/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.5.prop2-back-serstep.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 20:44:48,784 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 20:44:48,845 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2023-12-25 20:44:48,849 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 20:44:48,850 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 20:44:48,871 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 20:44:48,871 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 20:44:48,871 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 20:44:48,872 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 20:44:48,874 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 20:44:48,875 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 20:44:48,875 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 20:44:48,875 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 20:44:48,877 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 20:44:48,877 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 20:44:48,877 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 20:44:48,877 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 20:44:48,877 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 20:44:48,877 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 20:44:48,878 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 20:44:48,878 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 20:44:48,879 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 20:44:48,879 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 20:44:48,879 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 20:44:48,879 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 20:44:48,880 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 20:44:48,880 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 20:44:48,880 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 20:44:48,880 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 20:44:48,880 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 20:44:48,881 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 20:44:48,881 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 20:44:48,881 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 20:44:48,881 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 20:44:48,882 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 20:44:48,882 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 20:44:48,882 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 20:44:48,882 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 20:44:48,882 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 20:44:48,882 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 20:44:48,882 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 20:44:49,049 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 20:44:49,071 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 20:44:49,072 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 20:44:49,073 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 20:44:49,077 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 20:44:49,077 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.5.prop2-back-serstep.c
[2023-12-25 20:44:49,929 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 20:44:50,334 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 20:44:50,335 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.5.prop2-back-serstep.c
[2023-12-25 20:44:50,372 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eed3628da/41454f82f5dd40f3a16a3546bc7dc72b/FLAG965ddd147
[2023-12-25 20:44:50,384 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eed3628da/41454f82f5dd40f3a16a3546bc7dc72b
[2023-12-25 20:44:50,386 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 20:44:50,388 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 20:44:50,389 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 20:44:50,389 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 20:44:50,393 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 20:44:50,393 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 08:44:50" (1/1) ...
[2023-12-25 20:44:50,394 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122ad304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:50, skipping insertion in model container
[2023-12-25 20:44:50,394 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 08:44:50" (1/1) ...
[2023-12-25 20:44:50,506 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 20:44:50,738 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.5.prop2-back-serstep.c[1180,1193]
[2023-12-25 20:44:51,726 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 20:44:51,736 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 20:44:51,743 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.5.prop2-back-serstep.c[1180,1193]
[2023-12-25 20:44:52,546 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 20:44:52,556 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 20:44:52,557 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52 WrapperNode
[2023-12-25 20:44:52,557 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 20:44:52,558 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 20:44:52,558 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 20:44:52,558 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 20:44:52,562 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:44:53,013 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:44:57,075 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56279
[2023-12-25 20:44:57,076 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 20:44:57,077 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 20:44:57,077 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 20:44:57,077 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 20:44:57,084 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:44:57,084 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:44:58,184 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:44:58,716 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].
[2023-12-25 20:44:58,716 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:44:58,716 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:44:59,878 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:44:59,987 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:45:00,176 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:45:00,310 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:45:00,985 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 20:45:00,986 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 20:45:00,986 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 20:45:00,986 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 20:45:00,987 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (1/1) ...
[2023-12-25 20:45:01,000 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 20:45:01,010 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:45:01,036 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)
[2023-12-25 20:45:01,053 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
[2023-12-25 20:45:01,057 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 20:45:01,057 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 20:45:01,057 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 20:45:01,057 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 20:45:03,152 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 20:45:03,154 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 20:45:20,755 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 20:45:21,290 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 20:45:21,290 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 20:45:21,290 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 08:45:21 BoogieIcfgContainer
[2023-12-25 20:45:21,291 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 20:45:21,293 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 20:45:21,294 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 20:45:21,296 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 20:45:21,296 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 08:44:50" (1/3) ...
[2023-12-25 20:45:21,297 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45bd5403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 08:45:21, skipping insertion in model container
[2023-12-25 20:45:21,297 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:44:52" (2/3) ...
[2023-12-25 20:45:21,298 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45bd5403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 08:45:21, skipping insertion in model container
[2023-12-25 20:45:21,298 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 08:45:21" (3/3) ...
[2023-12-25 20:45:21,299 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pgm_protocol.5.prop2-back-serstep.c
[2023-12-25 20:45:21,311 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 20:45:21,312 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 20:45:21,441 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 20:45:21,446 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;@f33626b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 20:45:21,446 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 20:45:21,475 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 12145 states, 12143 states have (on average 1.6668862719262125) internal successors, (20241), 12144 states have internal predecessors, (20241), 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)
[2023-12-25 20:45:21,518 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1267
[2023-12-25 20:45:21,519 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:45:21,520 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 20:45:21,521 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:45:21,526 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:45:21,527 INFO  L85        PathProgramCache]: Analyzing trace with hash 510523978, now seen corresponding path program 1 times
[2023-12-25 20:45:21,534 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:45:21,535 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36976031]
[2023-12-25 20:45:21,536 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:45:21,536 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:45:22,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:45:26,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:45:26,080 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:45:26,081 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36976031]
[2023-12-25 20:45:26,081 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36976031] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:45:26,081 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:45:26,082 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 20:45:26,083 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125121750]
[2023-12-25 20:45:26,084 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:45:26,090 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:45:26,091 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:45:26,122 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:45:26,122 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:45:26,154 INFO  L87              Difference]: Start difference. First operand  has 12145 states, 12143 states have (on average 1.6668862719262125) internal successors, (20241), 12144 states have internal predecessors, (20241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 316.5) internal successors, (1266), 4 states have internal predecessors, (1266), 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)
[2023-12-25 20:45:26,618 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:45:26,619 INFO  L93              Difference]: Finished difference Result 23761 states and 39603 transitions.
[2023-12-25 20:45:26,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:45:26,621 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 316.5) internal successors, (1266), 4 states have internal predecessors, (1266), 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 1266
[2023-12-25 20:45:26,625 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:45:26,668 INFO  L225             Difference]: With dead ends: 23761
[2023-12-25 20:45:26,668 INFO  L226             Difference]: Without dead ends: 12145
[2023-12-25 20:45:26,686 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
[2023-12-25 20:45:26,688 INFO  L413           NwaCegarLoop]: 20234 mSDtfsCounter, 1 mSDsluCounter, 40463 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60697 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:45:26,689 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60697 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:45:26,716 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12145 states.
[2023-12-25 20:45:26,881 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12145 to 12145.
[2023-12-25 20:45:26,908 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12145 states, 12144 states have (on average 1.6665843214756257) internal successors, (20239), 12144 states have internal predecessors, (20239), 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)
[2023-12-25 20:45:26,932 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12145 states to 12145 states and 20239 transitions.
[2023-12-25 20:45:26,933 INFO  L78                 Accepts]: Start accepts. Automaton has 12145 states and 20239 transitions. Word has length 1266
[2023-12-25 20:45:26,936 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:45:26,936 INFO  L495      AbstractCegarLoop]: Abstraction has 12145 states and 20239 transitions.
[2023-12-25 20:45:26,937 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 316.5) internal successors, (1266), 4 states have internal predecessors, (1266), 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)
[2023-12-25 20:45:26,937 INFO  L276                IsEmpty]: Start isEmpty. Operand 12145 states and 20239 transitions.
[2023-12-25 20:45:26,967 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1268
[2023-12-25 20:45:26,967 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:45:26,968 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 20:45:26,968 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 20:45:26,969 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:45:26,969 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:45:26,969 INFO  L85        PathProgramCache]: Analyzing trace with hash -1351893346, now seen corresponding path program 1 times
[2023-12-25 20:45:26,969 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:45:26,970 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572483467]
[2023-12-25 20:45:26,970 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:45:26,970 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:45:27,468 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:45:28,912 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:45:28,913 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:45:28,913 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572483467]
[2023-12-25 20:45:28,913 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572483467] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:45:28,913 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:45:28,913 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 20:45:28,913 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115375852]
[2023-12-25 20:45:28,914 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:45:28,916 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:45:28,919 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:45:28,920 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:45:28,921 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:45:28,921 INFO  L87              Difference]: Start difference. First operand 12145 states and 20239 transitions. Second operand  has 4 states, 4 states have (on average 316.75) internal successors, (1267), 4 states have internal predecessors, (1267), 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)
[2023-12-25 20:45:29,235 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:45:29,235 INFO  L93              Difference]: Finished difference Result 23764 states and 39601 transitions.
[2023-12-25 20:45:29,236 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:45:29,236 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 316.75) internal successors, (1267), 4 states have internal predecessors, (1267), 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 1267
[2023-12-25 20:45:29,238 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:45:29,277 INFO  L225             Difference]: With dead ends: 23764
[2023-12-25 20:45:29,277 INFO  L226             Difference]: Without dead ends: 12148
[2023-12-25 20:45:29,290 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:45:29,291 INFO  L413           NwaCegarLoop]: 20234 mSDtfsCounter, 1 mSDsluCounter, 40461 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:45:29,292 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60695 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:45:29,307 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12148 states.
[2023-12-25 20:45:29,524 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12148 to 12147.
[2023-12-25 20:45:29,540 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12147 states, 12146 states have (on average 1.6664745595257697) internal successors, (20241), 12146 states have internal predecessors, (20241), 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)
[2023-12-25 20:45:29,571 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12147 states to 12147 states and 20241 transitions.
[2023-12-25 20:45:29,571 INFO  L78                 Accepts]: Start accepts. Automaton has 12147 states and 20241 transitions. Word has length 1267
[2023-12-25 20:45:29,572 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:45:29,572 INFO  L495      AbstractCegarLoop]: Abstraction has 12147 states and 20241 transitions.
[2023-12-25 20:45:29,573 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 316.75) internal successors, (1267), 4 states have internal predecessors, (1267), 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)
[2023-12-25 20:45:29,573 INFO  L276                IsEmpty]: Start isEmpty. Operand 12147 states and 20241 transitions.
[2023-12-25 20:45:29,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1269
[2023-12-25 20:45:29,584 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:45:29,584 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 20:45:29,584 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 20:45:29,585 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:45:29,591 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:45:29,592 INFO  L85        PathProgramCache]: Analyzing trace with hash -1689405594, now seen corresponding path program 1 times
[2023-12-25 20:45:29,592 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:45:29,593 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579997227]
[2023-12-25 20:45:29,593 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:45:29,594 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:45:29,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:45:31,556 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:45:31,556 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:45:31,557 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579997227]
[2023-12-25 20:45:31,557 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579997227] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:45:31,557 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:45:31,557 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 20:45:31,557 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175223259]
[2023-12-25 20:45:31,558 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:45:31,559 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:45:31,559 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:45:31,560 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:45:31,561 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:45:31,563 INFO  L87              Difference]: Start difference. First operand 12147 states and 20241 transitions. Second operand  has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 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)
[2023-12-25 20:45:32,006 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:45:32,006 INFO  L93              Difference]: Finished difference Result 35377 states and 58952 transitions.
[2023-12-25 20:45:32,006 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 20:45:32,007 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 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 1268
[2023-12-25 20:45:32,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:45:32,042 INFO  L225             Difference]: With dead ends: 35377
[2023-12-25 20:45:32,043 INFO  L226             Difference]: Without dead ends: 23759
[2023-12-25 20:45:32,063 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:45:32,065 INFO  L413           NwaCegarLoop]: 22499 mSDtfsCounter, 19347 mSDsluCounter, 42724 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19347 SdHoareTripleChecker+Valid, 65223 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:45:32,065 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19347 Valid, 65223 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:45:32,091 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23759 states.
[2023-12-25 20:45:32,317 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23759 to 12149.
[2023-12-25 20:45:32,336 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12149 states, 12148 states have (on average 1.6663648337174843) internal successors, (20243), 12148 states have internal predecessors, (20243), 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)
[2023-12-25 20:45:32,354 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12149 states to 12149 states and 20243 transitions.
[2023-12-25 20:45:32,354 INFO  L78                 Accepts]: Start accepts. Automaton has 12149 states and 20243 transitions. Word has length 1268
[2023-12-25 20:45:32,356 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:45:32,356 INFO  L495      AbstractCegarLoop]: Abstraction has 12149 states and 20243 transitions.
[2023-12-25 20:45:32,357 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 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)
[2023-12-25 20:45:32,358 INFO  L276                IsEmpty]: Start isEmpty. Operand 12149 states and 20243 transitions.
[2023-12-25 20:45:32,370 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1270
[2023-12-25 20:45:32,370 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:45:32,375 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 20:45:32,375 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 20:45:32,375 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:45:32,376 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:45:32,376 INFO  L85        PathProgramCache]: Analyzing trace with hash -942664826, now seen corresponding path program 1 times
[2023-12-25 20:45:32,376 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:45:32,376 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698826619]
[2023-12-25 20:45:32,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:45:32,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:45:32,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:45:34,528 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:45:34,529 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:45:34,529 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698826619]
[2023-12-25 20:45:34,529 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698826619] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:45:34,529 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:45:34,529 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 20:45:34,529 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514875735]
[2023-12-25 20:45:34,529 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:45:34,530 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:45:34,530 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:45:34,531 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:45:34,532 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:45:34,532 INFO  L87              Difference]: Start difference. First operand 12149 states and 20243 transitions. Second operand  has 5 states, 5 states have (on average 253.8) internal successors, (1269), 4 states have internal predecessors, (1269), 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)
[2023-12-25 20:45:35,064 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:45:35,065 INFO  L93              Difference]: Finished difference Result 36742 states and 61223 transitions.
