/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-16 06:22:42,546 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-16 06:22:42,612 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-16 06:22:42,616 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-16 06:22:42,616 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-16 06:22:42,638 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-16 06:22:42,638 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-16 06:22:42,638 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-16 06:22:42,639 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-16 06:22:42,642 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-16 06:22:42,642 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-16 06:22:42,643 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-16 06:22:42,643 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-16 06:22:42,644 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-16 06:22:42,644 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-16 06:22:42,644 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-16 06:22:42,645 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-16 06:22:42,645 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-16 06:22:42,645 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-16 06:22:42,645 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-16 06:22:42,645 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-16 06:22:42,646 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-16 06:22:42,646 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-16 06:22:42,646 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-16 06:22:42,646 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-16 06:22:42,646 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-16 06:22:42,646 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-16 06:22:42,647 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-16 06:22:42,647 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-16 06:22:42,647 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-16 06:22:42,648 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-16 06:22:42,648 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-16 06:22:42,648 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 06:22:42,648 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-16 06:22:42,648 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-16 06:22:42,649 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-16 06:22:42,649 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-16 06:22:42,649 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-16 06:22:42,649 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-16 06:22:42,649 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-16 06:22:42,649 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-16 06:22:42,649 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-16 06:22:42,650 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-16 06:22:42,650 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-16 06:22:42,837 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-16 06:22:42,853 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-16 06:22:42,855 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-16 06:22:42,855 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-16 06:22:42,856 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-16 06:22:42,856 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c
[2023-12-16 06:22:43,926 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-16 06:22:44,129 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-16 06:22:44,130 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c
[2023-12-16 06:22:44,142 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eed469bc/fb3741e8601d4001ae4d59d6dde3c1df/FLAG066b41873
[2023-12-16 06:22:44,162 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eed469bc/fb3741e8601d4001ae4d59d6dde3c1df
[2023-12-16 06:22:44,164 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-16 06:22:44,165 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-16 06:22:44,168 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-16 06:22:44,168 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-16 06:22:44,171 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-16 06:22:44,172 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,173 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d45a4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44, skipping insertion in model container
[2023-12-16 06:22:44,173 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,227 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-16 06:22:44,402 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473]
[2023-12-16 06:22:44,439 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 06:22:44,462 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-16 06:22:44,495 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473]
[2023-12-16 06:22:44,521 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 06:22:44,534 INFO  L206         MainTranslator]: Completed translation
[2023-12-16 06:22:44,535 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44 WrapperNode
[2023-12-16 06:22:44,535 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-16 06:22:44,536 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-16 06:22:44,536 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-16 06:22:44,536 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-16 06:22:44,540 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,558 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,598 INFO  L138                Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 856
[2023-12-16 06:22:44,598 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-16 06:22:44,599 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-16 06:22:44,599 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-16 06:22:44,599 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-16 06:22:44,607 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,607 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,610 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,623 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 06:22:44,623 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,623 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,631 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,645 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,650 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,652 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,655 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-16 06:22:44,656 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-16 06:22:44,656 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-16 06:22:44,656 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-16 06:22:44,657 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (1/1) ...
[2023-12-16 06:22:44,671 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 06:22:44,681 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 06:22:44,693 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 06:22:44,741 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-16 06:22:44,741 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-16 06:22:44,742 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-16 06:22:44,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-16 06:22:44,736 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 06:22:44,871 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-16 06:22:44,873 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-16 06:22:45,442 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-16 06:22:45,511 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-16 06:22:45,511 INFO  L309             CfgBuilder]: Removed 0 assume(true) statements.
[2023-12-16 06:22:45,511 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:22:45 BoogieIcfgContainer
[2023-12-16 06:22:45,512 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-16 06:22:45,513 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-16 06:22:45,513 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-16 06:22:45,515 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-16 06:22:45,515 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:22:44" (1/3) ...
[2023-12-16 06:22:45,517 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cba92ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:22:45, skipping insertion in model container
[2023-12-16 06:22:45,517 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:44" (2/3) ...
[2023-12-16 06:22:45,518 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cba92ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:22:45, skipping insertion in model container
[2023-12-16 06:22:45,518 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:22:45" (3/3) ...
[2023-12-16 06:22:45,519 INFO  L112   eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c
[2023-12-16 06:22:45,532 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-16 06:22:45,532 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-16 06:22:45,578 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-16 06:22:45,583 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;@4621a7c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-16 06:22:45,584 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-16 06:22:45,589 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 213 states, 211 states have (on average 1.7251184834123223) internal successors, (364), 212 states have internal predecessors, (364), 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 06:22:45,598 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2023-12-16 06:22:45,599 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:45,601 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]
[2023-12-16 06:22:45,602 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:45,607 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:45,608 INFO  L85        PathProgramCache]: Analyzing trace with hash 238097348, now seen corresponding path program 1 times
[2023-12-16 06:22:45,614 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:45,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212875440]
[2023-12-16 06:22:45,614 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:45,615 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:45,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:46,097 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 06:22:46,098 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:46,098 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212875440]
[2023-12-16 06:22:46,098 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212875440] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:46,098 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:46,099 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-16 06:22:46,100 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658629413]
[2023-12-16 06:22:46,100 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:46,108 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 06:22:46,108 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:46,134 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 06:22:46,134 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:22:46,138 INFO  L87              Difference]: Start difference. First operand  has 213 states, 211 states have (on average 1.7251184834123223) internal successors, (364), 212 states have internal predecessors, (364), 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 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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 06:22:46,333 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:46,333 INFO  L93              Difference]: Finished difference Result 859 states and 1394 transitions.
[2023-12-16 06:22:46,335 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-16 06:22:46,336 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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 79
[2023-12-16 06:22:46,336 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:46,352 INFO  L225             Difference]: With dead ends: 859
[2023-12-16 06:22:46,353 INFO  L226             Difference]: Without dead ends: 746
[2023-12-16 06:22:46,355 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2023-12-16 06:22:46,358 INFO  L413           NwaCegarLoop]: 355 mSDtfsCounter, 2365 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2365 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:46,358 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2365 Valid, 2173 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-16 06:22:46,374 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 746 states.
[2023-12-16 06:22:46,404 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 327.
[2023-12-16 06:22:46,406 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 327 states, 326 states have (on average 1.50920245398773) internal successors, (492), 326 states have internal predecessors, (492), 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 06:22:46,407 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 492 transitions.
[2023-12-16 06:22:46,407 INFO  L78                 Accepts]: Start accepts. Automaton has 327 states and 492 transitions. Word has length 79
[2023-12-16 06:22:46,408 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:46,408 INFO  L495      AbstractCegarLoop]: Abstraction has 327 states and 492 transitions.
[2023-12-16 06:22:46,408 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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 06:22:46,408 INFO  L276                IsEmpty]: Start isEmpty. Operand 327 states and 492 transitions.
[2023-12-16 06:22:46,410 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2023-12-16 06:22:46,410 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:46,410 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]
[2023-12-16 06:22:46,410 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-16 06:22:46,410 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:46,411 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:46,411 INFO  L85        PathProgramCache]: Analyzing trace with hash -1488805870, now seen corresponding path program 1 times
[2023-12-16 06:22:46,411 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:46,411 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239722018]
[2023-12-16 06:22:46,411 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:46,412 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:46,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:46,693 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 06:22:46,693 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:46,693 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239722018]
[2023-12-16 06:22:46,693 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239722018] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:46,694 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:46,694 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-16 06:22:46,694 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522470260]
[2023-12-16 06:22:46,694 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:46,696 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 06:22:46,699 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:46,699 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 06:22:46,700 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:22:46,700 INFO  L87              Difference]: Start difference. First operand 327 states and 492 transitions. Second operand  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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 06:22:46,884 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:46,884 INFO  L93              Difference]: Finished difference Result 1423 states and 2209 transitions.
