/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.prop5-back-serstep.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 20:46:34,515 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 20:46:34,576 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 20:46:34,579 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 20:46:34,580 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 20:46:34,600 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 20:46:34,600 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 20:46:34,601 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 20:46:34,601 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 20:46:34,604 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 20:46:34,604 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 20:46:34,605 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 20:46:34,605 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 20:46:34,606 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 20:46:34,606 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 20:46:34,606 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 20:46:34,606 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 20:46:34,606 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 20:46:34,606 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 20:46:34,607 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 20:46:34,607 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 20:46:34,608 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 20:46:34,608 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 20:46:34,608 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 20:46:34,608 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 20:46:34,608 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 20:46:34,609 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 20:46:34,609 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 20:46:34,609 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 20:46:34,609 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 20:46:34,610 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 20:46:34,610 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 20:46:34,610 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 20:46:34,610 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 20:46:34,610 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 20:46:34,610 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 20:46:34,610 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 20:46:34,610 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 20:46:34,611 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 20:46:34,611 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 20:46:34,611 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 20:46:34,786 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 20:46:34,802 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 20:46:34,804 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 20:46:34,804 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 20:46:34,805 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 20:46:34,805 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.5.prop5-back-serstep.c
[2023-12-25 20:46:35,799 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 20:46:36,180 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 20:46:36,181 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.5.prop5-back-serstep.c
[2023-12-25 20:46:36,222 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04235ea51/5ac1723173e14a21b3148290e1f51c4f/FLAG08ae364f6
[2023-12-25 20:46:36,233 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04235ea51/5ac1723173e14a21b3148290e1f51c4f
[2023-12-25 20:46:36,236 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 20:46:36,237 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 20:46:36,239 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 20:46:36,239 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 20:46:36,242 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 20:46:36,242 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 08:46:36" (1/1) ...
[2023-12-25 20:46:36,243 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9810c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:36, skipping insertion in model container
[2023-12-25 20:46:36,243 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 08:46:36" (1/1) ...
[2023-12-25 20:46:36,390 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 20:46:36,591 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.prop5-back-serstep.c[1180,1193]
[2023-12-25 20:46:37,593 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 20:46:37,602 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 20:46:37,610 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.prop5-back-serstep.c[1180,1193]
[2023-12-25 20:46:38,200 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 20:46:38,211 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 20:46:38,211 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38 WrapperNode
[2023-12-25 20:46:38,211 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 20:46:38,212 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 20:46:38,212 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 20:46:38,212 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 20:46:38,217 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:38,475 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:41,766 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56262
[2023-12-25 20:46:41,767 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 20:46:41,767 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 20:46:41,768 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 20:46:41,768 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 20:46:41,775 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:41,775 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:42,962 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:43,292 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 20:46:43,293 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:43,293 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:44,411 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:44,539 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:44,728 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:44,851 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:45,499 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 20:46:45,500 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 20:46:45,501 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 20:46:45,501 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 20:46:45,502 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (1/1) ...
[2023-12-25 20:46:45,519 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 20:46:45,526 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:46:45,535 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 20:46:45,553 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 20:46:45,560 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 20:46:45,560 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 20:46:45,560 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 20:46:45,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 20:46:47,758 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 20:46:47,760 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 20:47:05,449 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 20:47:05,962 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 20:47:05,962 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 20:47:05,962 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 08:47:05 BoogieIcfgContainer
[2023-12-25 20:47:05,963 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 20:47:05,965 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 20:47:05,965 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 20:47:05,967 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 20:47:05,967 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 08:46:36" (1/3) ...
[2023-12-25 20:47:05,968 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9ffe21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 08:47:05, skipping insertion in model container
[2023-12-25 20:47:05,968 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:46:38" (2/3) ...
[2023-12-25 20:47:05,968 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9ffe21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 08:47:05, skipping insertion in model container
[2023-12-25 20:47:05,968 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 08:47:05" (3/3) ...
[2023-12-25 20:47:05,969 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pgm_protocol.5.prop5-back-serstep.c
[2023-12-25 20:47:05,980 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 20:47:05,980 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 20:47:06,107 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 20:47:06,112 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;@3a0210a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 20:47:06,113 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 20:47:06,140 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 12142 states, 12140 states have (on average 1.6668863261943987) internal successors, (20236), 12141 states have internal predecessors, (20236), 0 states have call successors, (0), 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 20:47:06,188 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1267
[2023-12-25 20:47:06,189 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:47:06,191 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 20:47:06,191 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:47:06,196 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:47:06,197 INFO  L85        PathProgramCache]: Analyzing trace with hash -471527210, now seen corresponding path program 1 times
[2023-12-25 20:47:06,203 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:47:06,204 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517423193]
[2023-12-25 20:47:06,204 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:06,205 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:47:07,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:47:10,422 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 20:47:10,422 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:47:10,422 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517423193]
[2023-12-25 20:47:10,423 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517423193] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:47:10,423 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:47:10,423 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 20:47:10,424 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386923125]
[2023-12-25 20:47:10,425 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:47:10,430 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:47:10,430 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:47:10,455 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:47:10,456 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:47:10,488 INFO  L87              Difference]: Start difference. First operand  has 12142 states, 12140 states have (on average 1.6668863261943987) internal successors, (20236), 12141 states have internal predecessors, (20236), 0 states have call successors, (0), 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 20:47:10,878 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:47:10,878 INFO  L93              Difference]: Finished difference Result 23755 states and 39593 transitions.
[2023-12-25 20:47:10,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:47:10,881 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 20:47:10,885 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:47:10,934 INFO  L225             Difference]: With dead ends: 23755
[2023-12-25 20:47:10,935 INFO  L226             Difference]: Without dead ends: 12142
[2023-12-25 20:47:10,956 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 20:47:10,959 INFO  L413           NwaCegarLoop]: 20229 mSDtfsCounter, 1 mSDsluCounter, 40453 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60682 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 20:47:10,960 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60682 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:47:10,987 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12142 states.
[2023-12-25 20:47:11,157 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12142 to 12142.
[2023-12-25 20:47:11,184 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12142 states, 12141 states have (on average 1.6665843011284078) internal successors, (20234), 12141 states have internal predecessors, (20234), 0 states have call successors, (0), 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 20:47:11,209 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12142 states to 12142 states and 20234 transitions.
[2023-12-25 20:47:11,210 INFO  L78                 Accepts]: Start accepts. Automaton has 12142 states and 20234 transitions. Word has length 1266
[2023-12-25 20:47:11,213 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:47:11,213 INFO  L495      AbstractCegarLoop]: Abstraction has 12142 states and 20234 transitions.
[2023-12-25 20:47:11,214 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 20:47:11,214 INFO  L276                IsEmpty]: Start isEmpty. Operand 12142 states and 20234 transitions.
[2023-12-25 20:47:11,245 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1268
[2023-12-25 20:47:11,246 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:47:11,246 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 20:47:11,246 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 20:47:11,247 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:47:11,247 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:47:11,247 INFO  L85        PathProgramCache]: Analyzing trace with hash -1730709102, now seen corresponding path program 1 times
[2023-12-25 20:47:11,248 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:47:11,248 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339711491]
[2023-12-25 20:47:11,248 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:11,249 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:47:11,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:47:13,223 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 20:47:13,223 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:47:13,224 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339711491]
[2023-12-25 20:47:13,224 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339711491] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:47:13,224 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:47:13,224 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 20:47:13,224 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918308755]
[2023-12-25 20:47:13,224 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:47:13,227 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:47:13,230 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:47:13,231 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:47:13,231 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:47:13,231 INFO  L87              Difference]: Start difference. First operand 12142 states and 20234 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 20:47:13,569 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:47:13,569 INFO  L93              Difference]: Finished difference Result 23758 states and 39591 transitions.
[2023-12-25 20:47:13,569 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:47:13,570 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 20:47:13,571 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:47:13,599 INFO  L225             Difference]: With dead ends: 23758
[2023-12-25 20:47:13,600 INFO  L226             Difference]: Without dead ends: 12145
[2023-12-25 20:47:13,610 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 20:47:13,611 INFO  L413           NwaCegarLoop]: 20229 mSDtfsCounter, 1 mSDsluCounter, 40451 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60680 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 20:47:13,611 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60680 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:47:13,626 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12145 states.
[2023-12-25 20:47:13,749 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12145 to 12144.
[2023-12-25 20:47:13,765 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12144 states, 12143 states have (on average 1.6664745120645639) internal successors, (20236), 12143 states have internal predecessors, (20236), 0 states have call successors, (0), 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 20:47:13,788 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12144 states to 12144 states and 20236 transitions.
[2023-12-25 20:47:13,788 INFO  L78                 Accepts]: Start accepts. Automaton has 12144 states and 20236 transitions. Word has length 1267
[2023-12-25 20:47:13,790 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:47:13,790 INFO  L495      AbstractCegarLoop]: Abstraction has 12144 states and 20236 transitions.
[2023-12-25 20:47:13,790 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 20:47:13,790 INFO  L276                IsEmpty]: Start isEmpty. Operand 12144 states and 20236 transitions.
[2023-12-25 20:47:13,801 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1269
[2023-12-25 20:47:13,801 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:47:13,801 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 20:47:13,802 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 20:47:13,802 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:47:13,808 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:47:13,809 INFO  L85        PathProgramCache]: Analyzing trace with hash -547792142, now seen corresponding path program 1 times
[2023-12-25 20:47:13,809 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:47:13,809 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627000006]
[2023-12-25 20:47:13,810 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:13,810 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:47:14,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:47:15,748 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 20:47:15,748 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:47:15,749 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627000006]
[2023-12-25 20:47:15,749 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627000006] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:47:15,749 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:47:15,749 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 20:47:15,749 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212496404]
[2023-12-25 20:47:15,750 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:47:15,751 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:47:15,751 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:47:15,752 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:47:15,753 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:47:15,754 INFO  L87              Difference]: Start difference. First operand 12144 states and 20236 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 20:47:16,212 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:47:16,212 INFO  L93              Difference]: Finished difference Result 35368 states and 58937 transitions.
[2023-12-25 20:47:16,212 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 20:47:16,213 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 20:47:16,214 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:47:16,253 INFO  L225             Difference]: With dead ends: 35368
[2023-12-25 20:47:16,253 INFO  L226             Difference]: Without dead ends: 23753
[2023-12-25 20:47:16,272 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 20:47:16,274 INFO  L413           NwaCegarLoop]: 22494 mSDtfsCounter, 19342 mSDsluCounter, 42714 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19342 SdHoareTripleChecker+Valid, 65208 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 20:47:16,275 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19342 Valid, 65208 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:47:16,296 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23753 states.
[2023-12-25 20:47:16,464 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23753 to 12146.
[2023-12-25 20:47:16,480 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12146 states, 12145 states have (on average 1.6663647591601483) internal successors, (20238), 12145 states have internal predecessors, (20238), 0 states have call successors, (0), 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 20:47:16,511 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12146 states to 12146 states and 20238 transitions.
[2023-12-25 20:47:16,511 INFO  L78                 Accepts]: Start accepts. Automaton has 12146 states and 20238 transitions. Word has length 1268
[2023-12-25 20:47:16,512 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:47:16,513 INFO  L495      AbstractCegarLoop]: Abstraction has 12146 states and 20238 transitions.
[2023-12-25 20:47:16,513 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 20:47:16,514 INFO  L276                IsEmpty]: Start isEmpty. Operand 12146 states and 20238 transitions.
[2023-12-25 20:47:16,526 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1270
[2023-12-25 20:47:16,527 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:47:16,532 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 20:47:16,533 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 20:47:16,533 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:47:16,533 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:47:16,533 INFO  L85        PathProgramCache]: Analyzing trace with hash 87613818, now seen corresponding path program 1 times
[2023-12-25 20:47:16,533 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:47:16,533 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879544511]
[2023-12-25 20:47:16,534 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:16,534 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:47:16,908 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:47:18,525 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 20:47:18,525 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:47:18,525 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879544511]
[2023-12-25 20:47:18,525 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879544511] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:47:18,525 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:47:18,525 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 20:47:18,525 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320555964]
[2023-12-25 20:47:18,525 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:47:18,526 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:47:18,526 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:47:18,527 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:47:18,528 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:47:18,528 INFO  L87              Difference]: Start difference. First operand 12146 states and 20238 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 20:47:19,080 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:47:19,081 INFO  L93              Difference]: Finished difference Result 36733 states and 61208 transitions.
[2023-12-25 20:47:19,081 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:47:19,082 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 20:47:19,084 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:47:19,123 INFO  L225             Difference]: With dead ends: 36733
[2023-12-25 20:47:19,123 INFO  L226             Difference]: Without dead ends: 25116
[2023-12-25 20:47:19,142 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 20:47:19,147 INFO  L413           NwaCegarLoop]: 22493 mSDtfsCounter, 79266 mSDsluCounter, 40452 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79266 SdHoareTripleChecker+Valid, 62945 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 20:47:19,147 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [79266 Valid, 62945 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:47:19,172 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25116 states.
