/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-56.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-20 19:43:50,484 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-20 19:43:50,544 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-20 19:43:50,547 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-20 19:43:50,547 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-20 19:43:50,577 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-20 19:43:50,577 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-20 19:43:50,578 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-20 19:43:50,578 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-20 19:43:50,578 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-20 19:43:50,578 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-20 19:43:50,579 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-20 19:43:50,581 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-20 19:43:50,584 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-20 19:43:50,585 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-20 19:43:50,585 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-20 19:43:50,586 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-20 19:43:50,586 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-20 19:43:50,586 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-20 19:43:50,587 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-20 19:43:50,587 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-20 19:43:50,587 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-20 19:43:50,587 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-20 19:43:50,588 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-20 19:43:50,588 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-20 19:43:50,588 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-20 19:43:50,588 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-20 19:43:50,588 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-20 19:43:50,589 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-20 19:43:50,589 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-20 19:43:50,590 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-20 19:43:50,590 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-20 19:43:50,590 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 19:43:50,590 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-20 19:43:50,590 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-20 19:43:50,590 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-20 19:43:50,590 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-20 19:43:50,590 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-20 19:43:50,591 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-20 19:43:50,591 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-20 19:43:50,591 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-20 19:43:50,591 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-20 19:43:50,591 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-20 19:43:50,592 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-20 19:43:50,767 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-20 19:43:50,782 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-20 19:43:50,783 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-20 19:43:50,784 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-20 19:43:50,784 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-20 19:43:50,785 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-56.i
[2023-12-20 19:43:51,940 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-20 19:43:52,110 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-20 19:43:52,110 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-56.i
[2023-12-20 19:43:52,117 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3860369cf/e691c4c0e4c141bf93e11d6132c79043/FLAGbd848cd0c
[2023-12-20 19:43:52,132 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3860369cf/e691c4c0e4c141bf93e11d6132c79043
[2023-12-20 19:43:52,135 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-20 19:43:52,136 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-20 19:43:52,137 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-20 19:43:52,137 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-20 19:43:52,141 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-20 19:43:52,141 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,142 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a77baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52, skipping insertion in model container
[2023-12-20 19:43:52,142 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,174 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-20 19:43:52,299 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-25_file-56.i[915,928]
[2023-12-20 19:43:52,351 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 19:43:52,360 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-20 19:43:52,368 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-25_file-56.i[915,928]
[2023-12-20 19:43:52,404 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 19:43:52,416 INFO  L206         MainTranslator]: Completed translation
[2023-12-20 19:43:52,416 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52 WrapperNode
[2023-12-20 19:43:52,416 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-20 19:43:52,417 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-20 19:43:52,417 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-20 19:43:52,417 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-20 19:43:52,423 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,438 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,501 INFO  L138                Inliner]: procedures = 26, calls = 65, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 248
[2023-12-20 19:43:52,501 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-20 19:43:52,502 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-20 19:43:52,502 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-20 19:43:52,502 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-20 19:43:52,520 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,521 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,554 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,603 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-20 19:43:52,603 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,603 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,618 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,631 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,636 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,638 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,649 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-20 19:43:52,650 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-20 19:43:52,650 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-20 19:43:52,650 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-20 19:43:52,651 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (1/1) ...
[2023-12-20 19:43:52,655 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 19:43:52,663 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 19:43:52,676 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-20 19:43:52,718 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-20 19:43:52,735 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-20 19:43:52,735 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-20 19:43:52,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-20 19:43:52,735 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-20 19:43:52,736 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-20 19:43:52,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-20 19:43:52,796 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-20 19:43:52,798 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-20 19:43:53,181 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-20 19:43:53,205 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-20 19:43:53,205 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-20 19:43:53,205 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:43:53 BoogieIcfgContainer
[2023-12-20 19:43:53,206 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-20 19:43:53,207 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-20 19:43:53,207 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-20 19:43:53,209 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-20 19:43:53,209 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 07:43:52" (1/3) ...
[2023-12-20 19:43:53,210 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4587bde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:43:53, skipping insertion in model container
[2023-12-20 19:43:53,210 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:43:52" (2/3) ...
[2023-12-20 19:43:53,210 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4587bde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:43:53, skipping insertion in model container
[2023-12-20 19:43:53,210 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:43:53" (3/3) ...