[2023-12-25 20:45:35,065 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:45:35,066 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 253.8) internal successors, (1269), 4 states have internal predecessors, (1269), 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 1269
[2023-12-25 20:45:35,068 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:45:35,106 INFO  L225             Difference]: With dead ends: 36742
[2023-12-25 20:45:35,106 INFO  L226             Difference]: Without dead ends: 25122
[2023-12-25 20:45:35,123 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-25 20:45:35,127 INFO  L413           NwaCegarLoop]: 22498 mSDtfsCounter, 79286 mSDsluCounter, 40462 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79286 SdHoareTripleChecker+Valid, 62960 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:45:35,128 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [79286 Valid, 62960 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:45:35,151 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25122 states.
[2023-12-25 20:45:35,410 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25122 to 13508.
[2023-12-25 20:45:35,425 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13508 states, 13507 states have (on average 1.666395202487599) internal successors, (22508), 13507 states have internal predecessors, (22508), 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)
[2023-12-25 20:45:35,444 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13508 states to 13508 states and 22508 transitions.
[2023-12-25 20:45:35,445 INFO  L78                 Accepts]: Start accepts. Automaton has 13508 states and 22508 transitions. Word has length 1269
[2023-12-25 20:45:35,446 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:45:35,446 INFO  L495      AbstractCegarLoop]: Abstraction has 13508 states and 22508 transitions.
[2023-12-25 20:45:35,446 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 253.8) internal successors, (1269), 4 states have internal predecessors, (1269), 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)
[2023-12-25 20:45:35,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 13508 states and 22508 transitions.
[2023-12-25 20:45:35,868 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8999
[2023-12-25 20:45:35,868 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:45:35,872 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 20:45:35,875 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-25 20:45:35,875 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:45:35,875 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:45:35,877 INFO  L85        PathProgramCache]: Analyzing trace with hash -350308461, now seen corresponding path program 1 times
[2023-12-25 20:45:35,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:45:35,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61651545]
[2023-12-25 20:45:35,878 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:45:35,879 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:45:36,789 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:45:36,790 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039010816]
[2023-12-25 20:45:36,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:45:36,792 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:45:36,792 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:45:36,798 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:45:36,803 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-25 20:45:47,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:45:48,210 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45327 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 20:45:48,510 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:45:49,638 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 8 proven. 675 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked.
[2023-12-25 20:45:49,638 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:45:49,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked.
[2023-12-25 20:45:49,840 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:45:49,840 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61651545]
[2023-12-25 20:45:49,840 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:45:49,840 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039010816]
[2023-12-25 20:45:49,840 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039010816] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:45:49,840 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:45:49,842 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12
[2023-12-25 20:45:49,842 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217845750]
[2023-12-25 20:45:49,842 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:45:49,849 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 20:45:49,849 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:45:49,854 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 20:45:49,854 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 20:45:49,856 INFO  L87              Difference]: Start difference. First operand 13508 states and 22508 transitions. Second operand  has 6 states, 6 states have (on average 1349.1666666666667) internal successors, (8095), 6 states have internal predecessors, (8095), 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)
[2023-12-25 20:46:16,140 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:46:16,140 INFO  L93              Difference]: Finished difference Result 58760 states and 97506 transitions.
[2023-12-25 20:46:16,140 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 20:46:16,142 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1349.1666666666667) internal successors, (8095), 6 states have internal predecessors, (8095), 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 8998
[2023-12-25 20:46:16,154 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:46:16,197 INFO  L225             Difference]: With dead ends: 58760
[2023-12-25 20:46:16,197 INFO  L226             Difference]: Without dead ends: 36740
[2023-12-25 20:46:16,212 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 17996 GetRequests, 17984 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182
[2023-12-25 20:46:16,212 INFO  L413           NwaCegarLoop]: 32111 mSDtfsCounter, 54392 mSDsluCounter, 108834 mSDsCounter, 0 mSdLazyCounter, 46689 mSolverCounterSat, 1218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54392 SdHoareTripleChecker+Valid, 140945 SdHoareTripleChecker+Invalid, 47907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1218 IncrementalHoareTripleChecker+Valid, 46689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:46:16,213 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [54392 Valid, 140945 Invalid, 47907 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1218 Valid, 46689 Invalid, 0 Unknown, 0 Unchecked, 25.1s Time]
[2023-12-25 20:46:16,235 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36740 states.
[2023-12-25 20:46:16,411 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36740 to 13510.
[2023-12-25 20:46:16,424 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13510 states, 13509 states have (on average 1.666296543045377) internal successors, (22510), 13509 states have internal predecessors, (22510), 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)
[2023-12-25 20:46:16,446 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13510 states to 13510 states and 22510 transitions.
[2023-12-25 20:46:16,446 INFO  L78                 Accepts]: Start accepts. Automaton has 13510 states and 22510 transitions. Word has length 8998
[2023-12-25 20:46:16,454 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:46:16,454 INFO  L495      AbstractCegarLoop]: Abstraction has 13510 states and 22510 transitions.
[2023-12-25 20:46:16,456 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1349.1666666666667) internal successors, (8095), 6 states have internal predecessors, (8095), 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)
[2023-12-25 20:46:16,456 INFO  L276                IsEmpty]: Start isEmpty. Operand 13510 states and 22510 transitions.
[2023-12-25 20:46:16,930 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9000
[2023-12-25 20:46:16,930 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:46:16,934 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:46:17,053 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-25 20:46:17,135 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:46:17,135 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:46:17,136 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:46:17,138 INFO  L85        PathProgramCache]: Analyzing trace with hash 1826544019, now seen corresponding path program 1 times
[2023-12-25 20:46:17,138 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:46:17,138 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539040564]
[2023-12-25 20:46:17,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:46:17,139 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:46:17,950 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:46:17,950 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967562169]
[2023-12-25 20:46:17,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:46:17,952 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:46:17,952 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:46:17,953 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:46:17,955 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-25 20:46:28,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:46:28,954 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45330 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:46:29,083 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:46:30,215 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 10 proven. 675 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked.
[2023-12-25 20:46:30,215 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:46:30,386 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked.
[2023-12-25 20:46:30,388 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:46:30,391 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539040564]
[2023-12-25 20:46:30,391 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:46:30,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967562169]
[2023-12-25 20:46:30,392 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [967562169] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:46:30,392 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:46:30,393 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:46:30,393 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723064647]
[2023-12-25 20:46:30,394 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:46:30,402 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:46:30,402 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:46:30,408 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:46:30,408 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:46:30,409 INFO  L87              Difference]: Start difference. First operand 13510 states and 22510 transitions. Second operand  has 5 states, 5 states have (on average 1619.6) internal successors, (8098), 5 states have internal predecessors, (8098), 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)
[2023-12-25 20:46:42,880 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:46:42,881 INFO  L93              Difference]: Finished difference Result 47149 states and 78155 transitions.
[2023-12-25 20:46:42,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:46:42,883 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1619.6) internal successors, (8098), 5 states have internal predecessors, (8098), 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 8999
[2023-12-25 20:46:42,893 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:46:42,925 INFO  L225             Difference]: With dead ends: 47149
[2023-12-25 20:46:42,926 INFO  L226             Difference]: Without dead ends: 25122
[2023-12-25 20:46:42,939 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 17997 GetRequests, 17988 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:46:42,939 INFO  L413           NwaCegarLoop]: 32101 mSDtfsCounter, 50731 mSDsluCounter, 31879 mSDsCounter, 0 mSdLazyCounter, 16938 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50731 SdHoareTripleChecker+Valid, 63980 SdHoareTripleChecker+Invalid, 18154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 16938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time
[2023-12-25 20:46:42,940 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50731 Valid, 63980 Invalid, 18154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1216 Valid, 16938 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time]
[2023-12-25 20:46:42,960 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25122 states.
[2023-12-25 20:46:43,179 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25122 to 13512.
[2023-12-25 20:46:43,192 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13512 states, 13511 states have (on average 1.666197912811783) internal successors, (22512), 13511 states have internal predecessors, (22512), 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)
[2023-12-25 20:46:43,216 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13512 states to 13512 states and 22512 transitions.
[2023-12-25 20:46:43,217 INFO  L78                 Accepts]: Start accepts. Automaton has 13512 states and 22512 transitions. Word has length 8999
[2023-12-25 20:46:43,221 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:46:43,222 INFO  L495      AbstractCegarLoop]: Abstraction has 13512 states and 22512 transitions.
[2023-12-25 20:46:43,223 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1619.6) internal successors, (8098), 5 states have internal predecessors, (8098), 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)
[2023-12-25 20:46:43,223 INFO  L276                IsEmpty]: Start isEmpty. Operand 13512 states and 22512 transitions.
[2023-12-25 20:46:43,682 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9001
[2023-12-25 20:46:43,682 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:46:43,685 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:46:43,817 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-12-25 20:46:43,891 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2023-12-25 20:46:43,891 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:46:43,891 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:46:43,894 INFO  L85        PathProgramCache]: Analyzing trace with hash 328284345, now seen corresponding path program 1 times
[2023-12-25 20:46:43,894 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:46:43,894 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376263171]
[2023-12-25 20:46:43,894 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:46:43,895 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:46:44,674 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:46:44,675 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [704932239]
[2023-12-25 20:46:44,676 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:46:44,677 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:46:44,677 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:46:44,677 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:46:44,688 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-25 20:46:55,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:46:55,632 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45333 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:46:55,801 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:46:56,778 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 12 proven. 675 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked.
[2023-12-25 20:46:56,779 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:46:56,891 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked.
[2023-12-25 20:46:56,891 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:46:56,891 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376263171]
[2023-12-25 20:46:56,891 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:46:56,891 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704932239]
[2023-12-25 20:46:56,891 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [704932239] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:46:56,892 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:46:56,893 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:46:56,893 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099471354]
[2023-12-25 20:46:56,893 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:46:56,899 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:46:56,899 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:46:56,904 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:46:56,904 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:46:56,905 INFO  L87              Difference]: Start difference. First operand 13512 states and 22512 transitions. Second operand  has 5 states, 5 states have (on average 1620.2) internal successors, (8101), 5 states have internal predecessors, (8101), 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)
[2023-12-25 20:47:11,268 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:47:11,268 INFO  L93              Difference]: Finished difference Result 47157 states and 78163 transitions.
[2023-12-25 20:47:11,268 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:47:11,270 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1620.2) internal successors, (8101), 5 states have internal predecessors, (8101), 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 9000
[2023-12-25 20:47:11,276 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:47:11,307 INFO  L225             Difference]: With dead ends: 47157
[2023-12-25 20:47:11,307 INFO  L226             Difference]: Without dead ends: 25123
[2023-12-25 20:47:11,317 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 17999 GetRequests, 17990 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:47:11,318 INFO  L413           NwaCegarLoop]: 32093 mSDtfsCounter, 35029 mSDsluCounter, 48617 mSDsCounter, 0 mSdLazyCounter, 22682 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35029 SdHoareTripleChecker+Valid, 80710 SdHoareTripleChecker+Invalid, 23898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 22682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time
[2023-12-25 20:47:11,319 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35029 Valid, 80710 Invalid, 23898 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 22682 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time]
[2023-12-25 20:47:11,337 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25123 states.
[2023-12-25 20:47:11,477 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25123 to 13514.
[2023-12-25 20:47:11,490 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13514 states, 13513 states have (on average 1.6660993117738474) internal successors, (22514), 13513 states have internal predecessors, (22514), 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)
[2023-12-25 20:47:11,506 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13514 states to 13514 states and 22514 transitions.
[2023-12-25 20:47:11,506 INFO  L78                 Accepts]: Start accepts. Automaton has 13514 states and 22514 transitions. Word has length 9000
[2023-12-25 20:47:11,512 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:47:11,512 INFO  L495      AbstractCegarLoop]: Abstraction has 13514 states and 22514 transitions.
[2023-12-25 20:47:11,513 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1620.2) internal successors, (8101), 5 states have internal predecessors, (8101), 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)
[2023-12-25 20:47:11,513 INFO  L276                IsEmpty]: Start isEmpty. Operand 13514 states and 22514 transitions.
[2023-12-25 20:47:11,976 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9002
[2023-12-25 20:47:11,976 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:47:11,979 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 20:47:12,115 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-12-25 20:47:12,180 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:47:12,180 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:47:12,181 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:47:12,183 INFO  L85        PathProgramCache]: Analyzing trace with hash 216983279, now seen corresponding path program 1 times
[2023-12-25 20:47:12,183 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:47:12,183 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172393265]
[2023-12-25 20:47:12,184 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:12,184 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:47:12,953 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:47:12,953 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1403073546]
[2023-12-25 20:47:12,955 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:12,955 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:47:12,955 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:47:12,956 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:47:12,958 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-25 20:47:23,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:47:23,800 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45337 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:47:23,927 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:47:24,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 14 proven. 675 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked.
[2023-12-25 20:47:24,850 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:47:24,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 898 trivial. 0 not checked.