[2023-12-25 20:47:19,371 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25116 to 13505.
[2023-12-25 20:47:19,385 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13505 states, 13504 states have (on average 1.6663951421800949) internal successors, (22503), 13504 states have internal predecessors, (22503), 0 states have call successors, (0), 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 20:47:19,404 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13505 states to 13505 states and 22503 transitions.
[2023-12-25 20:47:19,404 INFO  L78                 Accepts]: Start accepts. Automaton has 13505 states and 22503 transitions. Word has length 1269
[2023-12-25 20:47:19,405 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:47:19,405 INFO  L495      AbstractCegarLoop]: Abstraction has 13505 states and 22503 transitions.
[2023-12-25 20:47:19,406 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 20:47:19,406 INFO  L276                IsEmpty]: Start isEmpty. Operand 13505 states and 22503 transitions.
[2023-12-25 20:47:19,853 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8997
[2023-12-25 20:47:19,853 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:47:19,856 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]
[2023-12-25 20:47:19,857 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-25 20:47:19,857 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:47:19,857 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:47:19,859 INFO  L85        PathProgramCache]: Analyzing trace with hash -310442186, now seen corresponding path program 1 times
[2023-12-25 20:47:19,859 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:47:19,859 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589095451]
[2023-12-25 20:47:19,859 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:19,860 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:47:20,859 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:47:20,859 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997423666]
[2023-12-25 20:47:20,861 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:20,861 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:47:20,861 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:47:20,863 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 20:47:20,869 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 20:47:32,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:47:32,320 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45310 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:47:32,536 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:47:33,749 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 20:47:33,750 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:47:33,939 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 20:47:33,939 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:47:33,939 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589095451]
[2023-12-25 20:47:33,939 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:47:33,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997423666]
[2023-12-25 20:47:33,940 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [997423666] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:47:33,940 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:47:33,941 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:47:33,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984183270]
[2023-12-25 20:47:33,941 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:47:33,948 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:47:33,948 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:47:33,953 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:47:33,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:47:33,955 INFO  L87              Difference]: Start difference. First operand 13505 states and 22503 transitions. Second operand  has 5 states, 5 states have (on average 1618.6) internal successors, (8093), 5 states have internal predecessors, (8093), 0 states have call successors, (0), 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 20:47:48,486 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:47:48,487 INFO  L93              Difference]: Finished difference Result 47130 states and 78129 transitions.
[2023-12-25 20:47:48,487 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:47:48,489 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1618.6) internal successors, (8093), 5 states have internal predecessors, (8093), 0 states have call successors, (0), 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 8996
[2023-12-25 20:47:48,499 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:47:48,538 INFO  L225             Difference]: With dead ends: 47130
[2023-12-25 20:47:48,538 INFO  L226             Difference]: Without dead ends: 25115
[2023-12-25 20:47:48,553 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 17991 GetRequests, 17982 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 20:47:48,553 INFO  L413           NwaCegarLoop]: 32107 mSDtfsCounter, 35034 mSDsluCounter, 48634 mSDsCounter, 0 mSdLazyCounter, 22665 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35034 SdHoareTripleChecker+Valid, 80741 SdHoareTripleChecker+Invalid, 23880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 22665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time
[2023-12-25 20:47:48,554 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35034 Valid, 80741 Invalid, 23880 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 22665 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time]
[2023-12-25 20:47:48,572 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25115 states.
[2023-12-25 20:47:48,797 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25115 to 13507.
[2023-12-25 20:47:48,816 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13507 states, 13506 states have (on average 1.6662964608322228) internal successors, (22505), 13506 states have internal predecessors, (22505), 0 states have call successors, (0), 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 20:47:48,833 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13507 states to 13507 states and 22505 transitions.
[2023-12-25 20:47:48,833 INFO  L78                 Accepts]: Start accepts. Automaton has 13507 states and 22505 transitions. Word has length 8996
[2023-12-25 20:47:48,841 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:47:48,841 INFO  L495      AbstractCegarLoop]: Abstraction has 13507 states and 22505 transitions.
[2023-12-25 20:47:48,842 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1618.6) internal successors, (8093), 5 states have internal predecessors, (8093), 0 states have call successors, (0), 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 20:47:48,842 INFO  L276                IsEmpty]: Start isEmpty. Operand 13507 states and 22505 transitions.
[2023-12-25 20:47:49,329 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8998
[2023-12-25 20:47:49,330 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:47:49,333 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 20:47:49,475 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 20:47:49,534 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 20:47:49,534 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:47:49,535 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:47:49,537 INFO  L85        PathProgramCache]: Analyzing trace with hash -1232568752, now seen corresponding path program 1 times
[2023-12-25 20:47:49,537 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:47:49,537 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097685651]
[2023-12-25 20:47:49,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:49,538 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:47:50,417 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:47:50,418 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170749830]
[2023-12-25 20:47:50,419 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:47:50,419 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:47:50,419 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:47:50,420 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 20:47:50,422 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 20:48:00,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:01,226 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45313 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:48:01,359 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:48:02,362 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 20:48:02,363 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:48:02,568 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 20:48:02,569 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:02,571 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097685651]
[2023-12-25 20:48:02,572 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:48:02,572 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170749830]
[2023-12-25 20:48:02,573 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170749830] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:48:02,573 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:48:02,574 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:48:02,574 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286359598]
[2023-12-25 20:48:02,574 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:02,580 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:48:02,581 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:02,586 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:48:02,586 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:48:02,587 INFO  L87              Difference]: Start difference. First operand 13507 states and 22505 transitions. Second operand  has 5 states, 5 states have (on average 1619.2) internal successors, (8096), 5 states have internal predecessors, (8096), 0 states have call successors, (0), 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 20:48:15,000 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:15,001 INFO  L93              Difference]: Finished difference Result 47138 states and 78137 transitions.
[2023-12-25 20:48:15,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:48:15,003 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1619.2) internal successors, (8096), 5 states have internal predecessors, (8096), 0 states have call successors, (0), 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 8997
[2023-12-25 20:48:15,013 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:15,044 INFO  L225             Difference]: With dead ends: 47138
[2023-12-25 20:48:15,044 INFO  L226             Difference]: Without dead ends: 25116
[2023-12-25 20:48:15,057 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 17993 GetRequests, 17984 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 20:48:15,058 INFO  L413           NwaCegarLoop]: 32099 mSDtfsCounter, 50722 mSDsluCounter, 31877 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50722 SdHoareTripleChecker+Valid, 63976 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time
[2023-12-25 20:48:15,058 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50722 Valid, 63976 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time]
[2023-12-25 20:48:15,079 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25116 states.
[2023-12-25 20:48:15,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25116 to 13509.
[2023-12-25 20:48:15,243 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13509 states, 13508 states have (on average 1.6661978087059521) internal successors, (22507), 13508 states have internal predecessors, (22507), 0 states have call successors, (0), 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 20:48:15,261 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13509 states to 13509 states and 22507 transitions.
[2023-12-25 20:48:15,261 INFO  L78                 Accepts]: Start accepts. Automaton has 13509 states and 22507 transitions. Word has length 8997
[2023-12-25 20:48:15,266 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:15,266 INFO  L495      AbstractCegarLoop]: Abstraction has 13509 states and 22507 transitions.
[2023-12-25 20:48:15,267 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1619.2) internal successors, (8096), 5 states have internal predecessors, (8096), 0 states have call successors, (0), 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 20:48:15,267 INFO  L276                IsEmpty]: Start isEmpty. Operand 13509 states and 22507 transitions.
[2023-12-25 20:48:15,720 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8999
[2023-12-25 20:48:15,721 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:15,724 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 20:48:15,854 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 20:48:15,924 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 20:48:15,925 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:15,926 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:15,928 INFO  L85        PathProgramCache]: Analyzing trace with hash -14931044, now seen corresponding path program 1 times
[2023-12-25 20:48:15,928 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:15,928 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915015264]
[2023-12-25 20:48:15,929 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:15,929 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:16,688 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:48:16,689 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [747986857]
[2023-12-25 20:48:16,691 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:16,691 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:48:16,691 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:48:16,706 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 20:48:16,707 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 20:48:27,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:27,680 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45316 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:48:27,808 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:48:28,754 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 20:48:28,754 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:48:28,878 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 20:48:28,878 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:28,878 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915015264]
[2023-12-25 20:48:28,878 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:48:28,878 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747986857]
[2023-12-25 20:48:28,878 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [747986857] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:48:28,878 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:48:28,880 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:48:28,880 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075664972]
[2023-12-25 20:48:28,880 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:28,887 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:48:28,887 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:28,895 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:48:28,895 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:48:28,897 INFO  L87              Difference]: Start difference. First operand 13509 states and 22507 transitions. Second operand  has 5 states, 5 states have (on average 1619.8) internal successors, (8099), 5 states have internal predecessors, (8099), 0 states have call successors, (0), 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 20:48:41,332 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:41,332 INFO  L93              Difference]: Finished difference Result 47146 states and 78145 transitions.
[2023-12-25 20:48:41,332 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:48:41,334 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1619.8) internal successors, (8099), 5 states have internal predecessors, (8099), 0 states have call successors, (0), 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 20:48:41,341 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:41,376 INFO  L225             Difference]: With dead ends: 47146
[2023-12-25 20:48:41,376 INFO  L226             Difference]: Without dead ends: 25117
[2023-12-25 20:48:41,386 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 17995 GetRequests, 17986 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 20:48:41,386 INFO  L413           NwaCegarLoop]: 32091 mSDtfsCounter, 50714 mSDsluCounter, 31872 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50714 SdHoareTripleChecker+Valid, 63963 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time
[2023-12-25 20:48:41,387 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50714 Valid, 63963 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time]
[2023-12-25 20:48:41,405 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25117 states.
[2023-12-25 20:48:41,547 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25117 to 13511.
[2023-12-25 20:48:41,560 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13511 states, 13510 states have (on average 1.666099185788305) internal successors, (22509), 13510 states have internal predecessors, (22509), 0 states have call successors, (0), 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 20:48:41,578 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13511 states to 13511 states and 22509 transitions.
[2023-12-25 20:48:41,579 INFO  L78                 Accepts]: Start accepts. Automaton has 13511 states and 22509 transitions. Word has length 8998
[2023-12-25 20:48:41,584 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:41,584 INFO  L495      AbstractCegarLoop]: Abstraction has 13511 states and 22509 transitions.
[2023-12-25 20:48:41,585 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1619.8) internal successors, (8099), 5 states have internal predecessors, (8099), 0 states have call successors, (0), 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 20:48:41,585 INFO  L276                IsEmpty]: Start isEmpty. Operand 13511 states and 22509 transitions.
[2023-12-25 20:48:42,037 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9000
[2023-12-25 20:48:42,038 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:42,041 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]
[2023-12-25 20:48:42,174 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 20:48:42,241 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 20:48:42,242 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:42,243 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:42,245 INFO  L85        PathProgramCache]: Analyzing trace with hash -1832759188, now seen corresponding path program 1 times
[2023-12-25 20:48:42,245 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:42,245 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258095400]
[2023-12-25 20:48:42,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:42,246 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:42,930 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:48:42,930 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146790392]
[2023-12-25 20:48:42,932 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:42,932 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:48:42,932 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:48:42,933 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 20:48:42,935 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 20:48:53,533 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:53,837 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45320 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:48:53,992 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:48:54,975 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 20:48:54,975 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:48:55,097 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 20:48:55,097 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:55,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258095400]
[2023-12-25 20:48:55,097 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:48:55,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146790392]
[2023-12-25 20:48:55,098 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146790392] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:48:55,098 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:48:55,099 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:48:55,099 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479378850]
[2023-12-25 20:48:55,099 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:55,105 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:48:55,105 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:55,110 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:48:55,110 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:48:55,111 INFO  L87              Difference]: Start difference. First operand 13511 states and 22509 transitions. Second operand  has 5 states, 5 states have (on average 1620.4) internal successors, (8102), 5 states have internal predecessors, (8102), 0 states have call successors, (0), 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 20:49:08,835 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:49:08,835 INFO  L93              Difference]: Finished difference Result 47154 states and 78153 transitions.
[2023-12-25 20:49:08,836 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:49:08,838 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1620.4) internal successors, (8102), 5 states have internal predecessors, (8102), 0 states have call successors, (0), 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 20:49:08,843 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:49:08,865 INFO  L225             Difference]: With dead ends: 47154
[2023-12-25 20:49:08,866 INFO  L226             Difference]: Without dead ends: 25118
[2023-12-25 20:49:08,878 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 20:49:08,880 INFO  L413           NwaCegarLoop]: 32083 mSDtfsCounter, 35021 mSDsluCounter, 46334 mSDsCounter, 0 mSdLazyCounter, 21789 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35021 SdHoareTripleChecker+Valid, 78417 SdHoareTripleChecker+Invalid, 23004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 21789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time
[2023-12-25 20:49:08,880 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35021 Valid, 78417 Invalid, 23004 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 21789 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time]
[2023-12-25 20:49:08,896 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25118 states.