[2023-12-16 06:22:46,884 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-16 06:22:46,884 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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 80
[2023-12-16 06:22:46,885 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:46,888 INFO  L225             Difference]: With dead ends: 1423
[2023-12-16 06:22:46,888 INFO  L226             Difference]: Without dead ends: 1175
[2023-12-16 06:22:46,890 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:22:46,890 INFO  L413           NwaCegarLoop]: 615 mSDtfsCounter, 1499 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:46,891 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1399 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-16 06:22:46,892 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1175 states.
[2023-12-16 06:22:46,911 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1167.
[2023-12-16 06:22:46,913 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1167 states, 1166 states have (on average 1.5480274442538593) internal successors, (1805), 1166 states have internal predecessors, (1805), 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 06:22:46,915 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1805 transitions.
[2023-12-16 06:22:46,915 INFO  L78                 Accepts]: Start accepts. Automaton has 1167 states and 1805 transitions. Word has length 80
[2023-12-16 06:22:46,915 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:46,915 INFO  L495      AbstractCegarLoop]: Abstraction has 1167 states and 1805 transitions.
[2023-12-16 06:22:46,916 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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 06:22:46,916 INFO  L276                IsEmpty]: Start isEmpty. Operand 1167 states and 1805 transitions.
[2023-12-16 06:22:46,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2023-12-16 06:22:46,919 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:46,919 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]
[2023-12-16 06:22:46,919 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-16 06:22:46,919 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:46,920 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:46,920 INFO  L85        PathProgramCache]: Analyzing trace with hash -1568346073, now seen corresponding path program 1 times
[2023-12-16 06:22:46,920 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:46,920 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415980798]
[2023-12-16 06:22:46,920 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:46,920 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:46,943 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:46,995 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 06:22:46,995 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:46,995 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415980798]
[2023-12-16 06:22:46,996 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415980798] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:46,996 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:46,996 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 06:22:46,996 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22011222]
[2023-12-16 06:22:46,996 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:46,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 06:22:46,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:46,997 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 06:22:46,999 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 06:22:46,999 INFO  L87              Difference]: Start difference. First operand 1167 states and 1805 transitions. Second operand  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 06:22:47,197 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:47,198 INFO  L93              Difference]: Finished difference Result 3104 states and 4858 transitions.
[2023-12-16 06:22:47,198 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 06:22:47,198 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 81
[2023-12-16 06:22:47,199 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:47,205 INFO  L225             Difference]: With dead ends: 3104
[2023-12-16 06:22:47,205 INFO  L226             Difference]: Without dead ends: 2017
[2023-12-16 06:22:47,210 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:22:47,212 INFO  L413           NwaCegarLoop]: 177 mSDtfsCounter, 1168 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:47,213 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 296 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-16 06:22:47,215 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2017 states.
[2023-12-16 06:22:47,237 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2015.
[2023-12-16 06:22:47,239 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2015 states, 2014 states have (on average 1.5566037735849056) internal successors, (3135), 2014 states have internal predecessors, (3135), 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 06:22:47,243 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 3135 transitions.
[2023-12-16 06:22:47,244 INFO  L78                 Accepts]: Start accepts. Automaton has 2015 states and 3135 transitions. Word has length 81
[2023-12-16 06:22:47,245 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:47,247 INFO  L495      AbstractCegarLoop]: Abstraction has 2015 states and 3135 transitions.
[2023-12-16 06:22:47,248 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 06:22:47,252 INFO  L276                IsEmpty]: Start isEmpty. Operand 2015 states and 3135 transitions.
[2023-12-16 06:22:47,256 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2023-12-16 06:22:47,256 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:47,256 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]
[2023-12-16 06:22:47,257 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-16 06:22:47,257 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:47,258 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:47,259 INFO  L85        PathProgramCache]: Analyzing trace with hash 945560248, now seen corresponding path program 1 times
[2023-12-16 06:22:47,259 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:47,259 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787933255]
[2023-12-16 06:22:47,259 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:47,259 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:47,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:47,365 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 06:22:47,365 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:47,365 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787933255]
[2023-12-16 06:22:47,365 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787933255] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:47,365 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:47,365 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 06:22:47,365 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109831558]
[2023-12-16 06:22:47,365 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:47,366 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 06:22:47,366 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:47,367 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 06:22:47,367 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 06:22:47,367 INFO  L87              Difference]: Start difference. First operand 2015 states and 3135 transitions. Second operand  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 06:22:47,583 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:47,584 INFO  L93              Difference]: Finished difference Result 5536 states and 8683 transitions.
[2023-12-16 06:22:47,584 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 06:22:47,584 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 81
[2023-12-16 06:22:47,585 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:47,595 INFO  L225             Difference]: With dead ends: 5536
[2023-12-16 06:22:47,595 INFO  L226             Difference]: Without dead ends: 3631
[2023-12-16 06:22:47,597 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:22:47,599 INFO  L413           NwaCegarLoop]: 175 mSDtfsCounter, 1134 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:47,599 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 296 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-16 06:22:47,602 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3631 states.
[2023-12-16 06:22:47,644 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3631 to 3629.
[2023-12-16 06:22:47,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3629 states, 3628 states have (on average 1.5595369349503858) internal successors, (5658), 3628 states have internal predecessors, (5658), 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 06:22:47,657 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 5658 transitions.
[2023-12-16 06:22:47,657 INFO  L78                 Accepts]: Start accepts. Automaton has 3629 states and 5658 transitions. Word has length 81
[2023-12-16 06:22:47,658 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:47,658 INFO  L495      AbstractCegarLoop]: Abstraction has 3629 states and 5658 transitions.
[2023-12-16 06:22:47,658 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 06:22:47,658 INFO  L276                IsEmpty]: Start isEmpty. Operand 3629 states and 5658 transitions.
[2023-12-16 06:22:47,660 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2023-12-16 06:22:47,660 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:47,660 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]
[2023-12-16 06:22:47,660 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-16 06:22:47,661 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:47,661 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:47,661 INFO  L85        PathProgramCache]: Analyzing trace with hash 1454177033, now seen corresponding path program 1 times
[2023-12-16 06:22:47,661 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:47,661 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971152673]
[2023-12-16 06:22:47,662 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:47,662 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:47,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:47,761 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 06:22:47,761 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:47,761 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971152673]
[2023-12-16 06:22:47,762 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971152673] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:47,762 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:47,762 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 06:22:47,762 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911406957]
[2023-12-16 06:22:47,762 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:47,763 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 06:22:47,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:47,763 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 06:22:47,763 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 06:22:47,764 INFO  L87              Difference]: Start difference. First operand 3629 states and 5658 transitions. Second operand  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 06:22:47,944 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:47,944 INFO  L93              Difference]: Finished difference Result 10316 states and 16187 transitions.
[2023-12-16 06:22:47,945 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 06:22:47,945 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 81
[2023-12-16 06:22:47,947 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:47,966 INFO  L225             Difference]: With dead ends: 10316
[2023-12-16 06:22:47,966 INFO  L226             Difference]: Without dead ends: 6831
[2023-12-16 06:22:47,972 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:22:47,972 INFO  L413           NwaCegarLoop]: 179 mSDtfsCounter, 1116 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:47,972 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 307 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-16 06:22:47,977 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6831 states.