[2023-12-25 20:47:24,972 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:47:24,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172393265]
[2023-12-25 20:47:24,972 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:47:24,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403073546]
[2023-12-25 20:47:24,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403073546] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:47:24,973 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:47:24,974 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:47:24,974 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798245883]
[2023-12-25 20:47:24,974 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:47:24,980 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:47:24,980 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:47:24,984 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:47:24,985 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:47:24,985 INFO  L87              Difference]: Start difference. First operand 13514 states and 22514 transitions. Second operand  has 5 states, 5 states have (on average 1620.8) internal successors, (8104), 5 states have internal predecessors, (8104), 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)
[2023-12-25 20:47:39,127 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:47:39,127 INFO  L93              Difference]: Finished difference Result 47165 states and 78171 transitions.
[2023-12-25 20:47:39,127 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:47:39,129 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1620.8) internal successors, (8104), 5 states have internal predecessors, (8104), 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 9001
[2023-12-25 20:47:39,134 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:47:39,173 INFO  L225             Difference]: With dead ends: 47165
[2023-12-25 20:47:39,174 INFO  L226             Difference]: Without dead ends: 25124
[2023-12-25 20:47:39,188 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18001 GetRequests, 17992 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:47:39,189 INFO  L413           NwaCegarLoop]: 32085 mSDtfsCounter, 35023 mSDsluCounter, 48607 mSDsCounter, 0 mSdLazyCounter, 22682 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35023 SdHoareTripleChecker+Valid, 80692 SdHoareTripleChecker+Invalid, 23898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 22682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time
[2023-12-25 20:47:39,189 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35023 Valid, 80692 Invalid, 23898 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 22682 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time]
[2023-12-25 20:47:39,209 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25124 states.
[2023-12-25 20:47:39,337 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25124 to 13516.
[2023-12-25 20:47:39,350 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13516 states, 13515 states have (on average 1.666000739918609) internal successors, (22516), 13515 states have internal predecessors, (22516), 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)
[2023-12-25 20:47:39,365 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13516 states to 13516 states and 22516 transitions.
[2023-12-25 20:47:39,365 INFO  L78                 Accepts]: Start accepts. Automaton has 13516 states and 22516 transitions. Word has length 9001
[2023-12-25 20:47:39,369 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:47:39,369 INFO  L495      AbstractCegarLoop]: Abstraction has 13516 states and 22516 transitions.
[2023-12-25 20:47:39,370 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1620.8) internal successors, (8104), 5 states have internal predecessors, (8104), 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)
[2023-12-25 20:47:39,371 INFO  L276                IsEmpty]: Start isEmpty. Operand 13516 states and 22516 transitions.
[2023-12-25 20:47:39,814 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9003
[2023-12-25 20:47:39,814 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:47:39,818 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:47:39,950 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-25 20:47:40,034 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:47:40,035 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:47:40,035 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:47:40,037 INFO  L85        PathProgramCache]: Analyzing trace with hash 623484769, now seen corresponding path program 1 times
[2023-12-25 20:47:40,037 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:47:40,037 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692804217]
[2023-12-25 20:47:40,038 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:40,038 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:47:40,782 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:47:40,782 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409348385]
[2023-12-25 20:47:40,784 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:40,784 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:47:40,784 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:47:40,785 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:47:40,787 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-25 20:47:51,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:47:51,883 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45340 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:47:51,985 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:47:53,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 16 proven. 675 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked.
[2023-12-25 20:47:53,082 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:47:53,224 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked.
[2023-12-25 20:47:53,225 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:47:53,225 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692804217]
[2023-12-25 20:47:53,225 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:47:53,225 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409348385]
[2023-12-25 20:47:53,240 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [409348385] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:47:53,240 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:47:53,242 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:47:53,242 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482377647]
[2023-12-25 20:47:53,242 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:47:53,248 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:47:53,248 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:47:53,268 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:47:53,268 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:47:53,271 INFO  L87              Difference]: Start difference. First operand 13516 states and 22516 transitions. Second operand  has 5 states, 5 states have (on average 1621.4) internal successors, (8107), 5 states have internal predecessors, (8107), 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)
[2023-12-25 20:48:07,755 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:07,755 INFO  L93              Difference]: Finished difference Result 47173 states and 78179 transitions.
[2023-12-25 20:48:07,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:48:07,757 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1621.4) internal successors, (8107), 5 states have internal predecessors, (8107), 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 9002
[2023-12-25 20:48:07,763 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:07,781 INFO  L225             Difference]: With dead ends: 47173
[2023-12-25 20:48:07,781 INFO  L226             Difference]: Without dead ends: 25125
[2023-12-25 20:48:07,790 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18003 GetRequests, 17994 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:48:07,790 INFO  L413           NwaCegarLoop]: 32077 mSDtfsCounter, 35023 mSDsluCounter, 46329 mSDsCounter, 0 mSdLazyCounter, 21806 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35023 SdHoareTripleChecker+Valid, 78406 SdHoareTripleChecker+Invalid, 23022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 21806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time
[2023-12-25 20:48:07,791 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35023 Valid, 78406 Invalid, 23022 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 21806 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time]
[2023-12-25 20:48:07,810 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25125 states.
[2023-12-25 20:48:07,927 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25125 to 13518.
[2023-12-25 20:48:07,939 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13518 states, 13517 states have (on average 1.6659021972331138) internal successors, (22518), 13517 states have internal predecessors, (22518), 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)
[2023-12-25 20:48:07,951 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13518 states to 13518 states and 22518 transitions.
[2023-12-25 20:48:07,952 INFO  L78                 Accepts]: Start accepts. Automaton has 13518 states and 22518 transitions. Word has length 9002
[2023-12-25 20:48:07,955 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:07,956 INFO  L495      AbstractCegarLoop]: Abstraction has 13518 states and 22518 transitions.
[2023-12-25 20:48:07,956 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1621.4) internal successors, (8107), 5 states have internal predecessors, (8107), 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)
[2023-12-25 20:48:07,956 INFO  L276                IsEmpty]: Start isEmpty. Operand 13518 states and 22518 transitions.
[2023-12-25 20:48:08,404 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9004
[2023-12-25 20:48:08,404 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:08,407 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:48:08,536 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2023-12-25 20:48:08,624 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:48:08,624 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:08,625 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:08,627 INFO  L85        PathProgramCache]: Analyzing trace with hash -1472749879, now seen corresponding path program 1 times
[2023-12-25 20:48:08,627 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:08,627 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210942818]
[2023-12-25 20:48:08,628 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:08,628 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:09,363 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:48:09,364 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778362900]
[2023-12-25 20:48:09,365 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:09,365 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:48:09,365 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:48:09,366 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:48:09,368 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-12-25 20:48:20,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:20,378 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45343 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:48:20,486 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:48:21,447 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 18 proven. 675 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked.
[2023-12-25 20:48:21,447 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:48:21,624 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 894 trivial. 0 not checked.
[2023-12-25 20:48:21,624 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:21,624 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210942818]
[2023-12-25 20:48:21,624 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:48:21,624 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778362900]
[2023-12-25 20:48:21,625 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778362900] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:48:21,625 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:48:21,626 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:48:21,626 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304922855]
[2023-12-25 20:48:21,626 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:21,632 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:48:21,632 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:21,636 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:48:21,636 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:48:21,637 INFO  L87              Difference]: Start difference. First operand 13518 states and 22518 transitions. Second operand  has 5 states, 5 states have (on average 1622.0) internal successors, (8110), 5 states have internal predecessors, (8110), 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)
[2023-12-25 20:48:35,524 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:35,524 INFO  L93              Difference]: Finished difference Result 47181 states and 78187 transitions.
[2023-12-25 20:48:35,524 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:48:35,526 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1622.0) internal successors, (8110), 5 states have internal predecessors, (8110), 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 9003
[2023-12-25 20:48:35,532 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:35,550 INFO  L225             Difference]: With dead ends: 47181
[2023-12-25 20:48:35,550 INFO  L226             Difference]: Without dead ends: 25126
[2023-12-25 20:48:35,561 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18005 GetRequests, 17996 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:48:35,561 INFO  L413           NwaCegarLoop]: 32069 mSDtfsCounter, 35018 mSDsluCounter, 46321 mSDsCounter, 0 mSdLazyCounter, 21806 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35018 SdHoareTripleChecker+Valid, 78390 SdHoareTripleChecker+Invalid, 23022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 21806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time
[2023-12-25 20:48:35,562 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35018 Valid, 78390 Invalid, 23022 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 21806 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time]
[2023-12-25 20:48:35,580 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25126 states.
[2023-12-25 20:48:35,704 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25126 to 13520.
[2023-12-25 20:48:35,715 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13520 states, 13519 states have (on average 1.6658036837044161) internal successors, (22520), 13519 states have internal predecessors, (22520), 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)
[2023-12-25 20:48:35,729 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13520 states to 13520 states and 22520 transitions.
[2023-12-25 20:48:35,729 INFO  L78                 Accepts]: Start accepts. Automaton has 13520 states and 22520 transitions. Word has length 9003
[2023-12-25 20:48:35,733 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:35,733 INFO  L495      AbstractCegarLoop]: Abstraction has 13520 states and 22520 transitions.
[2023-12-25 20:48:35,734 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1622.0) internal successors, (8110), 5 states have internal predecessors, (8110), 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)
[2023-12-25 20:48:35,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 13520 states and 22520 transitions.
[2023-12-25 20:48:36,179 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9005
[2023-12-25 20:48:36,179 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:36,182 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:48:36,314 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2023-12-25 20:48:36,382 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:48:36,382 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:36,383 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:36,385 INFO  L85        PathProgramCache]: Analyzing trace with hash -294566777, now seen corresponding path program 1 times
[2023-12-25 20:48:36,385 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:36,385 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596491039]
[2023-12-25 20:48:36,386 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:36,386 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:37,099 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:48:37,099 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445399175]
[2023-12-25 20:48:37,100 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:37,101 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:48:37,101 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:48:37,101 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:48:37,104 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-12-25 20:48:47,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:47,931 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45346 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:48:48,049 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:48:48,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 20 proven. 675 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked.
[2023-12-25 20:48:48,925 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:48:49,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked.
[2023-12-25 20:48:49,148 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:49,148 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596491039]
[2023-12-25 20:48:49,148 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:48:49,148 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445399175]
[2023-12-25 20:48:49,148 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [445399175] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:48:49,148 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:48:49,150 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:48:49,150 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516839334]
[2023-12-25 20:48:49,150 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:49,155 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:48:49,155 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:49,159 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:48:49,159 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:48:49,160 INFO  L87              Difference]: Start difference. First operand 13520 states and 22520 transitions. Second operand  has 5 states, 5 states have (on average 1622.6) internal successors, (8113), 5 states have internal predecessors, (8113), 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)
[2023-12-25 20:49:03,313 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:49:03,313 INFO  L93              Difference]: Finished difference Result 47189 states and 78195 transitions.
[2023-12-25 20:49:03,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:49:03,315 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1622.6) internal successors, (8113), 5 states have internal predecessors, (8113), 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 9004
[2023-12-25 20:49:03,321 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:49:03,343 INFO  L225             Difference]: With dead ends: 47189
[2023-12-25 20:49:03,343 INFO  L226             Difference]: Without dead ends: 25127
[2023-12-25 20:49:03,355 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18007 GetRequests, 17998 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:49:03,356 INFO  L413           NwaCegarLoop]: 32061 mSDtfsCounter, 35005 mSDsluCounter, 48577 mSDsCounter, 0 mSdLazyCounter, 22682 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35005 SdHoareTripleChecker+Valid, 80638 SdHoareTripleChecker+Invalid, 23898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 22682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time
[2023-12-25 20:49:03,356 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35005 Valid, 80638 Invalid, 23898 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 22682 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time]
[2023-12-25 20:49:03,374 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25127 states.
[2023-12-25 20:49:03,515 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25127 to 13522.
[2023-12-25 20:49:03,528 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13522 states, 13521 states have (on average 1.665705199319577) internal successors, (22522), 13521 states have internal predecessors, (22522), 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)
[2023-12-25 20:49:03,542 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13522 states to 13522 states and 22522 transitions.
[2023-12-25 20:49:03,542 INFO  L78                 Accepts]: Start accepts. Automaton has 13522 states and 22522 transitions. Word has length 9004
[2023-12-25 20:49:03,547 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:49:03,547 INFO  L495      AbstractCegarLoop]: Abstraction has 13522 states and 22522 transitions.
[2023-12-25 20:49:03,548 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1622.6) internal successors, (8113), 5 states have internal predecessors, (8113), 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)
[2023-12-25 20:49:03,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 13522 states and 22522 transitions.
[2023-12-25 20:49:04,003 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9006
[2023-12-25 20:49:04,003 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:49:04,005 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:49:04,143 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-12-25 20:49:04,224 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:04,224 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:49:04,225 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:49:04,226 INFO  L85        PathProgramCache]: Analyzing trace with hash -2079558363, now seen corresponding path program 1 times
[2023-12-25 20:49:04,227 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:49:04,227 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224590523]
[2023-12-25 20:49:04,227 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:04,227 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:49:04,972 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:49:04,973 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1623728346]
[2023-12-25 20:49:04,974 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:04,974 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:04,975 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:49:04,975 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:49:04,977 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-12-25 20:49:15,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:49:15,888 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45350 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:49:16,037 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:49:16,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 22 proven. 675 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked.