[2023-12-25 20:49:09,031 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25118 to 13513.
[2023-12-25 20:49:09,046 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13513 states, 13512 states have (on average 1.6660005920663115) internal successors, (22511), 13512 states have internal predecessors, (22511), 0 states have call successors, (0), 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 20:49:09,061 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13513 states to 13513 states and 22511 transitions.
[2023-12-25 20:49:09,061 INFO  L78                 Accepts]: Start accepts. Automaton has 13513 states and 22511 transitions. Word has length 8999
[2023-12-25 20:49:09,066 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:49:09,066 INFO  L495      AbstractCegarLoop]: Abstraction has 13513 states and 22511 transitions.
[2023-12-25 20:49:09,067 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1620.4) internal successors, (8102), 5 states have internal predecessors, (8102), 0 states have call successors, (0), 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 20:49:09,067 INFO  L276                IsEmpty]: Start isEmpty. Operand 13513 states and 22511 transitions.
[2023-12-25 20:49:09,505 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9001
[2023-12-25 20:49:09,505 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:49:09,508 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 20:49:09,634 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 20:49:09,724 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 20:49:09,724 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:49:09,725 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:49:09,727 INFO  L85        PathProgramCache]: Analyzing trace with hash 1505977732, now seen corresponding path program 1 times
[2023-12-25 20:49:09,727 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:49:09,727 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505170231]
[2023-12-25 20:49:09,728 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:09,728 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:49:10,406 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:49:10,406 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291459083]
[2023-12-25 20:49:10,407 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:10,408 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:10,408 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:49:10,409 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 20:49:10,410 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 20:49:20,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:49:20,882 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45323 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:49:21,014 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:49:22,006 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 20:49:22,006 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:49:22,119 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 20:49:22,120 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:49:22,120 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505170231]
[2023-12-25 20:49:22,120 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:49:22,120 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291459083]
[2023-12-25 20:49:22,120 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [291459083] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:49:22,120 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:49:22,121 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:49:22,121 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871395478]
[2023-12-25 20:49:22,122 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:49:22,127 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:49:22,127 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:49:22,131 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:49:22,131 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:49:22,133 INFO  L87              Difference]: Start difference. First operand 13513 states and 22511 transitions. Second operand  has 5 states, 5 states have (on average 1621.0) internal successors, (8105), 5 states have internal predecessors, (8105), 0 states have call successors, (0), 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 20:49:35,879 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:49:35,879 INFO  L93              Difference]: Finished difference Result 47162 states and 78161 transitions.
[2023-12-25 20:49:35,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:49:35,881 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1621.0) internal successors, (8105), 5 states have internal predecessors, (8105), 0 states have call successors, (0), 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 20:49:35,891 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:49:35,908 INFO  L225             Difference]: With dead ends: 47162
[2023-12-25 20:49:35,908 INFO  L226             Difference]: Without dead ends: 25119
[2023-12-25 20:49:35,920 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 20:49:35,922 INFO  L413           NwaCegarLoop]: 32075 mSDtfsCounter, 35016 mSDsluCounter, 46326 mSDsCounter, 0 mSdLazyCounter, 21789 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35016 SdHoareTripleChecker+Valid, 78401 SdHoareTripleChecker+Invalid, 23004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 21789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time
[2023-12-25 20:49:35,922 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35016 Valid, 78401 Invalid, 23004 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 21789 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time]
[2023-12-25 20:49:35,945 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25119 states.
[2023-12-25 20:49:36,101 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25119 to 13515.
[2023-12-25 20:49:36,116 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13515 states, 13514 states have (on average 1.665902027527009) internal successors, (22513), 13514 states have internal predecessors, (22513), 0 states have call successors, (0), 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 20:49:36,136 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13515 states to 13515 states and 22513 transitions.
[2023-12-25 20:49:36,136 INFO  L78                 Accepts]: Start accepts. Automaton has 13515 states and 22513 transitions. Word has length 9000
[2023-12-25 20:49:36,142 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:49:36,143 INFO  L495      AbstractCegarLoop]: Abstraction has 13515 states and 22513 transitions.
[2023-12-25 20:49:36,144 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1621.0) internal successors, (8105), 5 states have internal predecessors, (8105), 0 states have call successors, (0), 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 20:49:36,144 INFO  L276                IsEmpty]: Start isEmpty. Operand 13515 states and 22513 transitions.
[2023-12-25 20:49:36,636 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9002
[2023-12-25 20:49:36,636 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:49:36,639 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 20:49:36,757 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-12-25 20:49:36,852 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 20:49:36,852 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:49:36,853 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:49:36,855 INFO  L85        PathProgramCache]: Analyzing trace with hash 114728198, now seen corresponding path program 1 times
[2023-12-25 20:49:36,855 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:49:36,855 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147692485]
[2023-12-25 20:49:36,855 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:36,856 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:49:37,563 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:49:37,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643855598]
[2023-12-25 20:49:37,565 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:37,565 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:37,565 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:49:37,566 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 20:49:37,568 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 20:49:48,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:49:48,905 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45326 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:49:49,024 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:49:50,039 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 20:49:50,039 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:49:50,212 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 20:49:50,212 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:49:50,212 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147692485]
[2023-12-25 20:49:50,212 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:49:50,212 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643855598]
[2023-12-25 20:49:50,212 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [643855598] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:49:50,212 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:49:50,213 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:49:50,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386534241]
[2023-12-25 20:49:50,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:49:50,219 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:49:50,219 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:49:50,223 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:49:50,223 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:49:50,224 INFO  L87              Difference]: Start difference. First operand 13515 states and 22513 transitions. Second operand  has 5 states, 5 states have (on average 1621.6) internal successors, (8108), 5 states have internal predecessors, (8108), 0 states have call successors, (0), 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 20:50:04,709 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:50:04,709 INFO  L93              Difference]: Finished difference Result 47170 states and 78169 transitions.
[2023-12-25 20:50:04,710 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:50:04,712 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1621.6) internal successors, (8108), 5 states have internal predecessors, (8108), 0 states have call successors, (0), 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 20:50:04,719 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:50:04,738 INFO  L225             Difference]: With dead ends: 47170
[2023-12-25 20:50:04,739 INFO  L226             Difference]: Without dead ends: 25120
[2023-12-25 20:50:04,749 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 20:50:04,750 INFO  L413           NwaCegarLoop]: 32067 mSDtfsCounter, 35004 mSDsluCounter, 48584 mSDsCounter, 0 mSdLazyCounter, 22665 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35004 SdHoareTripleChecker+Valid, 80651 SdHoareTripleChecker+Invalid, 23880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 22665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time
[2023-12-25 20:50:04,750 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35004 Valid, 80651 Invalid, 23880 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 22665 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time]
[2023-12-25 20:50:04,770 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25120 states.
[2023-12-25 20:50:04,904 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25120 to 13517.
[2023-12-25 20:50:04,919 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13517 states, 13516 states have (on average 1.665803492157443) internal successors, (22515), 13516 states have internal predecessors, (22515), 0 states have call successors, (0), 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 20:50:04,934 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13517 states to 13517 states and 22515 transitions.
[2023-12-25 20:50:04,934 INFO  L78                 Accepts]: Start accepts. Automaton has 13517 states and 22515 transitions. Word has length 9001
[2023-12-25 20:50:04,938 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:50:04,938 INFO  L495      AbstractCegarLoop]: Abstraction has 13517 states and 22515 transitions.
[2023-12-25 20:50:04,939 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1621.6) internal successors, (8108), 5 states have internal predecessors, (8108), 0 states have call successors, (0), 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 20:50:04,939 INFO  L276                IsEmpty]: Start isEmpty. Operand 13517 states and 22515 transitions.
[2023-12-25 20:50:05,400 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9003
[2023-12-25 20:50:05,400 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:50:05,403 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 20:50:05,524 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-12-25 20:50:05,604 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 20:50:05,604 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:50:05,605 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:50:05,606 INFO  L85        PathProgramCache]: Analyzing trace with hash 1672613354, now seen corresponding path program 1 times
[2023-12-25 20:50:05,606 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:50:05,606 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421151425]
[2023-12-25 20:50:05,607 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:05,607 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:50:06,317 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:50:06,318 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061004591]
[2023-12-25 20:50:06,319 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:06,319 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:50:06,319 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:50:06,320 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 20:50:06,322 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 20:50:16,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:50:17,259 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45329 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:50:17,359 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:50:18,340 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 20:50:18,340 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:50:18,469 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 20:50:18,469 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:50:18,469 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421151425]
[2023-12-25 20:50:18,469 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:50:18,469 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061004591]
[2023-12-25 20:50:18,469 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061004591] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:50:18,469 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:50:18,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:50:18,471 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731244804]
[2023-12-25 20:50:18,471 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:50:18,477 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:50:18,477 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:50:18,482 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:50:18,482 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:50:18,483 INFO  L87              Difference]: Start difference. First operand 13517 states and 22515 transitions. Second operand  has 5 states, 5 states have (on average 1622.2) internal successors, (8111), 5 states have internal predecessors, (8111), 0 states have call successors, (0), 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 20:50:32,854 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:50:32,854 INFO  L93              Difference]: Finished difference Result 47178 states and 78177 transitions.
[2023-12-25 20:50:32,855 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:50:32,856 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1622.2) internal successors, (8111), 5 states have internal predecessors, (8111), 0 states have call successors, (0), 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 20:50:32,861 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:50:32,879 INFO  L225             Difference]: With dead ends: 47178
[2023-12-25 20:50:32,879 INFO  L226             Difference]: Without dead ends: 25121
[2023-12-25 20:50:32,887 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 20:50:32,888 INFO  L413           NwaCegarLoop]: 32059 mSDtfsCounter, 34998 mSDsluCounter, 48574 mSDsCounter, 0 mSdLazyCounter, 22665 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34998 SdHoareTripleChecker+Valid, 80633 SdHoareTripleChecker+Invalid, 23880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 22665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time
[2023-12-25 20:50:32,888 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34998 Valid, 80633 Invalid, 23880 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 22665 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time]
[2023-12-25 20:50:32,904 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25121 states.
[2023-12-25 20:50:33,027 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25121 to 13519.
[2023-12-25 20:50:33,040 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13519 states, 13518 states have (on average 1.6657049859446664) internal successors, (22517), 13518 states have internal predecessors, (22517), 0 states have call successors, (0), 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 20:50:33,055 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13519 states to 13519 states and 22517 transitions.
[2023-12-25 20:50:33,056 INFO  L78                 Accepts]: Start accepts. Automaton has 13519 states and 22517 transitions. Word has length 9002
[2023-12-25 20:50:33,060 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:50:33,060 INFO  L495      AbstractCegarLoop]: Abstraction has 13519 states and 22517 transitions.
[2023-12-25 20:50:33,061 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1622.2) internal successors, (8111), 5 states have internal predecessors, (8111), 0 states have call successors, (0), 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 20:50:33,061 INFO  L276                IsEmpty]: Start isEmpty. Operand 13519 states and 22517 transitions.
[2023-12-25 20:50:33,478 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9004
[2023-12-25 20:50:33,478 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:50:33,480 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 20:50:33,599 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 20:50:33,681 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 20:50:33,682 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:50:33,682 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:50:33,683 INFO  L85        PathProgramCache]: Analyzing trace with hash -1226516446, now seen corresponding path program 1 times
[2023-12-25 20:50:33,683 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:50:33,683 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352478036]
[2023-12-25 20:50:33,684 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:33,684 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:50:34,523 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:50:34,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420114571]
[2023-12-25 20:50:34,525 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:34,525 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:50:34,525 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:50:34,526 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 20:50:34,528 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 20:50:44,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:50:45,114 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45333 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:50:45,208 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:50:46,228 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 20:50:46,228 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:50:46,351 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 20:50:46,351 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:50:46,351 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352478036]
[2023-12-25 20:50:46,352 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:50:46,352 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420114571]
[2023-12-25 20:50:46,352 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [420114571] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:50:46,352 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:50:46,353 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:50:46,353 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095603753]
[2023-12-25 20:50:46,353 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:50:46,358 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:50:46,358 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:50:46,364 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:50:46,364 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:50:46,365 INFO  L87              Difference]: Start difference. First operand 13519 states and 22517 transitions. Second operand  has 5 states, 5 states have (on average 1622.8) internal successors, (8114), 5 states have internal predecessors, (8114), 0 states have call successors, (0), 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 20:51:00,458 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:51:00,458 INFO  L93              Difference]: Finished difference Result 47186 states and 78185 transitions.
