/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.sokoban.3.prop1-back-serstep.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 22:12:06,540 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 22:12:06,608 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 22:12:06,612 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 22:12:06,612 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 22:12:06,632 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 22:12:06,633 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 22:12:06,633 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 22:12:06,633 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 22:12:06,636 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 22:12:06,636 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 22:12:06,636 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 22:12:06,637 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 22:12:06,638 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 22:12:06,638 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 22:12:06,638 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 22:12:06,638 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 22:12:06,638 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 22:12:06,638 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 22:12:06,639 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 22:12:06,639 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 22:12:06,640 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 22:12:06,640 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 22:12:06,640 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 22:12:06,640 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 22:12:06,641 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 22:12:06,641 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 22:12:06,641 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 22:12:06,641 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 22:12:06,641 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 22:12:06,642 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 22:12:06,642 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 22:12:06,642 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 22:12:06,643 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 22:12:06,643 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 22:12:06,643 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 22:12:06,643 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 22:12:06,643 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 22:12:06,643 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 22:12:06,643 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 22:12:06,643 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 22:12:06,832 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 22:12:06,848 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 22:12:06,850 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 22:12:06,850 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 22:12:06,851 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 22:12:06,852 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.sokoban.3.prop1-back-serstep.c
[2023-12-25 22:12:07,812 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 22:12:08,306 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 22:12:08,306 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.sokoban.3.prop1-back-serstep.c
[2023-12-25 22:12:08,379 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96df2deab/af369a1e75924877b27658c70d8a87b4/FLAGc197ec9c7
[2023-12-25 22:12:08,391 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96df2deab/af369a1e75924877b27658c70d8a87b4
[2023-12-25 22:12:08,393 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 22:12:08,394 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 22:12:08,396 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 22:12:08,396 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 22:12:08,400 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 22:12:08,400 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:12:08" (1/1) ...
[2023-12-25 22:12:08,401 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25692fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:08, skipping insertion in model container
[2023-12-25 22:12:08,401 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:12:08" (1/1) ...
[2023-12-25 22:12:08,632 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 22:12:09,019 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.sokoban.3.prop1-back-serstep.c[1175,1188]
[2023-12-25 22:12:10,580 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 22:12:10,586 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 22:12:10,593 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.sokoban.3.prop1-back-serstep.c[1175,1188]
[2023-12-25 22:12:12,037 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 22:12:12,046 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 22:12:12,047 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12 WrapperNode
[2023-12-25 22:12:12,047 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 22:12:12,047 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 22:12:12,048 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 22:12:12,048 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 22:12:12,052 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:12,663 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:16,619 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72934
[2023-12-25 22:12:16,619 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 22:12:16,620 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 22:12:16,620 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 22:12:16,620 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 22:12:16,627 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:16,628 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:17,878 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:18,621 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 22:12:18,622 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:18,622 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:19,737 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:19,902 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:20,144 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:20,296 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:21,270 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 22:12:21,271 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 22:12:21,271 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 22:12:21,271 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 22:12:21,272 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (1/1) ...
[2023-12-25 22:12:21,285 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 22:12:21,291 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:12:21,321 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 22:12:21,323 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 22:12:21,340 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 22:12:21,340 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 22:12:21,340 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 22:12:21,340 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 22:12:24,787 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 22:12:24,789 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 22:13:27,466 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 22:13:28,791 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 22:13:28,791 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 22:13:28,791 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:13:28 BoogieIcfgContainer
[2023-12-25 22:13:28,792 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 22:13:28,795 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 22:13:28,795 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 22:13:28,797 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 22:13:28,798 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 10:12:08" (1/3) ...
[2023-12-25 22:13:28,798 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ea9e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:13:28, skipping insertion in model container
[2023-12-25 22:13:28,798 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:12:12" (2/3) ...
[2023-12-25 22:13:28,799 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ea9e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:13:28, skipping insertion in model container
[2023-12-25 22:13:28,800 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:13:28" (3/3) ...
[2023-12-25 22:13:28,801 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sokoban.3.prop1-back-serstep.c
[2023-12-25 22:13:28,812 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 22:13:28,812 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 22:13:28,927 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 22:13:28,932 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;@a3daa98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 22:13:28,932 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 22:13:28,957 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 11069 states, 11067 states have (on average 1.6666666666666667) internal successors, (18445), 11068 states have internal predecessors, (18445), 0 states have call successors, (0), 0 states 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 22:13:29,008 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1307
[2023-12-25 22:13:29,009 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:13:29,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:13:29,012 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:13:29,017 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:13:29,018 INFO  L85        PathProgramCache]: Analyzing trace with hash -1871842924, now seen corresponding path program 1 times
[2023-12-25 22:13:29,023 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:13:29,023 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815531908]
[2023-12-25 22:13:29,024 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:13:29,024 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:13:34,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:13:37,901 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 22:13:37,901 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:13:37,902 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815531908]
[2023-12-25 22:13:37,902 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815531908] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:13:37,902 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:13:37,902 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 22:13:37,903 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648083699]
[2023-12-25 22:13:37,904 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:13:37,909 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 22:13:37,910 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:13:37,933 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 22:13:37,934 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 22:13:37,955 INFO  L87              Difference]: Start difference. First operand  has 11069 states, 11067 states have (on average 1.6666666666666667) internal successors, (18445), 11068 states have internal predecessors, (18445), 0 states have call successors, (0), 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 326.5) internal successors, (1306), 4 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 22:13:38,488 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:13:38,488 INFO  L93              Difference]: Finished difference Result 21492 states and 35816 transitions.
[2023-12-25 22:13:38,490 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 22:13:38,500 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 326.5) internal successors, (1306), 4 states have internal predecessors, (1306), 0 states have call successors, (0), 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 1306
[2023-12-25 22:13:38,505 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:13:38,550 INFO  L225             Difference]: With dead ends: 21492
[2023-12-25 22:13:38,550 INFO  L226             Difference]: Without dead ends: 11069
[2023-12-25 22:13:38,569 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 22:13:38,572 INFO  L413           NwaCegarLoop]: 18438 mSDtfsCounter, 1 mSDsluCounter, 36871 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 55309 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 22:13:38,573 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 55309 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 22:13:38,599 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11069 states.
[2023-12-25 22:13:38,792 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11069 to 11069.
[2023-12-25 22:13:38,818 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11069 states, 11068 states have (on average 1.666335381279364) internal successors, (18443), 11068 states have internal predecessors, (18443), 0 states have call successors, (0), 0 states 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 22:13:38,918 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11069 states to 11069 states and 18443 transitions.
[2023-12-25 22:13:38,920 INFO  L78                 Accepts]: Start accepts. Automaton has 11069 states and 18443 transitions. Word has length 1306
[2023-12-25 22:13:38,922 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:13:38,923 INFO  L495      AbstractCegarLoop]: Abstraction has 11069 states and 18443 transitions.
[2023-12-25 22:13:38,923 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 326.5) internal successors, (1306), 4 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 22:13:38,923 INFO  L276                IsEmpty]: Start isEmpty. Operand 11069 states and 18443 transitions.
[2023-12-25 22:13:38,953 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1308
[2023-12-25 22:13:38,954 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:13:38,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:13:38,955 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 22:13:38,955 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:13:38,955 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:13:38,956 INFO  L85        PathProgramCache]: Analyzing trace with hash 2104144260, now seen corresponding path program 1 times
[2023-12-25 22:13:38,956 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:13:38,956 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555581008]
[2023-12-25 22:13:38,956 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:13:38,957 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:13:39,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:13:41,604 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 22:13:41,605 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:13:41,605 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555581008]
[2023-12-25 22:13:41,605 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555581008] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:13:41,605 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:13:41,606 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 22:13:41,606 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605198338]
[2023-12-25 22:13:41,606 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:13:41,609 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 22:13:41,612 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:13:41,613 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 22:13:41,613 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 22:13:41,614 INFO  L87              Difference]: Start difference. First operand 11069 states and 18443 transitions. Second operand  has 4 states, 4 states have (on average 326.75) internal successors, (1307), 4 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states 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 22:13:42,020 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:13:42,021 INFO  L93              Difference]: Finished difference Result 21495 states and 35814 transitions.