[2023-12-20 19:43:53,211 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-56.i
[2023-12-20 19:43:53,222 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-20 19:43:53,222 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-20 19:43:53,253 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-20 19:43:53,257 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;@53998445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-20 19:43:53,257 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-20 19:43:53,260 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 106 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 52 states have internal predecessors, (67), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-20 19:43:53,282 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2023-12-20 19:43:53,283 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 19:43:53,284 INFO  L195           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 19:43:53,284 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 19:43:53,289 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 19:43:53,290 INFO  L85        PathProgramCache]: Analyzing trace with hash -783701363, now seen corresponding path program 1 times
[2023-12-20 19:43:53,296 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 19:43:53,296 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163473555]
[2023-12-20 19:43:53,296 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:43:53,296 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 19:43:53,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 19:43:53,501 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 19:43:53,501 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163473555]
[2023-12-20 19:43:53,501 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-20 19:43:53,502 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682813263]
[2023-12-20 19:43:53,502 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:43:53,503 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 19:43:53,503 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 19:43:53,509 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 19:43:53,520 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-20 19:43:53,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 19:43:53,673 INFO  L262         TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-20 19:43:53,683 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 19:43:53,733 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked.
[2023-12-20 19:43:53,733 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 19:43:53,733 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682813263] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 19:43:53,734 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 19:43:53,734 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 19:43:53,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164474463]
[2023-12-20 19:43:53,736 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 19:43:53,745 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-20 19:43:53,746 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 19:43:53,765 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-20 19:43:53,766 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 19:43:53,767 INFO  L87              Difference]: Start difference. First operand  has 106 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 52 states have internal predecessors, (67), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) 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, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52)
[2023-12-20 19:43:53,802 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 19:43:53,803 INFO  L93              Difference]: Finished difference Result 209 states and 392 transitions.
[2023-12-20 19:43:53,814 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-20 19:43:53,816 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, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) Word has length 304
[2023-12-20 19:43:53,816 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 19:43:53,822 INFO  L225             Difference]: With dead ends: 209
[2023-12-20 19:43:53,823 INFO  L226             Difference]: Without dead ends: 104
[2023-12-20 19:43:53,826 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 303 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 19:43:53,829 INFO  L413           NwaCegarLoop]: 163 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, 163 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 19:43:53,829 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 19:43:53,840 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2023-12-20 19:43:53,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104.
[2023-12-20 19:43:53,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 104 states, 50 states have (on average 1.24) internal successors, (62), 50 states have internal predecessors, (62), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-20 19:43:53,868 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 166 transitions.
[2023-12-20 19:43:53,869 INFO  L78                 Accepts]: Start accepts. Automaton has 104 states and 166 transitions. Word has length 304
[2023-12-20 19:43:53,869 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 19:43:53,869 INFO  L495      AbstractCegarLoop]: Abstraction has 104 states and 166 transitions.
[2023-12-20 19:43:53,869 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, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52)
[2023-12-20 19:43:53,870 INFO  L276                IsEmpty]: Start isEmpty. Operand 104 states and 166 transitions.
[2023-12-20 19:43:53,873 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2023-12-20 19:43:53,874 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 19:43:53,874 INFO  L195           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 19:43:53,881 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-20 19:43:54,081 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-20 19:43:54,081 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 19:43:54,082 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 19:43:54,082 INFO  L85        PathProgramCache]: Analyzing trace with hash 1402646473, now seen corresponding path program 1 times
[2023-12-20 19:43:54,082 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 19:43:54,082 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867632688]
[2023-12-20 19:43:54,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:43:54,083 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 19:43:54,170 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 19:43:54,170 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133432135]
[2023-12-20 19:43:54,171 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:43:54,171 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 19:43:54,171 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 19:43:54,186 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 19:43:54,192 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-20 19:43:54,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 19:43:54,354 INFO  L262         TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-20 19:43:54,365 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 19:43:54,736 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 811 proven. 141 refuted. 0 times theorem prover too weak. 4352 trivial. 0 not checked.
[2023-12-20 19:43:54,736 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-20 19:43:54,965 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 12 proven. 141 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked.
[2023-12-20 19:43:54,965 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 19:43:54,965 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867632688]
[2023-12-20 19:43:54,966 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 19:43:54,966 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133432135]
[2023-12-20 19:43:54,966 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133432135] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-20 19:43:54,966 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-20 19:43:54,966 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-20 19:43:54,966 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852560011]
[2023-12-20 19:43:54,967 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-20 19:43:54,970 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-20 19:43:54,970 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 19:43:54,972 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-20 19:43:54,972 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-20 19:43:54,972 INFO  L87              Difference]: Start difference. First operand 104 states and 166 transitions. Second operand  has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (99), 2 states have call predecessors, (99), 4 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100)
[2023-12-20 19:43:55,184 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 19:43:55,184 INFO  L93              Difference]: Finished difference Result 213 states and 336 transitions.
[2023-12-20 19:43:55,184 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-20 19:43:55,185 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (99), 2 states have call predecessors, (99), 4 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) Word has length 304
[2023-12-20 19:43:55,186 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 19:43:55,187 INFO  L225             Difference]: With dead ends: 213
[2023-12-20 19:43:55,187 INFO  L226             Difference]: Without dead ends: 110
[2023-12-20 19:43:55,188 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 600 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-20 19:43:55,189 INFO  L413           NwaCegarLoop]: 106 mSDtfsCounter, 33 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-20 19:43:55,189 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 213 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-20 19:43:55,190 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2023-12-20 19:43:55,202 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108.