[2023-12-25 20:51:00,459 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:51:00,460 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1622.8) internal successors, (8114), 5 states have internal predecessors, (8114), 0 states have call successors, (0), 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 20:51:00,466 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:51:00,579 INFO  L225             Difference]: With dead ends: 47186
[2023-12-25 20:51:00,579 INFO  L226             Difference]: Without dead ends: 25122
[2023-12-25 20:51:00,587 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 20:51:00,588 INFO  L413           NwaCegarLoop]: 32051 mSDtfsCounter, 35001 mSDsluCounter, 46302 mSDsCounter, 0 mSdLazyCounter, 21789 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35001 SdHoareTripleChecker+Valid, 78353 SdHoareTripleChecker+Invalid, 23004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 21789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time
[2023-12-25 20:51:00,588 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35001 Valid, 78353 Invalid, 23004 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 21789 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time]
[2023-12-25 20:51:00,599 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25122 states.
[2023-12-25 20:51:00,717 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25122 to 13521.
[2023-12-25 20:51:00,729 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13521 states, 13520 states have (on average 1.6656065088757397) internal successors, (22519), 13520 states have internal predecessors, (22519), 0 states have call successors, (0), 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 20:51:00,744 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 22519 transitions.
[2023-12-25 20:51:00,745 INFO  L78                 Accepts]: Start accepts. Automaton has 13521 states and 22519 transitions. Word has length 9003
[2023-12-25 20:51:00,749 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:51:00,749 INFO  L495      AbstractCegarLoop]: Abstraction has 13521 states and 22519 transitions.
[2023-12-25 20:51:00,750 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1622.8) internal successors, (8114), 5 states have internal predecessors, (8114), 0 states have call successors, (0), 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 20:51:00,750 INFO  L276                IsEmpty]: Start isEmpty. Operand 13521 states and 22519 transitions.
[2023-12-25 20:51:01,185 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9005
[2023-12-25 20:51:01,186 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:51:01,188 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 20:51:01,316 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 20:51:01,388 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 20:51:01,389 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:51:01,389 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:51:01,390 INFO  L85        PathProgramCache]: Analyzing trace with hash 1958041810, now seen corresponding path program 1 times
[2023-12-25 20:51:01,390 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:51:01,390 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068377836]
[2023-12-25 20:51:01,391 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:01,391 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:51:02,121 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:51:02,122 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1361431490]
[2023-12-25 20:51:02,124 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:02,124 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:51:02,124 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:51:02,125 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 20:51:02,125 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 20:51:12,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:51:12,926 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45336 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:51:13,028 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:51:14,200 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 20:51:14,201 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:51:14,328 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 20:51:14,329 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:51:14,329 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068377836]
[2023-12-25 20:51:14,329 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:51:14,329 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361431490]
[2023-12-25 20:51:14,329 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361431490] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:51:14,329 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:51:14,330 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:51:14,330 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647922176]
[2023-12-25 20:51:14,330 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:51:14,335 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:51:14,335 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:51:14,339 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:51:14,339 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:51:14,340 INFO  L87              Difference]: Start difference. First operand 13521 states and 22519 transitions. Second operand  has 5 states, 5 states have (on average 1623.4) internal successors, (8117), 5 states have internal predecessors, (8117), 0 states have call successors, (0), 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 20:51:28,538 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:51:28,539 INFO  L93              Difference]: Finished difference Result 47194 states and 78193 transitions.
[2023-12-25 20:51:28,539 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:51:28,541 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1623.4) internal successors, (8117), 5 states have internal predecessors, (8117), 0 states have call successors, (0), 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 20:51:28,546 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:51:28,563 INFO  L225             Difference]: With dead ends: 47194
[2023-12-25 20:51:28,564 INFO  L226             Difference]: Without dead ends: 25123
[2023-12-25 20:51:28,571 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 20:51:28,571 INFO  L413           NwaCegarLoop]: 32043 mSDtfsCounter, 34986 mSDsluCounter, 48554 mSDsCounter, 0 mSdLazyCounter, 22665 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34986 SdHoareTripleChecker+Valid, 80597 SdHoareTripleChecker+Invalid, 23880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 22665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time
[2023-12-25 20:51:28,572 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34986 Valid, 80597 Invalid, 23880 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 22665 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time]
[2023-12-25 20:51:28,589 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25123 states.
[2023-12-25 20:51:28,703 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25123 to 13523.
[2023-12-25 20:51:28,714 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13523 states, 13522 states have (on average 1.665508060937731) internal successors, (22521), 13522 states have internal predecessors, (22521), 0 states have call successors, (0), 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 20:51:28,728 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13523 states to 13523 states and 22521 transitions.
[2023-12-25 20:51:28,728 INFO  L78                 Accepts]: Start accepts. Automaton has 13523 states and 22521 transitions. Word has length 9004
[2023-12-25 20:51:28,732 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:51:28,732 INFO  L495      AbstractCegarLoop]: Abstraction has 13523 states and 22521 transitions.
[2023-12-25 20:51:28,733 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1623.4) internal successors, (8117), 5 states have internal predecessors, (8117), 0 states have call successors, (0), 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 20:51:28,733 INFO  L276                IsEmpty]: Start isEmpty. Operand 13523 states and 22521 transitions.
[2023-12-25 20:51:29,187 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9006
[2023-12-25 20:51:29,187 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:51:29,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 20:51:29,336 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 20:51:29,390 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 20:51:29,390 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:51:29,390 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:51:29,391 INFO  L85        PathProgramCache]: Analyzing trace with hash -1652358980, now seen corresponding path program 1 times
[2023-12-25 20:51:29,392 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:51:29,392 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017266398]
[2023-12-25 20:51:29,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:29,392 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:51:30,100 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:51:30,100 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191536485]
[2023-12-25 20:51:30,101 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:30,102 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:51:30,102 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:51:30,103 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 20:51:30,105 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 20:51:40,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:51:40,718 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45339 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:51:40,811 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:51:41,889 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 20:51:41,889 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:51:42,011 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 20:51:42,011 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:51:42,011 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017266398]
[2023-12-25 20:51:42,011 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:51:42,011 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191536485]
[2023-12-25 20:51:42,011 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191536485] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:51:42,012 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:51:42,013 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:51:42,014 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376061834]
[2023-12-25 20:51:42,014 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:51:42,018 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:51:42,018 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:51:42,021 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:51:42,021 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:51:42,022 INFO  L87              Difference]: Start difference. First operand 13523 states and 22521 transitions. Second operand  has 5 states, 5 states have (on average 1624.0) internal successors, (8120), 5 states have internal predecessors, (8120), 0 states have call successors, (0), 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 20:51:54,294 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:51:54,294 INFO  L93              Difference]: Finished difference Result 47202 states and 78201 transitions.
[2023-12-25 20:51:54,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:51:54,296 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1624.0) internal successors, (8120), 5 states have internal predecessors, (8120), 0 states have call successors, (0), 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 20:51:54,301 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:51:54,325 INFO  L225             Difference]: With dead ends: 47202
[2023-12-25 20:51:54,325 INFO  L226             Difference]: Without dead ends: 25124
[2023-12-25 20:51:54,340 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 20:51:54,341 INFO  L413           NwaCegarLoop]: 32035 mSDtfsCounter, 50658 mSDsluCounter, 31837 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50658 SdHoareTripleChecker+Valid, 63872 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time
[2023-12-25 20:51:54,343 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50658 Valid, 63872 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time]
[2023-12-25 20:51:54,361 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25124 states.
[2023-12-25 20:51:54,592 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25124 to 13525.
[2023-12-25 20:51:54,603 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13525 states, 13524 states have (on average 1.6654096421177167) internal successors, (22523), 13524 states have internal predecessors, (22523), 0 states have call successors, (0), 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 20:51:54,616 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13525 states to 13525 states and 22523 transitions.
[2023-12-25 20:51:54,616 INFO  L78                 Accepts]: Start accepts. Automaton has 13525 states and 22523 transitions. Word has length 9005
[2023-12-25 20:51:54,620 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:51:54,620 INFO  L495      AbstractCegarLoop]: Abstraction has 13525 states and 22523 transitions.
[2023-12-25 20:51:54,621 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1624.0) internal successors, (8120), 5 states have internal predecessors, (8120), 0 states have call successors, (0), 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 20:51:54,621 INFO  L276                IsEmpty]: Start isEmpty. Operand 13525 states and 22523 transitions.
[2023-12-25 20:51:55,041 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9007
[2023-12-25 20:51:55,041 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:51:55,043 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 20:51:55,182 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 20:51:55,256 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 20:51:55,256 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:51:55,257 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:51:55,259 INFO  L85        PathProgramCache]: Analyzing trace with hash 2005992760, now seen corresponding path program 1 times
[2023-12-25 20:51:55,259 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:51:55,259 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733351443]
[2023-12-25 20:51:55,260 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:55,260 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:51:55,981 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:51:55,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1944448218]
[2023-12-25 20:51:55,983 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:55,983 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:51:55,983 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:51:55,984 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 20:51:55,985 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 20:52:06,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:52:06,921 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45342 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:52:07,021 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:52:08,123 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 20:52:08,123 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:52:08,247 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 20:52:08,247 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:52:08,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733351443]
[2023-12-25 20:52:08,247 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:52:08,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944448218]
[2023-12-25 20:52:08,247 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944448218] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:52:08,247 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:52:08,249 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:52:08,249 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721547657]
[2023-12-25 20:52:08,249 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:52:08,253 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:52:08,253 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:52:08,256 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:52:08,256 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:52:08,257 INFO  L87              Difference]: Start difference. First operand 13525 states and 22523 transitions. Second operand  has 5 states, 5 states have (on average 1624.6) internal successors, (8123), 5 states have internal predecessors, (8123), 0 states have call successors, (0), 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 20:52:21,911 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:52:21,912 INFO  L93              Difference]: Finished difference Result 47210 states and 78209 transitions.
[2023-12-25 20:52:21,912 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:52:21,913 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1624.6) internal successors, (8123), 5 states have internal predecessors, (8123), 0 states have call successors, (0), 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 20:52:21,919 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:52:21,940 INFO  L225             Difference]: With dead ends: 47210
[2023-12-25 20:52:21,940 INFO  L226             Difference]: Without dead ends: 25125
[2023-12-25 20:52:21,954 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 20:52:21,955 INFO  L413           NwaCegarLoop]: 32027 mSDtfsCounter, 34986 mSDsluCounter, 46278 mSDsCounter, 0 mSdLazyCounter, 21789 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34986 SdHoareTripleChecker+Valid, 78305 SdHoareTripleChecker+Invalid, 23004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 21789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time
[2023-12-25 20:52:21,955 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34986 Valid, 78305 Invalid, 23004 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 21789 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time]
[2023-12-25 20:52:21,971 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25125 states.
[2023-12-25 20:52:22,181 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25125 to 13527.
[2023-12-25 20:52:22,191 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13527 states, 13526 states have (on average 1.6653112524027798) internal successors, (22525), 13526 states have internal predecessors, (22525), 0 states have call successors, (0), 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 20:52:22,204 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13527 states to 13527 states and 22525 transitions.
[2023-12-25 20:52:22,204 INFO  L78                 Accepts]: Start accepts. Automaton has 13527 states and 22525 transitions. Word has length 9006
[2023-12-25 20:52:22,208 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:52:22,208 INFO  L495      AbstractCegarLoop]: Abstraction has 13527 states and 22525 transitions.
[2023-12-25 20:52:22,208 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1624.6) internal successors, (8123), 5 states have internal predecessors, (8123), 0 states have call successors, (0), 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 20:52:22,209 INFO  L276                IsEmpty]: Start isEmpty. Operand 13527 states and 22525 transitions.
[2023-12-25 20:52:22,619 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9008
[2023-12-25 20:52:22,620 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:52:22,622 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 20:52:22,751 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2023-12-25 20:52:22,840 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 20:52:22,840 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:52:22,840 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:52:22,842 INFO  L85        PathProgramCache]: Analyzing trace with hash -1233214248, now seen corresponding path program 1 times
[2023-12-25 20:52:22,842 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:52:22,842 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150532455]
[2023-12-25 20:52:22,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:52:22,843 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:52:23,487 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:52:23,488 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301598662]
[2023-12-25 20:52:23,489 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:52:23,489 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:52:23,489 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:52:23,490 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 20:52:23,492 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 20:52:33,810 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:52:34,113 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45346 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:52:34,213 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:52:35,353 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 20:52:35,354 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:52:35,484 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 20:52:35,484 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:52:35,485 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150532455]
[2023-12-25 20:52:35,485 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:52:35,485 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301598662]
[2023-12-25 20:52:35,485 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301598662] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:52:35,485 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:52:35,486 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:52:35,486 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533672958]
[2023-12-25 20:52:35,486 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:52:35,491 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:52:35,491 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:52:35,495 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:52:35,495 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:52:35,497 INFO  L87              Difference]: Start difference. First operand 13527 states and 22525 transitions. Second operand  has 5 states, 5 states have (on average 1625.2) internal successors, (8126), 5 states have internal predecessors, (8126), 0 states have call successors, (0), 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 20:52:49,664 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:52:49,664 INFO  L93              Difference]: Finished difference Result 47218 states and 78217 transitions.