[2023-12-25 22:13:42,021 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 22:13:42,022 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 326.75) internal successors, (1307), 4 states have internal predecessors, (1307), 0 states have call successors, (0), 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 1307
[2023-12-25 22:13:42,023 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:13:42,051 INFO  L225             Difference]: With dead ends: 21495
[2023-12-25 22:13:42,051 INFO  L226             Difference]: Without dead ends: 11072
[2023-12-25 22:13:42,063 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 22:13:42,065 INFO  L413           NwaCegarLoop]: 18438 mSDtfsCounter, 1 mSDsluCounter, 36869 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 55307 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 22:13:42,065 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 55307 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 22:13:42,079 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11072 states.
[2023-12-25 22:13:42,196 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11072 to 11071.
[2023-12-25 22:13:42,212 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11071 states, 11070 states have (on average 1.666214995483288) internal successors, (18445), 11070 states have internal predecessors, (18445), 0 states have call successors, (0), 0 states 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 22:13:42,238 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11071 states to 11071 states and 18445 transitions.
[2023-12-25 22:13:42,239 INFO  L78                 Accepts]: Start accepts. Automaton has 11071 states and 18445 transitions. Word has length 1307
[2023-12-25 22:13:42,240 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:13:42,240 INFO  L495      AbstractCegarLoop]: Abstraction has 11071 states and 18445 transitions.
[2023-12-25 22:13:42,241 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 326.75) internal successors, (1307), 4 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states 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 22:13:42,241 INFO  L276                IsEmpty]: Start isEmpty. Operand 11071 states and 18445 transitions.
[2023-12-25 22:13:42,252 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1309
[2023-12-25 22:13:42,252 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:13:42,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:13:42,253 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 22:13:42,253 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:13:42,260 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:13:42,260 INFO  L85        PathProgramCache]: Analyzing trace with hash -1926421968, now seen corresponding path program 1 times
[2023-12-25 22:13:42,260 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:13:42,261 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311802984]
[2023-12-25 22:13:42,261 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:13:42,261 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:13:42,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:13:44,582 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 22:13:44,583 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:13:44,583 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311802984]
[2023-12-25 22:13:44,583 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311802984] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:13:44,584 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:13:44,584 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 22:13:44,584 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041657994]
[2023-12-25 22:13:44,584 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:13:44,585 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 22:13:44,585 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:13:44,586 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 22:13:44,588 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 22:13:44,589 INFO  L87              Difference]: Start difference. First operand 11071 states and 18445 transitions. Second operand  has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states 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 22:13:45,033 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:13:45,033 INFO  L93              Difference]: Finished difference Result 31915 states and 53174 transitions.
[2023-12-25 22:13:45,033 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 22:13:45,034 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 0 states have call successors, (0), 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 1308
[2023-12-25 22:13:45,036 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:13:45,078 INFO  L225             Difference]: With dead ends: 31915
[2023-12-25 22:13:45,079 INFO  L226             Difference]: Without dead ends: 21490
[2023-12-25 22:13:45,097 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 22:13:45,099 INFO  L413           NwaCegarLoop]: 20608 mSDtfsCounter, 17356 mSDsluCounter, 39037 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17356 SdHoareTripleChecker+Valid, 59645 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 22:13:45,099 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17356 Valid, 59645 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 22:13:45,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21490 states.
[2023-12-25 22:13:45,348 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21490 to 11073.
[2023-12-25 22:13:45,364 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11073 states, 11072 states have (on average 1.6660946531791907) internal successors, (18447), 11072 states have internal predecessors, (18447), 0 states have call successors, (0), 0 states 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 22:13:45,378 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11073 states to 11073 states and 18447 transitions.
[2023-12-25 22:13:45,379 INFO  L78                 Accepts]: Start accepts. Automaton has 11073 states and 18447 transitions. Word has length 1308
[2023-12-25 22:13:45,380 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:13:45,380 INFO  L495      AbstractCegarLoop]: Abstraction has 11073 states and 18447 transitions.
[2023-12-25 22:13:45,381 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states 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 22:13:45,382 INFO  L276                IsEmpty]: Start isEmpty. Operand 11073 states and 18447 transitions.
[2023-12-25 22:13:45,399 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1310
[2023-12-25 22:13:45,399 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:13:45,404 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:13:45,404 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 22:13:45,404 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:13:45,404 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:13:45,405 INFO  L85        PathProgramCache]: Analyzing trace with hash 299762412, now seen corresponding path program 1 times
[2023-12-25 22:13:45,405 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:13:45,405 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893341931]
[2023-12-25 22:13:45,405 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:13:45,405 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:13:45,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:13:47,676 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 22:13:47,677 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:13:47,677 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893341931]
[2023-12-25 22:13:47,677 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893341931] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:13:47,677 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:13:47,677 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 22:13:47,677 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659057811]
[2023-12-25 22:13:47,677 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:13:47,678 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:13:47,678 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:13:47,679 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:13:47,679 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 22:13:47,680 INFO  L87              Difference]: Start difference. First operand 11073 states and 18447 transitions. Second operand  has 5 states, 5 states have (on average 261.8) internal successors, (1309), 4 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states 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 22:13:48,169 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:13:48,169 INFO  L93              Difference]: Finished difference Result 33223 states and 55350 transitions.
[2023-12-25 22:13:48,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:13:48,170 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 261.8) internal successors, (1309), 4 states have internal predecessors, (1309), 0 states have call successors, (0), 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 1309
[2023-12-25 22:13:48,172 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:13:48,202 INFO  L225             Difference]: With dead ends: 33223
[2023-12-25 22:13:48,202 INFO  L226             Difference]: Without dead ends: 22796
[2023-12-25 22:13:48,217 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 22:13:48,218 INFO  L413           NwaCegarLoop]: 20607 mSDtfsCounter, 71382 mSDsluCounter, 36870 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71382 SdHoareTripleChecker+Valid, 57477 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 22:13:48,218 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [71382 Valid, 57477 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 22:13:48,238 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22796 states.
[2023-12-25 22:13:48,389 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22796 to 12375.
[2023-12-25 22:13:48,405 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12375 states, 12374 states have (on average 1.6661548407952158) internal successors, (20617), 12374 states have internal predecessors, (20617), 0 states have call successors, (0), 0 states 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 22:13:48,418 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12375 states to 12375 states and 20617 transitions.
[2023-12-25 22:13:48,418 INFO  L78                 Accepts]: Start accepts. Automaton has 12375 states and 20617 transitions. Word has length 1309
[2023-12-25 22:13:48,419 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:13:48,419 INFO  L495      AbstractCegarLoop]: Abstraction has 12375 states and 20617 transitions.
[2023-12-25 22:13:48,420 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 261.8) internal successors, (1309), 4 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states 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 22:13:48,420 INFO  L276                IsEmpty]: Start isEmpty. Operand 12375 states and 20617 transitions.
[2023-12-25 22:13:48,785 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8257
[2023-12-25 22:13:48,785 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:13:48,789 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 22:13:48,789 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-25 22:13:48,789 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:13:48,789 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:13:48,791 INFO  L85        PathProgramCache]: Analyzing trace with hash 1405251420, now seen corresponding path program 1 times
[2023-12-25 22:13:48,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:13:48,791 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273095313]
[2023-12-25 22:13:48,791 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:13:48,792 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:13:50,121 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:13:50,121 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61342532]
[2023-12-25 22:13:50,123 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:13:50,123 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:13:50,123 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:13:50,125 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 22:13:50,147 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 22:14:15,158 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:14:15,776 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84966 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:14:16,026 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:14:17,679 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 8 proven. 491 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked.
[2023-12-25 22:14:17,680 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:14:17,927 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked.