[2023-12-16 06:22:48,061 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6831 to 6829.
[2023-12-16 06:22:48,070 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6829 states, 6828 states have (on average 1.5619507908611598) internal successors, (10665), 6828 states have internal predecessors, (10665), 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 06:22:48,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6829 states to 6829 states and 10665 transitions.
[2023-12-16 06:22:48,144 INFO  L78                 Accepts]: Start accepts. Automaton has 6829 states and 10665 transitions. Word has length 81
[2023-12-16 06:22:48,145 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:48,145 INFO  L495      AbstractCegarLoop]: Abstraction has 6829 states and 10665 transitions.
[2023-12-16 06:22:48,145 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 06:22:48,146 INFO  L276                IsEmpty]: Start isEmpty. Operand 6829 states and 10665 transitions.
[2023-12-16 06:22:48,150 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2023-12-16 06:22:48,150 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:48,150 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]
[2023-12-16 06:22:48,150 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-16 06:22:48,150 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:48,152 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:48,152 INFO  L85        PathProgramCache]: Analyzing trace with hash -415106218, now seen corresponding path program 1 times
[2023-12-16 06:22:48,152 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:48,152 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463802713]
[2023-12-16 06:22:48,152 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:48,152 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:48,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:48,245 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 06:22:48,246 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:48,246 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463802713]
[2023-12-16 06:22:48,246 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463802713] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:48,246 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:48,246 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 06:22:48,246 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056140946]
[2023-12-16 06:22:48,246 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:48,247 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 06:22:48,247 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:48,247 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 06:22:48,247 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 06:22:48,248 INFO  L87              Difference]: Start difference. First operand 6829 states and 10665 transitions. Second operand  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 06:22:48,578 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:48,579 INFO  L93              Difference]: Finished difference Result 20143 states and 31539 transitions.
[2023-12-16 06:22:48,579 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 06:22:48,579 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 81
[2023-12-16 06:22:48,579 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:48,623 INFO  L225             Difference]: With dead ends: 20143
[2023-12-16 06:22:48,623 INFO  L226             Difference]: Without dead ends: 13371
[2023-12-16 06:22:48,628 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:22:48,630 INFO  L413           NwaCegarLoop]: 177 mSDtfsCounter, 1182 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:48,630 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 294 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-16 06:22:48,640 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13371 states.
[2023-12-16 06:22:48,799 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13371 to 13369.
[2023-12-16 06:22:48,829 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13369 states, 13368 states have (on average 1.5567025733093955) internal successors, (20810), 13368 states have internal predecessors, (20810), 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 06:22:48,872 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 20810 transitions.
[2023-12-16 06:22:48,872 INFO  L78                 Accepts]: Start accepts. Automaton has 13369 states and 20810 transitions. Word has length 81
[2023-12-16 06:22:48,872 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:48,873 INFO  L495      AbstractCegarLoop]: Abstraction has 13369 states and 20810 transitions.
[2023-12-16 06:22:48,873 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 06:22:48,873 INFO  L276                IsEmpty]: Start isEmpty. Operand 13369 states and 20810 transitions.
[2023-12-16 06:22:48,876 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2023-12-16 06:22:48,876 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:48,876 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]
[2023-12-16 06:22:48,876 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-12-16 06:22:48,876 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:48,877 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:48,877 INFO  L85        PathProgramCache]: Analyzing trace with hash 1656601669, now seen corresponding path program 1 times
[2023-12-16 06:22:48,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:48,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930982947]
[2023-12-16 06:22:48,877 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:48,877 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:48,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:49,035 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 06:22:49,035 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:49,036 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930982947]
[2023-12-16 06:22:49,036 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930982947] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:49,036 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:49,036 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 06:22:49,036 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645115920]
[2023-12-16 06:22:49,036 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:49,036 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 06:22:49,036 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:49,037 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 06:22:49,037 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 06:22:49,037 INFO  L87              Difference]: Start difference. First operand 13369 states and 20810 transitions. Second operand  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 06:22:49,320 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:49,320 INFO  L93              Difference]: Finished difference Result 39776 states and 61995 transitions.
[2023-12-16 06:22:49,321 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 06:22:49,321 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 81
[2023-12-16 06:22:49,321 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:49,375 INFO  L225             Difference]: With dead ends: 39776
[2023-12-16 06:22:49,375 INFO  L226             Difference]: Without dead ends: 26448
[2023-12-16 06:22:49,398 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:22:49,400 INFO  L413           NwaCegarLoop]: 175 mSDtfsCounter, 1210 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:49,400 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 290 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-16 06:22:49,424 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26448 states.
[2023-12-16 06:22:49,844 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26448 to 26446.
[2023-12-16 06:22:49,890 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26446 states, 26445 states have (on average 1.5480809226696919) internal successors, (40939), 26445 states have internal predecessors, (40939), 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 06:22:49,993 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26446 states to 26446 states and 40939 transitions.
[2023-12-16 06:22:49,993 INFO  L78                 Accepts]: Start accepts. Automaton has 26446 states and 40939 transitions. Word has length 81
[2023-12-16 06:22:49,993 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:49,993 INFO  L495      AbstractCegarLoop]: Abstraction has 26446 states and 40939 transitions.
[2023-12-16 06:22:49,994 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 06:22:49,994 INFO  L276                IsEmpty]: Start isEmpty. Operand 26446 states and 40939 transitions.
[2023-12-16 06:22:50,002 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2023-12-16 06:22:50,002 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:50,002 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]
[2023-12-16 06:22:50,002 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-12-16 06:22:50,003 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:50,003 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:50,003 INFO  L85        PathProgramCache]: Analyzing trace with hash 1146010974, now seen corresponding path program 1 times
[2023-12-16 06:22:50,003 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:50,003 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274623638]
[2023-12-16 06:22:50,003 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:50,003 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:50,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:50,184 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 06:22:50,185 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:50,185 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274623638]
[2023-12-16 06:22:50,185 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274623638] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:50,185 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:50,185 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-16 06:22:50,185 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948936958]
[2023-12-16 06:22:50,185 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:50,186 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 06:22:50,186 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:50,186 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 06:22:50,186 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 06:22:50,186 INFO  L87              Difference]: Start difference. First operand 26446 states and 40939 transitions. Second operand  has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 06:22:50,419 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:50,419 INFO  L93              Difference]: Finished difference Result 52688 states and 81292 transitions.
[2023-12-16 06:22:50,423 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 06:22:50,423 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 82
[2023-12-16 06:22:50,423 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:50,519 INFO  L225             Difference]: With dead ends: 52688
[2023-12-16 06:22:50,519 INFO  L226             Difference]: Without dead ends: 52686
[2023-12-16 06:22:50,534 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-16 06:22:50,535 INFO  L413           NwaCegarLoop]: 326 mSDtfsCounter, 304 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:50,535 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1232 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 06:22:50,566 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52686 states.
[2023-12-16 06:22:51,033 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52686 to 27086.
[2023-12-16 06:22:51,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27086 states, 27085 states have (on average 1.5351301458371793) internal successors, (41579), 27085 states have internal predecessors, (41579), 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 06:22:51,198 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27086 states to 27086 states and 41579 transitions.
[2023-12-16 06:22:51,198 INFO  L78                 Accepts]: Start accepts. Automaton has 27086 states and 41579 transitions. Word has length 82
[2023-12-16 06:22:51,198 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:51,198 INFO  L495      AbstractCegarLoop]: Abstraction has 27086 states and 41579 transitions.