[2023-12-25 20:52:49,664 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:52:49,666 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1625.2) internal successors, (8126), 5 states have internal predecessors, (8126), 0 states have call successors, (0), 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 20:52:49,671 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:52:49,693 INFO  L225             Difference]: With dead ends: 47218
[2023-12-25 20:52:49,693 INFO  L226             Difference]: Without dead ends: 25126
[2023-12-25 20:52:49,706 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 20:52:49,707 INFO  L413           NwaCegarLoop]: 32019 mSDtfsCounter, 34981 mSDsluCounter, 46270 mSDsCounter, 0 mSdLazyCounter, 21789 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34981 SdHoareTripleChecker+Valid, 78289 SdHoareTripleChecker+Invalid, 23004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 21789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time
[2023-12-25 20:52:49,707 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34981 Valid, 78289 Invalid, 23004 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 21789 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time]
[2023-12-25 20:52:49,726 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25126 states.
[2023-12-25 20:52:49,855 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25126 to 13529.
[2023-12-25 20:52:49,868 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13529 states, 13528 states have (on average 1.6652128917800118) internal successors, (22527), 13528 states have internal predecessors, (22527), 0 states have call successors, (0), 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 20:52:49,883 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13529 states to 13529 states and 22527 transitions.
[2023-12-25 20:52:49,883 INFO  L78                 Accepts]: Start accepts. Automaton has 13529 states and 22527 transitions. Word has length 9007
[2023-12-25 20:52:49,887 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:52:49,887 INFO  L495      AbstractCegarLoop]: Abstraction has 13529 states and 22527 transitions.
[2023-12-25 20:52:49,888 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1625.2) internal successors, (8126), 5 states have internal predecessors, (8126), 0 states have call successors, (0), 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 20:52:49,888 INFO  L276                IsEmpty]: Start isEmpty. Operand 13529 states and 22527 transitions.
[2023-12-25 20:52:50,348 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9009
[2023-12-25 20:52:50,348 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:52:50,350 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 20:52:50,482 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 20:52:50,552 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 20:52:50,553 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:52:50,553 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:52:50,554 INFO  L85        PathProgramCache]: Analyzing trace with hash 12607776, now seen corresponding path program 1 times
[2023-12-25 20:52:50,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:52:50,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504215975]
[2023-12-25 20:52:50,555 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:52:50,555 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:52:51,263 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:52:51,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186774761]
[2023-12-25 20:52:51,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:52:51,265 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:52:51,265 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:52:51,266 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 20:52:51,266 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 20:53:01,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:53:02,201 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45349 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:53:02,301 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:53:03,263 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 20:53:03,263 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:53:03,452 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 20:53:03,453 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:53:03,453 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504215975]
[2023-12-25 20:53:03,453 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:53:03,453 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186774761]
[2023-12-25 20:53:03,453 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [186774761] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:53:03,454 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:53:03,455 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:53:03,455 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835623598]
[2023-12-25 20:53:03,455 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:53:03,487 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:53:03,487 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:53:03,493 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:53:03,493 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:53:03,494 INFO  L87              Difference]: Start difference. First operand 13529 states and 22527 transitions. Second operand  has 5 states, 5 states have (on average 1625.8) internal successors, (8129), 5 states have internal predecessors, (8129), 0 states have call successors, (0), 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 20:53:18,237 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:53:18,237 INFO  L93              Difference]: Finished difference Result 47226 states and 78225 transitions.
[2023-12-25 20:53:18,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:53:18,239 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1625.8) internal successors, (8129), 5 states have internal predecessors, (8129), 0 states have call successors, (0), 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 20:53:18,244 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:53:18,262 INFO  L225             Difference]: With dead ends: 47226
[2023-12-25 20:53:18,262 INFO  L226             Difference]: Without dead ends: 25127
[2023-12-25 20:53:18,271 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18015 GetRequests, 18006 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 20:53:18,271 INFO  L413           NwaCegarLoop]: 32011 mSDtfsCounter, 34976 mSDsluCounter, 46262 mSDsCounter, 0 mSdLazyCounter, 21789 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34976 SdHoareTripleChecker+Valid, 78273 SdHoareTripleChecker+Invalid, 23004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 21789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time
[2023-12-25 20:53:18,271 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34976 Valid, 78273 Invalid, 23004 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 21789 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time]
[2023-12-25 20:53:18,287 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25127 states.
[2023-12-25 20:53:18,396 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25127 to 13531.
[2023-12-25 20:53:18,407 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13531 states, 13530 states have (on average 1.6651145602365114) internal successors, (22529), 13530 states have internal predecessors, (22529), 0 states have call successors, (0), 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 20:53:18,421 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13531 states to 13531 states and 22529 transitions.
[2023-12-25 20:53:18,421 INFO  L78                 Accepts]: Start accepts. Automaton has 13531 states and 22529 transitions. Word has length 9008
[2023-12-25 20:53:18,425 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:53:18,425 INFO  L495      AbstractCegarLoop]: Abstraction has 13531 states and 22529 transitions.
[2023-12-25 20:53:18,426 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1625.8) internal successors, (8129), 5 states have internal predecessors, (8129), 0 states have call successors, (0), 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 20:53:18,426 INFO  L276                IsEmpty]: Start isEmpty. Operand 13531 states and 22529 transitions.
[2023-12-25 20:53:18,924 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9010
[2023-12-25 20:53:18,924 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:53:18,926 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 20:53:19,061 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 20:53:19,127 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 20:53:19,127 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:53:19,128 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:53:19,129 INFO  L85        PathProgramCache]: Analyzing trace with hash 2005608818, now seen corresponding path program 1 times
[2023-12-25 20:53:19,129 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:53:19,129 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976062242]
[2023-12-25 20:53:19,129 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:53:19,130 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:53:19,779 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:53:19,779 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1869599356]
[2023-12-25 20:53:19,781 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:53:19,781 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:53:19,781 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:53:19,782 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 20:53:19,782 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 20:53:30,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:53:30,644 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45352 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 20:53:30,738 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:53:31,722 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 20:53:31,723 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:53:31,979 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 20:53:31,979 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:53:31,979 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976062242]
[2023-12-25 20:53:31,979 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:53:31,979 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869599356]
[2023-12-25 20:53:31,979 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869599356] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:53:31,979 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:53:31,981 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12
[2023-12-25 20:53:31,981 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735302537]
[2023-12-25 20:53:31,981 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:53:31,985 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 20:53:31,985 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:53:31,989 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 20:53:31,989 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 20:53:31,991 INFO  L87              Difference]: Start difference. First operand 13531 states and 22529 transitions. Second operand  has 6 states, 6 states have (on average 1355.3333333333333) internal successors, (8132), 6 states have internal predecessors, (8132), 0 states have call successors, (0), 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 20:53:59,020 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:53:59,020 INFO  L93              Difference]: Finished difference Result 58913 states and 97676 transitions.
[2023-12-25 20:53:59,020 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 20:53:59,022 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1355.3333333333333) internal successors, (8132), 6 states have internal predecessors, (8132), 0 states have call successors, (0), 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 20:53:59,027 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:53:59,052 INFO  L225             Difference]: With dead ends: 58913
[2023-12-25 20:53:59,052 INFO  L226             Difference]: Without dead ends: 36807
[2023-12-25 20:53:59,057 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18018 GetRequests, 18006 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 20:53:59,058 INFO  L413           NwaCegarLoop]: 32005 mSDtfsCounter, 54302 mSDsluCounter, 108632 mSDsCounter, 0 mSdLazyCounter, 46653 mSolverCounterSat, 1217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54302 SdHoareTripleChecker+Valid, 140637 SdHoareTripleChecker+Invalid, 47870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1217 IncrementalHoareTripleChecker+Valid, 46653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time
[2023-12-25 20:53:59,058 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [54302 Valid, 140637 Invalid, 47870 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1217 Valid, 46653 Invalid, 0 Unknown, 0 Unchecked, 25.9s Time]
[2023-12-25 20:53:59,078 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36807 states.
[2023-12-25 20:53:59,214 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36807 to 13533.
[2023-12-25 20:53:59,225 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13533 states, 13532 states have (on average 1.6650162577593852) internal successors, (22531), 13532 states have internal predecessors, (22531), 0 states have call successors, (0), 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 20:53:59,239 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13533 states to 13533 states and 22531 transitions.
[2023-12-25 20:53:59,239 INFO  L78                 Accepts]: Start accepts. Automaton has 13533 states and 22531 transitions. Word has length 9009
[2023-12-25 20:53:59,243 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:53:59,243 INFO  L495      AbstractCegarLoop]: Abstraction has 13533 states and 22531 transitions.
[2023-12-25 20:53:59,244 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1355.3333333333333) internal successors, (8132), 6 states have internal predecessors, (8132), 0 states have call successors, (0), 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 20:53:59,244 INFO  L276                IsEmpty]: Start isEmpty. Operand 13533 states and 22531 transitions.
[2023-12-25 20:53:59,711 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9011
[2023-12-25 20:53:59,711 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:53:59,713 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 20:53:59,845 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 20:53:59,913 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 20:53:59,914 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:53:59,914 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:53:59,915 INFO  L85        PathProgramCache]: Analyzing trace with hash 858034566, now seen corresponding path program 1 times
[2023-12-25 20:53:59,915 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:53:59,915 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110370855]
[2023-12-25 20:53:59,916 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:53:59,916 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:54:00,659 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:54:00,659 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292911005]
[2023-12-25 20:54:00,661 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:00,661 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:54:00,661 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:54:00,662 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 20:54:00,663 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 20:54:11,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:54:11,744 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45355 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:54:11,841 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:54:12,805 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 20:54:12,806 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:54:12,938 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 20:54:12,938 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:54:12,938 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110370855]
[2023-12-25 20:54:12,938 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:54:12,938 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292911005]
[2023-12-25 20:54:12,938 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [292911005] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:54:12,938 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:54:12,940 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:54:12,940 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862245814]
[2023-12-25 20:54:12,940 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:54:12,944 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:54:12,944 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:54:12,947 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:54:12,947 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:54:12,948 INFO  L87              Difference]: Start difference. First operand 13533 states and 22531 transitions. Second operand  has 5 states, 5 states have (on average 1627.0) internal successors, (8135), 5 states have internal predecessors, (8135), 0 states have call successors, (0), 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 20:54:25,273 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:54:25,273 INFO  L93              Difference]: Finished difference Result 47242 states and 78241 transitions.
[2023-12-25 20:54:25,273 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:54:25,275 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1627.0) internal successors, (8135), 5 states have internal predecessors, (8135), 0 states have call successors, (0), 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 20:54:25,280 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:54:25,298 INFO  L225             Difference]: With dead ends: 47242
[2023-12-25 20:54:25,299 INFO  L226             Difference]: Without dead ends: 25129
[2023-12-25 20:54:25,309 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 20:54:25,310 INFO  L413           NwaCegarLoop]: 31995 mSDtfsCounter, 50602 mSDsluCounter, 31813 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50602 SdHoareTripleChecker+Valid, 63808 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time
[2023-12-25 20:54:25,310 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50602 Valid, 63808 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time]
[2023-12-25 20:54:25,325 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25129 states.
[2023-12-25 20:54:25,434 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25129 to 13535.
[2023-12-25 20:54:25,444 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13535 states, 13534 states have (on average 1.6649179843357471) internal successors, (22533), 13534 states have internal predecessors, (22533), 0 states have call successors, (0), 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 20:54:25,458 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13535 states to 13535 states and 22533 transitions.
[2023-12-25 20:54:25,458 INFO  L78                 Accepts]: Start accepts. Automaton has 13535 states and 22533 transitions. Word has length 9010
[2023-12-25 20:54:25,462 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:54:25,462 INFO  L495      AbstractCegarLoop]: Abstraction has 13535 states and 22533 transitions.
[2023-12-25 20:54:25,463 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1627.0) internal successors, (8135), 5 states have internal predecessors, (8135), 0 states have call successors, (0), 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 20:54:25,463 INFO  L276                IsEmpty]: Start isEmpty. Operand 13535 states and 22533 transitions.
[2023-12-25 20:54:25,904 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9012
[2023-12-25 20:54:25,904 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:54:25,906 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 20:54:26,044 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 20:54:26,106 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 20:54:26,107 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:54:26,107 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:54:26,108 INFO  L85        PathProgramCache]: Analyzing trace with hash 1439512206, now seen corresponding path program 1 times
[2023-12-25 20:54:26,108 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:54:26,108 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452136643]
[2023-12-25 20:54:26,109 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:26,109 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:54:26,791 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:54:26,791 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1070497385]
[2023-12-25 20:54:26,793 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:26,793 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:54:26,793 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:54:26,794 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 20:54:26,794 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 20:54:37,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:54:37,624 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45359 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:54:37,754 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:54:38,668 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 20:54:38,668 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:54:38,804 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 20:54:38,805 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:54:38,805 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452136643]
[2023-12-25 20:54:38,805 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:54:38,805 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070497385]
[2023-12-25 20:54:38,805 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070497385] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:54:38,805 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:54:38,806 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:54:38,806 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945617240]
[2023-12-25 20:54:38,807 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:54:38,810 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:54:38,811 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:54:38,814 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:54:38,814 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:54:38,815 INFO  L87              Difference]: Start difference. First operand 13535 states and 22533 transitions. Second operand  has 5 states, 5 states have (on average 1627.6) internal successors, (8138), 5 states have internal predecessors, (8138), 0 states have call successors, (0), 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 20:54:53,001 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:54:53,001 INFO  L93              Difference]: Finished difference Result 47250 states and 78249 transitions.