[2023-12-25 22:14:17,928 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:14:17,928 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273095313]
[2023-12-25 22:14:17,928 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:14:17,928 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61342532]
[2023-12-25 22:14:17,928 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [61342532] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:14:17,928 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:14:17,929 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:14:17,930 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442241336]
[2023-12-25 22:14:17,930 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:14:17,936 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:14:17,936 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:14:17,940 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:14:17,940 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:14:17,942 INFO  L87              Difference]: Start difference. First operand 12375 states and 20617 transitions. Second operand  has 5 states, 5 states have (on average 1478.2) internal successors, (7391), 5 states have internal predecessors, (7391), 0 states have call successors, (0), 0 states 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 22:14:30,217 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:14:30,218 INFO  L93              Difference]: Finished difference Result 42790 states and 71005 transitions.
[2023-12-25 22:14:30,218 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:14:30,220 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1478.2) internal successors, (7391), 5 states have internal predecessors, (7391), 0 states have call successors, (0), 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 8256
[2023-12-25 22:14:30,228 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:14:30,254 INFO  L225             Difference]: With dead ends: 42790
[2023-12-25 22:14:30,254 INFO  L226             Difference]: Without dead ends: 22795
[2023-12-25 22:14:30,267 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16511 GetRequests, 16502 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 22:14:30,268 INFO  L413           NwaCegarLoop]: 31115 mSDtfsCounter, 46932 mSDsluCounter, 32121 mSDsCounter, 0 mSdLazyCounter, 11209 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46932 SdHoareTripleChecker+Valid, 63236 SdHoareTripleChecker+Invalid, 12064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 11209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time
[2023-12-25 22:14:30,268 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46932 Valid, 63236 Invalid, 12064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 11209 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time]
[2023-12-25 22:14:30,284 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22795 states.
[2023-12-25 22:14:30,439 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22795 to 12377.
[2023-12-25 22:14:30,451 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12377 states, 12376 states have (on average 1.6660471881060117) internal successors, (20619), 12376 states have internal predecessors, (20619), 0 states have call successors, (0), 0 states 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 22:14:30,463 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12377 states to 12377 states and 20619 transitions.
[2023-12-25 22:14:30,463 INFO  L78                 Accepts]: Start accepts. Automaton has 12377 states and 20619 transitions. Word has length 8256
[2023-12-25 22:14:30,470 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:14:30,470 INFO  L495      AbstractCegarLoop]: Abstraction has 12377 states and 20619 transitions.
[2023-12-25 22:14:30,471 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1478.2) internal successors, (7391), 5 states have internal predecessors, (7391), 0 states have call successors, (0), 0 states 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 22:14:30,472 INFO  L276                IsEmpty]: Start isEmpty. Operand 12377 states and 20619 transitions.
[2023-12-25 22:14:30,849 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8258
[2023-12-25 22:14:30,849 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:14:30,855 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]
[2023-12-25 22:14:31,056 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forcibly destroying the process
[2023-12-25 22:14:31,113 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 137
[2023-12-25 22:14:31,114 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 22:14:31,114 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:14:31,114 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:14:31,116 INFO  L85        PathProgramCache]: Analyzing trace with hash 414325722, now seen corresponding path program 1 times
[2023-12-25 22:14:31,116 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:14:31,117 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684873297]
[2023-12-25 22:14:31,117 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:14:31,117 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:14:32,352 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:14:32,352 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726475143]
[2023-12-25 22:14:32,354 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:14:32,354 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:14:32,354 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:14:32,355 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 22:14:32,357 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 22:14:56,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:14:57,522 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84969 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:14:57,714 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:14:59,243 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 10 proven. 491 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked.
[2023-12-25 22:14:59,243 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:14:59,377 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked.
[2023-12-25 22:14:59,378 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:14:59,378 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684873297]
[2023-12-25 22:14:59,378 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:14:59,378 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726475143]
[2023-12-25 22:14:59,378 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [726475143] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:14:59,378 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:14:59,379 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:14:59,379 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894343811]
[2023-12-25 22:14:59,379 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:14:59,385 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:14:59,385 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:14:59,388 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:14:59,389 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:14:59,389 INFO  L87              Difference]: Start difference. First operand 12377 states and 20619 transitions. Second operand  has 5 states, 5 states have (on average 1478.8) internal successors, (7394), 5 states have internal predecessors, (7394), 0 states have call successors, (0), 0 states 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 22:15:11,346 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:15:11,346 INFO  L93              Difference]: Finished difference Result 42798 states and 71013 transitions.
[2023-12-25 22:15:11,346 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:15:11,348 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1478.8) internal successors, (7394), 5 states have internal predecessors, (7394), 0 states have call successors, (0), 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 8257
[2023-12-25 22:15:11,357 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:15:11,385 INFO  L225             Difference]: With dead ends: 42798
[2023-12-25 22:15:11,385 INFO  L226             Difference]: Without dead ends: 22796
[2023-12-25 22:15:11,399 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16513 GetRequests, 16504 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 22:15:11,400 INFO  L413           NwaCegarLoop]: 31107 mSDtfsCounter, 46924 mSDsluCounter, 32116 mSDsCounter, 0 mSdLazyCounter, 11209 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46924 SdHoareTripleChecker+Valid, 63223 SdHoareTripleChecker+Invalid, 12064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 11209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time
[2023-12-25 22:15:11,400 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46924 Valid, 63223 Invalid, 12064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 11209 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time]
[2023-12-25 22:15:11,420 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22796 states.
[2023-12-25 22:15:11,584 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22796 to 12379.
[2023-12-25 22:15:11,598 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12379 states, 12378 states have (on average 1.6659395702052027) internal successors, (20621), 12378 states have internal predecessors, (20621), 0 states have call successors, (0), 0 states 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 22:15:11,611 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12379 states to 12379 states and 20621 transitions.
[2023-12-25 22:15:11,611 INFO  L78                 Accepts]: Start accepts. Automaton has 12379 states and 20621 transitions. Word has length 8257
[2023-12-25 22:15:11,619 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:15:11,619 INFO  L495      AbstractCegarLoop]: Abstraction has 12379 states and 20621 transitions.
[2023-12-25 22:15:11,620 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1478.8) internal successors, (7394), 5 states have internal predecessors, (7394), 0 states have call successors, (0), 0 states 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 22:15:11,620 INFO  L276                IsEmpty]: Start isEmpty. Operand 12379 states and 20621 transitions.
[2023-12-25 22:15:12,025 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8259
[2023-12-25 22:15:12,025 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:15:12,030 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 22:15:12,244 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forcibly destroying the process
[2023-12-25 22:15:12,315 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 137
[2023-12-25 22:15:12,315 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 22:15:12,316 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:15:12,316 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:15:12,318 INFO  L85        PathProgramCache]: Analyzing trace with hash -500809662, now seen corresponding path program 1 times
[2023-12-25 22:15:12,318 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:15:12,318 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767827400]
[2023-12-25 22:15:12,319 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:15:12,319 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:15:13,662 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:15:13,662 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450551173]
[2023-12-25 22:15:13,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:15:13,664 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:15:13,664 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:15:13,665 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 22:15:13,667 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 22:15:38,211 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:15:38,861 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84972 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:15:39,046 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:15:40,434 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 12 proven. 491 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2023-12-25 22:15:40,434 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:15:40,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked.
[2023-12-25 22:15:40,575 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:15:40,575 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767827400]
[2023-12-25 22:15:40,575 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:15:40,575 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450551173]
[2023-12-25 22:15:40,575 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450551173] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:15:40,575 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:15:40,576 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:15:40,576 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853669479]
[2023-12-25 22:15:40,577 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:15:40,582 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:15:40,582 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:15:40,586 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:15:40,586 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:15:40,587 INFO  L87              Difference]: Start difference. First operand 12379 states and 20621 transitions. Second operand  has 5 states, 5 states have (on average 1479.4) internal successors, (7397), 5 states have internal predecessors, (7397), 0 states have call successors, (0), 0 states 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 22:15:54,350 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:15:54,351 INFO  L93              Difference]: Finished difference Result 42806 states and 71021 transitions.