[2023-12-16 06:22:51,199 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 06:22:51,199 INFO  L276                IsEmpty]: Start isEmpty. Operand 27086 states and 41579 transitions.
[2023-12-16 06:22:51,203 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2023-12-16 06:22:51,203 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:51,203 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]
[2023-12-16 06:22:51,203 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-12-16 06:22:51,203 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:51,204 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:51,204 INFO  L85        PathProgramCache]: Analyzing trace with hash 1446008994, now seen corresponding path program 1 times
[2023-12-16 06:22:51,204 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:51,204 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264295749]
[2023-12-16 06:22:51,204 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:51,204 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:51,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:51,471 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 06:22:51,471 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:51,471 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264295749]
[2023-12-16 06:22:51,471 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264295749] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:51,471 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:51,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-16 06:22:51,472 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122090613]
[2023-12-16 06:22:51,472 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:51,472 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-16 06:22:51,472 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:51,526 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-16 06:22:51,526 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-12-16 06:22:51,526 INFO  L87              Difference]: Start difference. First operand 27086 states and 41579 transitions. Second operand  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:22:52,981 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:52,981 INFO  L93              Difference]: Finished difference Result 119757 states and 182390 transitions.
[2023-12-16 06:22:52,982 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2023-12-16 06:22:52,982 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 83
[2023-12-16 06:22:52,982 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:53,170 INFO  L225             Difference]: With dead ends: 119757
[2023-12-16 06:22:53,171 INFO  L226             Difference]: Without dead ends: 105445
[2023-12-16 06:22:53,227 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600
[2023-12-16 06:22:53,229 INFO  L413           NwaCegarLoop]: 272 mSDtfsCounter, 2106 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:53,229 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 1776 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-16 06:22:53,315 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 105445 states.
[2023-12-16 06:22:54,245 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 105445 to 27379.
[2023-12-16 06:22:54,272 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27379 states, 27378 states have (on average 1.5334209949594566) internal successors, (41982), 27378 states have internal predecessors, (41982), 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 06:22:54,312 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27379 states to 27379 states and 41982 transitions.
[2023-12-16 06:22:54,312 INFO  L78                 Accepts]: Start accepts. Automaton has 27379 states and 41982 transitions. Word has length 83
[2023-12-16 06:22:54,312 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:54,312 INFO  L495      AbstractCegarLoop]: Abstraction has 27379 states and 41982 transitions.
[2023-12-16 06:22:54,312 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:22:54,313 INFO  L276                IsEmpty]: Start isEmpty. Operand 27379 states and 41982 transitions.
[2023-12-16 06:22:54,318 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2023-12-16 06:22:54,318 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:54,318 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]
[2023-12-16 06:22:54,318 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-12-16 06:22:54,318 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:54,319 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:54,319 INFO  L85        PathProgramCache]: Analyzing trace with hash -1513368446, now seen corresponding path program 1 times
[2023-12-16 06:22:54,319 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:54,319 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207298965]
[2023-12-16 06:22:54,319 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:54,319 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:54,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:54,663 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 06:22:54,663 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:54,663 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207298965]
[2023-12-16 06:22:54,663 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207298965] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:54,664 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:54,664 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-16 06:22:54,664 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000382393]
[2023-12-16 06:22:54,664 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:54,664 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-16 06:22:54,664 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:54,664 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-16 06:22:54,665 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-12-16 06:22:54,665 INFO  L87              Difference]: Start difference. First operand 27379 states and 41982 transitions. Second operand  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:22:56,348 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:56,348 INFO  L93              Difference]: Finished difference Result 98827 states and 149935 transitions.
[2023-12-16 06:22:56,349 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-16 06:22:56,349 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 83
[2023-12-16 06:22:56,349 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:56,469 INFO  L225             Difference]: With dead ends: 98827
[2023-12-16 06:22:56,469 INFO  L226             Difference]: Without dead ends: 89993
[2023-12-16 06:22:56,502 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650
[2023-12-16 06:22:56,503 INFO  L413           NwaCegarLoop]: 351 mSDtfsCounter, 1842 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:56,504 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 2484 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2023-12-16 06:22:56,568 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89993 states.
[2023-12-16 06:22:57,401 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89993 to 27915.
[2023-12-16 06:22:57,428 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27915 states, 27914 states have (on average 1.5315970480762342) internal successors, (42753), 27914 states have internal predecessors, (42753), 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 06:22:57,466 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27915 states to 27915 states and 42753 transitions.
[2023-12-16 06:22:57,466 INFO  L78                 Accepts]: Start accepts. Automaton has 27915 states and 42753 transitions. Word has length 83
[2023-12-16 06:22:57,466 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:57,467 INFO  L495      AbstractCegarLoop]: Abstraction has 27915 states and 42753 transitions.
[2023-12-16 06:22:57,467 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:22:57,467 INFO  L276                IsEmpty]: Start isEmpty. Operand 27915 states and 42753 transitions.
[2023-12-16 06:22:57,473 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2023-12-16 06:22:57,473 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:57,473 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]
[2023-12-16 06:22:57,473 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-12-16 06:22:57,474 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:57,474 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:57,474 INFO  L85        PathProgramCache]: Analyzing trace with hash -2116249502, now seen corresponding path program 1 times
[2023-12-16 06:22:57,474 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:57,474 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561836997]
[2023-12-16 06:22:57,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:57,474 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:57,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:57,670 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 06:22:57,670 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:57,670 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561836997]
[2023-12-16 06:22:57,670 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561836997] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:57,670 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:57,670 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-16 06:22:57,670 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211023428]
[2023-12-16 06:22:57,670 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:57,671 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-16 06:22:57,671 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:57,671 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-16 06:22:57,671 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2023-12-16 06:22:57,671 INFO  L87              Difference]: Start difference. First operand 27915 states and 42753 transitions. Second operand  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:22:58,875 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:22:58,875 INFO  L93              Difference]: Finished difference Result 71014 states and 108103 transitions.
[2023-12-16 06:22:58,876 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2023-12-16 06:22:58,876 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 83
[2023-12-16 06:22:58,876 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:22:58,981 INFO  L225             Difference]: With dead ends: 71014
[2023-12-16 06:22:58,981 INFO  L226             Difference]: Without dead ends: 67707
[2023-12-16 06:22:59,007 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650
[2023-12-16 06:22:59,008 INFO  L413           NwaCegarLoop]: 311 mSDtfsCounter, 2008 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2008 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-16 06:22:59,008 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2008 Valid, 1630 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-16 06:22:59,054 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 67707 states.
[2023-12-16 06:22:59,536 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 67707 to 27915.
[2023-12-16 06:22:59,561 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27915 states, 27914 states have (on average 1.531453750806047) internal successors, (42749), 27914 states have internal predecessors, (42749), 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 06:22:59,601 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27915 states to 27915 states and 42749 transitions.
[2023-12-16 06:22:59,601 INFO  L78                 Accepts]: Start accepts. Automaton has 27915 states and 42749 transitions. Word has length 83
[2023-12-16 06:22:59,601 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:22:59,601 INFO  L495      AbstractCegarLoop]: Abstraction has 27915 states and 42749 transitions.
[2023-12-16 06:22:59,602 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:22:59,602 INFO  L276                IsEmpty]: Start isEmpty. Operand 27915 states and 42749 transitions.
