,746 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000885631] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 08:00:30,746 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 08:00:30,746 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 08:00:30,746 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448664545]
[2023-12-19 08:00:30,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 08:00:30,747 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 08:00:30,747 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 08:00:30,748 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 08:00:30,748 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 08:00:30,749 INFO  L87              Difference]: Start difference. First operand 156 states and 252 transitions. Second operand  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-19 08:00:30,810 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 08:00:30,811 INFO  L93              Difference]: Finished difference Result 436 states and 703 transitions.
[2023-12-19 08:00:30,811 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 08:00:30,811 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 214
[2023-12-19 08:00:30,814 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 08:00:30,819 INFO  L225             Difference]: With dead ends: 436
[2023-12-19 08:00:30,819 INFO  L226             Difference]: Without dead ends: 281
[2023-12-19 08:00:30,820 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 08:00:30,822 INFO  L413           NwaCegarLoop]: 226 mSDtfsCounter, 95 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 08:00:30,826 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 365 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 08:00:30,828 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 281 states.
[2023-12-19 08:00:30,875 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278.
[2023-12-19 08:00:30,877 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 278 states, 189 states have (on average 1.4814814814814814) internal successors, (280), 192 states have internal predecessors, (280), 84 states have call successors, (84), 4 states have call predecessors, (84), 4 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84)
[2023-12-19 08:00:30,880 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 448 transitions.
[2023-12-19 08:00:30,881 INFO  L78                 Accepts]: Start accepts. Automaton has 278 states and 448 transitions. Word has length 214
[2023-12-19 08:00:30,882 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 08:00:30,882 INFO  L495      AbstractCegarLoop]: Abstraction has 278 states and 448 transitions.
[2023-12-19 08:00:30,882 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-19 08:00:30,882 INFO  L276                IsEmpty]: Start isEmpty. Operand 278 states and 448 transitions.
[2023-12-19 08:00:30,885 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-19 08:00:30,886 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:00:30,886 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 08:00:30,896 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-19 08:00:31,093 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:00:31,095 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:00:31,096 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:00:31,096 INFO  L85        PathProgramCache]: Analyzing trace with hash -462038712, now seen corresponding path program 1 times
[2023-12-19 08:00:31,096 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:00:31,097 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095967585]
[2023-12-19 08:00:31,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:00:31,097 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:00:31,139 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 08:00:31,139 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527375428]
[2023-12-19 08:00:31,140 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:00:31,140 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:00:31,140 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:00:31,141 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 08:00:31,193 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-19 08:00:31,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:00:31,397 INFO  L262         TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 76 conjunts are in the unsatisfiable core
[2023-12-19 08:00:31,407 INFO  L285         TraceCheckSpWp]: Computing forward predicates...