/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.6.prop3-back-serstep.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-16 19:00:47,176 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-16 19:00:47,239 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2023-12-16 19:00:47,242 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-16 19:00:47,242 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-16 19:00:47,263 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-16 19:00:47,263 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-16 19:00:47,264 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-16 19:00:47,264 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-16 19:00:47,267 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-16 19:00:47,267 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-16 19:00:47,268 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-16 19:00:47,268 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-16 19:00:47,269 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-16 19:00:47,269 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-16 19:00:47,269 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-16 19:00:47,269 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-16 19:00:47,270 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-16 19:00:47,270 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-16 19:00:47,270 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-16 19:00:47,270 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-16 19:00:47,270 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-16 19:00:47,270 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-16 19:00:47,271 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-16 19:00:47,271 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-16 19:00:47,271 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-16 19:00:47,272 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-16 19:00:47,272 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-16 19:00:47,272 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-16 19:00:47,272 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 19:00:47,273 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-16 19:00:47,273 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-16 19:00:47,273 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-16 19:00:47,273 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-16 19:00:47,274 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-16 19:00:47,274 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-16 19:00:47,274 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-16 19:00:47,274 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-16 19:00:47,274 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-16 19:00:47,274 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-16 19:00:47,274 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-16 19:00:47,475 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-16 19:00:47,495 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-16 19:00:47,496 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-16 19:00:47,497 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-16 19:00:47,498 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-16 19:00:47,498 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.6.prop3-back-serstep.c
[2023-12-16 19:00:48,463 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-16 19:00:48,749 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-16 19:00:48,750 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.6.prop3-back-serstep.c
[2023-12-16 19:00:48,767 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b4971b8/5e5298c820c94cb4b16821d1be9d77ee/FLAGed87bf5c0
[2023-12-16 19:00:48,779 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b4971b8/5e5298c820c94cb4b16821d1be9d77ee
[2023-12-16 19:00:48,781 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-16 19:00:48,783 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-16 19:00:48,788 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-16 19:00:48,788 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-16 19:00:48,795 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-16 19:00:48,795 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:00:48" (1/1) ...
[2023-12-16 19:00:48,796 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8015930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:48, skipping insertion in model container
[2023-12-16 19:00:48,796 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:00:48" (1/1) ...
[2023-12-16 19:00:48,855 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-16 19:00:49,013 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.6.prop3-back-serstep.c[1172,1185]
[2023-12-16 19:00:49,406 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 19:00:49,441 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-16 19:00:49,448 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.6.prop3-back-serstep.c[1172,1185]
[2023-12-16 19:00:49,576 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 19:00:49,586 INFO  L206         MainTranslator]: Completed translation
[2023-12-16 19:00:49,586 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49 WrapperNode
[2023-12-16 19:00:49,586 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-16 19:00:49,587 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-16 19:00:49,587 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-16 19:00:49,587 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-16 19:00:49,592 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:49,649 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:50,447 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13067
[2023-12-16 19:00:50,447 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-16 19:00:50,448 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-16 19:00:50,448 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-16 19:00:50,448 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-16 19:00:50,455 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:50,455 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:50,654 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:50,810 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].
[2023-12-16 19:00:50,810 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:50,810 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:51,049 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:51,117 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:51,174 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:51,211 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:51,404 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-16 19:00:51,406 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-16 19:00:51,406 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-16 19:00:51,406 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-16 19:00:51,407 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (1/1) ...
[2023-12-16 19:00:51,410 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 19:00:51,419 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:00:51,429 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)
[2023-12-16 19:00:51,450 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
[2023-12-16 19:00:51,457 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-16 19:00:51,457 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-16 19:00:51,457 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-16 19:00:51,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-16 19:00:52,015 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-16 19:00:52,016 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-16 19:00:57,391 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-16 19:00:57,553 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-16 19:00:57,554 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-16 19:00:57,554 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:00:57 BoogieIcfgContainer
[2023-12-16 19:00:57,555 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-16 19:00:57,557 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-16 19:00:57,557 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-16 19:00:57,559 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-16 19:00:57,559 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:00:48" (1/3) ...
[2023-12-16 19:00:57,560 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5be400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:00:57, skipping insertion in model container
[2023-12-16 19:00:57,560 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:49" (2/3) ...
[2023-12-16 19:00:57,560 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5be400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:00:57, skipping insertion in model container
[2023-12-16 19:00:57,561 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:00:57" (3/3) ...
[2023-12-16 19:00:57,561 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.brp2.6.prop3-back-serstep.c
[2023-12-16 19:00:57,575 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-16 19:00:57,576 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-16 19:00:57,642 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-16 19:00:57,647 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;@1fb30ca5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-16 19:00:57,647 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-16 19:00:57,656 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3071 states, 3069 states have (on average 1.671228413163897) internal successors, (5129), 3070 states have internal predecessors, (5129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:57,671 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 357
[2023-12-16 19:00:57,671 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:57,672 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:57,672 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:57,675 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:57,676 INFO  L85        PathProgramCache]: Analyzing trace with hash -2113911444, now seen corresponding path program 1 times
[2023-12-16 19:00:57,682 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:57,682 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447114996]
[2023-12-16 19:00:57,682 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:57,683 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:58,026 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:59,023 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:00:59,023 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:59,023 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447114996]
[2023-12-16 19:00:59,024 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447114996] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:00:59,024 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:00:59,024 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:00:59,026 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011767431]
[2023-12-16 19:00:59,027 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:59,032 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:00:59,032 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:59,057 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:00:59,057 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:59,064 INFO  L87              Difference]: Start difference. First operand  has 3071 states, 3069 states have (on average 1.671228413163897) internal successors, (5129), 3070 states have internal predecessors, (5129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:59,260 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:59,260 INFO  L93              Difference]: Finished difference Result 6006 states and 10034 transitions.