[2023-12-16 06:22:59,607 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2023-12-16 06:22:59,607 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:22:59,608 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]
[2023-12-16 06:22:59,608 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-12-16 06:22:59,608 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:22:59,608 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:22:59,608 INFO  L85        PathProgramCache]: Analyzing trace with hash 1194992834, now seen corresponding path program 1 times
[2023-12-16 06:22:59,608 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:22:59,608 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163205262]
[2023-12-16 06:22:59,608 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:22:59,609 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:22:59,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:22:59,951 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 06:22:59,951 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:22:59,951 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163205262]
[2023-12-16 06:22:59,951 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163205262] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:22:59,951 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:22:59,951 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-16 06:22:59,952 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103302754]
[2023-12-16 06:22:59,952 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:22:59,952 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-16 06:22:59,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:22:59,952 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-16 06:22:59,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-12-16 06:22:59,953 INFO  L87              Difference]: Start difference. First operand 27915 states and 42749 transitions. Second operand  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:23:01,492 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:01,493 INFO  L93              Difference]: Finished difference Result 136180 states and 206919 transitions.
[2023-12-16 06:23:01,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2023-12-16 06:23:01,493 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 83
[2023-12-16 06:23:01,493 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:01,667 INFO  L225             Difference]: With dead ends: 136180
[2023-12-16 06:23:01,668 INFO  L226             Difference]: Without dead ends: 116461
[2023-12-16 06:23:01,717 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600
[2023-12-16 06:23:01,718 INFO  L413           NwaCegarLoop]: 330 mSDtfsCounter, 1944 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:01,718 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 2051 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-16 06:23:01,796 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 116461 states.
[2023-12-16 06:23:02,791 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 116461 to 28332.
[2023-12-16 06:23:02,815 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28332 states, 28331 states have (on average 1.5279375948607532) internal successors, (43288), 28331 states have internal predecessors, (43288), 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 06:23:02,853 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28332 states to 28332 states and 43288 transitions.
[2023-12-16 06:23:02,853 INFO  L78                 Accepts]: Start accepts. Automaton has 28332 states and 43288 transitions. Word has length 83
[2023-12-16 06:23:02,853 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:02,854 INFO  L495      AbstractCegarLoop]: Abstraction has 28332 states and 43288 transitions.
[2023-12-16 06:23:02,854 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:23:02,854 INFO  L276                IsEmpty]: Start isEmpty. Operand 28332 states and 43288 transitions.
[2023-12-16 06:23:02,860 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2023-12-16 06:23:02,860 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:02,860 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]
[2023-12-16 06:23:02,860 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-12-16 06:23:02,860 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:02,860 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:02,861 INFO  L85        PathProgramCache]: Analyzing trace with hash 1796815074, now seen corresponding path program 1 times
[2023-12-16 06:23:02,861 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:02,861 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419994129]
[2023-12-16 06:23:02,861 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:02,861 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:02,982 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:03,239 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 06:23:03,240 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:03,240 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419994129]
[2023-12-16 06:23:03,240 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419994129] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:03,240 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:03,240 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-16 06:23:03,240 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144263334]
[2023-12-16 06:23:03,240 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:03,240 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-16 06:23:03,240 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:03,241 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-16 06:23:03,241 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-12-16 06:23:03,241 INFO  L87              Difference]: Start difference. First operand 28332 states and 43288 transitions. Second operand  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:23:04,939 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:04,939 INFO  L93              Difference]: Finished difference Result 132775 states and 201357 transitions.
[2023-12-16 06:23:04,940 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2023-12-16 06:23:04,940 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 83
[2023-12-16 06:23:04,940 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:05,082 INFO  L225             Difference]: With dead ends: 132775
[2023-12-16 06:23:05,082 INFO  L226             Difference]: Without dead ends: 105885
[2023-12-16 06:23:05,114 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600
[2023-12-16 06:23:05,115 INFO  L413           NwaCegarLoop]: 343 mSDtfsCounter, 1872 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:05,115 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 2358 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-12-16 06:23:05,179 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 105885 states.
[2023-12-16 06:23:05,998 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 105885 to 28691.
[2023-12-16 06:23:06,023 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28691 states, 28690 states have (on average 1.5231439525967236) internal successors, (43699), 28690 states have internal predecessors, (43699), 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 06:23:06,060 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28691 states to 28691 states and 43699 transitions.
[2023-12-16 06:23:06,060 INFO  L78                 Accepts]: Start accepts. Automaton has 28691 states and 43699 transitions. Word has length 83
[2023-12-16 06:23:06,061 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:06,061 INFO  L495      AbstractCegarLoop]: Abstraction has 28691 states and 43699 transitions.
[2023-12-16 06:23:06,061 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:23:06,061 INFO  L276                IsEmpty]: Start isEmpty. Operand 28691 states and 43699 transitions.
[2023-12-16 06:23:06,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2023-12-16 06:23:06,067 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:06,067 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]
[2023-12-16 06:23:06,067 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-12-16 06:23:06,067 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:06,068 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:06,068 INFO  L85        PathProgramCache]: Analyzing trace with hash -1075536573, now seen corresponding path program 1 times
[2023-12-16 06:23:06,068 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:06,068 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802813133]
[2023-12-16 06:23:06,068 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:06,068 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:06,078 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:06,098 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 06:23:06,099 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:06,099 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802813133]
[2023-12-16 06:23:06,099 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802813133] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:06,099 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:06,099 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 06:23:06,099 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237740065]
[2023-12-16 06:23:06,099 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:06,099 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 06:23:06,099 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:06,100 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 06:23:06,100 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 06:23:06,100 INFO  L87              Difference]: Start difference. First operand 28691 states and 43699 transitions. Second operand  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 06:23:06,196 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:06,196 INFO  L93              Difference]: Finished difference Result 45193 states and 68999 transitions.
[2023-12-16 06:23:06,197 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 06:23:06,197 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84
[2023-12-16 06:23:06,197 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:06,238 INFO  L225             Difference]: With dead ends: 45193
[2023-12-16 06:23:06,238 INFO  L226             Difference]: Without dead ends: 33451
[2023-12-16 06:23:06,256 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 06:23:06,257 INFO  L413           NwaCegarLoop]: 322 mSDtfsCounter, 182 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:06,257 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 594 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 06:23:06,277 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33451 states.
[2023-12-16 06:23:06,658 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33451 to 33165.
[2023-12-16 06:23:06,689 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33165 states, 33164 states have (on average 1.5073272222892293) internal successors, (49989), 33164 states have internal predecessors, (49989), 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 06:23:06,739 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33165 states to 33165 states and 49989 transitions.
[2023-12-16 06:23:06,739 INFO  L78                 Accepts]: Start accepts. Automaton has 33165 states and 49989 transitions. Word has length 84
[2023-12-16 06:23:06,740 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:06,740 INFO  L495      AbstractCegarLoop]: Abstraction has 33165 states and 49989 transitions.
[2023-12-16 06:23:06,740 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 06:23:06,740 INFO  L276                IsEmpty]: Start isEmpty. Operand 33165 states and 49989 transitions.
[2023-12-16 06:23:06,746 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2023-12-16 06:23:06,747 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:06,747 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]
[2023-12-16 06:23:06,747 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-12-16 06:23:06,747 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:06,747 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:06,747 INFO  L85        PathProgramCache]: Analyzing trace with hash 1401966641, now seen corresponding path program 1 times
[2023-12-16 06:23:06,748 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:06,748 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7706598]
[2023-12-16 06:23:06,748 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:06,748 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:06,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:06,840 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 06:23:06,841 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:06,841 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7706598]
[2023-12-16 06:23:06,841 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7706598] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:06,841 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:06,841 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 06:23:06,841 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626994032]
[2023-12-16 06:23:06,841 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:06,841 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 06:23:06,842 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:06,842 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 06:23:06,842 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 06:23:06,842 INFO  L87              Difference]: Start difference. First operand 33165 states and 49989 transitions. Second operand  has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 06:23:07,258 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:07,258 INFO  L93              Difference]: Finished difference Result 91097 states and 137551 transitions.