[2023-12-25 22:15:54,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:15:54,352 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1479.4) internal successors, (7397), 5 states have internal predecessors, (7397), 0 states have call successors, (0), 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 8258
[2023-12-25 22:15:54,362 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:15:54,391 INFO  L225             Difference]: With dead ends: 42806
[2023-12-25 22:15:54,391 INFO  L226             Difference]: Without dead ends: 22797
[2023-12-25 22:15:54,404 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16515 GetRequests, 16506 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 22:15:54,405 INFO  L413           NwaCegarLoop]: 31099 mSDtfsCounter, 32134 mSDsluCounter, 46035 mSDsCounter, 0 mSdLazyCounter, 14633 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32134 SdHoareTripleChecker+Valid, 77134 SdHoareTripleChecker+Invalid, 15488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 14633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time
[2023-12-25 22:15:54,405 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32134 Valid, 77134 Invalid, 15488 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 14633 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time]
[2023-12-25 22:15:54,422 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22797 states.
[2023-12-25 22:15:54,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22797 to 12381.
[2023-12-25 22:15:54,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12381 states, 12380 states have (on average 1.6658319870759288) internal successors, (20623), 12380 states have internal predecessors, (20623), 0 states have call successors, (0), 0 states 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 22:15:54,624 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12381 states to 12381 states and 20623 transitions.
[2023-12-25 22:15:54,624 INFO  L78                 Accepts]: Start accepts. Automaton has 12381 states and 20623 transitions. Word has length 8258
[2023-12-25 22:15:54,628 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:15:54,628 INFO  L495      AbstractCegarLoop]: Abstraction has 12381 states and 20623 transitions.
[2023-12-25 22:15:54,629 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1479.4) internal successors, (7397), 5 states have internal predecessors, (7397), 0 states have call successors, (0), 0 states 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 22:15:54,629 INFO  L276                IsEmpty]: Start isEmpty. Operand 12381 states and 20623 transitions.
[2023-12-25 22:15:54,990 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8260
[2023-12-25 22:15:54,990 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:15:54,994 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 22:15:55,211 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process
[2023-12-25 22:15:55,274 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137
[2023-12-25 22:15:55,275 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 22:15:55,275 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:15:55,275 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:15:55,277 INFO  L85        PathProgramCache]: Analyzing trace with hash 284873078, now seen corresponding path program 1 times
[2023-12-25 22:15:55,277 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:15:55,277 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043477405]
[2023-12-25 22:15:55,278 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:15:55,278 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:15:56,521 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:15:56,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25748744]
[2023-12-25 22:15:56,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:15:56,523 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:15:56,523 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:15:56,524 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 22:15:56,526 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 22:16:21,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:16:21,913 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84976 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:16:22,118 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:16:23,693 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 14 proven. 491 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked.
[2023-12-25 22:16:23,694 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:16:23,827 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked.
[2023-12-25 22:16:23,827 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:16:23,827 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043477405]
[2023-12-25 22:16:23,827 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:16:23,827 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25748744]
[2023-12-25 22:16:23,827 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [25748744] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:16:23,828 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:16:23,829 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:16:23,829 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829621446]
[2023-12-25 22:16:23,829 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:16:23,834 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:16:23,834 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:16:23,838 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:16:23,838 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:16:23,839 INFO  L87              Difference]: Start difference. First operand 12381 states and 20623 transitions. Second operand  has 5 states, 5 states have (on average 1480.0) internal successors, (7400), 5 states have internal predecessors, (7400), 0 states have call successors, (0), 0 states 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 22:16:38,899 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:16:38,900 INFO  L93              Difference]: Finished difference Result 42814 states and 71029 transitions.
[2023-12-25 22:16:38,900 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:16:38,901 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1480.0) internal successors, (7400), 5 states have internal predecessors, (7400), 0 states have call successors, (0), 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 8259
[2023-12-25 22:16:38,907 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:16:38,935 INFO  L225             Difference]: With dead ends: 42814
[2023-12-25 22:16:38,936 INFO  L226             Difference]: Without dead ends: 22798
[2023-12-25 22:16:38,949 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16517 GetRequests, 16508 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 22:16:38,950 INFO  L413           NwaCegarLoop]: 31091 mSDtfsCounter, 32124 mSDsluCounter, 49217 mSDsCounter, 0 mSdLazyCounter, 14689 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32124 SdHoareTripleChecker+Valid, 80308 SdHoareTripleChecker+Invalid, 15544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 14689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time
[2023-12-25 22:16:38,950 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32124 Valid, 80308 Invalid, 15544 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [855 Valid, 14689 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time]
[2023-12-25 22:16:38,971 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22798 states.
[2023-12-25 22:16:39,103 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22798 to 12383.
[2023-12-25 22:16:39,116 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12383 states, 12382 states have (on average 1.6657244387013406) internal successors, (20625), 12382 states have internal predecessors, (20625), 0 states have call successors, (0), 0 states 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 22:16:39,131 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12383 states to 12383 states and 20625 transitions.
[2023-12-25 22:16:39,131 INFO  L78                 Accepts]: Start accepts. Automaton has 12383 states and 20625 transitions. Word has length 8259
[2023-12-25 22:16:39,135 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:16:39,135 INFO  L495      AbstractCegarLoop]: Abstraction has 12383 states and 20625 transitions.
[2023-12-25 22:16:39,136 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1480.0) internal successors, (7400), 5 states have internal predecessors, (7400), 0 states have call successors, (0), 0 states 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 22:16:39,136 INFO  L276                IsEmpty]: Start isEmpty. Operand 12383 states and 20625 transitions.
[2023-12-25 22:16:39,530 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8261
[2023-12-25 22:16:39,530 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:16:39,536 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 22:16:39,752 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process
[2023-12-25 22:16:39,811 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 137
[2023-12-25 22:16:39,812 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 22:16:39,812 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:16:39,812 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:16:39,814 INFO  L85        PathProgramCache]: Analyzing trace with hash -1566898518, now seen corresponding path program 1 times
[2023-12-25 22:16:39,814 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:16:39,814 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274865549]
[2023-12-25 22:16:39,815 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:16:39,815 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:16:41,146 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:16:41,147 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558056385]
[2023-12-25 22:16:41,148 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:16:41,148 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:16:41,148 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:16:41,149 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 22:16:41,151 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 22:17:05,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:17:06,366 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84979 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:17:06,656 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:17:08,132 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 16 proven. 491 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked.
[2023-12-25 22:17:08,132 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:17:08,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked.
[2023-12-25 22:17:08,338 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:17:08,338 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274865549]
[2023-12-25 22:17:08,338 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:17:08,338 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558056385]
[2023-12-25 22:17:08,338 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558056385] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:17:08,338 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:17:08,339 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:17:08,339 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696984152]
[2023-12-25 22:17:08,339 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:17:08,345 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:17:08,345 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:17:08,349 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:17:08,349 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:17:08,350 INFO  L87              Difference]: Start difference. First operand 12383 states and 20625 transitions. Second operand  has 5 states, 5 states have (on average 1480.6) internal successors, (7403), 5 states have internal predecessors, (7403), 0 states have call successors, (0), 0 states 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 22:17:20,682 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:17:20,682 INFO  L93              Difference]: Finished difference Result 42822 states and 71037 transitions.
[2023-12-25 22:17:20,683 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:17:20,684 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1480.6) internal successors, (7403), 5 states have internal predecessors, (7403), 0 states have call successors, (0), 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 8260
[2023-12-25 22:17:20,689 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:17:20,708 INFO  L225             Difference]: With dead ends: 42822
[2023-12-25 22:17:20,708 INFO  L226             Difference]: Without dead ends: 22799
[2023-12-25 22:17:20,721 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16519 GetRequests, 16510 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 22:17:20,724 INFO  L413           NwaCegarLoop]: 31083 mSDtfsCounter, 46900 mSDsluCounter, 32101 mSDsCounter, 0 mSdLazyCounter, 11209 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46900 SdHoareTripleChecker+Valid, 63184 SdHoareTripleChecker+Invalid, 12064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 11209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time
[2023-12-25 22:17:20,724 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46900 Valid, 63184 Invalid, 12064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 11209 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time]
[2023-12-25 22:17:20,742 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22799 states.