[2023-12-25 20:49:16,951 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:49:17,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked.
[2023-12-25 20:49:17,071 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:49:17,071 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224590523]
[2023-12-25 20:49:17,071 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:49:17,071 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623728346]
[2023-12-25 20:49:17,071 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623728346] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:49:17,071 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:49:17,072 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:49:17,073 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807416745]
[2023-12-25 20:49:17,073 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:49:17,078 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:49:17,078 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:49:17,082 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:49:17,082 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:49:17,083 INFO  L87              Difference]: Start difference. First operand 13522 states and 22522 transitions. Second operand  has 5 states, 5 states have (on average 1623.2) internal successors, (8116), 5 states have internal predecessors, (8116), 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)
[2023-12-25 20:49:31,216 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:49:31,216 INFO  L93              Difference]: Finished difference Result 47197 states and 78203 transitions.
[2023-12-25 20:49:31,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:49:31,218 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1623.2) internal successors, (8116), 5 states have internal predecessors, (8116), 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 9005
[2023-12-25 20:49:31,223 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:49:31,242 INFO  L225             Difference]: With dead ends: 47197
[2023-12-25 20:49:31,242 INFO  L226             Difference]: Without dead ends: 25128
[2023-12-25 20:49:31,252 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18009 GetRequests, 18000 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:49:31,253 INFO  L413           NwaCegarLoop]: 32053 mSDtfsCounter, 34999 mSDsluCounter, 48567 mSDsCounter, 0 mSdLazyCounter, 22682 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34999 SdHoareTripleChecker+Valid, 80620 SdHoareTripleChecker+Invalid, 23898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 22682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time
[2023-12-25 20:49:31,253 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34999 Valid, 80620 Invalid, 23898 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 22682 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time]
[2023-12-25 20:49:31,271 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25128 states.
[2023-12-25 20:49:31,385 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25128 to 13524.
[2023-12-25 20:49:31,397 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13524 states, 13523 states have (on average 1.665606744065666) internal successors, (22524), 13523 states have internal predecessors, (22524), 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)
[2023-12-25 20:49:31,411 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13524 states to 13524 states and 22524 transitions.
[2023-12-25 20:49:31,411 INFO  L78                 Accepts]: Start accepts. Automaton has 13524 states and 22524 transitions. Word has length 9005
[2023-12-25 20:49:31,415 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:49:31,415 INFO  L495      AbstractCegarLoop]: Abstraction has 13524 states and 22524 transitions.
[2023-12-25 20:49:31,416 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1623.2) internal successors, (8116), 5 states have internal predecessors, (8116), 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)
[2023-12-25 20:49:31,416 INFO  L276                IsEmpty]: Start isEmpty. Operand 13524 states and 22524 transitions.
[2023-12-25 20:49:31,843 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9007
[2023-12-25 20:49:31,843 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:49:31,845 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:49:31,963 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-12-25 20:49:32,045 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2023-12-25 20:49:32,046 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:49:32,046 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:49:32,047 INFO  L85        PathProgramCache]: Analyzing trace with hash 1283546159, now seen corresponding path program 1 times
[2023-12-25 20:49:32,047 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:49:32,048 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617508457]
[2023-12-25 20:49:32,048 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:32,048 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:49:32,719 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:49:32,719 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687742260]
[2023-12-25 20:49:32,721 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:32,721 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:32,721 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:49:32,722 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:49:32,740 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-12-25 20:49:43,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:49:43,869 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45353 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:49:43,967 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:49:44,920 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 24 proven. 675 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked.
[2023-12-25 20:49:44,920 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:49:45,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 888 trivial. 0 not checked.
[2023-12-25 20:49:45,045 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:49:45,045 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617508457]
[2023-12-25 20:49:45,045 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:49:45,045 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687742260]
[2023-12-25 20:49:45,045 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [687742260] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:49:45,046 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:49:45,047 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:49:45,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127488483]
[2023-12-25 20:49:45,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:49:45,052 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:49:45,052 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:49:45,055 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:49:45,055 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:49:45,056 INFO  L87              Difference]: Start difference. First operand 13524 states and 22524 transitions. Second operand  has 5 states, 5 states have (on average 1623.8) internal successors, (8119), 5 states have internal predecessors, (8119), 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)
[2023-12-25 20:49:57,643 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:49:57,643 INFO  L93              Difference]: Finished difference Result 47205 states and 78211 transitions.
[2023-12-25 20:49:57,643 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:49:57,645 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1623.8) internal successors, (8119), 5 states have internal predecessors, (8119), 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 9006
[2023-12-25 20:49:57,650 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:49:57,669 INFO  L225             Difference]: With dead ends: 47205
[2023-12-25 20:49:57,670 INFO  L226             Difference]: Without dead ends: 25129
[2023-12-25 20:49:57,750 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18011 GetRequests, 18002 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:49:57,762 INFO  L413           NwaCegarLoop]: 32045 mSDtfsCounter, 50665 mSDsluCounter, 31845 mSDsCounter, 0 mSdLazyCounter, 16938 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50665 SdHoareTripleChecker+Valid, 63890 SdHoareTripleChecker+Invalid, 18154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 16938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time
[2023-12-25 20:49:57,762 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50665 Valid, 63890 Invalid, 18154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1216 Valid, 16938 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time]
[2023-12-25 20:49:57,774 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25129 states.
[2023-12-25 20:49:57,873 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25129 to 13526.
[2023-12-25 20:49:57,884 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13526 states, 13525 states have (on average 1.6655083179297596) internal successors, (22526), 13525 states have internal predecessors, (22526), 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)
[2023-12-25 20:49:57,898 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13526 states to 13526 states and 22526 transitions.
[2023-12-25 20:49:57,898 INFO  L78                 Accepts]: Start accepts. Automaton has 13526 states and 22526 transitions. Word has length 9006
[2023-12-25 20:49:57,902 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:49:57,902 INFO  L495      AbstractCegarLoop]: Abstraction has 13526 states and 22526 transitions.
[2023-12-25 20:49:57,903 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1623.8) internal successors, (8119), 5 states have internal predecessors, (8119), 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)
[2023-12-25 20:49:57,903 INFO  L276                IsEmpty]: Start isEmpty. Operand 13526 states and 22526 transitions.
[2023-12-25 20:49:58,324 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9008
[2023-12-25 20:49:58,324 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:49:58,326 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:49:58,445 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2023-12-25 20:49:58,527 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2023-12-25 20:49:58,527 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:49:58,528 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:49:58,529 INFO  L85        PathProgramCache]: Analyzing trace with hash -1086887681, now seen corresponding path program 1 times
[2023-12-25 20:49:58,529 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:49:58,529 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483684843]
[2023-12-25 20:49:58,530 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:58,530 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:49:59,303 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:49:59,303 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584342412]
[2023-12-25 20:49:59,304 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:59,305 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:59,305 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:49:59,305 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:49:59,308 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2023-12-25 20:50:10,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:50:10,363 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45356 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:50:10,462 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:50:11,405 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 26 proven. 675 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked.
[2023-12-25 20:50:11,405 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:50:11,532 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked.
[2023-12-25 20:50:11,533 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:50:11,533 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483684843]
[2023-12-25 20:50:11,533 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:50:11,533 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584342412]
[2023-12-25 20:50:11,533 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584342412] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:50:11,533 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:50:11,534 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:50:11,534 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216118759]
[2023-12-25 20:50:11,534 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:50:11,539 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:50:11,539 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:50:11,542 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:50:11,542 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:50:11,543 INFO  L87              Difference]: Start difference. First operand 13526 states and 22526 transitions. Second operand  has 5 states, 5 states have (on average 1624.4) internal successors, (8122), 5 states have internal predecessors, (8122), 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)
[2023-12-25 20:50:26,044 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:50:26,045 INFO  L93              Difference]: Finished difference Result 47213 states and 78219 transitions.
[2023-12-25 20:50:26,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:50:26,047 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1624.4) internal successors, (8122), 5 states have internal predecessors, (8122), 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 9007
[2023-12-25 20:50:26,051 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:50:26,070 INFO  L225             Difference]: With dead ends: 47213
[2023-12-25 20:50:26,070 INFO  L226             Difference]: Without dead ends: 25130
[2023-12-25 20:50:26,078 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18013 GetRequests, 18004 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:50:26,079 INFO  L413           NwaCegarLoop]: 32037 mSDtfsCounter, 34987 mSDsluCounter, 48547 mSDsCounter, 0 mSdLazyCounter, 22682 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34987 SdHoareTripleChecker+Valid, 80584 SdHoareTripleChecker+Invalid, 23898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 22682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time
[2023-12-25 20:50:26,079 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34987 Valid, 80584 Invalid, 23898 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 22682 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time]
[2023-12-25 20:50:26,095 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25130 states.
[2023-12-25 20:50:26,208 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25130 to 13528.
[2023-12-25 20:50:26,220 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13528 states, 13527 states have (on average 1.6654099208989428) internal successors, (22528), 13527 states have internal predecessors, (22528), 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)
[2023-12-25 20:50:26,234 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13528 states to 13528 states and 22528 transitions.
[2023-12-25 20:50:26,234 INFO  L78                 Accepts]: Start accepts. Automaton has 13528 states and 22528 transitions. Word has length 9007
[2023-12-25 20:50:26,238 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:50:26,238 INFO  L495      AbstractCegarLoop]: Abstraction has 13528 states and 22528 transitions.
[2023-12-25 20:50:26,239 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1624.4) internal successors, (8122), 5 states have internal predecessors, (8122), 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)
[2023-12-25 20:50:26,239 INFO  L276                IsEmpty]: Start isEmpty. Operand 13528 states and 22528 transitions.
[2023-12-25 20:50:26,655 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9009
[2023-12-25 20:50:26,655 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:50:26,657 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:50:26,782 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2023-12-25 20:50:26,871 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2023-12-25 20:50:26,872 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:50:26,873 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:50:26,874 INFO  L85        PathProgramCache]: Analyzing trace with hash -1939233451, now seen corresponding path program 1 times
[2023-12-25 20:50:26,874 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:50:26,874 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316536584]
[2023-12-25 20:50:26,875 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:26,875 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:50:27,597 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:50:27,598 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [820057886]
[2023-12-25 20:50:27,599 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:27,599 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:50:27,600 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:50:27,601 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:50:27,601 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2023-12-25 20:50:38,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:50:38,743 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45359 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:50:38,835 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:50:39,772 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 28 proven. 675 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked.
[2023-12-25 20:50:39,773 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:50:39,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 884 trivial. 0 not checked.
[2023-12-25 20:50:39,906 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:50:39,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316536584]
[2023-12-25 20:50:39,906 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:50:39,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820057886]
[2023-12-25 20:50:39,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [820057886] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:50:39,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:50:39,907 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:50:39,907 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298261073]
[2023-12-25 20:50:39,908 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:50:39,912 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:50:39,912 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:50:39,915 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:50:39,915 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:50:39,916 INFO  L87              Difference]: Start difference. First operand 13528 states and 22528 transitions. Second operand  has 5 states, 5 states have (on average 1625.0) internal successors, (8125), 5 states have internal predecessors, (8125), 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)
[2023-12-25 20:50:52,488 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:50:52,488 INFO  L93              Difference]: Finished difference Result 47221 states and 78227 transitions.
[2023-12-25 20:50:52,489 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:50:52,491 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1625.0) internal successors, (8125), 5 states have internal predecessors, (8125), 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 9008
[2023-12-25 20:50:52,496 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:50:52,517 INFO  L225             Difference]: With dead ends: 47221
[2023-12-25 20:50:52,517 INFO  L226             Difference]: Without dead ends: 25131
[2023-12-25 20:50:52,528 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18015 GetRequests, 18006 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:50:52,528 INFO  L413           NwaCegarLoop]: 32029 mSDtfsCounter, 50659 mSDsluCounter, 31834 mSDsCounter, 0 mSdLazyCounter, 16938 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50659 SdHoareTripleChecker+Valid, 63863 SdHoareTripleChecker+Invalid, 18154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 16938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time
[2023-12-25 20:50:52,529 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50659 Valid, 63863 Invalid, 18154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1216 Valid, 16938 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time]
[2023-12-25 20:50:52,547 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25131 states.
[2023-12-25 20:50:52,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25131 to 13530.
[2023-12-25 20:50:52,669 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13530 states, 13529 states have (on average 1.6653115529603075) internal successors, (22530), 13529 states have internal predecessors, (22530), 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)
[2023-12-25 20:50:52,681 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 22530 transitions.
[2023-12-25 20:50:52,681 INFO  L78                 Accepts]: Start accepts. Automaton has 13530 states and 22530 transitions. Word has length 9008
[2023-12-25 20:50:52,685 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:50:52,686 INFO  L495      AbstractCegarLoop]: Abstraction has 13530 states and 22530 transitions.
[2023-12-25 20:50:52,687 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1625.0) internal successors, (8125), 5 states have internal predecessors, (8125), 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)
[2023-12-25 20:50:52,687 INFO  L276                IsEmpty]: Start isEmpty. Operand 13530 states and 22530 transitions.