[2023-12-16 06:23:07,259 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 06:23:07,259 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 84
[2023-12-16 06:23:07,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:07,334 INFO  L225             Difference]: With dead ends: 91097
[2023-12-16 06:23:07,334 INFO  L226             Difference]: Without dead ends: 60279
[2023-12-16 06:23:07,359 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 06:23:07,360 INFO  L413           NwaCegarLoop]: 289 mSDtfsCounter, 202 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:07,360 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 727 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 06:23:07,398 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60279 states.
[2023-12-16 06:23:07,990 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60279 to 59909.
[2023-12-16 06:23:08,041 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59909 states, 59908 states have (on average 1.4955765507110903) internal successors, (89597), 59908 states have internal predecessors, (89597), 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 06:23:08,128 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59909 states to 59909 states and 89597 transitions.
[2023-12-16 06:23:08,129 INFO  L78                 Accepts]: Start accepts. Automaton has 59909 states and 89597 transitions. Word has length 84
[2023-12-16 06:23:08,129 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:08,129 INFO  L495      AbstractCegarLoop]: Abstraction has 59909 states and 89597 transitions.
[2023-12-16 06:23:08,129 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 06:23:08,129 INFO  L276                IsEmpty]: Start isEmpty. Operand 59909 states and 89597 transitions.
[2023-12-16 06:23:08,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2023-12-16 06:23:08,135 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:08,135 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]
[2023-12-16 06:23:08,135 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-12-16 06:23:08,135 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:08,136 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:08,136 INFO  L85        PathProgramCache]: Analyzing trace with hash -1298454314, now seen corresponding path program 1 times
[2023-12-16 06:23:08,136 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:08,136 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577642839]
[2023-12-16 06:23:08,136 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:08,136 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:08,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:08,394 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 06:23:08,394 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:08,394 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577642839]
[2023-12-16 06:23:08,396 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577642839] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:08,396 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:08,396 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 06:23:08,396 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339617866]
[2023-12-16 06:23:08,396 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:08,396 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 06:23:08,396 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:08,397 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 06:23:08,397 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 06:23:08,397 INFO  L87              Difference]: Start difference. First operand 59909 states and 89597 transitions. Second operand  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 06:23:08,626 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:08,626 INFO  L93              Difference]: Finished difference Result 77864 states and 116221 transitions.
[2023-12-16 06:23:08,627 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 06:23:08,627 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84
[2023-12-16 06:23:08,627 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:08,714 INFO  L225             Difference]: With dead ends: 77864
[2023-12-16 06:23:08,714 INFO  L226             Difference]: Without dead ends: 61418
[2023-12-16 06:23:08,746 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 06:23:08,758 INFO  L413           NwaCegarLoop]: 299 mSDtfsCounter, 174 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:08,760 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 571 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 06:23:08,803 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61418 states.
[2023-12-16 06:23:09,502 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61418 to 56368.
[2023-12-16 06:23:09,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56368 states, 56367 states have (on average 1.4750651977220715) internal successors, (83145), 56367 states have internal predecessors, (83145), 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 06:23:09,822 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56368 states to 56368 states and 83145 transitions.
[2023-12-16 06:23:09,822 INFO  L78                 Accepts]: Start accepts. Automaton has 56368 states and 83145 transitions. Word has length 84
[2023-12-16 06:23:09,822 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:09,823 INFO  L495      AbstractCegarLoop]: Abstraction has 56368 states and 83145 transitions.
[2023-12-16 06:23:09,823 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 06:23:09,823 INFO  L276                IsEmpty]: Start isEmpty. Operand 56368 states and 83145 transitions.
[2023-12-16 06:23:09,828 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2023-12-16 06:23:09,828 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:09,829 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]
[2023-12-16 06:23:09,829 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-12-16 06:23:09,829 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:09,830 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:09,830 INFO  L85        PathProgramCache]: Analyzing trace with hash 335873668, now seen corresponding path program 1 times
[2023-12-16 06:23:09,831 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:09,831 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088244417]
[2023-12-16 06:23:09,831 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:09,831 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:09,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:09,884 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 06:23:09,884 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:09,884 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088244417]
[2023-12-16 06:23:09,884 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088244417] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:09,884 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:09,884 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 06:23:09,884 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415025076]
[2023-12-16 06:23:09,884 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:09,885 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 06:23:09,885 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:09,885 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 06:23:09,885 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 06:23:09,885 INFO  L87              Difference]: Start difference. First operand 56368 states and 83145 transitions. Second operand  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 06:23:10,205 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:10,205 INFO  L93              Difference]: Finished difference Result 145971 states and 215810 transitions.
[2023-12-16 06:23:10,206 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 06:23:10,206 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84
[2023-12-16 06:23:10,206 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:10,332 INFO  L225             Difference]: With dead ends: 145971
[2023-12-16 06:23:10,332 INFO  L226             Difference]: Without dead ends: 97794
[2023-12-16 06:23:10,385 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 06:23:10,386 INFO  L413           NwaCegarLoop]: 290 mSDtfsCounter, 211 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:10,387 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 560 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 06:23:10,720 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 97794 states.
[2023-12-16 06:23:11,791 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 97794 to 97640.
[2023-12-16 06:23:11,913 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97640 states, 97639 states have (on average 1.4680301928532655) internal successors, (143337), 97639 states have internal predecessors, (143337), 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 06:23:12,120 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97640 states to 97640 states and 143337 transitions.
[2023-12-16 06:23:12,121 INFO  L78                 Accepts]: Start accepts. Automaton has 97640 states and 143337 transitions. Word has length 84
[2023-12-16 06:23:12,121 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:12,121 INFO  L495      AbstractCegarLoop]: Abstraction has 97640 states and 143337 transitions.
[2023-12-16 06:23:12,136 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 06:23:12,136 INFO  L276                IsEmpty]: Start isEmpty. Operand 97640 states and 143337 transitions.
[2023-12-16 06:23:12,148 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2023-12-16 06:23:12,148 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:12,148 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]
[2023-12-16 06:23:12,148 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-12-16 06:23:12,148 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:12,149 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:12,149 INFO  L85        PathProgramCache]: Analyzing trace with hash -1506222844, now seen corresponding path program 1 times
[2023-12-16 06:23:12,149 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:12,149 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219953906]
[2023-12-16 06:23:12,149 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:12,149 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:12,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:12,198 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 06:23:12,199 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:12,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219953906]
[2023-12-16 06:23:12,199 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219953906] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:12,199 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:12,199 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 06:23:12,199 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471145553]
[2023-12-16 06:23:12,199 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:12,199 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 06:23:12,200 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:12,200 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 06:23:12,200 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 06:23:12,200 INFO  L87              Difference]: Start difference. First operand 97640 states and 143337 transitions. Second operand  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 06:23:13,250 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:13,251 INFO  L93              Difference]: Finished difference Result 187608 states and 275403 transitions.
[2023-12-16 06:23:13,251 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 06:23:13,251 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84
[2023-12-16 06:23:13,253 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:13,425 INFO  L225             Difference]: With dead ends: 187608
[2023-12-16 06:23:13,425 INFO  L226             Difference]: Without dead ends: 116802
[2023-12-16 06:23:13,508 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 06:23:13,508 INFO  L413           NwaCegarLoop]: 399 mSDtfsCounter, 188 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:13,508 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 668 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 06:23:13,591 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 116802 states.