[2023-12-25 22:17:20,868 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22799 to 12385.
[2023-12-25 22:17:20,881 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12385 states, 12384 states have (on average 1.6656169250645996) internal successors, (20627), 12384 states have internal predecessors, (20627), 0 states have call successors, (0), 0 states 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 22:17:20,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12385 states to 12385 states and 20627 transitions.
[2023-12-25 22:17:20,895 INFO  L78                 Accepts]: Start accepts. Automaton has 12385 states and 20627 transitions. Word has length 8260
[2023-12-25 22:17:20,899 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:17:20,899 INFO  L495      AbstractCegarLoop]: Abstraction has 12385 states and 20627 transitions.
[2023-12-25 22:17:20,900 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1480.6) internal successors, (7403), 5 states have internal predecessors, (7403), 0 states have call successors, (0), 0 states 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 22:17:20,900 INFO  L276                IsEmpty]: Start isEmpty. Operand 12385 states and 20627 transitions.
[2023-12-25 22:17:21,299 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8262
[2023-12-25 22:17:21,299 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:17:21,304 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 22:17:21,520 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process
[2023-12-25 22:17:21,584 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137
[2023-12-25 22:17:21,584 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 22:17:21,584 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:17:21,585 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:17:21,587 INFO  L85        PathProgramCache]: Analyzing trace with hash -655154800, now seen corresponding path program 1 times
[2023-12-25 22:17:21,587 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:17:21,587 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231302010]
[2023-12-25 22:17:21,588 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:17:21,588 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:17:22,851 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:17:22,851 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956474745]
[2023-12-25 22:17:22,853 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:17:22,853 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:17:22,853 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:17:22,854 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 22:17:22,856 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 22:17:47,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:17:48,067 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84982 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:17:48,332 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:17:49,814 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 18 proven. 491 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked.
[2023-12-25 22:17:49,814 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:17:50,017 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked.
[2023-12-25 22:17:50,017 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:17:50,017 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231302010]
[2023-12-25 22:17:50,017 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:17:50,017 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956474745]
[2023-12-25 22:17:50,017 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [956474745] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:17:50,017 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:17:50,019 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:17:50,019 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084040758]
[2023-12-25 22:17:50,019 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:17:50,024 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:17:50,024 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:17:50,028 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:17:50,028 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:17:50,029 INFO  L87              Difference]: Start difference. First operand 12385 states and 20627 transitions. Second operand  has 5 states, 5 states have (on average 1481.2) internal successors, (7406), 5 states have internal predecessors, (7406), 0 states have call successors, (0), 0 states 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 22:18:04,524 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:18:04,524 INFO  L93              Difference]: Finished difference Result 42830 states and 71045 transitions.
[2023-12-25 22:18:04,525 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:18:04,526 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1481.2) internal successors, (7406), 5 states have internal predecessors, (7406), 0 states have call successors, (0), 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 8261
[2023-12-25 22:18:04,531 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:18:04,548 INFO  L225             Difference]: With dead ends: 42830
[2023-12-25 22:18:04,548 INFO  L226             Difference]: Without dead ends: 22800
[2023-12-25 22:18:04,559 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16521 GetRequests, 16512 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 22:18:04,559 INFO  L413           NwaCegarLoop]: 31075 mSDtfsCounter, 32119 mSDsluCounter, 46011 mSDsCounter, 0 mSdLazyCounter, 14633 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32119 SdHoareTripleChecker+Valid, 77086 SdHoareTripleChecker+Invalid, 15488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 14633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time
[2023-12-25 22:18:04,559 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32119 Valid, 77086 Invalid, 15488 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [855 Valid, 14633 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time]
[2023-12-25 22:18:04,578 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22800 states.
[2023-12-25 22:18:04,700 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22800 to 12387.
[2023-12-25 22:18:04,713 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12387 states, 12386 states have (on average 1.6655094461488777) internal successors, (20629), 12386 states have internal predecessors, (20629), 0 states have call successors, (0), 0 states 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 22:18:04,726 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12387 states to 12387 states and 20629 transitions.
[2023-12-25 22:18:04,726 INFO  L78                 Accepts]: Start accepts. Automaton has 12387 states and 20629 transitions. Word has length 8261
[2023-12-25 22:18:04,730 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:18:04,730 INFO  L495      AbstractCegarLoop]: Abstraction has 12387 states and 20629 transitions.
[2023-12-25 22:18:04,731 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1481.2) internal successors, (7406), 5 states have internal predecessors, (7406), 0 states have call successors, (0), 0 states 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 22:18:04,731 INFO  L276                IsEmpty]: Start isEmpty. Operand 12387 states and 20629 transitions.
[2023-12-25 22:18:05,107 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8263
[2023-12-25 22:18:05,108 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:18:05,110 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]
[2023-12-25 22:18:05,311 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process
[2023-12-25 22:18:05,391 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 137
[2023-12-25 22:18:05,391 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 22:18:05,391 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:18:05,392 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:18:05,394 INFO  L85        PathProgramCache]: Analyzing trace with hash -718922864, now seen corresponding path program 1 times
[2023-12-25 22:18:05,394 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:18:05,394 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420078323]
[2023-12-25 22:18:05,395 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:18:05,395 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:18:06,654 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:18:06,654 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [888523065]
[2023-12-25 22:18:06,656 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:18:06,656 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:18:06,656 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:18:06,657 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 22:18:06,657 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 22:18:32,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:18:32,785 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84985 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:18:32,945 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:18:34,283 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 20 proven. 491 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked.
[2023-12-25 22:18:34,283 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:18:34,487 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked.
[2023-12-25 22:18:34,488 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:18:34,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420078323]
[2023-12-25 22:18:34,488 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:18:34,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888523065]
[2023-12-25 22:18:34,488 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [888523065] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:18:34,488 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:18:34,489 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:18:34,489 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018861120]
[2023-12-25 22:18:34,489 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:18:34,495 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:18:34,495 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:18:34,499 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:18:34,499 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:18:34,500 INFO  L87              Difference]: Start difference. First operand 12387 states and 20629 transitions. Second operand  has 5 states, 5 states have (on average 1481.8) internal successors, (7409), 5 states have internal predecessors, (7409), 0 states have call successors, (0), 0 states 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 22:18:48,546 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:18:48,546 INFO  L93              Difference]: Finished difference Result 42838 states and 71053 transitions.
[2023-12-25 22:18:48,546 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:18:48,548 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1481.8) internal successors, (7409), 5 states have internal predecessors, (7409), 0 states have call successors, (0), 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 8262
[2023-12-25 22:18:48,553 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:18:48,569 INFO  L225             Difference]: With dead ends: 42838
[2023-12-25 22:18:48,569 INFO  L226             Difference]: Without dead ends: 22801
[2023-12-25 22:18:48,580 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16523 GetRequests, 16514 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 22:18:48,580 INFO  L413           NwaCegarLoop]: 31067 mSDtfsCounter, 32114 mSDsluCounter, 46003 mSDsCounter, 0 mSdLazyCounter, 14633 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32114 SdHoareTripleChecker+Valid, 77070 SdHoareTripleChecker+Invalid, 15488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 14633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time
[2023-12-25 22:18:48,580 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32114 Valid, 77070 Invalid, 15488 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 14633 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time]
[2023-12-25 22:18:48,599 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22801 states.
[2023-12-25 22:18:48,714 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22801 to 12389.