[2023-12-25 20:50:53,130 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9010
[2023-12-25 20:50:53,130 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:50:53,137 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:50:53,248 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2023-12-25 20:50:53,352 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2023-12-25 20:50:53,352 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:50:53,353 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:50:53,354 INFO  L85        PathProgramCache]: Analyzing trace with hash 1018824795, now seen corresponding path program 1 times
[2023-12-25 20:50:53,354 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:50:53,354 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619100547]
[2023-12-25 20:50:53,355 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:53,355 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:50:54,061 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:50:54,061 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417909856]
[2023-12-25 20:50:54,063 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:54,063 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:50:54,063 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:50:54,064 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:50:54,065 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2023-12-25 20:51:04,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:51:05,063 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45363 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:51:05,160 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:51:06,100 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 30 proven. 675 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked.
[2023-12-25 20:51:06,101 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:51:06,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked.
[2023-12-25 20:51:06,246 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:51:06,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619100547]
[2023-12-25 20:51:06,247 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:51:06,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417909856]
[2023-12-25 20:51:06,247 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417909856] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:51:06,247 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:51:06,248 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:51:06,248 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810992397]
[2023-12-25 20:51:06,248 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:51:06,253 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:51:06,253 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:51:06,258 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:51:06,258 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:51:06,260 INFO  L87              Difference]: Start difference. First operand 13530 states and 22530 transitions. Second operand  has 5 states, 5 states have (on average 1625.6) internal successors, (8128), 5 states have internal predecessors, (8128), 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)
[2023-12-25 20:51:19,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:51:19,577 INFO  L93              Difference]: Finished difference Result 47229 states and 78235 transitions.
[2023-12-25 20:51:19,577 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:51:19,579 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1625.6) internal successors, (8128), 5 states have internal predecessors, (8128), 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 9009
[2023-12-25 20:51:19,584 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:51:19,603 INFO  L225             Difference]: With dead ends: 47229
[2023-12-25 20:51:19,603 INFO  L226             Difference]: Without dead ends: 25132
[2023-12-25 20:51:19,613 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18017 GetRequests, 18008 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:51:19,614 INFO  L413           NwaCegarLoop]: 32021 mSDtfsCounter, 50638 mSDsluCounter, 31830 mSDsCounter, 0 mSdLazyCounter, 16938 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50638 SdHoareTripleChecker+Valid, 63851 SdHoareTripleChecker+Invalid, 18154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 16938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time
[2023-12-25 20:51:19,614 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50638 Valid, 63851 Invalid, 18154 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 16938 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time]
[2023-12-25 20:51:19,631 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25132 states.
[2023-12-25 20:51:19,815 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25132 to 13532.
[2023-12-25 20:51:19,826 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13532 states, 13531 states have (on average 1.6652132141009535) internal successors, (22532), 13531 states have internal predecessors, (22532), 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)
[2023-12-25 20:51:19,840 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13532 states to 13532 states and 22532 transitions.
[2023-12-25 20:51:19,841 INFO  L78                 Accepts]: Start accepts. Automaton has 13532 states and 22532 transitions. Word has length 9009
[2023-12-25 20:51:19,845 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:51:19,845 INFO  L495      AbstractCegarLoop]: Abstraction has 13532 states and 22532 transitions.
[2023-12-25 20:51:19,846 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1625.6) internal successors, (8128), 5 states have internal predecessors, (8128), 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)
[2023-12-25 20:51:19,846 INFO  L276                IsEmpty]: Start isEmpty. Operand 13532 states and 22532 transitions.
[2023-12-25 20:51:20,291 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9011
[2023-12-25 20:51:20,291 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:51:20,294 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:51:20,430 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2023-12-25 20:51:20,494 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2023-12-25 20:51:20,494 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:51:20,495 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:51:20,495 INFO  L85        PathProgramCache]: Analyzing trace with hash 1106341373, now seen corresponding path program 1 times
[2023-12-25 20:51:20,495 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:51:20,495 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045156824]
[2023-12-25 20:51:20,496 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:20,496 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:51:21,248 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:51:21,248 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1622341893]
[2023-12-25 20:51:21,250 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:21,250 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:51:21,250 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:51:21,251 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:51:21,252 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2023-12-25 20:51:32,077 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:51:32,392 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45366 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:51:32,494 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:51:33,431 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 32 proven. 675 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked.
[2023-12-25 20:51:33,431 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:51:33,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked.
[2023-12-25 20:51:33,670 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:51:33,670 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045156824]
[2023-12-25 20:51:33,670 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:51:33,670 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622341893]
[2023-12-25 20:51:33,671 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622341893] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:51:33,671 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:51:33,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:51:33,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582774405]
[2023-12-25 20:51:33,672 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:51:33,677 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:51:33,677 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:51:33,681 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:51:33,681 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:51:33,682 INFO  L87              Difference]: Start difference. First operand 13532 states and 22532 transitions. Second operand  has 5 states, 5 states have (on average 1626.2) internal successors, (8131), 5 states have internal predecessors, (8131), 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)
[2023-12-25 20:51:48,087 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:51:48,087 INFO  L93              Difference]: Finished difference Result 47237 states and 78243 transitions.
[2023-12-25 20:51:48,087 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:51:48,089 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1626.2) internal successors, (8131), 5 states have internal predecessors, (8131), 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 9010
[2023-12-25 20:51:48,094 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:51:48,113 INFO  L225             Difference]: With dead ends: 47237
[2023-12-25 20:51:48,113 INFO  L226             Difference]: Without dead ends: 25133
[2023-12-25 20:51:48,124 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18019 GetRequests, 18010 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:51:48,124 INFO  L413           NwaCegarLoop]: 32013 mSDtfsCounter, 34969 mSDsluCounter, 48517 mSDsCounter, 0 mSdLazyCounter, 22682 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34969 SdHoareTripleChecker+Valid, 80530 SdHoareTripleChecker+Invalid, 23898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 22682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time
[2023-12-25 20:51:48,124 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34969 Valid, 80530 Invalid, 23898 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 22682 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time]
[2023-12-25 20:51:48,140 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25133 states.
[2023-12-25 20:51:48,253 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25133 to 13534.
[2023-12-25 20:51:48,264 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13534 states, 13533 states have (on average 1.6651149043079878) internal successors, (22534), 13533 states have internal predecessors, (22534), 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)
[2023-12-25 20:51:48,277 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13534 states to 13534 states and 22534 transitions.
[2023-12-25 20:51:48,277 INFO  L78                 Accepts]: Start accepts. Automaton has 13534 states and 22534 transitions. Word has length 9010
[2023-12-25 20:51:48,281 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:51:48,281 INFO  L495      AbstractCegarLoop]: Abstraction has 13534 states and 22534 transitions.
[2023-12-25 20:51:48,283 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1626.2) internal successors, (8131), 5 states have internal predecessors, (8131), 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)
[2023-12-25 20:51:48,283 INFO  L276                IsEmpty]: Start isEmpty. Operand 13534 states and 22534 transitions.
[2023-12-25 20:51:48,732 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9012
[2023-12-25 20:51:48,732 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:51:48,734 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:51:48,867 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2023-12-25 20:51:48,948 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2023-12-25 20:51:48,948 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:51:48,949 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:51:48,950 INFO  L85        PathProgramCache]: Analyzing trace with hash 1551611957, now seen corresponding path program 1 times
[2023-12-25 20:51:48,950 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:51:48,950 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683580252]
[2023-12-25 20:51:48,950 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:48,951 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:51:49,631 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:51:49,631 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1987397952]
[2023-12-25 20:51:49,632 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:49,633 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:51:49,633 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:51:49,634 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:51:49,635 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2023-12-25 20:52:00,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:52:00,655 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45369 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 20:52:00,750 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:52:01,636 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 34 proven. 675 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked.
[2023-12-25 20:52:01,636 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:52:01,895 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked.
[2023-12-25 20:52:01,895 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:52:01,895 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683580252]
[2023-12-25 20:52:01,895 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:52:01,895 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987397952]
[2023-12-25 20:52:01,896 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987397952] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:52:01,896 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:52:01,897 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12
[2023-12-25 20:52:01,897 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294129658]
[2023-12-25 20:52:01,897 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:52:01,902 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 20:52:01,902 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:52:01,905 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 20:52:01,905 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 20:52:01,906 INFO  L87              Difference]: Start difference. First operand 13534 states and 22534 transitions. Second operand  has 6 states, 6 states have (on average 1355.6666666666667) internal successors, (8134), 6 states have internal predecessors, (8134), 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)
[2023-12-25 20:52:28,081 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:52:28,081 INFO  L93              Difference]: Finished difference Result 58927 states and 97699 transitions.
[2023-12-25 20:52:28,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 20:52:28,083 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1355.6666666666667) internal successors, (8134), 6 states have internal predecessors, (8134), 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 9011
[2023-12-25 20:52:28,088 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:52:28,112 INFO  L225             Difference]: With dead ends: 58927
[2023-12-25 20:52:28,112 INFO  L226             Difference]: Without dead ends: 36816
[2023-12-25 20:52:28,117 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18022 GetRequests, 18010 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182
[2023-12-25 20:52:28,118 INFO  L413           NwaCegarLoop]: 32007 mSDtfsCounter, 54314 mSDsluCounter, 108639 mSDsCounter, 0 mSdLazyCounter, 46689 mSolverCounterSat, 1218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54314 SdHoareTripleChecker+Valid, 140646 SdHoareTripleChecker+Invalid, 47907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1218 IncrementalHoareTripleChecker+Valid, 46689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time
[2023-12-25 20:52:28,118 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [54314 Valid, 140646 Invalid, 47907 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1218 Valid, 46689 Invalid, 0 Unknown, 0 Unchecked, 24.9s Time]
[2023-12-25 20:52:28,135 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36816 states.
[2023-12-25 20:52:28,270 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36816 to 13536.
[2023-12-25 20:52:28,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13536 states, 13535 states have (on average 1.665016623568526) internal successors, (22536), 13535 states have internal predecessors, (22536), 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)
[2023-12-25 20:52:28,295 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13536 states to 13536 states and 22536 transitions.
[2023-12-25 20:52:28,295 INFO  L78                 Accepts]: Start accepts. Automaton has 13536 states and 22536 transitions. Word has length 9011
[2023-12-25 20:52:28,299 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:52:28,299 INFO  L495      AbstractCegarLoop]: Abstraction has 13536 states and 22536 transitions.
[2023-12-25 20:52:28,300 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1355.6666666666667) internal successors, (8134), 6 states have internal predecessors, (8134), 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)
[2023-12-25 20:52:28,300 INFO  L276                IsEmpty]: Start isEmpty. Operand 13536 states and 22536 transitions.
[2023-12-25 20:52:28,759 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9013
[2023-12-25 20:52:28,760 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:52:28,761 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:52:28,900 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2023-12-25 20:52:28,962 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:52:28,962 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:52:28,962 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:52:28,963 INFO  L85        PathProgramCache]: Analyzing trace with hash -330966237, now seen corresponding path program 1 times
[2023-12-25 20:52:28,963 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:52:28,963 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998828268]
[2023-12-25 20:52:28,964 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:52:28,964 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:52:29,656 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:52:29,656 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147065998]
[2023-12-25 20:52:29,658 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:52:29,658 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:52:29,658 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:52:29,659 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:52:29,660 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2023-12-25 20:52:40,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:52:40,570 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45372 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:52:40,662 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:52:41,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 36 proven. 675 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked.
[2023-12-25 20:52:41,612 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:52:41,746 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked.
[2023-12-25 20:52:41,746 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:52:41,746 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998828268]
[2023-12-25 20:52:41,746 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:52:41,746 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147065998]
[2023-12-25 20:52:41,746 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [147065998] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:52:41,746 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:52:41,748 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:52:41,748 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863343141]
[2023-12-25 20:52:41,748 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:52:41,752 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:52:41,752 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:52:41,754 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:52:41,754 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:52:41,755 INFO  L87              Difference]: Start difference. First operand 13536 states and 22536 transitions. Second operand  has 5 states, 5 states have (on average 1627.4) internal successors, (8137), 5 states have internal predecessors, (8137), 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)
[2023-12-25 20:52:55,937 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:52:55,937 INFO  L93              Difference]: Finished difference Result 47253 states and 78259 transitions.
[2023-12-25 20:52:55,938 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:52:55,939 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1627.4) internal successors, (8137), 5 states have internal predecessors, (8137), 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 9012
[2023-12-25 20:52:55,945 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:52:55,963 INFO  L225             Difference]: With dead ends: 47253
[2023-12-25 20:52:55,963 INFO  L226             Difference]: Without dead ends: 25135
[2023-12-25 20:52:55,973 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18023 GetRequests, 18014 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:52:55,973 INFO  L413           NwaCegarLoop]: 31997 mSDtfsCounter, 34973 mSDsluCounter, 46249 mSDsCounter, 0 mSdLazyCounter, 21806 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34973 SdHoareTripleChecker+Valid, 78246 SdHoareTripleChecker+Invalid, 23022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 21806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time
[2023-12-25 20:52:55,974 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34973 Valid, 78246 Invalid, 23022 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1216 Valid, 21806 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time]
[2023-12-25 20:52:55,992 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25135 states.
[2023-12-25 20:52:56,100 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25135 to 13538.