[2023-12-25 20:54:53,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:54:53,003 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1627.6) internal successors, (8138), 5 states have internal predecessors, (8138), 0 states have call successors, (0), 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 20:54:53,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:54:53,027 INFO  L225             Difference]: With dead ends: 47250
[2023-12-25 20:54:53,027 INFO  L226             Difference]: Without dead ends: 25130
[2023-12-25 20:54:53,038 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18021 GetRequests, 18012 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 20:54:53,039 INFO  L413           NwaCegarLoop]: 31987 mSDtfsCounter, 34944 mSDsluCounter, 48484 mSDsCounter, 0 mSdLazyCounter, 22665 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34944 SdHoareTripleChecker+Valid, 80471 SdHoareTripleChecker+Invalid, 23880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 22665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time
[2023-12-25 20:54:53,039 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34944 Valid, 80471 Invalid, 23880 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 22665 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time]
[2023-12-25 20:54:53,056 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25130 states.
[2023-12-25 20:54:53,168 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25130 to 13537.
[2023-12-25 20:54:53,179 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13537 states, 13536 states have (on average 1.6648197399527187) internal successors, (22535), 13536 states have internal predecessors, (22535), 0 states have call successors, (0), 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 20:54:53,193 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13537 states to 13537 states and 22535 transitions.
[2023-12-25 20:54:53,193 INFO  L78                 Accepts]: Start accepts. Automaton has 13537 states and 22535 transitions. Word has length 9011
[2023-12-25 20:54:53,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:54:53,197 INFO  L495      AbstractCegarLoop]: Abstraction has 13537 states and 22535 transitions.
[2023-12-25 20:54:53,198 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1627.6) internal successors, (8138), 5 states have internal predecessors, (8138), 0 states have call successors, (0), 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 20:54:53,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 13537 states and 22535 transitions.
[2023-12-25 20:54:53,633 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9013
[2023-12-25 20:54:53,633 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:54:53,635 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 20:54:53,764 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 20:54:53,835 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 20:54:53,836 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:54:53,836 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:54:53,837 INFO  L85        PathProgramCache]: Analyzing trace with hash -1315963282, now seen corresponding path program 1 times
[2023-12-25 20:54:53,837 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:54:53,837 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906870209]
[2023-12-25 20:54:53,838 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:53,838 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:54:54,524 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:54:54,524 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980805051]
[2023-12-25 20:54:54,526 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:54:54,526 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:54:54,526 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:54:54,527 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 20:54:54,527 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 20:55:04,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:55:05,074 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45362 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:55:05,170 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:55:06,243 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 20:55:06,243 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:55:06,378 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 20:55:06,378 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:55:06,378 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906870209]
[2023-12-25 20:55:06,378 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:55:06,378 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980805051]
[2023-12-25 20:55:06,378 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980805051] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:55:06,379 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:55:06,380 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:55:06,380 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329780043]
[2023-12-25 20:55:06,380 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:55:06,384 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:55:06,384 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:55:06,387 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:55:06,387 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:55:06,388 INFO  L87              Difference]: Start difference. First operand 13537 states and 22535 transitions. Second operand  has 5 states, 5 states have (on average 1628.2) internal successors, (8141), 5 states have internal predecessors, (8141), 0 states have call successors, (0), 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 20:55:18,705 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:55:18,705 INFO  L93              Difference]: Finished difference Result 47258 states and 78257 transitions.
[2023-12-25 20:55:18,705 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:55:18,707 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1628.2) internal successors, (8141), 5 states have internal predecessors, (8141), 0 states have call successors, (0), 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 20:55:18,713 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:55:18,733 INFO  L225             Difference]: With dead ends: 47258
[2023-12-25 20:55:18,733 INFO  L226             Difference]: Without dead ends: 25131
[2023-12-25 20:55:18,744 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 20:55:18,746 INFO  L413           NwaCegarLoop]: 31979 mSDtfsCounter, 50584 mSDsluCounter, 31803 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50584 SdHoareTripleChecker+Valid, 63782 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time
[2023-12-25 20:55:18,746 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50584 Valid, 63782 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time]
[2023-12-25 20:55:18,766 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25131 states.
[2023-12-25 20:55:18,888 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25131 to 13539.
[2023-12-25 20:55:18,901 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13539 states, 13538 states have (on average 1.6647215245974294) internal successors, (22537), 13538 states have internal predecessors, (22537), 0 states have call successors, (0), 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 20:55:18,915 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 22537 transitions.
[2023-12-25 20:55:18,915 INFO  L78                 Accepts]: Start accepts. Automaton has 13539 states and 22537 transitions. Word has length 9012
[2023-12-25 20:55:18,919 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:55:18,919 INFO  L495      AbstractCegarLoop]: Abstraction has 13539 states and 22537 transitions.
[2023-12-25 20:55:18,920 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1628.2) internal successors, (8141), 5 states have internal predecessors, (8141), 0 states have call successors, (0), 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 20:55:18,920 INFO  L276                IsEmpty]: Start isEmpty. Operand 13539 states and 22537 transitions.
[2023-12-25 20:55:19,359 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9014
[2023-12-25 20:55:19,359 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:55:19,361 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 20:55:19,484 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2023-12-25 20:55:19,561 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 20:55:19,562 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:55:19,562 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:55:19,563 INFO  L85        PathProgramCache]: Analyzing trace with hash -1691576536, now seen corresponding path program 1 times
[2023-12-25 20:55:19,563 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:55:19,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226767044]
[2023-12-25 20:55:19,564 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:19,564 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:55:20,241 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:55:20,241 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953937278]
[2023-12-25 20:55:20,242 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:20,243 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:55:20,243 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:55:20,243 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 20:55:20,244 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 20:55:30,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:55:31,091 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45365 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:55:31,233 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:55:32,135 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 20:55:32,135 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:55:32,276 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 20:55:32,276 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:55:32,276 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226767044]
[2023-12-25 20:55:32,276 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:55:32,276 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953937278]
[2023-12-25 20:55:32,276 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [953937278] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:55:32,276 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:55:32,277 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:55:32,278 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297201162]
[2023-12-25 20:55:32,278 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:55:32,282 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:55:32,282 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:55:32,285 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:55:32,285 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:55:32,285 INFO  L87              Difference]: Start difference. First operand 13539 states and 22537 transitions. Second operand  has 5 states, 5 states have (on average 1628.8) internal successors, (8144), 5 states have internal predecessors, (8144), 0 states have call successors, (0), 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 20:55:44,729 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:55:44,729 INFO  L93              Difference]: Finished difference Result 47266 states and 78265 transitions.
[2023-12-25 20:55:44,731 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:55:44,732 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1628.8) internal successors, (8144), 5 states have internal predecessors, (8144), 0 states have call successors, (0), 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 20:55:44,738 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:55:44,755 INFO  L225             Difference]: With dead ends: 47266
[2023-12-25 20:55:44,755 INFO  L226             Difference]: Without dead ends: 25132
[2023-12-25 20:55:44,764 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 20:55:44,764 INFO  L413           NwaCegarLoop]: 31971 mSDtfsCounter, 50594 mSDsluCounter, 31797 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50594 SdHoareTripleChecker+Valid, 63768 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time
[2023-12-25 20:55:44,764 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50594 Valid, 63768 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time]
[2023-12-25 20:55:44,780 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25132 states.
[2023-12-25 20:55:44,885 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25132 to 13541.
[2023-12-25 20:55:44,896 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13541 states, 13540 states have (on average 1.6646233382570161) internal successors, (22539), 13540 states have internal predecessors, (22539), 0 states have call successors, (0), 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 20:55:44,909 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13541 states to 13541 states and 22539 transitions.
[2023-12-25 20:55:44,910 INFO  L78                 Accepts]: Start accepts. Automaton has 13541 states and 22539 transitions. Word has length 9013
[2023-12-25 20:55:44,913 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:55:44,913 INFO  L495      AbstractCegarLoop]: Abstraction has 13541 states and 22539 transitions.
[2023-12-25 20:55:44,914 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1628.8) internal successors, (8144), 5 states have internal predecessors, (8144), 0 states have call successors, (0), 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 20:55:44,914 INFO  L276                IsEmpty]: Start isEmpty. Operand 13541 states and 22539 transitions.
[2023-12-25 20:55:45,362 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9015
[2023-12-25 20:55:45,362 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:55:45,364 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 20:55:45,482 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 20:55:45,565 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 20:55:45,565 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:55:45,565 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:55:45,566 INFO  L85        PathProgramCache]: Analyzing trace with hash -535285036, now seen corresponding path program 1 times
[2023-12-25 20:55:45,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:55:45,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143578815]
[2023-12-25 20:55:45,567 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:45,567 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:55:46,244 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:55:46,244 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608567892]
[2023-12-25 20:55:46,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:46,246 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:55:46,246 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:55:46,247 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 20:55:46,248 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 20:55:57,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:55:57,531 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45368 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:55:57,625 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:55:58,604 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 20:55:58,604 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:55:58,747 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 20:55:58,747 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:55:58,747 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143578815]
[2023-12-25 20:55:58,747 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:55:58,747 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608567892]
[2023-12-25 20:55:58,747 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [608567892] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:55:58,747 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:55:58,748 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:55:58,749 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726300008]
[2023-12-25 20:55:58,749 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:55:58,752 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:55:58,752 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:55:58,755 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:55:58,755 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:55:58,756 INFO  L87              Difference]: Start difference. First operand 13541 states and 22539 transitions. Second operand  has 5 states, 5 states have (on average 1629.4) internal successors, (8147), 5 states have internal predecessors, (8147), 0 states have call successors, (0), 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 20:56:11,070 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:56:11,070 INFO  L93              Difference]: Finished difference Result 47274 states and 78273 transitions.
[2023-12-25 20:56:11,070 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:56:11,072 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1629.4) internal successors, (8147), 5 states have internal predecessors, (8147), 0 states have call successors, (0), 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 20:56:11,078 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:56:11,100 INFO  L225             Difference]: With dead ends: 47274
[2023-12-25 20:56:11,100 INFO  L226             Difference]: Without dead ends: 25133
[2023-12-25 20:56:11,112 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18027 GetRequests, 18018 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 20:56:11,113 INFO  L413           NwaCegarLoop]: 31963 mSDtfsCounter, 50566 mSDsluCounter, 31793 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50566 SdHoareTripleChecker+Valid, 63756 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time
[2023-12-25 20:56:11,113 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50566 Valid, 63756 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time]
[2023-12-25 20:56:11,132 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25133 states.
[2023-12-25 20:56:11,263 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25133 to 13543.
[2023-12-25 20:56:11,277 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13543 states, 13542 states have (on average 1.6645251809186234) internal successors, (22541), 13542 states have internal predecessors, (22541), 0 states have call successors, (0), 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 20:56:11,292 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13543 states to 13543 states and 22541 transitions.
[2023-12-25 20:56:11,292 INFO  L78                 Accepts]: Start accepts. Automaton has 13543 states and 22541 transitions. Word has length 9014
[2023-12-25 20:56:11,297 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:56:11,297 INFO  L495      AbstractCegarLoop]: Abstraction has 13543 states and 22541 transitions.
[2023-12-25 20:56:11,298 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1629.4) internal successors, (8147), 5 states have internal predecessors, (8147), 0 states have call successors, (0), 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 20:56:11,298 INFO  L276                IsEmpty]: Start isEmpty. Operand 13543 states and 22541 transitions.
[2023-12-25 20:56:11,725 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9016
[2023-12-25 20:56:11,725 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:56:11,727 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 20:56:11,854 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 20:56:11,927 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 20:56:11,928 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:56:11,928 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:56:11,929 INFO  L85        PathProgramCache]: Analyzing trace with hash 575540548, now seen corresponding path program 1 times
[2023-12-25 20:56:11,929 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:56:11,929 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74969566]
[2023-12-25 20:56:11,930 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:56:11,930 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:56:12,619 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:56:12,619 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441486682]
[2023-12-25 20:56:12,621 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:56:12,621 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:56:12,621 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:56:12,622 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 20:56:12,623 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 20:56:23,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:56:23,348 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45372 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:56:23,449 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:56:24,510 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 20:56:24,510 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:56:24,653 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 20:56:24,653 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:56:24,654 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74969566]
[2023-12-25 20:56:24,654 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:56:24,654 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441486682]
[2023-12-25 20:56:24,654 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441486682] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:56:24,654 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:56:24,655 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:56:24,655 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510749318]
[2023-12-25 20:56:24,655 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:56:24,660 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:56:24,660 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:56:24,663 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:56:24,663 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:56:24,664 INFO  L87              Difference]: Start difference. First operand 13543 states and 22541 transitions. Second operand  has 5 states, 5 states have (on average 1630.0) internal successors, (8150), 5 states have internal predecessors, (8150), 0 states have call successors, (0), 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 20:56:37,072 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:56:37,072 INFO  L93              Difference]: Finished difference Result 47282 states and 78281 transitions.