[2023-12-16 06:23:14,959 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 116802 to 115752.
[2023-12-16 06:23:15,025 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115752 states, 115751 states have (on average 1.443339582379418) internal successors, (167068), 115751 states have internal predecessors, (167068), 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 06:23:15,232 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115752 states to 115752 states and 167068 transitions.
[2023-12-16 06:23:15,232 INFO  L78                 Accepts]: Start accepts. Automaton has 115752 states and 167068 transitions. Word has length 84
[2023-12-16 06:23:15,232 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:15,232 INFO  L495      AbstractCegarLoop]: Abstraction has 115752 states and 167068 transitions.
[2023-12-16 06:23:15,233 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 06:23:15,233 INFO  L276                IsEmpty]: Start isEmpty. Operand 115752 states and 167068 transitions.
[2023-12-16 06:23:15,242 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2023-12-16 06:23:15,242 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:15,242 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]
[2023-12-16 06:23:15,242 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-12-16 06:23:15,242 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:15,243 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:15,243 INFO  L85        PathProgramCache]: Analyzing trace with hash 2020876259, now seen corresponding path program 1 times
[2023-12-16 06:23:15,243 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:15,243 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645034630]
[2023-12-16 06:23:15,243 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:15,243 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:15,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:15,280 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 06:23:15,281 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:15,281 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645034630]
[2023-12-16 06:23:15,281 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645034630] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:15,281 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:15,281 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 06:23:15,281 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348809259]
[2023-12-16 06:23:15,281 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:15,282 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 06:23:15,282 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:15,283 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 06:23:15,283 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 06:23:15,283 INFO  L87              Difference]: Start difference. First operand 115752 states and 167068 transitions. Second operand  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 06:23:16,284 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:16,284 INFO  L93              Difference]: Finished difference Result 245738 states and 353728 transitions.
[2023-12-16 06:23:16,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 06:23:16,285 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84
[2023-12-16 06:23:16,285 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:16,544 INFO  L225             Difference]: With dead ends: 245738
[2023-12-16 06:23:16,544 INFO  L226             Difference]: Without dead ends: 139408
[2023-12-16 06:23:16,664 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 06:23:16,664 INFO  L413           NwaCegarLoop]: 290 mSDtfsCounter, 201 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:16,665 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 558 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 06:23:16,760 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 139408 states.
[2023-12-16 06:23:18,243 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 139408 to 138470.
[2023-12-16 06:23:18,348 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 138470 states, 138469 states have (on average 1.4137243715199792) internal successors, (195757), 138469 states have internal predecessors, (195757), 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 06:23:18,623 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 138470 states to 138470 states and 195757 transitions.
[2023-12-16 06:23:18,624 INFO  L78                 Accepts]: Start accepts. Automaton has 138470 states and 195757 transitions. Word has length 84
[2023-12-16 06:23:18,624 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:18,624 INFO  L495      AbstractCegarLoop]: Abstraction has 138470 states and 195757 transitions.
[2023-12-16 06:23:18,624 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 06:23:18,624 INFO  L276                IsEmpty]: Start isEmpty. Operand 138470 states and 195757 transitions.
[2023-12-16 06:23:18,634 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-16 06:23:18,634 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:18,634 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]
[2023-12-16 06:23:18,635 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-12-16 06:23:18,635 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:18,635 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:18,635 INFO  L85        PathProgramCache]: Analyzing trace with hash 782936475, now seen corresponding path program 1 times
[2023-12-16 06:23:18,635 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:18,635 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260059922]
[2023-12-16 06:23:18,635 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:18,635 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:18,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:18,746 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 06:23:18,746 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:18,746 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260059922]
[2023-12-16 06:23:18,746 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260059922] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:18,746 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:18,746 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-16 06:23:18,746 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487626588]
[2023-12-16 06:23:18,747 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:18,747 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 06:23:18,747 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:18,747 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 06:23:18,747 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:23:18,747 INFO  L87              Difference]: Start difference. First operand 138470 states and 195757 transitions. Second operand  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:20,286 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:20,286 INFO  L93              Difference]: Finished difference Result 331715 states and 472779 transitions.
[2023-12-16 06:23:20,287 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-16 06:23:20,287 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85
[2023-12-16 06:23:20,287 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:20,781 INFO  L225             Difference]: With dead ends: 331715
[2023-12-16 06:23:20,781 INFO  L226             Difference]: Without dead ends: 281808
[2023-12-16 06:23:20,855 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2023-12-16 06:23:20,857 INFO  L413           NwaCegarLoop]: 450 mSDtfsCounter, 1769 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:20,857 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 1707 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-16 06:23:21,079 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 281808 states.
[2023-12-16 06:23:23,663 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 281808 to 187766.
[2023-12-16 06:23:23,910 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 187766 states, 187765 states have (on average 1.414203925119165) internal successors, (265538), 187765 states have internal predecessors, (265538), 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 06:23:24,359 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 187766 states to 187766 states and 265538 transitions.
[2023-12-16 06:23:24,360 INFO  L78                 Accepts]: Start accepts. Automaton has 187766 states and 265538 transitions. Word has length 85
[2023-12-16 06:23:24,360 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:24,360 INFO  L495      AbstractCegarLoop]: Abstraction has 187766 states and 265538 transitions.
[2023-12-16 06:23:24,360 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:24,360 INFO  L276                IsEmpty]: Start isEmpty. Operand 187766 states and 265538 transitions.
[2023-12-16 06:23:24,367 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-16 06:23:24,367 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:24,367 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]
[2023-12-16 06:23:24,367 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-12-16 06:23:24,368 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:24,368 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:24,368 INFO  L85        PathProgramCache]: Analyzing trace with hash 1882709334, now seen corresponding path program 1 times
[2023-12-16 06:23:24,368 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:24,368 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947752941]
[2023-12-16 06:23:24,368 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:24,368 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:24,378 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:24,437 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 06:23:24,437 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:24,437 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947752941]
[2023-12-16 06:23:24,438 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947752941] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:24,438 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:24,438 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-16 06:23:24,438 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431845034]
[2023-12-16 06:23:24,438 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:24,438 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 06:23:24,438 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:24,438 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 06:23:24,438 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:23:24,439 INFO  L87              Difference]: Start difference. First operand 187766 states and 265538 transitions. Second operand  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:26,004 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:26,005 INFO  L93              Difference]: Finished difference Result 346408 states and 492955 transitions.
[2023-12-16 06:23:26,005 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-16 06:23:26,005 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85
[2023-12-16 06:23:26,005 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:26,765 INFO  L225             Difference]: With dead ends: 346408
[2023-12-16 06:23:26,765 INFO  L226             Difference]: Without dead ends: 313889
[2023-12-16 06:23:26,918 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2023-12-16 06:23:26,918 INFO  L413           NwaCegarLoop]: 439 mSDtfsCounter, 1866 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:26,919 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 1710 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-16 06:23:27,166 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 313889 states.
[2023-12-16 06:23:30,082 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 313889 to 208203.
[2023-12-16 06:23:30,354 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 208203 states, 208202 states have (on average 1.415879770607391) internal successors, (294789), 208202 states have internal predecessors, (294789), 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 06:23:30,996 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 208203 states to 208203 states and 294789 transitions.
[2023-12-16 06:23:30,997 INFO  L78                 Accepts]: Start accepts. Automaton has 208203 states and 294789 transitions. Word has length 85
[2023-12-16 06:23:30,997 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:30,997 INFO  L495      AbstractCegarLoop]: Abstraction has 208203 states and 294789 transitions.