[2023-12-25 20:52:56,113 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13538 states, 13537 states have (on average 1.6649183718696905) internal successors, (22538), 13537 states have internal predecessors, (22538), 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)
[2023-12-25 20:52:56,127 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13538 states to 13538 states and 22538 transitions.
[2023-12-25 20:52:56,127 INFO  L78                 Accepts]: Start accepts. Automaton has 13538 states and 22538 transitions. Word has length 9012
[2023-12-25 20:52:56,131 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:52:56,131 INFO  L495      AbstractCegarLoop]: Abstraction has 13538 states and 22538 transitions.
[2023-12-25 20:52:56,132 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1627.4) internal successors, (8137), 5 states have internal predecessors, (8137), 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)
[2023-12-25 20:52:56,132 INFO  L276                IsEmpty]: Start isEmpty. Operand 13538 states and 22538 transitions.
[2023-12-25 20:52:56,549 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9014
[2023-12-25 20:52:56,549 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:52:56,551 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:52:56,678 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2023-12-25 20:52:56,752 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:52:56,752 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:52:56,752 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:52:56,753 INFO  L85        PathProgramCache]: Analyzing trace with hash -1059774319, now seen corresponding path program 1 times
[2023-12-25 20:52:56,753 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:52:56,753 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246145116]
[2023-12-25 20:52:56,754 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:52:56,754 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:52:57,564 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:52:57,564 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1525198207]
[2023-12-25 20:52:57,566 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:52:57,566 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:52:57,566 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:52:57,567 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:52:57,568 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2023-12-25 20:53:08,168 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:53:08,500 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45376 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:53:08,612 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:53:09,663 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 38 proven. 675 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked.
[2023-12-25 20:53:09,663 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:53:09,814 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked.
[2023-12-25 20:53:09,814 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:53:09,814 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246145116]
[2023-12-25 20:53:09,814 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:53:09,814 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525198207]
[2023-12-25 20:53:09,814 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525198207] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:53:09,814 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:53:09,815 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:53:09,816 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233622034]
[2023-12-25 20:53:09,816 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:53:09,820 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:53:09,820 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:53:09,823 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:53:09,824 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:53:09,825 INFO  L87              Difference]: Start difference. First operand 13538 states and 22538 transitions. Second operand  has 5 states, 5 states have (on average 1628.0) internal successors, (8140), 5 states have internal predecessors, (8140), 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)
[2023-12-25 20:53:22,661 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:53:22,661 INFO  L93              Difference]: Finished difference Result 47261 states and 78267 transitions.
[2023-12-25 20:53:22,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:53:22,663 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1628.0) internal successors, (8140), 5 states have internal predecessors, (8140), 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 9013
[2023-12-25 20:53:22,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:53:22,690 INFO  L225             Difference]: With dead ends: 47261
[2023-12-25 20:53:22,690 INFO  L226             Difference]: Without dead ends: 25136
[2023-12-25 20:53:22,697 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18025 GetRequests, 18016 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:53:22,697 INFO  L413           NwaCegarLoop]: 31989 mSDtfsCounter, 50619 mSDsluCounter, 31809 mSDsCounter, 0 mSdLazyCounter, 16938 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50619 SdHoareTripleChecker+Valid, 63798 SdHoareTripleChecker+Invalid, 18154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 16938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:53:22,697 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50619 Valid, 63798 Invalid, 18154 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 16938 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time]
[2023-12-25 20:53:22,715 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25136 states.
[2023-12-25 20:53:22,838 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25136 to 13540.
[2023-12-25 20:53:22,851 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13540 states, 13539 states have (on average 1.6648201491986114) internal successors, (22540), 13539 states have internal predecessors, (22540), 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)
[2023-12-25 20:53:22,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13540 states to 13540 states and 22540 transitions.
[2023-12-25 20:53:22,866 INFO  L78                 Accepts]: Start accepts. Automaton has 13540 states and 22540 transitions. Word has length 9013
[2023-12-25 20:53:22,871 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:53:22,871 INFO  L495      AbstractCegarLoop]: Abstraction has 13540 states and 22540 transitions.
[2023-12-25 20:53:22,872 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1628.0) internal successors, (8140), 5 states have internal predecessors, (8140), 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)
[2023-12-25 20:53:22,872 INFO  L276                IsEmpty]: Start isEmpty. Operand 13540 states and 22540 transitions.
[2023-12-25 20:53:23,328 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9015
[2023-12-25 20:53:23,328 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:53:23,330 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:53:23,472 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0
[2023-12-25 20:53:23,530 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:53:23,530 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:53:23,531 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:53:23,532 INFO  L85        PathProgramCache]: Analyzing trace with hash -1484434229, now seen corresponding path program 1 times
[2023-12-25 20:53:23,532 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:53:23,532 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265858022]
[2023-12-25 20:53:23,532 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:53:23,533 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:53:24,287 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:53:24,287 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237348928]
[2023-12-25 20:53:24,288 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:53:24,289 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:53:24,289 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:53:24,289 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:53:24,291 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2023-12-25 20:53:34,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:53:35,133 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45379 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 20:53:35,242 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:53:36,374 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 40 proven. 675 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked.
[2023-12-25 20:53:36,374 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:53:36,549 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked.
[2023-12-25 20:53:36,549 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:53:36,549 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265858022]
[2023-12-25 20:53:36,549 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:53:36,549 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237348928]
[2023-12-25 20:53:36,549 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [237348928] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:53:36,549 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:53:36,551 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12
[2023-12-25 20:53:36,551 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601341682]
[2023-12-25 20:53:36,551 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:53:36,556 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 20:53:36,556 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:53:36,558 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 20:53:36,559 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 20:53:36,559 INFO  L87              Difference]: Start difference. First operand 13540 states and 22540 transitions. Second operand  has 6 states, 6 states have (on average 1357.1666666666667) internal successors, (8143), 6 states have internal predecessors, (8143), 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)
[2023-12-25 20:53:59,862 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:53:59,863 INFO  L93              Difference]: Finished difference Result 58966 states and 97744 transitions.
[2023-12-25 20:53:59,863 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 20:53:59,865 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1357.1666666666667) internal successors, (8143), 6 states have internal predecessors, (8143), 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 9014
[2023-12-25 20:53:59,870 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:53:59,892 INFO  L225             Difference]: With dead ends: 58966
[2023-12-25 20:53:59,892 INFO  L226             Difference]: Without dead ends: 36834
[2023-12-25 20:53:59,898 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18028 GetRequests, 18016 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182
[2023-12-25 20:53:59,899 INFO  L413           NwaCegarLoop]: 31983 mSDtfsCounter, 69963 mSDsluCounter, 77438 mSDsCounter, 0 mSdLazyCounter, 36076 mSolverCounterSat, 1219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69963 SdHoareTripleChecker+Valid, 109421 SdHoareTripleChecker+Invalid, 37295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1219 IncrementalHoareTripleChecker+Valid, 36076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:53:59,899 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [69963 Valid, 109421 Invalid, 37295 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1219 Valid, 36076 Invalid, 0 Unknown, 0 Unchecked, 22.1s Time]
[2023-12-25 20:53:59,919 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36834 states.
[2023-12-25 20:54:00,064 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36834 to 13542.
[2023-12-25 20:54:00,076 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13542 states, 13541 states have (on average 1.6647219555424266) internal successors, (22542), 13541 states have internal predecessors, (22542), 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)
[2023-12-25 20:54:00,091 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13542 states to 13542 states and 22542 transitions.
[2023-12-25 20:54:00,091 INFO  L78                 Accepts]: Start accepts. Automaton has 13542 states and 22542 transitions. Word has length 9014
[2023-12-25 20:54:00,095 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:54:00,095 INFO  L495      AbstractCegarLoop]: Abstraction has 13542 states and 22542 transitions.
[2023-12-25 20:54:00,096 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1357.1666666666667) internal successors, (8143), 6 states have internal predecessors, (8143), 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)
[2023-12-25 20:54:00,096 INFO  L276                IsEmpty]: Start isEmpty. Operand 13542 states and 22542 transitions.
[2023-12-25 20:54:00,554 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9016
[2023-12-25 20:54:00,555 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:54:00,556 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:54:00,698 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2023-12-25 20:54:00,760 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:54:00,761 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:54:00,761 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:54:00,762 INFO  L85        PathProgramCache]: Analyzing trace with hash 1675758699, now seen corresponding path program 1 times
[2023-12-25 20:54:00,762 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:54:00,762 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266983361]
[2023-12-25 20:54:00,763 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:00,763 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:54:01,469 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:54:01,469 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686895465]
[2023-12-25 20:54:01,471 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:01,471 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:54:01,471 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:54:01,472 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:54:01,473 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2023-12-25 20:54:12,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:54:12,575 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45382 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:54:12,674 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:54:13,658 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 42 proven. 675 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked.
[2023-12-25 20:54:13,658 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:54:13,806 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked.
[2023-12-25 20:54:13,807 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:54:13,807 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266983361]
[2023-12-25 20:54:13,807 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:54:13,807 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686895465]
[2023-12-25 20:54:13,807 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686895465] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:54:13,807 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:54:13,808 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:54:13,809 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549230387]
[2023-12-25 20:54:13,809 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:54:13,813 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:54:13,813 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:54:13,816 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:54:13,816 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:54:13,817 INFO  L87              Difference]: Start difference. First operand 13542 states and 22542 transitions. Second operand  has 5 states, 5 states have (on average 1629.2) internal successors, (8146), 5 states have internal predecessors, (8146), 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)
[2023-12-25 20:54:26,731 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:54:26,731 INFO  L93              Difference]: Finished difference Result 47277 states and 78283 transitions.
[2023-12-25 20:54:26,733 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:54:26,734 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1629.2) internal successors, (8146), 5 states have internal predecessors, (8146), 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 9015
[2023-12-25 20:54:26,740 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:54:26,757 INFO  L225             Difference]: With dead ends: 47277
[2023-12-25 20:54:26,757 INFO  L226             Difference]: Without dead ends: 25138
[2023-12-25 20:54:26,767 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18029 GetRequests, 18020 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:54:26,767 INFO  L413           NwaCegarLoop]: 31973 mSDtfsCounter, 50584 mSDsluCounter, 31800 mSDsCounter, 0 mSdLazyCounter, 16938 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50584 SdHoareTripleChecker+Valid, 63773 SdHoareTripleChecker+Invalid, 18154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 16938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time
[2023-12-25 20:54:26,767 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50584 Valid, 63773 Invalid, 18154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1216 Valid, 16938 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time]
[2023-12-25 20:54:26,783 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25138 states.
[2023-12-25 20:54:26,962 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25138 to 13544.
[2023-12-25 20:54:26,972 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13544 states, 13543 states have (on average 1.6646237908882817) internal successors, (22544), 13543 states have internal predecessors, (22544), 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)
[2023-12-25 20:54:26,985 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13544 states to 13544 states and 22544 transitions.
[2023-12-25 20:54:26,985 INFO  L78                 Accepts]: Start accepts. Automaton has 13544 states and 22544 transitions. Word has length 9015
[2023-12-25 20:54:26,988 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:54:26,989 INFO  L495      AbstractCegarLoop]: Abstraction has 13544 states and 22544 transitions.
[2023-12-25 20:54:26,989 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1629.2) internal successors, (8146), 5 states have internal predecessors, (8146), 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)
[2023-12-25 20:54:26,989 INFO  L276                IsEmpty]: Start isEmpty. Operand 13544 states and 22544 transitions.
[2023-12-25 20:54:27,418 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9017
[2023-12-25 20:54:27,418 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:54:27,420 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:54:27,556 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0
[2023-12-25 20:54:27,621 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:54:27,621 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:54:27,621 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:54:27,622 INFO  L85        PathProgramCache]: Analyzing trace with hash 772892145, now seen corresponding path program 1 times
[2023-12-25 20:54:27,622 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:54:27,622 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16467766]
[2023-12-25 20:54:27,623 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:27,623 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:54:28,306 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:54:28,307 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176331847]
[2023-12-25 20:54:28,308 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:28,308 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:54:28,309 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:54:28,309 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:54:28,310 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2023-12-25 20:54:38,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:54:39,195 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45385 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:54:39,286 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:54:40,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 44 proven. 675 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked.
[2023-12-25 20:54:40,164 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:54:40,316 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked.
[2023-12-25 20:54:40,316 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:54:40,316 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16467766]
[2023-12-25 20:54:40,316 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:54:40,316 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176331847]
[2023-12-25 20:54:40,316 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176331847] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:54:40,316 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:54:40,318 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:54:40,318 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843366946]
[2023-12-25 20:54:40,318 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:54:40,322 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:54:40,322 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:54:40,325 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:54:40,325 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:54:40,326 INFO  L87              Difference]: Start difference. First operand 13544 states and 22544 transitions. Second operand  has 5 states, 5 states have (on average 1629.8) internal successors, (8149), 5 states have internal predecessors, (8149), 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)
[2023-12-25 20:54:54,513 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:54:54,513 INFO  L93              Difference]: Finished difference Result 47285 states and 78291 transitions.