[2023-12-16 19:00:59,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:00:59,263 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356
[2023-12-16 19:00:59,266 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:59,288 INFO  L225             Difference]: With dead ends: 6006
[2023-12-16 19:00:59,288 INFO  L226             Difference]: Without dead ends: 3071
[2023-12-16 19:00:59,298 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:59,301 INFO  L413           NwaCegarLoop]: 5122 mSDtfsCounter, 1 mSDsluCounter, 10239 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15361 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:59,303 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 15361 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:00:59,322 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3071 states.
[2023-12-16 19:00:59,399 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 3071.
[2023-12-16 19:00:59,407 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3071 states, 3070 states have (on average 1.6700325732899022) internal successors, (5127), 3070 states have internal predecessors, (5127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:59,414 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 5127 transitions.
[2023-12-16 19:00:59,415 INFO  L78                 Accepts]: Start accepts. Automaton has 3071 states and 5127 transitions. Word has length 356
[2023-12-16 19:00:59,418 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:59,418 INFO  L495      AbstractCegarLoop]: Abstraction has 3071 states and 5127 transitions.
[2023-12-16 19:00:59,419 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:59,419 INFO  L276                IsEmpty]: Start isEmpty. Operand 3071 states and 5127 transitions.
[2023-12-16 19:00:59,425 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 358
[2023-12-16 19:00:59,426 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:59,426 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:59,426 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-16 19:00:59,426 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:59,427 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:59,427 INFO  L85        PathProgramCache]: Analyzing trace with hash -1105018264, now seen corresponding path program 1 times
[2023-12-16 19:00:59,427 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:59,428 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746381219]
[2023-12-16 19:00:59,428 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:59,428 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:59,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:00,085 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:01:00,085 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:00,085 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746381219]
[2023-12-16 19:01:00,086 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746381219] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:01:00,086 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:01:00,086 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:01:00,086 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146495390]
[2023-12-16 19:01:00,086 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:00,089 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:01:00,092 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:00,092 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:01:00,093 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:01:00,094 INFO  L87              Difference]: Start difference. First operand 3071 states and 5127 transitions. Second operand  has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:00,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:00,176 INFO  L93              Difference]: Finished difference Result 6009 states and 10032 transitions.
[2023-12-16 19:01:00,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:01:00,176 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 357
[2023-12-16 19:01:00,177 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:00,185 INFO  L225             Difference]: With dead ends: 6009
[2023-12-16 19:01:00,186 INFO  L226             Difference]: Without dead ends: 3074
[2023-12-16 19:01:00,191 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:01:00,192 INFO  L413           NwaCegarLoop]: 5122 mSDtfsCounter, 1 mSDsluCounter, 10237 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15359 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:00,193 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 15359 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:01:00,198 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3074 states.
[2023-12-16 19:01:00,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 3073.
[2023-12-16 19:01:00,233 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3073 states, 3072 states have (on average 1.6695963541666667) internal successors, (5129), 3072 states have internal predecessors, (5129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:00,240 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3073 states to 3073 states and 5129 transitions.
[2023-12-16 19:01:00,240 INFO  L78                 Accepts]: Start accepts. Automaton has 3073 states and 5129 transitions. Word has length 357
[2023-12-16 19:01:00,241 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:00,241 INFO  L495      AbstractCegarLoop]: Abstraction has 3073 states and 5129 transitions.
[2023-12-16 19:01:00,241 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:00,241 INFO  L276                IsEmpty]: Start isEmpty. Operand 3073 states and 5129 transitions.
[2023-12-16 19:01:00,244 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 359
[2023-12-16 19:01:00,244 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:00,245 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:00,245 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-16 19:01:00,245 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:00,251 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:00,252 INFO  L85        PathProgramCache]: Analyzing trace with hash -106258170, now seen corresponding path program 1 times
[2023-12-16 19:01:00,252 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:00,252 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194388499]
[2023-12-16 19:01:00,252 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:00,252 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:00,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:00,763 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:01:00,763 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:00,764 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194388499]
[2023-12-16 19:01:00,764 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194388499] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:01:00,764 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:01:00,764 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:01:00,764 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115668472]
[2023-12-16 19:01:00,765 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:00,765 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:01:00,765 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:00,766 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:01:00,768 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:01:00,769 INFO  L87              Difference]: Start difference. First operand 3073 states and 5129 transitions. Second operand  has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:00,896 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:00,896 INFO  L93              Difference]: Finished difference Result 8941 states and 14926 transitions.
[2023-12-16 19:01:00,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 19:01:00,897 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 358
[2023-12-16 19:01:00,897 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:00,913 INFO  L225             Difference]: With dead ends: 8941
[2023-12-16 19:01:00,914 INFO  L226             Difference]: Without dead ends: 6004
[2023-12-16 19:01:00,921 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-16 19:01:00,923 INFO  L413           NwaCegarLoop]: 5767 mSDtfsCounter, 4890 mSDsluCounter, 10880 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4890 SdHoareTripleChecker+Valid, 16647 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:00,923 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4890 Valid, 16647 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:01:00,930 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6004 states.
[2023-12-16 19:01:00,980 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3075.
[2023-12-16 19:01:00,985 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3075 states, 3074 states have (on average 1.6691607026675341) internal successors, (5131), 3074 states have internal predecessors, (5131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:00,992 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3075 states to 3075 states and 5131 transitions.
[2023-12-16 19:01:00,993 INFO  L78                 Accepts]: Start accepts. Automaton has 3075 states and 5131 transitions. Word has length 358
[2023-12-16 19:01:00,994 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:00,994 INFO  L495      AbstractCegarLoop]: Abstraction has 3075 states and 5131 transitions.