[2023-12-20 19:43:55,203 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 108 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 53 states have internal predecessors, (64), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-20 19:43:55,204 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 168 transitions.
[2023-12-20 19:43:55,204 INFO  L78                 Accepts]: Start accepts. Automaton has 108 states and 168 transitions. Word has length 304
[2023-12-20 19:43:55,205 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 19:43:55,205 INFO  L495      AbstractCegarLoop]: Abstraction has 108 states and 168 transitions.
[2023-12-20 19:43:55,205 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (99), 2 states have call predecessors, (99), 4 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100)
[2023-12-20 19:43:55,205 INFO  L276                IsEmpty]: Start isEmpty. Operand 108 states and 168 transitions.
[2023-12-20 19:43:55,207 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2023-12-20 19:43:55,207 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 19:43:55,208 INFO  L195           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 19:43:55,232 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-12-20 19:43:55,413 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-20 19:43:55,414 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 19:43:55,417 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 19:43:55,417 INFO  L85        PathProgramCache]: Analyzing trace with hash -372360889, now seen corresponding path program 1 times
[2023-12-20 19:43:55,417 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 19:43:55,417 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668262603]
[2023-12-20 19:43:55,417 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:43:55,418 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 19:43:55,480 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 19:43:55,480 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1158297240]
[2023-12-20 19:43:55,480 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:43:55,481 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 19:43:55,481 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 19:43:55,494 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 19:43:55,504 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-20 19:43:55,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 19:43:55,628 INFO  L262         TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-20 19:43:55,633 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 19:43:55,734 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2023-12-20 19:43:55,734 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 19:43:55,734 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 19:43:55,734 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668262603]
[2023-12-20 19:43:55,734 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 19:43:55,734 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158297240]
[2023-12-20 19:43:55,735 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158297240] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 19:43:55,735 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 19:43:55,735 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-20 19:43:55,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937099635]
[2023-12-20 19:43:55,735 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 19:43:55,736 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-20 19:43:55,736 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 19:43:55,737 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-20 19:43:55,737 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-20 19:43:55,738 INFO  L87              Difference]: Start difference. First operand 108 states and 168 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, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2023-12-20 19:43:55,824 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 19:43:55,825 INFO  L93              Difference]: Finished difference Result 243 states and 372 transitions.
[2023-12-20 19:43:55,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-20 19:43:55,825 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, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 304
[2023-12-20 19:43:55,829 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 19:43:55,831 INFO  L225             Difference]: With dead ends: 243
[2023-12-20 19:43:55,831 INFO  L226             Difference]: Without dead ends: 133
[2023-12-20 19:43:55,832 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-20 19:43:55,834 INFO  L413           NwaCegarLoop]: 157 mSDtfsCounter, 68 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 19:43:55,837 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 601 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 19:43:55,838 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 133 states.
[2023-12-20 19:43:55,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130.
[2023-12-20 19:43:55,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 130 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 71 states have internal predecessors, (86), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56)
[2023-12-20 19:43:55,867 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 198 transitions.
[2023-12-20 19:43:55,868 INFO  L78                 Accepts]: Start accepts. Automaton has 130 states and 198 transitions. Word has length 304
[2023-12-20 19:43:55,869 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 19:43:55,869 INFO  L495      AbstractCegarLoop]: Abstraction has 130 states and 198 transitions.
[2023-12-20 19:43:55,869 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, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2023-12-20 19:43:55,869 INFO  L276                IsEmpty]: Start isEmpty. Operand 130 states and 198 transitions.
[2023-12-20 19:43:55,873 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2023-12-20 19:43:55,873 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 19:43:55,874 INFO  L195           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 19:43:55,895 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-12-20 19:43:56,079 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 19:43:56,081 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 19:43:56,081 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 19:43:56,082 INFO  L85        PathProgramCache]: Analyzing trace with hash -765387899, now seen corresponding path program 1 times
[2023-12-20 19:43:56,082 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 19:43:56,082 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184097919]
[2023-12-20 19:43:56,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:43:56,083 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 19:43:56,125 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 19:43:56,125 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1079596234]
[2023-12-20 19:43:56,126 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 19:43:56,126 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 19:43:56,126 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 19:43:56,146 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 19:43:56,164 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-20 19:43:56,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 19:43:56,304 INFO  L262         TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 61 conjunts are in the unsatisfiable core
[2023-12-20 19:43:56,311 INFO  L285         TraceCheckSpWp]: Computing forward predicates...