[2023-12-25 20:56:37,072 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:56:37,074 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1630.0) internal successors, (8150), 5 states have internal predecessors, (8150), 0 states have call successors, (0), 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 20:56:37,079 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:56:37,096 INFO  L225             Difference]: With dead ends: 47282
[2023-12-25 20:56:37,096 INFO  L226             Difference]: Without dead ends: 25134
[2023-12-25 20:56:37,105 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 20:56:37,105 INFO  L413           NwaCegarLoop]: 31955 mSDtfsCounter, 50578 mSDsluCounter, 31787 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50578 SdHoareTripleChecker+Valid, 63742 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time
[2023-12-25 20:56:37,106 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50578 Valid, 63742 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time]
[2023-12-25 20:56:37,120 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25134 states.
[2023-12-25 20:56:37,220 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25134 to 13545.
[2023-12-25 20:56:37,230 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13545 states, 13544 states have (on average 1.6644270525694034) internal successors, (22543), 13544 states have internal predecessors, (22543), 0 states have call successors, (0), 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 20:56:37,243 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13545 states to 13545 states and 22543 transitions.
[2023-12-25 20:56:37,243 INFO  L78                 Accepts]: Start accepts. Automaton has 13545 states and 22543 transitions. Word has length 9015
[2023-12-25 20:56:37,247 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:56:37,247 INFO  L495      AbstractCegarLoop]: Abstraction has 13545 states and 22543 transitions.
[2023-12-25 20:56:37,248 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1630.0) internal successors, (8150), 5 states have internal predecessors, (8150), 0 states have call successors, (0), 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 20:56:37,248 INFO  L276                IsEmpty]: Start isEmpty. Operand 13545 states and 22543 transitions.
[2023-12-25 20:56:37,704 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9017
[2023-12-25 20:56:37,704 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:56:37,706 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 20:56:37,829 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 20:56:37,906 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 20:56:37,907 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:56:37,907 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:56:37,908 INFO  L85        PathProgramCache]: Analyzing trace with hash 202354876, now seen corresponding path program 1 times
[2023-12-25 20:56:37,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:56:37,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490429993]
[2023-12-25 20:56:37,909 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:56:37,909 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:56:38,563 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:56:38,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230905600]
[2023-12-25 20:56:38,565 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:56:38,565 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:56:38,565 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:56:38,566 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 20:56:38,567 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 20:56:49,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:56:49,375 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45375 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:56:49,465 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:56:50,322 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 20:56:50,322 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:56:50,569 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 20:56:50,569 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:56:50,569 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490429993]
[2023-12-25 20:56:50,569 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:56:50,569 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230905600]
[2023-12-25 20:56:50,569 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230905600] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:56:50,569 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:56:50,571 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:56:50,571 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396061851]
[2023-12-25 20:56:50,571 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:56:50,575 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:56:50,575 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:56:50,578 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:56:50,579 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:56:50,579 INFO  L87              Difference]: Start difference. First operand 13545 states and 22543 transitions. Second operand  has 5 states, 5 states have (on average 1630.6) internal successors, (8153), 5 states have internal predecessors, (8153), 0 states have call successors, (0), 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 20:57:02,866 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:57:02,866 INFO  L93              Difference]: Finished difference Result 47290 states and 78289 transitions.
[2023-12-25 20:57:02,866 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:57:02,868 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1630.6) internal successors, (8153), 5 states have internal predecessors, (8153), 0 states have call successors, (0), 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 20:57:02,873 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:57:02,892 INFO  L225             Difference]: With dead ends: 47290
[2023-12-25 20:57:02,892 INFO  L226             Difference]: Without dead ends: 25135
[2023-12-25 20:57:02,903 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 20:57:02,904 INFO  L413           NwaCegarLoop]: 31947 mSDtfsCounter, 50570 mSDsluCounter, 31782 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50570 SdHoareTripleChecker+Valid, 63729 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time
[2023-12-25 20:57:02,904 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50570 Valid, 63729 Invalid, 18140 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time]
[2023-12-25 20:57:02,920 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25135 states.
[2023-12-25 20:57:03,032 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25135 to 13547.
[2023-12-25 20:57:03,043 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13547 states, 13546 states have (on average 1.6643289531965155) internal successors, (22545), 13546 states have internal predecessors, (22545), 0 states have call successors, (0), 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 20:57:03,056 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13547 states to 13547 states and 22545 transitions.
[2023-12-25 20:57:03,057 INFO  L78                 Accepts]: Start accepts. Automaton has 13547 states and 22545 transitions. Word has length 9016
[2023-12-25 20:57:03,061 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:57:03,061 INFO  L495      AbstractCegarLoop]: Abstraction has 13547 states and 22545 transitions.
[2023-12-25 20:57:03,061 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1630.6) internal successors, (8153), 5 states have internal predecessors, (8153), 0 states have call successors, (0), 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 20:57:03,061 INFO  L276                IsEmpty]: Start isEmpty. Operand 13547 states and 22545 transitions.
[2023-12-25 20:57:03,490 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9018
[2023-12-25 20:57:03,490 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:57:03,492 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 20:57:03,612 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 20:57:03,692 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 20:57:03,693 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:57:03,693 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:57:03,694 INFO  L85        PathProgramCache]: Analyzing trace with hash 2011482590, now seen corresponding path program 1 times
[2023-12-25 20:57:03,694 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:57:03,694 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695509369]
[2023-12-25 20:57:03,695 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:57:03,695 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:57:04,395 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:57:04,395 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1463021478]
[2023-12-25 20:57:04,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:57:04,397 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:57:04,397 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:57:04,398 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 20:57:04,399 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 20:57:14,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:57:15,075 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45378 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 20:57:15,161 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:57:16,102 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 20:57:16,103 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:57:16,273 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 20:57:16,273 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:57:16,273 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695509369]
[2023-12-25 20:57:16,273 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:57:16,273 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463021478]
[2023-12-25 20:57:16,273 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463021478] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:57:16,273 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:57:16,274 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12
[2023-12-25 20:57:16,275 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172273733]
[2023-12-25 20:57:16,275 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:57:16,279 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 20:57:16,279 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:57:16,282 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 20:57:16,282 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 20:57:16,282 INFO  L87              Difference]: Start difference. First operand 13547 states and 22545 transitions. Second operand  has 6 states, 6 states have (on average 1359.3333333333333) internal successors, (8156), 6 states have internal predecessors, (8156), 0 states have call successors, (0), 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 20:57:38,849 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:57:38,849 INFO  L93              Difference]: Finished difference Result 59017 states and 97796 transitions.
[2023-12-25 20:57:38,849 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 20:57:38,851 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1359.3333333333333) internal successors, (8156), 6 states have internal predecessors, (8156), 0 states have call successors, (0), 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 20:57:38,856 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:57:38,882 INFO  L225             Difference]: With dead ends: 59017
[2023-12-25 20:57:38,882 INFO  L226             Difference]: Without dead ends: 36855
[2023-12-25 20:57:38,889 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18034 GetRequests, 18022 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 20:57:38,890 INFO  L413           NwaCegarLoop]: 31941 mSDtfsCounter, 69909 mSDsluCounter, 77383 mSDsCounter, 0 mSdLazyCounter, 36048 mSolverCounterSat, 1218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69909 SdHoareTripleChecker+Valid, 109324 SdHoareTripleChecker+Invalid, 37266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1218 IncrementalHoareTripleChecker+Valid, 36048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time
[2023-12-25 20:57:38,890 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [69909 Valid, 109324 Invalid, 37266 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1218 Valid, 36048 Invalid, 0 Unknown, 0 Unchecked, 21.6s Time]
[2023-12-25 20:57:38,911 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36855 states.
[2023-12-25 20:57:39,052 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36855 to 13549.
[2023-12-25 20:57:39,063 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13549 states, 13548 states have (on average 1.6642308827871273) internal successors, (22547), 13548 states have internal predecessors, (22547), 0 states have call successors, (0), 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 20:57:39,076 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13549 states to 13549 states and 22547 transitions.
[2023-12-25 20:57:39,076 INFO  L78                 Accepts]: Start accepts. Automaton has 13549 states and 22547 transitions. Word has length 9017
[2023-12-25 20:57:39,080 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:57:39,080 INFO  L495      AbstractCegarLoop]: Abstraction has 13549 states and 22547 transitions.
[2023-12-25 20:57:39,081 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1359.3333333333333) internal successors, (8156), 6 states have internal predecessors, (8156), 0 states have call successors, (0), 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 20:57:39,081 INFO  L276                IsEmpty]: Start isEmpty. Operand 13549 states and 22547 transitions.
[2023-12-25 20:57:39,539 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9019
[2023-12-25 20:57:39,539 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:57:39,541 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 20:57:39,657 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 20:57:39,741 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 20:57:39,741 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:57:39,742 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:57:39,743 INFO  L85        PathProgramCache]: Analyzing trace with hash -111711966, now seen corresponding path program 1 times
[2023-12-25 20:57:39,743 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:57:39,743 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142099882]
[2023-12-25 20:57:39,743 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:57:39,743 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:57:40,421 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:57:40,421 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1213915142]
[2023-12-25 20:57:40,423 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:57:40,423 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:57:40,423 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:57:40,424 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 20:57:40,425 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 20:57:50,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:57:51,191 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45381 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:57:51,287 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:57:52,206 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 20:57:52,206 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:57:52,358 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 20:57:52,358 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:57:52,358 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142099882]
[2023-12-25 20:57:52,358 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:57:52,358 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213915142]
[2023-12-25 20:57:52,358 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213915142] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:57:52,358 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:57:52,360 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:57:52,360 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101636419]
[2023-12-25 20:57:52,360 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:57:52,363 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:57:52,363 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:57:52,366 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:57:52,366 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:57:52,367 INFO  L87              Difference]: Start difference. First operand 13549 states and 22547 transitions. Second operand  has 5 states, 5 states have (on average 1631.8) internal successors, (8159), 5 states have internal predecessors, (8159), 0 states have call successors, (0), 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 20:58:04,661 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:58:04,661 INFO  L93              Difference]: Finished difference Result 47306 states and 78305 transitions.
[2023-12-25 20:58:04,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:58:04,663 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1631.8) internal successors, (8159), 5 states have internal predecessors, (8159), 0 states have call successors, (0), 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 20:58:04,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:58:04,688 INFO  L225             Difference]: With dead ends: 47306
[2023-12-25 20:58:04,688 INFO  L226             Difference]: Without dead ends: 25137
[2023-12-25 20:58:04,698 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 20:58:04,698 INFO  L413           NwaCegarLoop]: 31931 mSDtfsCounter, 50554 mSDsluCounter, 31772 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50554 SdHoareTripleChecker+Valid, 63703 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time
[2023-12-25 20:58:04,699 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50554 Valid, 63703 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time]
[2023-12-25 20:58:04,714 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25137 states.
[2023-12-25 20:58:04,832 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25137 to 13551.
[2023-12-25 20:58:04,842 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13551 states, 13550 states have (on average 1.6641328413284133) internal successors, (22549), 13550 states have internal predecessors, (22549), 0 states have call successors, (0), 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 20:58:04,854 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13551 states to 13551 states and 22549 transitions.
[2023-12-25 20:58:04,855 INFO  L78                 Accepts]: Start accepts. Automaton has 13551 states and 22549 transitions. Word has length 9018
[2023-12-25 20:58:04,858 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:58:04,859 INFO  L495      AbstractCegarLoop]: Abstraction has 13551 states and 22549 transitions.
[2023-12-25 20:58:04,859 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1631.8) internal successors, (8159), 5 states have internal predecessors, (8159), 0 states have call successors, (0), 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 20:58:04,859 INFO  L276                IsEmpty]: Start isEmpty. Operand 13551 states and 22549 transitions.