[2023-12-16 19:01:00,995 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:00,996 INFO  L276                IsEmpty]: Start isEmpty. Operand 3075 states and 5131 transitions.
[2023-12-16 19:01:01,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 360
[2023-12-16 19:01:01,000 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:01,004 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:01,004 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-16 19:01:01,004 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:01,005 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:01,005 INFO  L85        PathProgramCache]: Analyzing trace with hash -2087121396, now seen corresponding path program 1 times
[2023-12-16 19:01:01,005 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:01,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484132392]
[2023-12-16 19:01:01,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:01,006 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:01,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:01,484 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:01:01,484 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:01,484 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484132392]
[2023-12-16 19:01:01,484 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484132392] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:01:01,484 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:01:01,484 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:01:01,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454988109]
[2023-12-16 19:01:01,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:01,485 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:01:01,485 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:01,485 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:01:01,486 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:01:01,486 INFO  L87              Difference]: Start difference. First operand 3075 states and 5131 transitions. Second operand  has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:01,609 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:01,609 INFO  L93              Difference]: Finished difference Result 8944 states and 14927 transitions.
[2023-12-16 19:01:01,609 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 19:01:01,610 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359
[2023-12-16 19:01:01,610 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:01,627 INFO  L225             Difference]: With dead ends: 8944
[2023-12-16 19:01:01,627 INFO  L226             Difference]: Without dead ends: 6005
[2023-12-16 19:01:01,632 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-16 19:01:01,636 INFO  L413           NwaCegarLoop]: 5762 mSDtfsCounter, 4887 mSDsluCounter, 10875 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4887 SdHoareTripleChecker+Valid, 16637 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:01,637 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4887 Valid, 16637 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:01:01,643 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6005 states.
[2023-12-16 19:01:01,695 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6005 to 3077.
[2023-12-16 19:01:01,700 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3077 states, 3076 states have (on average 1.6687256176853056) internal successors, (5133), 3076 states have internal predecessors, (5133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:01,706 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3077 states to 3077 states and 5133 transitions.
[2023-12-16 19:01:01,706 INFO  L78                 Accepts]: Start accepts. Automaton has 3077 states and 5133 transitions. Word has length 359
[2023-12-16 19:01:01,706 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:01,706 INFO  L495      AbstractCegarLoop]: Abstraction has 3077 states and 5133 transitions.
[2023-12-16 19:01:01,707 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:01,707 INFO  L276                IsEmpty]: Start isEmpty. Operand 3077 states and 5133 transitions.
[2023-12-16 19:01:01,709 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 361
[2023-12-16 19:01:01,709 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:01,710 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:01,710 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-16 19:01:01,760 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:01,760 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:01,761 INFO  L85        PathProgramCache]: Analyzing trace with hash 141466846, now seen corresponding path program 1 times
[2023-12-16 19:01:01,761 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:01,761 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620017871]
[2023-12-16 19:01:01,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:01,761 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:01,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:02,306 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:01:02,307 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:02,307 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620017871]
[2023-12-16 19:01:02,307 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620017871] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:01:02,307 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:01:02,307 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-16 19:01:02,307 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399659502]
[2023-12-16 19:01:02,307 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:02,308 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-16 19:01:02,308 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:02,309 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-16 19:01:02,309 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-16 19:01:02,309 INFO  L87              Difference]: Start difference. First operand 3077 states and 5133 transitions. Second operand  has 6 states, 6 states have (on average 60.0) internal successors, (360), 5 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:02,502 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:02,502 INFO  L93              Difference]: Finished difference Result 9342 states and 15585 transitions.
[2023-12-16 19:01:02,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:01:02,503 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 60.0) internal successors, (360), 5 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360
[2023-12-16 19:01:02,503 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:02,520 INFO  L225             Difference]: With dead ends: 9342
[2023-12-16 19:01:02,520 INFO  L226             Difference]: Without dead ends: 6401
[2023-12-16 19:01:02,525 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2023-12-16 19:01:02,526 INFO  L413           NwaCegarLoop]: 5766 mSDtfsCounter, 20092 mSDsluCounter, 16000 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20092 SdHoareTripleChecker+Valid, 21766 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:02,526 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [20092 Valid, 21766 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:01:02,531 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6401 states.
[2023-12-16 19:01:02,581 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6401 to 3464.
[2023-12-16 19:01:02,586 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3464 states, 3463 states have (on average 1.6684955241120416) internal successors, (5778), 3463 states have internal predecessors, (5778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:02,594 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3464 states to 3464 states and 5778 transitions.
[2023-12-16 19:01:02,594 INFO  L78                 Accepts]: Start accepts. Automaton has 3464 states and 5778 transitions. Word has length 360
[2023-12-16 19:01:02,595 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:02,595 INFO  L495      AbstractCegarLoop]: Abstraction has 3464 states and 5778 transitions.
[2023-12-16 19:01:02,595 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 60.0) internal successors, (360), 5 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:02,595 INFO  L276                IsEmpty]: Start isEmpty. Operand 3464 states and 5778 transitions.
[2023-12-16 19:01:02,664 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2246
[2023-12-16 19:01:02,664 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:02,665 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:02,665 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-16 19:01:02,665 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:02,666 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:02,666 INFO  L85        PathProgramCache]: Analyzing trace with hash 1693527156, now seen corresponding path program 1 times
[2023-12-16 19:01:02,666 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:02,666 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406479247]
[2023-12-16 19:01:02,666 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:02,667 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:02,927 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:01:02,927 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104771906]
[2023-12-16 19:01:02,928 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:02,928 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:02,928 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:01:02,930 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)
[2023-12-16 19:01:02,957 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-16 19:01:05,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:05,186 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9853 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 19:01:05,243 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:05,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:01:05,344 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 19:01:05,344 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:05,344 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406479247]
[2023-12-16 19:01:05,344 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:05,344 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104771906]
[2023-12-16 19:01:05,344 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104771906] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:01:05,344 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:01:05,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:01:05,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282753282]
[2023-12-16 19:01:05,345 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:05,346 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:01:05,347 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:05,348 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:01:05,348 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:01:05,354 INFO  L87              Difference]: Start difference. First operand 3464 states and 5778 transitions. Second operand  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:05,527 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:05,528 INFO  L93              Difference]: Finished difference Result 6415 states and 10701 transitions.