[2023-12-16 06:23:30,997 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:30,997 INFO  L276                IsEmpty]: Start isEmpty. Operand 208203 states and 294789 transitions.
[2023-12-16 06:23:31,005 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-16 06:23:31,005 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:31,005 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]
[2023-12-16 06:23:31,005 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-12-16 06:23:31,006 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:31,006 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:31,006 INFO  L85        PathProgramCache]: Analyzing trace with hash -657030305, now seen corresponding path program 1 times
[2023-12-16 06:23:31,006 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:31,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794194888]
[2023-12-16 06:23:31,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:31,006 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:31,052 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:31,233 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 06:23:31,233 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:31,233 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794194888]
[2023-12-16 06:23:31,233 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794194888] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:31,234 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:31,234 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-16 06:23:31,234 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157771473]
[2023-12-16 06:23:31,234 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:31,234 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 06:23:31,234 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:31,235 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 06:23:31,235 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:23:31,235 INFO  L87              Difference]: Start difference. First operand 208203 states and 294789 transitions. Second operand  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:32,809 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:32,810 INFO  L93              Difference]: Finished difference Result 342781 states and 487282 transitions.
[2023-12-16 06:23:32,810 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-16 06:23:32,810 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85
[2023-12-16 06:23:32,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:33,754 INFO  L225             Difference]: With dead ends: 342781
[2023-12-16 06:23:33,754 INFO  L226             Difference]: Without dead ends: 328226
[2023-12-16 06:23:33,822 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2023-12-16 06:23:33,823 INFO  L413           NwaCegarLoop]: 432 mSDtfsCounter, 1773 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:33,823 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 1820 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-16 06:23:34,011 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 328226 states.
[2023-12-16 06:23:36,916 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 328226 to 222540.
[2023-12-16 06:23:37,092 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 222540 states, 222539 states have (on average 1.4160214614067645) internal successors, (315120), 222539 states have internal predecessors, (315120), 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 06:23:37,898 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 222540 states to 222540 states and 315120 transitions.
[2023-12-16 06:23:37,898 INFO  L78                 Accepts]: Start accepts. Automaton has 222540 states and 315120 transitions. Word has length 85
[2023-12-16 06:23:37,898 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 06:23:37,898 INFO  L495      AbstractCegarLoop]: Abstraction has 222540 states and 315120 transitions.
[2023-12-16 06:23:37,898 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:37,898 INFO  L276                IsEmpty]: Start isEmpty. Operand 222540 states and 315120 transitions.
[2023-12-16 06:23:37,905 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-16 06:23:37,906 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 06:23:37,906 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]
[2023-12-16 06:23:37,906 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-12-16 06:23:37,906 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 06:23:37,906 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 06:23:37,907 INFO  L85        PathProgramCache]: Analyzing trace with hash 27365530, now seen corresponding path program 1 times
[2023-12-16 06:23:37,907 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 06:23:37,907 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598681822]
[2023-12-16 06:23:37,907 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 06:23:37,907 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 06:23:37,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 06:23:38,001 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 06:23:38,001 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 06:23:38,001 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598681822]
[2023-12-16 06:23:38,001 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598681822] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 06:23:38,001 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 06:23:38,001 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-16 06:23:38,002 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581321135]
[2023-12-16 06:23:38,002 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 06:23:38,002 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 06:23:38,002 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 06:23:38,003 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 06:23:38,003 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2023-12-16 06:23:38,003 INFO  L87              Difference]: Start difference. First operand 222540 states and 315120 transitions. Second operand  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:39,459 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 06:23:39,459 INFO  L93              Difference]: Finished difference Result 438695 states and 624344 transitions.
[2023-12-16 06:23:39,459 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-16 06:23:39,459 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85
[2023-12-16 06:23:39,460 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 06:23:40,253 INFO  L225             Difference]: With dead ends: 438695
[2023-12-16 06:23:40,254 INFO  L226             Difference]: Without dead ends: 377292
[2023-12-16 06:23:40,797 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2023-12-16 06:23:40,798 INFO  L413           NwaCegarLoop]: 466 mSDtfsCounter, 1676 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 06:23:40,798 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 2087 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
Received shutdown request...
[2023-12-16 06:23:40,934 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 06:23:41,077 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 377292 states.
[2023-12-16 06:23:41,079 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-16 06:23:41,079 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-12-16 06:23:41,079 WARN  L619      AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa.
[2023-12-16 06:23:41,082 INFO  L445         BasicCegarLoop]: Path program histogram: [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 06:23:41,084 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-16 06:23:41,086 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:23:41 BoogieIcfgContainer
[2023-12-16 06:23:41,086 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-16 06:23:41,091 INFO  L158              Benchmark]: Toolchain (without parser) took 56921.75ms. Allocated memory was 272.6MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 217.7MB in the beginning and 5.7GB in the end (delta: -5.5GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB.
[2023-12-16 06:23:41,091 INFO  L158              Benchmark]: CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 06:23:41,092 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 367.45ms. Allocated memory is still 272.6MB. Free memory was 217.7MB in the beginning and 193.6MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB.
[2023-12-16 06:23:41,092 INFO  L158              Benchmark]: Boogie Procedure Inliner took 62.65ms. Allocated memory is still 272.6MB. Free memory was 193.6MB in the beginning and 189.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
[2023-12-16 06:23:41,092 INFO  L158              Benchmark]: Boogie Preprocessor took 56.42ms. Allocated memory is still 272.6MB. Free memory was 189.4MB in the beginning and 185.1MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
[2023-12-16 06:23:41,092 INFO  L158              Benchmark]: RCFGBuilder took 855.82ms. Allocated memory is still 272.6MB. Free memory was 185.1MB in the beginning and 224.2MB in the end (delta: -39.1MB). Peak memory consumption was 50.5MB. Max. memory is 8.0GB.
[2023-12-16 06:23:41,092 INFO  L158              Benchmark]: TraceAbstraction took 55572.98ms. Allocated memory was 272.6MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 223.7MB in the beginning and 5.7GB in the end (delta: -5.5GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB.
[2023-12-16 06:23:41,095 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 367.45ms. Allocated memory is still 272.6MB. Free memory was 217.7MB in the beginning and 193.6MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 62.65ms. Allocated memory is still 272.6MB. Free memory was 193.6MB in the beginning and 189.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 56.42ms. Allocated memory is still 272.6MB. Free memory was 189.4MB in the beginning and 185.1MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
 * RCFGBuilder took 855.82ms. Allocated memory is still 272.6MB. Free memory was 185.1MB in the beginning and 224.2MB in the end (delta: -39.1MB). Peak memory consumption was 50.5MB. Max. memory is 8.0GB.
 * TraceAbstraction took 55572.98ms. Allocated memory was 272.6MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 223.7MB in the beginning and 5.7GB in the end (delta: -5.5GB). Peak memory consumption was 2.4GB. 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: 450]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 450). Cancelled while executing MinimizeSevpa.
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 213 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.5s, OverallIterations: 23, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 25.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27992 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27992 mSDsluCounter, 27588 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20126 mSDsCounter, 172 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9811 IncrementalHoareTripleChecker+Invalid, 9983 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 172 mSolverCounterUnsat, 7462 mSDtfsCounter, 9811 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222540occurred in iteration=22, InterpolantAutomatonStates: 194, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 26.2s AutomataMinimizationTime, 23 MinimizatonAttempts, 684558 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1905 NumberOfCodeBlocks, 1905 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1882 ConstructedInterpolants, 0 QuantifiedInterpolants, 10633 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 0/0 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