[2023-12-25 22:18:48,727 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12389 states, 12388 states have (on average 1.6654020019373588) internal successors, (20631), 12388 states have internal predecessors, (20631), 0 states have call successors, (0), 0 states 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 22:18:48,741 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12389 states to 12389 states and 20631 transitions.
[2023-12-25 22:18:48,741 INFO  L78                 Accepts]: Start accepts. Automaton has 12389 states and 20631 transitions. Word has length 8262
[2023-12-25 22:18:48,745 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:18:48,745 INFO  L495      AbstractCegarLoop]: Abstraction has 12389 states and 20631 transitions.
[2023-12-25 22:18:48,746 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1481.8) internal successors, (7409), 5 states have internal predecessors, (7409), 0 states have call successors, (0), 0 states 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 22:18:48,747 INFO  L276                IsEmpty]: Start isEmpty. Operand 12389 states and 20631 transitions.
[2023-12-25 22:18:49,126 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8264
[2023-12-25 22:18:49,126 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:18:49,128 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 22:18:49,340 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process
[2023-12-25 22:18:49,414 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137
[2023-12-25 22:18:49,414 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 22:18:49,414 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:18:49,415 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:18:49,416 INFO  L85        PathProgramCache]: Analyzing trace with hash 1945272364, now seen corresponding path program 1 times
[2023-12-25 22:18:49,416 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:18:49,416 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469403924]
[2023-12-25 22:18:49,417 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:18:49,417 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:18:50,699 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:18:50,700 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137511963]
[2023-12-25 22:18:50,701 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:18:50,701 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:18:50,701 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:18:50,702 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 22:18:50,703 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 22:19:14,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:19:15,503 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84989 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:19:15,673 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:19:17,317 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 22 proven. 491 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked.
[2023-12-25 22:19:17,318 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:19:17,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked.
[2023-12-25 22:19:17,468 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:19:17,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469403924]
[2023-12-25 22:19:17,468 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:19:17,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137511963]
[2023-12-25 22:19:17,468 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [137511963] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:19:17,468 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:19:17,470 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:19:17,470 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115410075]
[2023-12-25 22:19:17,470 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:19:17,475 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:19:17,475 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:19:17,479 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:19:17,479 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:19:17,481 INFO  L87              Difference]: Start difference. First operand 12389 states and 20631 transitions. Second operand  has 5 states, 5 states have (on average 1482.4) internal successors, (7412), 5 states have internal predecessors, (7412), 0 states have call successors, (0), 0 states 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 22:19:30,357 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:19:30,357 INFO  L93              Difference]: Finished difference Result 42846 states and 71061 transitions.
[2023-12-25 22:19:30,357 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:19:30,359 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1482.4) internal successors, (7412), 5 states have internal predecessors, (7412), 0 states have call successors, (0), 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 8263
[2023-12-25 22:19:30,364 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:19:30,382 INFO  L225             Difference]: With dead ends: 42846
[2023-12-25 22:19:30,382 INFO  L226             Difference]: Without dead ends: 22802
[2023-12-25 22:19:30,392 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16525 GetRequests, 16516 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 22:19:30,393 INFO  L413           NwaCegarLoop]: 31059 mSDtfsCounter, 46876 mSDsluCounter, 32086 mSDsCounter, 0 mSdLazyCounter, 11209 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46876 SdHoareTripleChecker+Valid, 63145 SdHoareTripleChecker+Invalid, 12064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 11209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time
[2023-12-25 22:19:30,393 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46876 Valid, 63145 Invalid, 12064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 11209 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time]
[2023-12-25 22:19:30,412 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22802 states.
[2023-12-25 22:19:30,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22802 to 12391.
[2023-12-25 22:19:30,614 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12391 states, 12390 states have (on average 1.6652945924132365) internal successors, (20633), 12390 states have internal predecessors, (20633), 0 states have call successors, (0), 0 states 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 22:19:30,628 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12391 states to 12391 states and 20633 transitions.
[2023-12-25 22:19:30,629 INFO  L78                 Accepts]: Start accepts. Automaton has 12391 states and 20633 transitions. Word has length 8263
[2023-12-25 22:19:30,632 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:19:30,632 INFO  L495      AbstractCegarLoop]: Abstraction has 12391 states and 20633 transitions.
[2023-12-25 22:19:30,633 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1482.4) internal successors, (7412), 5 states have internal predecessors, (7412), 0 states have call successors, (0), 0 states 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 22:19:30,633 INFO  L276                IsEmpty]: Start isEmpty. Operand 12391 states and 20633 transitions.
[2023-12-25 22:19:31,038 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8265
[2023-12-25 22:19:31,038 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:19:31,040 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 22:19:31,241 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forcibly destroying the process
[2023-12-25 22:19:31,300 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 137
[2023-12-25 22:19:31,300 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 22:19:31,300 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:19:31,301 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:19:31,302 INFO  L85        PathProgramCache]: Analyzing trace with hash 1499247352, now seen corresponding path program 1 times
[2023-12-25 22:19:31,303 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:19:31,303 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23959953]
[2023-12-25 22:19:31,304 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:19:31,304 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:19:32,605 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:19:32,606 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1604633086]
[2023-12-25 22:19:32,607 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:19:32,607 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:19:32,607 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:19:32,608 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 22:19:32,609 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 22:19:57,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:19:58,393 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84992 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:19:58,557 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:19:59,967 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 24 proven. 491 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked.
[2023-12-25 22:19:59,967 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:20:00,184 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 850 trivial. 0 not checked.
[2023-12-25 22:20:00,185 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:20:00,185 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23959953]
[2023-12-25 22:20:00,185 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:20:00,185 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604633086]
[2023-12-25 22:20:00,185 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604633086] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:20:00,185 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:20:00,186 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:20:00,186 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118206439]
[2023-12-25 22:20:00,187 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:20:00,191 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:20:00,191 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:20:00,195 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:20:00,195 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:20:00,196 INFO  L87              Difference]: Start difference. First operand 12391 states and 20633 transitions. Second operand  has 5 states, 5 states have (on average 1483.0) internal successors, (7415), 5 states have internal predecessors, (7415), 0 states have call successors, (0), 0 states 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 22:20:12,979 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:20:12,980 INFO  L93              Difference]: Finished difference Result 42854 states and 71069 transitions.
[2023-12-25 22:20:12,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:20:12,982 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1483.0) internal successors, (7415), 5 states have internal predecessors, (7415), 0 states have call successors, (0), 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 8264
[2023-12-25 22:20:12,987 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:20:13,006 INFO  L225             Difference]: With dead ends: 42854
[2023-12-25 22:20:13,006 INFO  L226             Difference]: Without dead ends: 22803
[2023-12-25 22:20:13,017 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16527 GetRequests, 16518 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 22:20:13,017 INFO  L413           NwaCegarLoop]: 31051 mSDtfsCounter, 46868 mSDsluCounter, 32081 mSDsCounter, 0 mSdLazyCounter, 11209 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46868 SdHoareTripleChecker+Valid, 63132 SdHoareTripleChecker+Invalid, 12064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 11209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time
[2023-12-25 22:20:13,017 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46868 Valid, 63132 Invalid, 12064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 11209 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time]
[2023-12-25 22:20:13,035 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22803 states.
[2023-12-25 22:20:13,142 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22803 to 12393.
[2023-12-25 22:20:13,153 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12393 states, 12392 states have (on average 1.665187217559716) internal successors, (20635), 12392 states have internal predecessors, (20635), 0 states have call successors, (0), 0 states 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 22:20:13,166 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12393 states to 12393 states and 20635 transitions.
[2023-12-25 22:20:13,166 INFO  L78                 Accepts]: Start accepts. Automaton has 12393 states and 20635 transitions. Word has length 8264
[2023-12-25 22:20:13,170 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:20:13,170 INFO  L495      AbstractCegarLoop]: Abstraction has 12393 states and 20635 transitions.
[2023-12-25 22:20:13,171 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1483.0) internal successors, (7415), 5 states have internal predecessors, (7415), 0 states have call successors, (0), 0 states 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 22:20:13,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 12393 states and 20635 transitions.