[2023-12-16 19:01:05,528 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:01:05,529 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2245
[2023-12-16 19:01:05,530 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:05,541 INFO  L225             Difference]: With dead ends: 6415
[2023-12-16 19:01:05,541 INFO  L226             Difference]: Without dead ends: 3474
[2023-12-16 19:01:05,544 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2244 GetRequests, 2242 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:01:05,545 INFO  L413           NwaCegarLoop]: 5122 mSDtfsCounter, 12 mSDsluCounter, 10234 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15356 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:05,545 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15356 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:01:05,549 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3474 states.
[2023-12-16 19:01:05,585 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3474 to 3466.
[2023-12-16 19:01:05,590 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3466 states, 3465 states have (on average 1.668109668109668) internal successors, (5780), 3465 states have internal predecessors, (5780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:05,598 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3466 states to 3466 states and 5780 transitions.
[2023-12-16 19:01:05,599 INFO  L78                 Accepts]: Start accepts. Automaton has 3466 states and 5780 transitions. Word has length 2245
[2023-12-16 19:01:05,600 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:05,600 INFO  L495      AbstractCegarLoop]: Abstraction has 3466 states and 5780 transitions.
[2023-12-16 19:01:05,601 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:05,601 INFO  L276                IsEmpty]: Start isEmpty. Operand 3466 states and 5780 transitions.
[2023-12-16 19:01:05,676 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2246
[2023-12-16 19:01:05,676 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:05,677 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:05,710 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-16 19:01:05,892 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,SelfDestructingSolverStorable5
[2023-12-16 19:01:05,893 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:05,893 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:05,894 INFO  L85        PathProgramCache]: Analyzing trace with hash -1311484698, now seen corresponding path program 1 times
[2023-12-16 19:01:05,894 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:05,894 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851835987]
[2023-12-16 19:01:05,894 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:05,894 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:06,151 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:01:06,151 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062361374]
[2023-12-16 19:01:06,152 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:06,152 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:06,152 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:01:06,153 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)
[2023-12-16 19:01:06,159 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-16 19:01:08,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:08,307 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9854 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 19:01:08,363 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:08,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:01:08,403 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 19:01:08,404 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:08,404 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851835987]
[2023-12-16 19:01:08,404 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:08,404 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062361374]
[2023-12-16 19:01:08,404 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062361374] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:01:08,404 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:01:08,404 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:01:08,404 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910379505]
[2023-12-16 19:01:08,404 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:08,406 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:01:08,406 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:08,408 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:01:08,408 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:01:08,408 INFO  L87              Difference]: Start difference. First operand 3466 states and 5780 transitions. Second operand  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:08,499 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:08,499 INFO  L93              Difference]: Finished difference Result 6418 states and 10703 transitions.
[2023-12-16 19:01:08,499 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:01:08,501 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2245
[2023-12-16 19:01:08,503 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:08,508 INFO  L225             Difference]: With dead ends: 6418
[2023-12-16 19:01:08,508 INFO  L226             Difference]: Without dead ends: 3475
[2023-12-16 19:01:08,512 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2244 GetRequests, 2242 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:01:08,513 INFO  L413           NwaCegarLoop]: 5122 mSDtfsCounter, 12 mSDsluCounter, 10234 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15356 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:08,513 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15356 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:01:08,517 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3475 states.
[2023-12-16 19:01:08,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3475 to 3467.
[2023-12-16 19:01:08,558 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3467 states, 3466 states have (on average 1.6679169070975188) internal successors, (5781), 3466 states have internal predecessors, (5781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:08,564 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 5781 transitions.
[2023-12-16 19:01:08,564 INFO  L78                 Accepts]: Start accepts. Automaton has 3467 states and 5781 transitions. Word has length 2245
[2023-12-16 19:01:08,565 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:08,565 INFO  L495      AbstractCegarLoop]: Abstraction has 3467 states and 5781 transitions.
[2023-12-16 19:01:08,566 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:08,566 INFO  L276                IsEmpty]: Start isEmpty. Operand 3467 states and 5781 transitions.
[2023-12-16 19:01:08,598 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2246
[2023-12-16 19:01:08,598 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:08,599 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:08,638 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-16 19:01:08,812 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,SelfDestructingSolverStorable6
[2023-12-16 19:01:08,813 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:08,813 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:08,814 INFO  L85        PathProgramCache]: Analyzing trace with hash -1043788328, now seen corresponding path program 1 times
[2023-12-16 19:01:08,814 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:08,814 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388668949]
[2023-12-16 19:01:08,814 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:08,814 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:09,049 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:01:09,050 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157321744]
[2023-12-16 19:01:09,051 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:09,051 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:09,051 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:01:09,052 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)
[2023-12-16 19:01:09,074 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-16 19:01:11,271 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:11,331 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9855 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 19:01:11,365 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:11,429 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:01:11,430 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 19:01:11,430 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:11,430 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388668949]
[2023-12-16 19:01:11,430 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:11,430 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157321744]
[2023-12-16 19:01:11,430 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157321744] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:01:11,430 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:01:11,430 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:01:11,431 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093072839]
[2023-12-16 19:01:11,431 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:11,433 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:01:11,433 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:11,435 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:01:11,435 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:01:11,435 INFO  L87              Difference]: Start difference. First operand 3467 states and 5781 transitions. Second operand  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:11,517 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:11,517 INFO  L93              Difference]: Finished difference Result 6420 states and 10705 transitions.