[2023-12-25 20:58:05,302 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9020
[2023-12-25 20:58:05,302 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:58:05,304 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 20:58:05,430 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 20:58:05,504 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 20:58:05,505 INFO  L420      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:58:05,505 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:58:05,506 INFO  L85        PathProgramCache]: Analyzing trace with hash -759256838, now seen corresponding path program 1 times
[2023-12-25 20:58:05,506 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:58:05,506 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525995443]
[2023-12-25 20:58:05,507 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:58:05,507 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:58:06,176 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:58:06,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1213920474]
[2023-12-25 20:58:06,178 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:58:06,178 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:58:06,178 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:58:06,179 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 20:58:06,180 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 20:58:16,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:58:16,977 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45385 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:58:17,075 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:58:17,931 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 20:58:17,931 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:58:18,089 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 20:58:18,089 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:58:18,089 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525995443]
[2023-12-25 20:58:18,089 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:58:18,089 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213920474]
[2023-12-25 20:58:18,177 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213920474] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:58:18,177 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:58:18,179 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:58:18,179 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233190400]
[2023-12-25 20:58:18,179 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:58:18,183 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:58:18,183 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:58:18,186 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:58:18,187 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:58:18,187 INFO  L87              Difference]: Start difference. First operand 13551 states and 22549 transitions. Second operand  has 5 states, 5 states have (on average 1632.4) internal successors, (8162), 5 states have internal predecessors, (8162), 0 states have call successors, (0), 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 20:58:30,453 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:58:30,454 INFO  L93              Difference]: Finished difference Result 47314 states and 78313 transitions.
[2023-12-25 20:58:30,454 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:58:30,456 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1632.4) internal successors, (8162), 5 states have internal predecessors, (8162), 0 states have call successors, (0), 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 20:58:30,462 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:58:30,484 INFO  L225             Difference]: With dead ends: 47314
[2023-12-25 20:58:30,484 INFO  L226             Difference]: Without dead ends: 25138
[2023-12-25 20:58:30,496 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18037 GetRequests, 18028 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 20:58:30,497 INFO  L413           NwaCegarLoop]: 31923 mSDtfsCounter, 50546 mSDsluCounter, 31767 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50546 SdHoareTripleChecker+Valid, 63690 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time
[2023-12-25 20:58:30,497 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50546 Valid, 63690 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time]
[2023-12-25 20:58:30,518 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25138 states.
[2023-12-25 20:58:30,655 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25138 to 13553.
[2023-12-25 20:58:30,669 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13553 states, 13552 states have (on average 1.6640348288075562) internal successors, (22551), 13552 states have internal predecessors, (22551), 0 states have call successors, (0), 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 20:58:30,684 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13553 states to 13553 states and 22551 transitions.
[2023-12-25 20:58:30,684 INFO  L78                 Accepts]: Start accepts. Automaton has 13553 states and 22551 transitions. Word has length 9019
[2023-12-25 20:58:30,688 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:58:30,689 INFO  L495      AbstractCegarLoop]: Abstraction has 13553 states and 22551 transitions.
[2023-12-25 20:58:30,690 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1632.4) internal successors, (8162), 5 states have internal predecessors, (8162), 0 states have call successors, (0), 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 20:58:30,690 INFO  L276                IsEmpty]: Start isEmpty. Operand 13553 states and 22551 transitions.
[2023-12-25 20:58:31,118 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9021
[2023-12-25 20:58:31,118 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:58:31,120 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 20:58:31,258 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 20:58:31,320 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 20:58:31,321 INFO  L420      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:58:31,321 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:58:31,322 INFO  L85        PathProgramCache]: Analyzing trace with hash 1181415434, now seen corresponding path program 1 times
[2023-12-25 20:58:31,322 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:58:31,322 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527929731]
[2023-12-25 20:58:31,323 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:58:31,323 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:58:32,048 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:58:32,049 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [14471455]
[2023-12-25 20:58:32,050 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:58:32,051 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:58:32,051 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:58:32,052 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 20:58:32,052 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 20:58:42,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:58:42,881 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45388 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:58:43,019 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:58:43,914 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 20:58:43,914 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:58:44,070 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 20:58:44,070 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:58:44,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527929731]
[2023-12-25 20:58:44,070 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:58:44,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14471455]
[2023-12-25 20:58:44,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [14471455] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:58:44,070 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:58:44,072 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:58:44,072 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090546126]
[2023-12-25 20:58:44,072 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:58:44,076 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:58:44,076 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:58:44,079 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:58:44,080 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:58:44,081 INFO  L87              Difference]: Start difference. First operand 13553 states and 22551 transitions. Second operand  has 5 states, 5 states have (on average 1633.0) internal successors, (8165), 5 states have internal predecessors, (8165), 0 states have call successors, (0), 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 20:58:56,430 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:58:56,430 INFO  L93              Difference]: Finished difference Result 47322 states and 78321 transitions.
[2023-12-25 20:58:56,431 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:58:56,432 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1633.0) internal successors, (8165), 5 states have internal predecessors, (8165), 0 states have call successors, (0), 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 20:58:56,437 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:58:56,454 INFO  L225             Difference]: With dead ends: 47322
[2023-12-25 20:58:56,454 INFO  L226             Difference]: Without dead ends: 25139
[2023-12-25 20:58:56,463 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 20:58:56,464 INFO  L413           NwaCegarLoop]: 31915 mSDtfsCounter, 50538 mSDsluCounter, 31762 mSDsCounter, 0 mSdLazyCounter, 16925 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50538 SdHoareTripleChecker+Valid, 63677 SdHoareTripleChecker+Invalid, 18140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 16925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time
[2023-12-25 20:58:56,464 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [50538 Valid, 63677 Invalid, 18140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 16925 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time]
[2023-12-25 20:58:56,480 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25139 states.
[2023-12-25 20:58:56,584 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25139 to 13555.
[2023-12-25 20:58:56,594 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13555 states, 13554 states have (on average 1.6639368452117456) internal successors, (22553), 13554 states have internal predecessors, (22553), 0 states have call successors, (0), 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 20:58:56,606 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13555 states to 13555 states and 22553 transitions.
[2023-12-25 20:58:56,606 INFO  L78                 Accepts]: Start accepts. Automaton has 13555 states and 22553 transitions. Word has length 9020
[2023-12-25 20:58:56,610 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:58:56,610 INFO  L495      AbstractCegarLoop]: Abstraction has 13555 states and 22553 transitions.
[2023-12-25 20:58:56,611 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1633.0) internal successors, (8165), 5 states have internal predecessors, (8165), 0 states have call successors, (0), 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 20:58:56,612 INFO  L276                IsEmpty]: Start isEmpty. Operand 13555 states and 22553 transitions.
[2023-12-25 20:58:57,064 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9022
[2023-12-25 20:58:57,065 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:58:57,066 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 20:58:57,192 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 20:58:57,267 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 20:58:57,267 INFO  L420      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:58:57,268 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:58:57,268 INFO  L85        PathProgramCache]: Analyzing trace with hash 1181827476, now seen corresponding path program 1 times
[2023-12-25 20:58:57,268 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:58:57,268 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542798799]
[2023-12-25 20:58:57,269 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:58:57,269 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:58:57,966 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:58:57,967 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871105711]
[2023-12-25 20:58:57,968 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:58:57,968 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:58:57,968 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:58:57,969 INFO  L229       MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 20:58:57,970 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2023-12-25 20:59:08,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:59:08,669 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45391 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 20:59:08,756 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:59:09,729 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 58 proven. 675 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked.
[2023-12-25 20:59:09,729 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 20:59:09,886 INFO  L134       CoverageAnalysis]: Checked inductivity of 912 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked.
[2023-12-25 20:59:09,886 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:59:09,886 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542798799]
[2023-12-25 20:59:09,886 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:59:09,886 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871105711]
[2023-12-25 20:59:09,886 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [871105711] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 20:59:09,886 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 20:59:09,887 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 20:59:09,887 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374584703]
[2023-12-25 20:59:09,887 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:59:09,891 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:59:09,891 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:59:09,894 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:59:09,894 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 20:59:09,894 INFO  L87              Difference]: Start difference. First operand 13555 states and 22553 transitions. Second operand  has 5 states, 5 states have (on average 1633.6) internal successors, (8168), 5 states have internal predecessors, (8168), 0 states have call successors, (0), 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 20:59:18,192 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 20:59:18,193 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18040 GetRequests, 18032 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 20:59:18,193 INFO  L413           NwaCegarLoop]: 22540 mSDtfsCounter, 33350 mSDsluCounter, 23884 mSDsCounter, 0 mSdLazyCounter, 10754 mSolverCounterSat, 691 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33350 SdHoareTripleChecker+Valid, 46424 SdHoareTripleChecker+Invalid, 11445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 10754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time
[2023-12-25 20:59:18,194 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33350 Valid, 46424 Invalid, 11445 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [691 Valid, 10754 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time]
[2023-12-25 20:59:18,195 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-25 20:59:18,200 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 20:59:18,200 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 20:59:18,343 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0
[2023-12-25 20:59:18,400 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:59:18,402 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (13555states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (31268 states constructed, input type IntersectNwa).
[2023-12-25 20:59:18,405 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, 1]
[2023-12-25 20:59:18,406 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-25 20:59:18,408 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 08:59:18 BoogieIcfgContainer
[2023-12-25 20:59:18,408 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-25 20:59:18,408 INFO  L158              Benchmark]: Toolchain (without parser) took 762171.32ms. Allocated memory was 217.1MB in the beginning and 6.1GB in the end (delta: 5.9GB). Free memory was 145.4MB in the beginning and 2.7GB in the end (delta: -2.5GB). Peak memory consumption was 3.7GB. Max. memory is 8.0GB.
[2023-12-25 20:59:18,408 INFO  L158              Benchmark]: CDTParser took 0.08ms. Allocated memory is still 217.1MB. Free memory is still 164.4MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 20:59:18,408 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1973.05ms. Allocated memory was 217.1MB in the beginning and 522.2MB in the end (delta: 305.1MB). Free memory was 145.0MB in the beginning and 232.6MB in the end (delta: -87.5MB). Peak memory consumption was 269.0MB. Max. memory is 8.0GB.
[2023-12-25 20:59:18,408 INFO  L158              Benchmark]: Boogie Procedure Inliner took 3554.57ms. Allocated memory was 522.2MB in the beginning and 4.9GB in the end (delta: 4.4GB). Free memory was 232.6MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 669.0MB. Max. memory is 8.0GB.
[2023-12-25 20:59:18,409 INFO  L158              Benchmark]: Boogie Preprocessor took 3731.35ms. Allocated memory is still 4.9GB. Free memory was 3.9GB in the beginning and 3.6GB in the end (delta: 326.7MB). Peak memory consumption was 381.2MB. Max. memory is 8.0GB.
[2023-12-25 20:59:18,409 INFO  L158              Benchmark]: RCFGBuilder took 20462.98ms. Allocated memory was 4.9GB in the beginning and 6.1GB in the end (delta: 1.2GB). Free memory was 3.6GB in the beginning and 4.6GB in the end (delta: -978.4MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB.
[2023-12-25 20:59:18,409 INFO  L158              Benchmark]: TraceAbstraction took 732442.77ms. Allocated memory is still 6.1GB. Free memory was 4.6GB in the beginning and 2.7GB in the end (delta: 1.9GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB.
[2023-12-25 20:59:18,410 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 217.1MB. Free memory is still 164.4MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 1973.05ms. Allocated memory was 217.1MB in the beginning and 522.2MB in the end (delta: 305.1MB). Free memory was 145.0MB in the beginning and 232.6MB in the end (delta: -87.5MB). Peak memory consumption was 269.0MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 3554.57ms. Allocated memory was 522.2MB in the beginning and 4.9GB in the end (delta: 4.4GB). Free memory was 232.6MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 669.0MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 3731.35ms. Allocated memory is still 4.9GB. Free memory was 3.9GB in the beginning and 3.6GB in the end (delta: 326.7MB). Peak memory consumption was 381.2MB. Max. memory is 8.0GB.
 * RCFGBuilder took 20462.98ms. Allocated memory was 4.9GB in the beginning and 6.1GB in the end (delta: 1.2GB). Free memory was 3.6GB in the beginning and 4.6GB in the end (delta: -978.4MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB.
 * TraceAbstraction took 732442.77ms. Allocated memory is still 6.1GB. Free memory was 4.6GB in the beginning and 2.7GB in the end (delta: 1.9GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (13555states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (31268 states constructed, input type IntersectNwa).
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 12142 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 732.4s, OverallIterations: 30, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 11.8s, AutomataDifference: 365.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1248344 SdHoareTripleChecker+Valid, 344.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1248344 mSDsluCounter, 2184497 SdHoareTripleChecker+Invalid, 279.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1276233 mSDsCounter, 31072 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 540676 IncrementalHoareTripleChecker+Invalid, 571748 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31072 mSolverCounterUnsat, 908264 mSDtfsCounter, 540676 mSolverCounterSat, 4.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 468440 GetRequests, 468188 SyntacticMatches, 0 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13555occurred in iteration=29, InterpolantAutomatonStates: 173, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.4s AutomataMinimizationTime, 29 MinimizatonAttempts, 336517 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 66.5s SsaConstructionTime, 177.5s SatisfiabilityAnalysisTime, 48.5s InterpolantComputationTime, 239291 NumberOfCodeBlocks, 239291 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 473456 ConstructedInterpolants, 0 QuantifiedInterpolants, 534683 SizeOfPredicates, 106 NumberOfNonLiveVariables, 1179113 ConjunctsInSsa, 446 ConjunctsInUnsatCore, 56 InterpolantComputations, 30 PerfectInterpolantSequences, 29874/47424 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