[2023-12-25 22:20:13,555 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8266
[2023-12-25 22:20:13,555 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:20:13,557 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 22:20:13,757 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forcibly destroying the process
[2023-12-25 22:20:13,828 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 137
[2023-12-25 22:20:13,828 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 22:20:13,828 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:20:13,829 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:20:13,830 INFO  L85        PathProgramCache]: Analyzing trace with hash 1304882246, now seen corresponding path program 1 times
[2023-12-25 22:20:13,830 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:20:13,830 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365041132]
[2023-12-25 22:20:13,830 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:20:13,830 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:20:15,119 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:20:15,119 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951505409]
[2023-12-25 22:20:15,121 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:20:15,121 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:20:15,121 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:20:15,122 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 22:20:15,124 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 22:20:40,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:20:41,197 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84995 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:20:41,425 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:20:42,732 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 26 proven. 491 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked.
[2023-12-25 22:20:42,733 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:20:42,956 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked.
[2023-12-25 22:20:42,956 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:20:42,956 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365041132]
[2023-12-25 22:20:42,956 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:20:42,956 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951505409]
[2023-12-25 22:20:42,957 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951505409] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:20:42,957 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:20:42,958 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:20:42,958 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243276873]
[2023-12-25 22:20:42,958 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:20:42,962 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:20:42,962 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:20:42,966 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:20:42,966 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:20:42,966 INFO  L87              Difference]: Start difference. First operand 12393 states and 20635 transitions. Second operand  has 5 states, 5 states have (on average 1483.6) internal successors, (7418), 5 states have internal predecessors, (7418), 0 states have call successors, (0), 0 states 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 22:20:55,396 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:20:55,397 INFO  L93              Difference]: Finished difference Result 42862 states and 71077 transitions.
[2023-12-25 22:20:55,397 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:20:55,398 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1483.6) internal successors, (7418), 5 states have internal predecessors, (7418), 0 states have call successors, (0), 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 8265
[2023-12-25 22:20:55,403 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:20:55,419 INFO  L225             Difference]: With dead ends: 42862
[2023-12-25 22:20:55,419 INFO  L226             Difference]: Without dead ends: 22804
[2023-12-25 22:20:55,427 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16529 GetRequests, 16520 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 22:20:55,428 INFO  L413           NwaCegarLoop]: 31043 mSDtfsCounter, 46860 mSDsluCounter, 32076 mSDsCounter, 0 mSdLazyCounter, 11209 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46860 SdHoareTripleChecker+Valid, 63119 SdHoareTripleChecker+Invalid, 12064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 11209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time
[2023-12-25 22:20:55,428 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46860 Valid, 63119 Invalid, 12064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 11209 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time]
[2023-12-25 22:20:55,442 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22804 states.
[2023-12-25 22:20:55,540 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22804 to 12395.
[2023-12-25 22:20:55,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12395 states, 12394 states have (on average 1.6650798773600128) internal successors, (20637), 12394 states have internal predecessors, (20637), 0 states have call successors, (0), 0 states 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 22:20:55,562 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12395 states to 12395 states and 20637 transitions.
[2023-12-25 22:20:55,563 INFO  L78                 Accepts]: Start accepts. Automaton has 12395 states and 20637 transitions. Word has length 8265
[2023-12-25 22:20:55,566 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:20:55,567 INFO  L495      AbstractCegarLoop]: Abstraction has 12395 states and 20637 transitions.
[2023-12-25 22:20:55,567 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1483.6) internal successors, (7418), 5 states have internal predecessors, (7418), 0 states have call successors, (0), 0 states 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 22:20:55,568 INFO  L276                IsEmpty]: Start isEmpty. Operand 12395 states and 20637 transitions.
[2023-12-25 22:20:55,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8267
[2023-12-25 22:20:55,942 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:20:55,943 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:20:56,144 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forcibly destroying the process
[2023-12-25 22:20:56,216 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 137
[2023-12-25 22:20:56,216 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 22:20:56,216 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:20:56,217 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:20:56,218 INFO  L85        PathProgramCache]: Analyzing trace with hash -808809506, now seen corresponding path program 1 times
[2023-12-25 22:20:56,218 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:20:56,218 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889051691]
[2023-12-25 22:20:56,219 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:20:56,219 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:20:57,432 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:20:57,432 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236167331]
[2023-12-25 22:20:57,434 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:20:57,434 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:20:57,434 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:20:57,435 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 22:20:57,436 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 22:21:21,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:21:22,302 INFO  L262         TraceCheckSpWp]: Trace formula consists of 84998 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 22:21:22,456 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:21:23,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 28 proven. 491 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked.
[2023-12-25 22:21:23,811 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:21:24,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked.
[2023-12-25 22:21:24,022 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:21:24,022 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889051691]
[2023-12-25 22:21:24,022 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:21:24,023 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236167331]
[2023-12-25 22:21:24,023 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236167331] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:21:24,023 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:21:24,024 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12
[2023-12-25 22:21:24,024 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107913373]
[2023-12-25 22:21:24,024 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:21:24,028 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 22:21:24,028 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:21:24,031 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 22:21:24,032 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 22:21:24,032 INFO  L87              Difference]: Start difference. First operand 12395 states and 20637 transitions. Second operand  has 6 states, 6 states have (on average 1236.8333333333333) internal successors, (7421), 6 states have internal predecessors, (7421), 0 states have call successors, (0), 0 states 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 22:21:49,028 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:21:49,029 INFO  L93              Difference]: Finished difference Result 53344 states and 88521 transitions.
[2023-12-25 22:21:49,029 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 22:21:49,030 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1236.8333333333333) internal successors, (7421), 6 states have internal predecessors, (7421), 0 states have call successors, (0), 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 8266
[2023-12-25 22:21:49,035 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:21:49,059 INFO  L225             Difference]: With dead ends: 53344
[2023-12-25 22:21:49,059 INFO  L226             Difference]: Without dead ends: 33279
[2023-12-25 22:21:49,069 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16532 GetRequests, 16520 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 22:21:49,070 INFO  L413           NwaCegarLoop]: 31037 mSDtfsCounter, 64201 mSDsluCounter, 90950 mSDsCounter, 0 mSdLazyCounter, 27536 mSolverCounterSat, 857 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64201 SdHoareTripleChecker+Valid, 121987 SdHoareTripleChecker+Invalid, 28393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 857 IncrementalHoareTripleChecker+Valid, 27536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time
[2023-12-25 22:21:49,070 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [64201 Valid, 121987 Invalid, 28393 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [857 Valid, 27536 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time]
[2023-12-25 22:21:49,090 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33279 states.
[2023-12-25 22:21:49,212 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33279 to 12397.
[2023-12-25 22:21:49,222 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12397 states, 12396 states have (on average 1.664972571797354) internal successors, (20639), 12396 states have internal predecessors, (20639), 0 states have call successors, (0), 0 states 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 22:21:49,234 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12397 states to 12397 states and 20639 transitions.
[2023-12-25 22:21:49,234 INFO  L78                 Accepts]: Start accepts. Automaton has 12397 states and 20639 transitions. Word has length 8266
[2023-12-25 22:21:49,237 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:21:49,238 INFO  L495      AbstractCegarLoop]: Abstraction has 12397 states and 20639 transitions.
[2023-12-25 22:21:49,238 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1236.8333333333333) internal successors, (7421), 6 states have internal predecessors, (7421), 0 states have call successors, (0), 0 states 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 22:21:49,238 INFO  L276                IsEmpty]: Start isEmpty. Operand 12397 states and 20639 transitions.