[2023-12-16 19:01:11,517 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:01:11,518 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2245
[2023-12-16 19:01:11,520 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:11,524 INFO  L225             Difference]: With dead ends: 6420
[2023-12-16 19:01:11,524 INFO  L226             Difference]: Without dead ends: 3476
[2023-12-16 19:01:11,528 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2244 GetRequests, 2242 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:01:11,529 INFO  L413           NwaCegarLoop]: 5122 mSDtfsCounter, 12 mSDsluCounter, 10234 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15356 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:11,529 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15356 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:01:11,532 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3476 states.
[2023-12-16 19:01:11,570 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 3468.
[2023-12-16 19:01:11,574 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3468 states, 3467 states have (on average 1.6677242572829536) internal successors, (5782), 3467 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:11,579 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 5782 transitions.
[2023-12-16 19:01:11,580 INFO  L78                 Accepts]: Start accepts. Automaton has 3468 states and 5782 transitions. Word has length 2245
[2023-12-16 19:01:11,581 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:11,581 INFO  L495      AbstractCegarLoop]: Abstraction has 3468 states and 5782 transitions.
[2023-12-16 19:01:11,582 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:11,582 INFO  L276                IsEmpty]: Start isEmpty. Operand 3468 states and 5782 transitions.
[2023-12-16 19:01:11,626 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2246
[2023-12-16 19:01:11,626 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:11,627 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:11,661 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-16 19:01:11,832 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:11,833 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:11,833 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:11,834 INFO  L85        PathProgramCache]: Analyzing trace with hash -936758326, now seen corresponding path program 1 times
[2023-12-16 19:01:11,834 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:11,834 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254097933]
[2023-12-16 19:01:11,834 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:11,834 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:12,118 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:01:12,118 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683315308]
[2023-12-16 19:01:12,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:12,119 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:12,119 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:01:12,120 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)
[2023-12-16 19:01:12,122 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-16 19:01:14,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:14,203 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9856 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:01:14,233 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:14,629 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 10 proven. 231 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2023-12-16 19:01:14,629 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:01:14,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked.
[2023-12-16 19:01:14,707 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:14,707 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254097933]
[2023-12-16 19:01:14,710 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:14,710 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683315308]
[2023-12-16 19:01:14,710 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683315308] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:01:14,710 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:01:14,711 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:01:14,711 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811980111]
[2023-12-16 19:01:14,711 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:14,713 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:01:14,713 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:14,714 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:01:14,715 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:01:14,716 INFO  L87              Difference]: Start difference. First operand 3468 states and 5782 transitions. Second operand  has 5 states, 5 states have (on average 398.4) internal successors, (1992), 5 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:17,396 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:17,397 INFO  L93              Difference]: Finished difference Result 12069 states and 20054 transitions.
[2023-12-16 19:01:17,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:01:17,399 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 398.4) internal successors, (1992), 5 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2245
[2023-12-16 19:01:17,401 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:17,411 INFO  L225             Difference]: With dead ends: 12069
[2023-12-16 19:01:17,411 INFO  L226             Difference]: Without dead ends: 6403
[2023-12-16 19:01:17,417 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4489 GetRequests, 4480 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-16 19:01:17,418 INFO  L413           NwaCegarLoop]: 8856 mSDtfsCounter, 13315 mSDsluCounter, 8576 mSDsCounter, 0 mSdLazyCounter, 3433 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13315 SdHoareTripleChecker+Valid, 17432 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 3433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:17,418 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13315 Valid, 17432 Invalid, 3656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 3433 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-16 19:01:17,423 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6403 states.
[2023-12-16 19:01:17,462 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6403 to 3470.
[2023-12-16 19:01:17,467 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3470 states, 3469 states have (on average 1.6673392908619198) internal successors, (5784), 3469 states have internal predecessors, (5784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:17,474 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 5784 transitions.
[2023-12-16 19:01:17,474 INFO  L78                 Accepts]: Start accepts. Automaton has 3470 states and 5784 transitions. Word has length 2245
[2023-12-16 19:01:17,476 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:17,476 INFO  L495      AbstractCegarLoop]: Abstraction has 3470 states and 5784 transitions.
[2023-12-16 19:01:17,477 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 398.4) internal successors, (1992), 5 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:17,478 INFO  L276                IsEmpty]: Start isEmpty. Operand 3470 states and 5784 transitions.
[2023-12-16 19:01:17,509 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2247
[2023-12-16 19:01:17,509 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:17,510 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:17,540 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-16 19:01:17,724 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:17,724 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:17,725 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:17,725 INFO  L85        PathProgramCache]: Analyzing trace with hash 1181773830, now seen corresponding path program 1 times
[2023-12-16 19:01:17,725 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:17,726 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465336203]
[2023-12-16 19:01:17,726 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:17,726 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:17,958 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:01:17,958 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747036878]
[2023-12-16 19:01:17,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:17,959 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:17,959 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:01:17,960 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:01:17,964 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-16 19:01:20,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:20,146 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9859 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:01:20,174 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:20,464 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 12 proven. 231 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2023-12-16 19:01:20,464 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:01:20,535 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2023-12-16 19:01:20,535 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:20,535 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465336203]
[2023-12-16 19:01:20,535 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:20,535 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747036878]
[2023-12-16 19:01:20,535 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747036878] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:01:20,535 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:01:20,536 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:01:20,536 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447394874]
[2023-12-16 19:01:20,536 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:20,537 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:01:20,538 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:20,539 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:01:20,539 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:01:20,540 INFO  L87              Difference]: Start difference. First operand 3470 states and 5784 transitions. Second operand  has 5 states, 5 states have (on average 399.0) internal successors, (1995), 5 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:23,493 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:23,493 INFO  L93              Difference]: Finished difference Result 12077 states and 20062 transitions.