[2023-12-25 20:54:54,513 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:54:54,515 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1629.8) internal successors, (8149), 5 states have internal predecessors, (8149), 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 9016
[2023-12-25 20:54:54,521 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:54:54,543 INFO  L225             Difference]: With dead ends: 47285
[2023-12-25 20:54:54,543 INFO  L226             Difference]: Without dead ends: 25139
[2023-12-25 20:54:54,555 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18031 GetRequests, 18022 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:54:54,557 INFO  L413           NwaCegarLoop]: 31965 mSDtfsCounter, 34933 mSDsluCounter, 48457 mSDsCounter, 0 mSdLazyCounter, 22682 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34933 SdHoareTripleChecker+Valid, 80422 SdHoareTripleChecker+Invalid, 23898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 22682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time
[2023-12-25 20:54:54,557 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34933 Valid, 80422 Invalid, 23898 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 22682 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time]
[2023-12-25 20:54:54,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25139 states.
[2023-12-25 20:54:54,699 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25139 to 13546.
[2023-12-25 20:54:54,711 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13546 states, 13545 states have (on average 1.6645256552233296) internal successors, (22546), 13545 states have internal predecessors, (22546), 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)
[2023-12-25 20:54:54,725 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13546 states to 13546 states and 22546 transitions.
[2023-12-25 20:54:54,725 INFO  L78                 Accepts]: Start accepts. Automaton has 13546 states and 22546 transitions. Word has length 9016
[2023-12-25 20:54:54,729 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:54:54,729 INFO  L495      AbstractCegarLoop]: Abstraction has 13546 states and 22546 transitions.
[2023-12-25 20:54:54,730 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1629.8) internal successors, (8149), 5 states have internal predecessors, (8149), 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)
[2023-12-25 20:54:54,730 INFO  L276                IsEmpty]: Start isEmpty. Operand 13546 states and 22546 transitions.
[2023-12-25 20:54:55,160 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9018
[2023-12-25 20:54:55,160 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:54:55,162 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:54:55,299 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2023-12-25 20:54:55,362 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:54:55,363 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:54:55,364 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:54:55,364 INFO  L85        PathProgramCache]: Analyzing trace with hash -1820639801, now seen corresponding path program 1 times
[2023-12-25 20:54:55,364 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:54:55,365 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874880246]
[2023-12-25 20:54:55,365 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:55,365 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:54:56,131 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:54:56,131 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24174389]
[2023-12-25 20:54:56,133 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:56,133 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:54:56,133 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:54:56,134 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:54:56,137 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2023-12-25 20:55:06,790 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:55:07,119 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45389 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:55:07,271 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:55:08,187 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 46 proven. 675 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked.
[2023-12-25 20:55:08,187 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:55:08,342 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked.
[2023-12-25 20:55:08,342 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:55:08,342 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874880246]
[2023-12-25 20:55:08,343 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:55:08,343 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24174389]
[2023-12-25 20:55:08,343 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [24174389] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:55:08,343 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:55:08,344 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:55:08,344 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135344488]
[2023-12-25 20:55:08,344 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:55:08,348 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:55:08,348 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:55:08,351 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:55:08,351 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:55:08,352 INFO  L87              Difference]: Start difference. First operand 13546 states and 22546 transitions. Second operand  has 5 states, 5 states have (on average 1630.4) internal successors, (8152), 5 states have internal predecessors, (8152), 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)
[2023-12-25 20:55:20,882 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:55:20,882 INFO  L93              Difference]: Finished difference Result 47293 states and 78299 transitions.
[2023-12-25 20:55:20,882 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:55:20,884 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1630.4) internal successors, (8152), 5 states have internal predecessors, (8152), 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 9017
[2023-12-25 20:55:20,889 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:55:20,905 INFO  L225             Difference]: With dead ends: 47293
[2023-12-25 20:55:20,905 INFO  L226             Difference]: Without dead ends: 25140
[2023-12-25 20:55:20,914 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18033 GetRequests, 18024 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:55:20,915 INFO  L413           NwaCegarLoop]: 31957 mSDtfsCounter, 50587 mSDsluCounter, 31789 mSDsCounter, 0 mSdLazyCounter, 16938 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50587 SdHoareTripleChecker+Valid, 63746 SdHoareTripleChecker+Invalid, 18154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 16938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time
[2023-12-25 20:55:20,915 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50587 Valid, 63746 Invalid, 18154 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 16938 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time]
[2023-12-25 20:55:20,933 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25140 states.
[2023-12-25 20:55:21,051 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25140 to 13548.
[2023-12-25 20:55:21,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13548 states, 13547 states have (on average 1.6644275485347308) internal successors, (22548), 13547 states have internal predecessors, (22548), 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)
[2023-12-25 20:55:21,079 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13548 states to 13548 states and 22548 transitions.
[2023-12-25 20:55:21,080 INFO  L78                 Accepts]: Start accepts. Automaton has 13548 states and 22548 transitions. Word has length 9017
[2023-12-25 20:55:21,084 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:55:21,084 INFO  L495      AbstractCegarLoop]: Abstraction has 13548 states and 22548 transitions.
[2023-12-25 20:55:21,085 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1630.4) internal successors, (8152), 5 states have internal predecessors, (8152), 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)
[2023-12-25 20:55:21,085 INFO  L276                IsEmpty]: Start isEmpty. Operand 13548 states and 22548 transitions.
[2023-12-25 20:55:21,511 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9019
[2023-12-25 20:55:21,511 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:55:21,513 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:55:21,642 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2023-12-25 20:55:21,713 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2023-12-25 20:55:21,714 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:55:21,714 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:55:21,715 INFO  L85        PathProgramCache]: Analyzing trace with hash -1064791911, now seen corresponding path program 1 times
[2023-12-25 20:55:21,715 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:55:21,715 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620425702]
[2023-12-25 20:55:21,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:21,716 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:55:22,424 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:55:22,424 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357821275]
[2023-12-25 20:55:22,426 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:22,426 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:55:22,426 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:55:22,427 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:55:22,427 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2023-12-25 20:55:32,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:55:33,260 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45392 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:55:33,354 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:55:34,220 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 48 proven. 675 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked.
[2023-12-25 20:55:34,221 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:55:34,471 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked.
[2023-12-25 20:55:34,471 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:55:34,472 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620425702]
[2023-12-25 20:55:34,472 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:55:34,472 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357821275]
[2023-12-25 20:55:34,472 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [357821275] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:55:34,472 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:55:34,473 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:55:34,473 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653925792]
[2023-12-25 20:55:34,473 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:55:34,478 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:55:34,478 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:55:34,481 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:55:34,481 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:55:34,482 INFO  L87              Difference]: Start difference. First operand 13548 states and 22548 transitions. Second operand  has 5 states, 5 states have (on average 1631.0) internal successors, (8155), 5 states have internal predecessors, (8155), 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)
[2023-12-25 20:55:46,910 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:55:46,910 INFO  L93              Difference]: Finished difference Result 47301 states and 78307 transitions.
[2023-12-25 20:55:46,911 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:55:46,912 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1631.0) internal successors, (8155), 5 states have internal predecessors, (8155), 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 9018
[2023-12-25 20:55:46,917 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:55:46,936 INFO  L225             Difference]: With dead ends: 47301
[2023-12-25 20:55:46,936 INFO  L226             Difference]: Without dead ends: 25141
[2023-12-25 20:55:46,948 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18035 GetRequests, 18026 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:55:46,948 INFO  L413           NwaCegarLoop]: 31949 mSDtfsCounter, 50579 mSDsluCounter, 31784 mSDsCounter, 0 mSdLazyCounter, 16938 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50579 SdHoareTripleChecker+Valid, 63733 SdHoareTripleChecker+Invalid, 18154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 16938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time
[2023-12-25 20:55:46,948 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50579 Valid, 63733 Invalid, 18154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1216 Valid, 16938 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time]
[2023-12-25 20:55:46,964 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25141 states.
[2023-12-25 20:55:47,081 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25141 to 13550.
[2023-12-25 20:55:47,091 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13550 states, 13549 states have (on average 1.6643294708096539) internal successors, (22550), 13549 states have internal predecessors, (22550), 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)
[2023-12-25 20:55:47,104 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13550 states to 13550 states and 22550 transitions.
[2023-12-25 20:55:47,104 INFO  L78                 Accepts]: Start accepts. Automaton has 13550 states and 22550 transitions. Word has length 9018
[2023-12-25 20:55:47,108 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:55:47,108 INFO  L495      AbstractCegarLoop]: Abstraction has 13550 states and 22550 transitions.
[2023-12-25 20:55:47,109 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1631.0) internal successors, (8155), 5 states have internal predecessors, (8155), 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)
[2023-12-25 20:55:47,109 INFO  L276                IsEmpty]: Start isEmpty. Operand 13550 states and 22550 transitions.
[2023-12-25 20:55:47,544 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9020
[2023-12-25 20:55:47,545 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:55:47,546 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:55:47,667 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0
[2023-12-25 20:55:47,747 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2023-12-25 20:55:47,747 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:55:47,748 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:55:47,749 INFO  L85        PathProgramCache]: Analyzing trace with hash 1384637857, now seen corresponding path program 1 times
[2023-12-25 20:55:47,749 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:55:47,749 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408121051]
[2023-12-25 20:55:47,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:47,750 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:55:48,534 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:55:48,534 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693850847]
[2023-12-25 20:55:48,536 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:48,536 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:55:48,536 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:55:48,537 INFO  L229       MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:55:48,537 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2023-12-25 20:55:59,197 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:55:59,461 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45395 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 20:55:59,552 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:56:00,472 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 50 proven. 675 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked.
[2023-12-25 20:56:00,472 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:56:00,672 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked.
[2023-12-25 20:56:00,673 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:56:00,673 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408121051]
[2023-12-25 20:56:00,673 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:56:00,673 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693850847]
[2023-12-25 20:56:00,673 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693850847] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:56:00,673 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:56:00,674 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12
[2023-12-25 20:56:00,674 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995083203]
[2023-12-25 20:56:00,674 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:56:00,678 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 20:56:00,678 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:56:00,681 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 20:56:00,681 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 20:56:00,682 INFO  L87              Difference]: Start difference. First operand 13550 states and 22550 transitions. Second operand  has 6 states, 6 states have (on average 1359.6666666666667) internal successors, (8158), 6 states have internal predecessors, (8158), 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)
[2023-12-25 20:56:23,385 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:56:23,385 INFO  L93              Difference]: Finished difference Result 59031 states and 97819 transitions.
[2023-12-25 20:56:23,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 20:56:23,387 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1359.6666666666667) internal successors, (8158), 6 states have internal predecessors, (8158), 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 9019
[2023-12-25 20:56:23,393 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:56:23,420 INFO  L225             Difference]: With dead ends: 59031
[2023-12-25 20:56:23,420 INFO  L226             Difference]: Without dead ends: 36864
[2023-12-25 20:56:23,428 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18038 GetRequests, 18026 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182
[2023-12-25 20:56:23,428 INFO  L413           NwaCegarLoop]: 31943 mSDtfsCounter, 69924 mSDsluCounter, 77387 mSDsCounter, 0 mSdLazyCounter, 36076 mSolverCounterSat, 1218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69924 SdHoareTripleChecker+Valid, 109330 SdHoareTripleChecker+Invalid, 37294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1218 IncrementalHoareTripleChecker+Valid, 36076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time
[2023-12-25 20:56:23,429 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [69924 Valid, 109330 Invalid, 37294 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1218 Valid, 36076 Invalid, 0 Unknown, 0 Unchecked, 21.7s Time]
[2023-12-25 20:56:23,449 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36864 states.
[2023-12-25 20:56:23,595 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36864 to 13552.
[2023-12-25 20:56:23,606 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13552 states, 13551 states have (on average 1.664231422035274) internal successors, (22552), 13551 states have internal predecessors, (22552), 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)
[2023-12-25 20:56:23,620 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13552 states to 13552 states and 22552 transitions.
[2023-12-25 20:56:23,620 INFO  L78                 Accepts]: Start accepts. Automaton has 13552 states and 22552 transitions. Word has length 9019
[2023-12-25 20:56:23,624 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:56:23,624 INFO  L495      AbstractCegarLoop]: Abstraction has 13552 states and 22552 transitions.
[2023-12-25 20:56:23,625 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1359.6666666666667) internal successors, (8158), 6 states have internal predecessors, (8158), 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)
[2023-12-25 20:56:23,625 INFO  L276                IsEmpty]: Start isEmpty. Operand 13552 states and 22552 transitions.
[2023-12-25 20:56:24,101 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9021
[2023-12-25 20:56:24,101 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:56:24,103 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:56:24,230 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0
[2023-12-25 20:56:24,303 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25
[2023-12-25 20:56:24,304 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:56:24,304 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:56:24,305 INFO  L85        PathProgramCache]: Analyzing trace with hash 1930937791, now seen corresponding path program 1 times
[2023-12-25 20:56:24,305 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:56:24,305 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441984901]
[2023-12-25 20:56:24,306 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:56:24,306 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:56:25,065 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:56:25,065 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277591251]
[2023-12-25 20:56:25,067 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:56:25,067 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:56:25,067 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:56:25,068 INFO  L229       MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:56:25,069 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2023-12-25 20:56:35,742 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:56:36,056 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45398 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:56:36,227 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:56:37,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 52 proven. 675 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked.