[2023-12-25 22:21:49,704 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8268
[2023-12-25 22:21:49,704 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:21:49,706 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:49,928 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forcibly destroying the process
[2023-12-25 22:21:49,993 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 137
[2023-12-25 22:21:49,993 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 22:21:49,993 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:21:49,994 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:21:49,995 INFO  L85        PathProgramCache]: Analyzing trace with hash 1702228962, now seen corresponding path program 1 times
[2023-12-25 22:21:49,995 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:21:49,995 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925894821]
[2023-12-25 22:21:49,996 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:21:49,996 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:21:51,395 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:21:51,395 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292333099]
[2023-12-25 22:21:51,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:21:51,397 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:21:51,397 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:21:51,398 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 22:21:51,400 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 22:22:15,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:22:15,792 INFO  L262         TraceCheckSpWp]: Trace formula consists of 85002 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:22:16,040 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:22:17,302 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 30 proven. 491 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked.
[2023-12-25 22:22:17,302 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:22:17,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked.
[2023-12-25 22:22:17,520 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:22:17,520 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925894821]
[2023-12-25 22:22:17,520 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:22:17,521 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292333099]
[2023-12-25 22:22:17,521 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292333099] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:22:17,521 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:22:17,522 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:22:17,524 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606156314]
[2023-12-25 22:22:17,524 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:22:17,528 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:22:17,528 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:22:17,531 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:22:17,531 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:22:17,532 INFO  L87              Difference]: Start difference. First operand 12397 states and 20639 transitions. Second operand  has 5 states, 5 states have (on average 1484.8) internal successors, (7424), 5 states have internal predecessors, (7424), 0 states have call successors, (0), 0 states 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 22:22:29,788 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:22:29,788 INFO  L93              Difference]: Finished difference Result 42878 states and 71093 transitions.
[2023-12-25 22:22:29,788 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:22:29,790 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1484.8) internal successors, (7424), 5 states have internal predecessors, (7424), 0 states have call successors, (0), 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 8267
[2023-12-25 22:22:29,794 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:22:29,810 INFO  L225             Difference]: With dead ends: 42878
[2023-12-25 22:22:29,810 INFO  L226             Difference]: Without dead ends: 22806
[2023-12-25 22:22:29,820 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16533 GetRequests, 16524 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 22:22:29,821 INFO  L413           NwaCegarLoop]: 31027 mSDtfsCounter, 46831 mSDsluCounter, 32067 mSDsCounter, 0 mSdLazyCounter, 11209 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46831 SdHoareTripleChecker+Valid, 63094 SdHoareTripleChecker+Invalid, 12064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 11209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time
[2023-12-25 22:22:29,821 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46831 Valid, 63094 Invalid, 12064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 11209 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time]
[2023-12-25 22:22:29,834 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22806 states.
[2023-12-25 22:22:29,936 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22806 to 12399.
[2023-12-25 22:22:29,946 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12399 states, 12398 states have (on average 1.6648653008549765) internal successors, (20641), 12398 states have internal predecessors, (20641), 0 states have call successors, (0), 0 states 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 22:22:29,959 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12399 states to 12399 states and 20641 transitions.
[2023-12-25 22:22:29,959 INFO  L78                 Accepts]: Start accepts. Automaton has 12399 states and 20641 transitions. Word has length 8267
[2023-12-25 22:22:29,963 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:22:29,963 INFO  L495      AbstractCegarLoop]: Abstraction has 12399 states and 20641 transitions.
[2023-12-25 22:22:29,963 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1484.8) internal successors, (7424), 5 states have internal predecessors, (7424), 0 states have call successors, (0), 0 states 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 22:22:29,964 INFO  L276                IsEmpty]: Start isEmpty. Operand 12399 states and 20641 transitions.
[2023-12-25 22:22:30,317 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8269
[2023-12-25 22:22:30,317 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:22:30,319 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 22:22:30,532 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forcibly destroying the process
[2023-12-25 22:22:30,594 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 137
[2023-12-25 22:22:30,595 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 22:22:30,595 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:22:30,595 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:22:30,596 INFO  L85        PathProgramCache]: Analyzing trace with hash 817034310, now seen corresponding path program 1 times
[2023-12-25 22:22:30,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:22:30,597 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363316752]
[2023-12-25 22:22:30,597 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:22:30,597 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:22:31,783 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:22:31,783 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698284219]
[2023-12-25 22:22:31,785 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:22:31,785 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:22:31,785 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:22:31,786 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 22:22:31,787 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 22:22:56,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:22:56,745 INFO  L262         TraceCheckSpWp]: Trace formula consists of 85005 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 22:22:56,992 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:22:58,346 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 32 proven. 491 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked.
[2023-12-25 22:22:58,346 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:22:58,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 874 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 842 trivial. 0 not checked.
[2023-12-25 22:22:58,584 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:22:58,584 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363316752]
[2023-12-25 22:22:58,584 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:22:58,584 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698284219]
[2023-12-25 22:22:58,584 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698284219] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:22:58,584 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:22:58,585 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-25 22:22:58,585 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441868977]
[2023-12-25 22:22:58,585 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:22:58,590 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:22:58,590 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:22:58,593 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:22:58,593 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:22:58,595 INFO  L87              Difference]: Start difference. First operand 12399 states and 20641 transitions. Second operand  has 5 states, 5 states have (on average 1485.4) internal successors, (7427), 5 states have internal predecessors, (7427), 0 states have call successors, (0), 0 states 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 22:23:12,300 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:23:12,301 INFO  L93              Difference]: Finished difference Result 42886 states and 71101 transitions.
[2023-12-25 22:23:12,301 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:23:12,302 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1485.4) internal successors, (7427), 5 states have internal predecessors, (7427), 0 states have call successors, (0), 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 8268
[2023-12-25 22:23:12,307 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:23:12,324 INFO  L225             Difference]: With dead ends: 42886
[2023-12-25 22:23:12,325 INFO  L226             Difference]: Without dead ends: 22807
[2023-12-25 22:23:12,335 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16535 GetRequests, 16526 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 22:23:12,335 INFO  L413           NwaCegarLoop]: 31019 mSDtfsCounter, 32070 mSDsluCounter, 49127 mSDsCounter, 0 mSdLazyCounter, 14689 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32070 SdHoareTripleChecker+Valid, 80146 SdHoareTripleChecker+Invalid, 15544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 14689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time
[2023-12-25 22:23:12,336 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32070 Valid, 80146 Invalid, 15544 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [855 Valid, 14689 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time]
[2023-12-25 22:23:12,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22807 states.
[2023-12-25 22:23:12,463 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22807 to 12401.
[2023-12-25 22:23:12,475 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12401 states, 12400 states have (on average 1.664758064516129) internal successors, (20643), 12400 states have internal predecessors, (20643), 0 states have call successors, (0), 0 states 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 22:23:12,580 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12401 states to 12401 states and 20643 transitions.
[2023-12-25 22:23:12,580 INFO  L78                 Accepts]: Start accepts. Automaton has 12401 states and 20643 transitions. Word has length 8268
[2023-12-25 22:23:12,583 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:23:12,583 INFO  L495      AbstractCegarLoop]: Abstraction has 12401 states and 20643 transitions.
[2023-12-25 22:23:12,584 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1485.4) internal successors, (7427), 5 states have internal predecessors, (7427), 0 states have call successors, (0), 0 states 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 22:23:12,584 INFO  L276                IsEmpty]: Start isEmpty. Operand 12401 states and 20643 transitions.
[2023-12-25 22:23:12,935 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8270
[2023-12-25 22:23:12,936 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:23:12,937 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 22:23:13,137 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forcibly destroying the process
[2023-12-25 22:23:13,207 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 137
[2023-12-25 22:23:13,207 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 22:23:13,207 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:23:13,208 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:23:13,213 INFO  L85        PathProgramCache]: Analyzing trace with hash 1173027836, now seen corresponding path program 1 times
[2023-12-25 22:23:13,213 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:23:13,213 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576157959]
[2023-12-25 22:23:13,214 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:13,214 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:23:14,370 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:23:14,370 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248433293]
[2023-12-25 22:23:14,372 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:14,372 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:23:14,372 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:23:14,374 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 22:23:14,374 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process