[2023-12-16 19:01:23,494 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:01:23,494 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 399.0) internal successors, (1995), 5 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2246
[2023-12-16 19:01:23,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:23,520 INFO  L225             Difference]: With dead ends: 12077
[2023-12-16 19:01:23,520 INFO  L226             Difference]: Without dead ends: 6404
[2023-12-16 19:01:23,526 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4491 GetRequests, 4482 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-16 19:01:23,527 INFO  L413           NwaCegarLoop]: 8848 mSDtfsCounter, 9094 mSDsluCounter, 13033 mSDsCounter, 0 mSdLazyCounter, 4725 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9094 SdHoareTripleChecker+Valid, 21881 SdHoareTripleChecker+Invalid, 4948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 4725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:23,528 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9094 Valid, 21881 Invalid, 4948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 4725 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2023-12-16 19:01:23,533 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6404 states.
[2023-12-16 19:01:23,582 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6404 to 3472.
[2023-12-16 19:01:23,587 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3472 states, 3471 states have (on average 1.6669547680783636) internal successors, (5786), 3471 states have internal predecessors, (5786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:23,591 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 5786 transitions.
[2023-12-16 19:01:23,591 INFO  L78                 Accepts]: Start accepts. Automaton has 3472 states and 5786 transitions. Word has length 2246
[2023-12-16 19:01:23,593 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:23,594 INFO  L495      AbstractCegarLoop]: Abstraction has 3472 states and 5786 transitions.
[2023-12-16 19:01:23,594 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 399.0) internal successors, (1995), 5 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:23,594 INFO  L276                IsEmpty]: Start isEmpty. Operand 3472 states and 5786 transitions.
[2023-12-16 19:01:23,625 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2248
[2023-12-16 19:01:23,625 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:23,626 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:23,657 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-12-16 19:01:23,840 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-12-16 19:01:23,840 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:23,841 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:23,841 INFO  L85        PathProgramCache]: Analyzing trace with hash -1084153756, now seen corresponding path program 1 times
[2023-12-16 19:01:23,841 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:23,841 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130080201]
[2023-12-16 19:01:23,842 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:23,842 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:24,064 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:01:24,064 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183987528]
[2023-12-16 19:01:24,064 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:24,064 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:24,065 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:01:24,065 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:01:24,088 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-12-16 19:01:26,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:26,131 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9862 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:01:26,156 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:26,436 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 14 proven. 231 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2023-12-16 19:01:26,437 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:01:26,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2023-12-16 19:01:26,498 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:26,498 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130080201]
[2023-12-16 19:01:26,498 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:26,498 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183987528]
[2023-12-16 19:01:26,498 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [183987528] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:01:26,498 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:01:26,499 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:01:26,500 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254569905]
[2023-12-16 19:01:26,500 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:26,502 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:01:26,502 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:26,504 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:01:26,504 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:01:26,505 INFO  L87              Difference]: Start difference. First operand 3472 states and 5786 transitions. Second operand  has 5 states, 5 states have (on average 399.6) internal successors, (1998), 5 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:29,067 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:29,067 INFO  L93              Difference]: Finished difference Result 12085 states and 20070 transitions.
[2023-12-16 19:01:29,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:01:29,068 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 399.6) internal successors, (1998), 5 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2247
[2023-12-16 19:01:29,071 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:29,080 INFO  L225             Difference]: With dead ends: 12085
[2023-12-16 19:01:29,080 INFO  L226             Difference]: Without dead ends: 6405
[2023-12-16 19:01:29,086 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4493 GetRequests, 4484 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-16 19:01:29,087 INFO  L413           NwaCegarLoop]: 8840 mSDtfsCounter, 13302 mSDsluCounter, 8565 mSDsCounter, 0 mSdLazyCounter, 3433 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13302 SdHoareTripleChecker+Valid, 17405 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 3433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:29,087 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13302 Valid, 17405 Invalid, 3656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 3433 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2023-12-16 19:01:29,092 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6405 states.
[2023-12-16 19:01:29,134 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 3474.
[2023-12-16 19:01:29,138 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3474 states, 3473 states have (on average 1.6665706881658509) internal successors, (5788), 3473 states have internal predecessors, (5788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:29,142 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 5788 transitions.
[2023-12-16 19:01:29,142 INFO  L78                 Accepts]: Start accepts. Automaton has 3474 states and 5788 transitions. Word has length 2247
[2023-12-16 19:01:29,144 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:29,144 INFO  L495      AbstractCegarLoop]: Abstraction has 3474 states and 5788 transitions.
[2023-12-16 19:01:29,144 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 399.6) internal successors, (1998), 5 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:29,144 INFO  L276                IsEmpty]: Start isEmpty. Operand 3474 states and 5788 transitions.
[2023-12-16 19:01:29,175 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2249
[2023-12-16 19:01:29,175 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:29,176 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:29,205 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2023-12-16 19:01:29,396 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:29,396 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:29,397 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:29,397 INFO  L85        PathProgramCache]: Analyzing trace with hash 649608618, now seen corresponding path program 1 times
[2023-12-16 19:01:29,397 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:29,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771920244]
[2023-12-16 19:01:29,398 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:29,398 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:29,616 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:01:29,617 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1959679368]
[2023-12-16 19:01:29,617 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:29,617 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:29,617 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:01:29,618 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:01:29,641 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-12-16 19:01:31,740 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:31,796 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9866 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:01:31,822 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:32,082 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 16 proven. 231 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2023-12-16 19:01:32,082 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:01:32,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked.