[2023-12-25 20:56:37,147 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:56:37,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked.
[2023-12-25 20:56:37,306 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:56:37,306 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441984901]
[2023-12-25 20:56:37,306 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:56:37,306 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277591251]
[2023-12-25 20:56:37,306 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [277591251] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:56:37,306 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:56:37,307 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:56:37,307 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673768872]
[2023-12-25 20:56:37,308 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:56:37,312 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:56:37,312 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:56:37,316 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:56:37,316 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:56:37,317 INFO  L87              Difference]: Start difference. First operand 13552 states and 22552 transitions. Second operand  has 5 states, 5 states have (on average 1632.2) internal successors, (8161), 5 states have internal predecessors, (8161), 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)
[2023-12-25 20:56:51,535 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:56:51,535 INFO  L93              Difference]: Finished difference Result 47317 states and 78323 transitions.
[2023-12-25 20:56:51,536 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:56:51,537 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1632.2) internal successors, (8161), 5 states have internal predecessors, (8161), 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 9020
[2023-12-25 20:56:51,542 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:56:51,561 INFO  L225             Difference]: With dead ends: 47317
[2023-12-25 20:56:51,561 INFO  L226             Difference]: Without dead ends: 25143
[2023-12-25 20:56:51,572 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18039 GetRequests, 18030 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:56:51,572 INFO  L413           NwaCegarLoop]: 31933 mSDtfsCounter, 34933 mSDsluCounter, 46185 mSDsCounter, 0 mSdLazyCounter, 21806 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34933 SdHoareTripleChecker+Valid, 78118 SdHoareTripleChecker+Invalid, 23022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 21806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time
[2023-12-25 20:56:51,572 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34933 Valid, 78118 Invalid, 23022 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 21806 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time]
[2023-12-25 20:56:51,588 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25143 states.
[2023-12-25 20:56:51,702 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25143 to 13554.
[2023-12-25 20:56:51,712 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13554 states, 13553 states have (on average 1.6641334021987753) internal successors, (22554), 13553 states have internal predecessors, (22554), 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)
[2023-12-25 20:56:51,800 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13554 states to 13554 states and 22554 transitions.
[2023-12-25 20:56:51,800 INFO  L78                 Accepts]: Start accepts. Automaton has 13554 states and 22554 transitions. Word has length 9020
[2023-12-25 20:56:51,804 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:56:51,804 INFO  L495      AbstractCegarLoop]: Abstraction has 13554 states and 22554 transitions.
[2023-12-25 20:56:51,805 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1632.2) internal successors, (8161), 5 states have internal predecessors, (8161), 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)
[2023-12-25 20:56:51,805 INFO  L276                IsEmpty]: Start isEmpty. Operand 13554 states and 22554 transitions.
[2023-12-25 20:56:52,253 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9022
[2023-12-25 20:56:52,253 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:56:52,255 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:56:52,392 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0
[2023-12-25 20:56:52,455 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:56:52,456 INFO  L420      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:56:52,457 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:56:52,458 INFO  L85        PathProgramCache]: Analyzing trace with hash -1861623811, now seen corresponding path program 1 times
[2023-12-25 20:56:52,458 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:56:52,458 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158086956]
[2023-12-25 20:56:52,458 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:56:52,459 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:56:53,227 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:56:53,227 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306515317]
[2023-12-25 20:56:53,229 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:56:53,229 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:56:53,229 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:56:53,230 INFO  L229       MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:56:53,230 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2023-12-25 20:57:03,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:57:04,065 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45402 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:57:04,150 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:57:05,079 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 54 proven. 675 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked.
[2023-12-25 20:57:05,079 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:57:05,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked.
[2023-12-25 20:57:05,235 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:57:05,235 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158086956]
[2023-12-25 20:57:05,235 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:57:05,236 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306515317]
[2023-12-25 20:57:05,236 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306515317] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:57:05,236 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:57:05,237 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:57:05,237 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947980328]
[2023-12-25 20:57:05,237 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:57:05,241 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:57:05,241 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:57:05,243 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:57:05,243 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:57:05,244 INFO  L87              Difference]: Start difference. First operand 13554 states and 22554 transitions. Second operand  has 5 states, 5 states have (on average 1632.8) internal successors, (8164), 5 states have internal predecessors, (8164), 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)
[2023-12-25 20:57:19,545 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:57:19,546 INFO  L93              Difference]: Finished difference Result 47325 states and 78331 transitions.
[2023-12-25 20:57:19,546 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:57:19,548 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1632.8) internal successors, (8164), 5 states have internal predecessors, (8164), 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 9021
[2023-12-25 20:57:19,554 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:57:19,576 INFO  L225             Difference]: With dead ends: 47325
[2023-12-25 20:57:19,576 INFO  L226             Difference]: Without dead ends: 25144
[2023-12-25 20:57:19,587 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18041 GetRequests, 18032 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-25 20:57:19,587 INFO  L413           NwaCegarLoop]: 31925 mSDtfsCounter, 34903 mSDsluCounter, 48407 mSDsCounter, 0 mSdLazyCounter, 22682 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34903 SdHoareTripleChecker+Valid, 80332 SdHoareTripleChecker+Invalid, 23898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 22682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time
[2023-12-25 20:57:19,588 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34903 Valid, 80332 Invalid, 23898 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1216 Valid, 22682 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time]
[2023-12-25 20:57:19,610 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25144 states.
[2023-12-25 20:57:19,743 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25144 to 13556.
[2023-12-25 20:57:19,757 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13556 states, 13555 states have (on average 1.6640354112873479) internal successors, (22556), 13555 states have internal predecessors, (22556), 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)
[2023-12-25 20:57:19,772 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13556 states to 13556 states and 22556 transitions.
[2023-12-25 20:57:19,772 INFO  L78                 Accepts]: Start accepts. Automaton has 13556 states and 22556 transitions. Word has length 9021
[2023-12-25 20:57:19,776 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:57:19,776 INFO  L495      AbstractCegarLoop]: Abstraction has 13556 states and 22556 transitions.
[2023-12-25 20:57:19,778 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1632.8) internal successors, (8164), 5 states have internal predecessors, (8164), 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)
[2023-12-25 20:57:19,778 INFO  L276                IsEmpty]: Start isEmpty. Operand 13556 states and 22556 transitions.
[2023-12-25 20:57:20,220 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9023
[2023-12-25 20:57:20,221 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:57:20,222 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 20:57:20,356 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0
[2023-12-25 20:57:20,423 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2023-12-25 20:57:20,423 INFO  L420      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:57:20,424 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:57:20,424 INFO  L85        PathProgramCache]: Analyzing trace with hash 1367777639, now seen corresponding path program 1 times
[2023-12-25 20:57:20,425 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:57:20,425 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106728405]
[2023-12-25 20:57:20,425 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:57:20,425 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:57:21,161 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:57:21,162 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286155866]
[2023-12-25 20:57:21,163 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:57:21,163 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:57:21,163 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:57:21,164 INFO  L229       MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:57:21,165 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2023-12-25 20:57:31,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:57:31,933 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45405 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:57:32,158 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:57:33,019 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 56 proven. 675 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked.
[2023-12-25 20:57:33,019 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:57:33,180 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked.
[2023-12-25 20:57:33,180 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:57:33,181 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106728405]
[2023-12-25 20:57:33,181 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:57:33,181 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286155866]
[2023-12-25 20:57:33,181 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [286155866] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:57:33,181 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:57:33,182 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:57:33,182 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350904483]
[2023-12-25 20:57:33,182 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:57:33,187 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:57:33,187 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:57:33,190 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:57:33,190 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:57:33,191 INFO  L87              Difference]: Start difference. First operand 13556 states and 22556 transitions. Second operand  has 5 states, 5 states have (on average 1633.4) internal successors, (8167), 5 states have internal predecessors, (8167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
Received shutdown request...
[2023-12-25 20:57:34,395 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 20:57:34,395 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18042 GetRequests, 18034 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:57:34,395 INFO  L413           NwaCegarLoop]: 3541 mSDtfsCounter, 727 mSDsluCounter, 4887 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 8428 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2023-12-25 20:57:34,395 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 8428 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2023-12-25 20:57:34,396 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-25 20:57:34,405 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 20:57:34,406 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
[2023-12-25 20:57:34,532 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0
[2023-12-25 20:57:34,604 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28
[2023-12-25 20:57:34,605 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (13556states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (2559 states constructed, input type IntersectNwa).
[2023-12-25 20:57:34,609 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, 1, 1, 1, 1, 1, 1]
[2023-12-25 20:57:34,611 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-25 20:57:34,612 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 08:57:34 BoogieIcfgContainer
[2023-12-25 20:57:34,612 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-25 20:57:34,612 INFO  L158              Benchmark]: Toolchain (without parser) took 764224.87ms. Allocated memory was 229.6MB in the beginning and 6.1GB in the end (delta: 5.9GB). Free memory was 170.8MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB.
[2023-12-25 20:57:34,612 INFO  L158              Benchmark]: CDTParser took 0.08ms. Allocated memory is still 186.6MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 20:57:34,613 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 2167.59ms. Allocated memory was 229.6MB in the beginning and 792.7MB in the end (delta: 563.1MB). Free memory was 170.8MB in the beginning and 536.7MB in the end (delta: -365.8MB). Peak memory consumption was 284.8MB. Max. memory is 8.0GB.
[2023-12-25 20:57:34,613 INFO  L158              Benchmark]: Boogie Procedure Inliner took 4518.52ms. Allocated memory was 792.7MB in the beginning and 4.4GB in the end (delta: 3.6GB). Free memory was 536.7MB in the beginning and 3.5GB in the end (delta: -3.0GB). Peak memory consumption was 796.9MB. Max. memory is 8.0GB.
[2023-12-25 20:57:34,613 INFO  L158              Benchmark]: Boogie Preprocessor took 3908.87ms. Allocated memory is still 4.4GB. Free memory was 3.5GB in the beginning and 3.2GB in the end (delta: 351.1MB). Peak memory consumption was 392.2MB. Max. memory is 8.0GB.
[2023-12-25 20:57:34,613 INFO  L158              Benchmark]: RCFGBuilder took 20305.43ms. Allocated memory was 4.4GB in the beginning and 5.7GB in the end (delta: 1.3GB). Free memory was 3.2GB in the beginning and 3.9GB in the end (delta: -696.1MB). Peak memory consumption was 800.7MB. Max. memory is 8.0GB.
[2023-12-25 20:57:34,613 INFO  L158              Benchmark]: TraceAbstraction took 733318.73ms. Allocated memory was 5.7GB in the beginning and 6.1GB in the end (delta: 466.6MB). Free memory was 3.9GB in the beginning and 3.1GB in the end (delta: 758.0MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB.
[2023-12-25 20:57:34,614 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.08ms. Allocated memory is still 186.6MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 2167.59ms. Allocated memory was 229.6MB in the beginning and 792.7MB in the end (delta: 563.1MB). Free memory was 170.8MB in the beginning and 536.7MB in the end (delta: -365.8MB). Peak memory consumption was 284.8MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 4518.52ms. Allocated memory was 792.7MB in the beginning and 4.4GB in the end (delta: 3.6GB). Free memory was 536.7MB in the beginning and 3.5GB in the end (delta: -3.0GB). Peak memory consumption was 796.9MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 3908.87ms. Allocated memory is still 4.4GB. Free memory was 3.5GB in the beginning and 3.2GB in the end (delta: 351.1MB). Peak memory consumption was 392.2MB. Max. memory is 8.0GB.
 * RCFGBuilder took 20305.43ms. Allocated memory was 4.4GB in the beginning and 5.7GB in the end (delta: 1.3GB). Free memory was 3.2GB in the beginning and 3.9GB in the end (delta: -696.1MB). Peak memory consumption was 800.7MB. Max. memory is 8.0GB.
 * TraceAbstraction took 733318.73ms. Allocated memory was 5.7GB in the beginning and 6.1GB in the end (delta: 466.6MB). Free memory was 3.9GB in the beginning and 3.1GB in the end (delta: 758.0MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (13556states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (2559 states constructed, input type IntersectNwa).
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 12145 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 733.3s, OverallIterations: 29, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 11.2s, AutomataDifference: 375.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1172812 SdHoareTripleChecker+Valid, 353.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1172812 mSDsluCounter, 2226667 SdHoareTripleChecker+Invalid, 287.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1369245 mSDsCounter, 29199 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 571600 IncrementalHoareTripleChecker+Invalid, 600799 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29199 mSolverCounterUnsat, 857422 mSDtfsCounter, 571600 mSolverCounterSat, 5.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 450501 GetRequests, 450252 SyntacticMatches, 0 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13556occurred in iteration=28, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.5s AutomataMinimizationTime, 28 MinimizatonAttempts, 348333 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 66.9s SsaConstructionTime, 171.1s SatisfiabilityAnalysisTime, 46.9s InterpolantComputationTime, 230320 NumberOfCodeBlocks, 230320 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 455516 ConstructedInterpolants, 0 QuantifiedInterpolants, 514373 SizeOfPredicates, 104 NumberOfNonLiveVariables, 1134147 ConjunctsInSsa, 433 ConjunctsInUnsatCore, 54 InterpolantComputations, 29 PerfectInterpolantSequences, 28725/45600 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