[2023-12-16 19:01:32,146 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:32,146 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771920244]
[2023-12-16 19:01:32,146 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:32,146 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959679368]
[2023-12-16 19:01:32,146 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959679368] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:01:32,146 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:01:32,147 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:01:32,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856094797]
[2023-12-16 19:01:32,147 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:32,149 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:01:32,149 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:32,151 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:01:32,151 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:01:32,152 INFO  L87              Difference]: Start difference. First operand 3474 states and 5788 transitions. Second operand  has 5 states, 5 states have (on average 400.2) internal successors, (2001), 5 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:34,836 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:34,837 INFO  L93              Difference]: Finished difference Result 12093 states and 20078 transitions.
[2023-12-16 19:01:34,837 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:01:34,838 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 400.2) internal successors, (2001), 5 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2248
[2023-12-16 19:01:34,840 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:34,849 INFO  L225             Difference]: With dead ends: 12093
[2023-12-16 19:01:34,849 INFO  L226             Difference]: Without dead ends: 6406
[2023-12-16 19:01:34,855 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4495 GetRequests, 4486 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-16 19:01:34,856 INFO  L413           NwaCegarLoop]: 8832 mSDtfsCounter, 9088 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 4329 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9088 SdHoareTripleChecker+Valid, 21372 SdHoareTripleChecker+Invalid, 4552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 4329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:34,856 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9088 Valid, 21372 Invalid, 4552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 4329 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-16 19:01:34,860 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6406 states.
[2023-12-16 19:01:34,901 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6406 to 3476.
[2023-12-16 19:01:34,905 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3476 states, 3475 states have (on average 1.6661870503597123) internal successors, (5790), 3475 states have internal predecessors, (5790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:34,910 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 5790 transitions.
[2023-12-16 19:01:34,910 INFO  L78                 Accepts]: Start accepts. Automaton has 3476 states and 5790 transitions. Word has length 2248
[2023-12-16 19:01:34,911 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:34,911 INFO  L495      AbstractCegarLoop]: Abstraction has 3476 states and 5790 transitions.
[2023-12-16 19:01:34,912 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 400.2) internal successors, (2001), 5 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:34,912 INFO  L276                IsEmpty]: Start isEmpty. Operand 3476 states and 5790 transitions.
[2023-12-16 19:01:34,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2250
[2023-12-16 19:01:34,942 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:34,943 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:34,970 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-12-16 19:01:35,164 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:35,164 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:35,165 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:35,165 INFO  L85        PathProgramCache]: Analyzing trace with hash -1445773252, now seen corresponding path program 1 times
[2023-12-16 19:01:35,165 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:35,166 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708592215]
[2023-12-16 19:01:35,166 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:35,166 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:35,376 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:01:35,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143581248]
[2023-12-16 19:01:35,377 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:35,377 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:35,377 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:01:35,378 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:01:35,399 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-12-16 19:01:37,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:37,526 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9869 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:01:37,550 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:37,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 231 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2023-12-16 19:01:37,850 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:01:37,916 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-16 19:01:37,916 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:37,916 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708592215]
[2023-12-16 19:01:37,917 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:37,917 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143581248]
[2023-12-16 19:01:37,917 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [143581248] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:01:37,917 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:01:37,917 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:01:37,917 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559827142]
[2023-12-16 19:01:37,917 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:37,919 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:01:37,919 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:37,921 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:01:37,921 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:01:37,921 INFO  L87              Difference]: Start difference. First operand 3476 states and 5790 transitions. Second operand  has 5 states, 5 states have (on average 400.8) internal successors, (2004), 5 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:40,318 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:40,319 INFO  L93              Difference]: Finished difference Result 12101 states and 20086 transitions.
[2023-12-16 19:01:40,319 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:01:40,320 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 400.8) internal successors, (2004), 5 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2249
[2023-12-16 19:01:40,321 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:40,330 INFO  L225             Difference]: With dead ends: 12101
[2023-12-16 19:01:40,330 INFO  L226             Difference]: Without dead ends: 6407
[2023-12-16 19:01:40,336 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4497 GetRequests, 4488 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-16 19:01:40,336 INFO  L413           NwaCegarLoop]: 8824 mSDtfsCounter, 13286 mSDsluCounter, 8555 mSDsCounter, 0 mSdLazyCounter, 3433 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13286 SdHoareTripleChecker+Valid, 17379 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 3433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:40,336 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13286 Valid, 17379 Invalid, 3656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 3433 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2023-12-16 19:01:40,341 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6407 states.
[2023-12-16 19:01:40,379 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6407 to 3478.
[2023-12-16 19:01:40,383 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3478 states, 3477 states have (on average 1.6658038538970377) internal successors, (5792), 3477 states have internal predecessors, (5792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:40,387 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 5792 transitions.
[2023-12-16 19:01:40,387 INFO  L78                 Accepts]: Start accepts. Automaton has 3478 states and 5792 transitions. Word has length 2249
[2023-12-16 19:01:40,388 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:40,389 INFO  L495      AbstractCegarLoop]: Abstraction has 3478 states and 5792 transitions.
[2023-12-16 19:01:40,389 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 400.8) internal successors, (2004), 5 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:40,389 INFO  L276                IsEmpty]: Start isEmpty. Operand 3478 states and 5792 transitions.
[2023-12-16 19:01:40,420 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2251
[2023-12-16 19:01:40,420 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:40,421 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:40,453 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2023-12-16 19:01:40,629 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2023-12-16 19:01:40,629 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:40,630 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:40,630 INFO  L85        PathProgramCache]: Analyzing trace with hash -241154032, now seen corresponding path program 1 times
[2023-12-16 19:01:40,630 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:40,630 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933388127]
[2023-12-16 19:01:40,631 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:40,631 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:40,841 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:01:40,841 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452752960]
[2023-12-16 19:01:40,841 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:40,841 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:40,842 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:01:40,842 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:01:40,865 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-12-16 19:01:42,768 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:42,821 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9872 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:01:42,847 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:43,131 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 20 proven. 231 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2023-12-16 19:01:43,131 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:01:43,199 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked.
[2023-12-16 19:01:43,199 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:43,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933388127]
[2023-12-16 19:01:43,199 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:43,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452752960]
[2023-12-16 19:01:43,199 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [452752960] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:01:43,199 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:01:43,200 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:01:43,200 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914182387]
[2023-12-16 19:01:43,200 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:43,201 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:01:43,201 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:43,203 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:01:43,203 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:01:43,203 INFO  L87              Difference]: Start difference. First operand 3478 states and 5792 transitions. Second operand  has 5 states, 5 states have (on average 401.4) internal successors, (2007), 5 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
Received shutdown request...
[2023-12-16 19:01:44,964 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 19:01:44,964 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4498 GetRequests, 4490 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:01:44,965 INFO  L413           NwaCegarLoop]: 6982 mSDtfsCounter, 9938 mSDsluCounter, 7049 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9938 SdHoareTripleChecker+Valid, 14031 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:44,965 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9938 Valid, 14031 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2023-12-16 19:01:44,966 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-16 19:01:44,974 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 19:01:44,974 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 19:01:44,995 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2023-12-16 19:01:45,188 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2023-12-16 19:01:45,189 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (3478states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (8920 states constructed, input type IntersectNwa).
[2023-12-16 19:01:45,192 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:45,196 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-16 19:01:45,197 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:01:45 BoogieIcfgContainer
[2023-12-16 19:01:45,204 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-16 19:01:45,204 INFO  L158              Benchmark]: Toolchain (without parser) took 56421.30ms. Allocated memory was 324.0MB in the beginning and 2.6GB in the end (delta: 2.2GB). Free memory was 261.2MB in the beginning and 2.1GB in the end (delta: -1.8GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB.
[2023-12-16 19:01:45,205 INFO  L158              Benchmark]: CDTParser took 0.09ms. Allocated memory is still 203.4MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 19:01:45,205 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 798.17ms. Allocated memory is still 324.0MB. Free memory was 260.8MB in the beginning and 206.9MB in the end (delta: 53.9MB). Peak memory consumption was 80.9MB. Max. memory is 8.0GB.
[2023-12-16 19:01:45,206 INFO  L158              Benchmark]: Boogie Procedure Inliner took 860.22ms. Allocated memory was 324.0MB in the beginning and 559.9MB in the end (delta: 235.9MB). Free memory was 206.9MB in the beginning and 336.9MB in the end (delta: -130.0MB). Peak memory consumption was 186.1MB. Max. memory is 8.0GB.
[2023-12-16 19:01:45,206 INFO  L158              Benchmark]: Boogie Preprocessor took 956.85ms. Allocated memory was 559.9MB in the beginning and 1.1GB in the end (delta: 559.9MB). Free memory was 336.9MB in the beginning and 813.5MB in the end (delta: -476.6MB). Peak memory consumption was 84.9MB. Max. memory is 8.0GB.
[2023-12-16 19:01:45,206 INFO  L158              Benchmark]: RCFGBuilder took 6149.71ms. Allocated memory was 1.1GB in the beginning and 2.1GB in the end (delta: 958.4MB). Free memory was 813.5MB in the beginning and 1.4GB in the end (delta: -586.7MB). Peak memory consumption was 559.4MB. Max. memory is 8.0GB.
[2023-12-16 19:01:45,206 INFO  L158              Benchmark]: TraceAbstraction took 47647.21ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 487.6MB). Free memory was 1.4GB in the beginning and 2.1GB in the end (delta: -701.0MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB.
[2023-12-16 19:01:45,210 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.09ms. Allocated memory is still 203.4MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 798.17ms. Allocated memory is still 324.0MB. Free memory was 260.8MB in the beginning and 206.9MB in the end (delta: 53.9MB). Peak memory consumption was 80.9MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 860.22ms. Allocated memory was 324.0MB in the beginning and 559.9MB in the end (delta: 235.9MB). Free memory was 206.9MB in the beginning and 336.9MB in the end (delta: -130.0MB). Peak memory consumption was 186.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 956.85ms. Allocated memory was 559.9MB in the beginning and 1.1GB in the end (delta: 559.9MB). Free memory was 336.9MB in the beginning and 813.5MB in the end (delta: -476.6MB). Peak memory consumption was 84.9MB. Max. memory is 8.0GB.
 * RCFGBuilder took 6149.71ms. Allocated memory was 1.1GB in the beginning and 2.1GB in the end (delta: 958.4MB). Free memory was 813.5MB in the beginning and 1.4GB in the end (delta: -586.7MB). Peak memory consumption was 559.4MB. Max. memory is 8.0GB.
 * TraceAbstraction took 47647.21ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 487.6MB). Free memory was 1.4GB in the beginning and 2.1GB in the end (delta: -701.0MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (3478states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (8920 states constructed, input type IntersectNwa).
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 3071 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.6s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97930 SdHoareTripleChecker+Valid, 14.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97930 mSDsluCounter, 241338 SdHoareTripleChecker+Invalid, 11.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 147251 mSDsCounter, 1241 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21900 IncrementalHoareTripleChecker+Invalid, 23141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1241 mSolverCounterUnsat, 94087 mSDtfsCounter, 21900 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33724 GetRequests, 33648 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3478occurred in iteration=13, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 23474 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.3s SsaConstructionTime, 11.8s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 22010 NumberOfCodeBlocks, 22010 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 35475 ConstructedInterpolants, 0 QuantifiedInterpolants, 40636 SizeOfPredicates, 27 NumberOfNonLiveVariables, 88746 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 2574/3960 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown