/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.5.prop3-back-serstep.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-16 19:00:06,180 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-16 19:00:06,241 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2023-12-16 19:00:06,246 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-16 19:00:06,246 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-16 19:00:06,274 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-16 19:00:06,274 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-16 19:00:06,275 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-16 19:00:06,275 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-16 19:00:06,278 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-16 19:00:06,278 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-16 19:00:06,279 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-16 19:00:06,279 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-16 19:00:06,280 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-16 19:00:06,280 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-16 19:00:06,280 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-16 19:00:06,281 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-16 19:00:06,281 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-16 19:00:06,281 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-16 19:00:06,282 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-16 19:00:06,282 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-16 19:00:06,282 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-16 19:00:06,282 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-16 19:00:06,282 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-16 19:00:06,283 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-16 19:00:06,283 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-16 19:00:06,283 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-16 19:00:06,283 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-16 19:00:06,283 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-16 19:00:06,284 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 19:00:06,284 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-16 19:00:06,284 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-16 19:00:06,285 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-16 19:00:06,285 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-16 19:00:06,285 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-16 19:00:06,285 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-16 19:00:06,285 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-16 19:00:06,285 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-16 19:00:06,285 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-16 19:00:06,285 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-16 19:00:06,285 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-16 19:00:06,467 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-16 19:00:06,499 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-16 19:00:06,501 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-16 19:00:06,501 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-16 19:00:06,502 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-16 19:00:06,502 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.5.prop3-back-serstep.c
[2023-12-16 19:00:07,562 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-16 19:00:07,865 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-16 19:00:07,866 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.5.prop3-back-serstep.c
[2023-12-16 19:00:07,896 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3688bbfe9/870e2248105e42a6a1bfcffc963b2a7c/FLAG5283ee331
[2023-12-16 19:00:07,910 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3688bbfe9/870e2248105e42a6a1bfcffc963b2a7c
[2023-12-16 19:00:07,912 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-16 19:00:07,915 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-16 19:00:07,917 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-16 19:00:07,917 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-16 19:00:07,920 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-16 19:00:07,921 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:00:07" (1/1) ...
[2023-12-16 19:00:07,921 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536fe83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:07, skipping insertion in model container
[2023-12-16 19:00:07,922 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:00:07" (1/1) ...
[2023-12-16 19:00:07,985 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-16 19:00:08,139 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.5.prop3-back-serstep.c[1172,1185]
[2023-12-16 19:00:08,601 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 19:00:08,608 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-16 19:00:08,615 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.5.prop3-back-serstep.c[1172,1185]
[2023-12-16 19:00:08,751 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 19:00:08,806 INFO  L206         MainTranslator]: Completed translation
[2023-12-16 19:00:08,806 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08 WrapperNode
[2023-12-16 19:00:08,806 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-16 19:00:08,808 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-16 19:00:08,808 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-16 19:00:08,808 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-16 19:00:08,813 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:08,890 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:09,573 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13066
[2023-12-16 19:00:09,573 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-16 19:00:09,574 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-16 19:00:09,574 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-16 19:00:09,574 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-16 19:00:09,581 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:09,581 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:10,031 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:10,189 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-16 19:00:10,189 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:10,190 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:10,483 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:10,570 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:10,617 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:10,655 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:10,763 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-16 19:00:10,763 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-16 19:00:10,763 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-16 19:00:10,763 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-16 19:00:10,764 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (1/1) ...
[2023-12-16 19:00:10,768 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 19:00:10,774 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:00:10,784 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-16 19:00:10,795 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-16 19:00:10,809 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-16 19:00:10,809 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-16 19:00:10,809 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-16 19:00:10,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-16 19:00:11,289 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-16 19:00:11,290 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-16 19:00:16,271 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-16 19:00:16,416 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-16 19:00:16,416 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-16 19:00:16,416 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:00:16 BoogieIcfgContainer
[2023-12-16 19:00:16,417 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-16 19:00:16,419 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-16 19:00:16,419 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-16 19:00:16,421 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-16 19:00:16,422 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:00:07" (1/3) ...
[2023-12-16 19:00:16,423 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ecf5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:00:16, skipping insertion in model container
[2023-12-16 19:00:16,423 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:08" (2/3) ...
[2023-12-16 19:00:16,424 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ecf5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:00:16, skipping insertion in model container
[2023-12-16 19:00:16,424 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:00:16" (3/3) ...
[2023-12-16 19:00:16,425 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.brp2.5.prop3-back-serstep.c
[2023-12-16 19:00:16,436 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-16 19:00:16,436 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-16 19:00:16,503 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-16 19:00:16,508 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;@a92ea42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-16 19:00:16,508 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-16 19:00:16,518 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3071 states, 3069 states have (on average 1.671228413163897) internal successors, (5129), 3070 states have internal predecessors, (5129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:16,543 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 357
[2023-12-16 19:00:16,544 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:16,545 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:16,546 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:16,552 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:16,553 INFO  L85        PathProgramCache]: Analyzing trace with hash -2113911444, now seen corresponding path program 1 times
[2023-12-16 19:00:16,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:16,560 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446279274]
[2023-12-16 19:00:16,560 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:16,560 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:16,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:18,008 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:00:18,009 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:18,009 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446279274]
[2023-12-16 19:00:18,009 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446279274] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:00:18,010 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:00:18,010 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:00:18,011 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619958501]
[2023-12-16 19:00:18,013 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:18,018 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:00:18,018 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:18,043 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:00:18,044 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:18,050 INFO  L87              Difference]: Start difference. First operand  has 3071 states, 3069 states have (on average 1.671228413163897) internal successors, (5129), 3070 states have internal predecessors, (5129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:18,220 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:18,220 INFO  L93              Difference]: Finished difference Result 6006 states and 10034 transitions.
[2023-12-16 19:00:18,221 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:00:18,222 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356
[2023-12-16 19:00:18,225 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:18,244 INFO  L225             Difference]: With dead ends: 6006
[2023-12-16 19:00:18,244 INFO  L226             Difference]: Without dead ends: 3071
[2023-12-16 19:00:18,251 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:18,254 INFO  L413           NwaCegarLoop]: 5122 mSDtfsCounter, 1 mSDsluCounter, 10239 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15361 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:18,254 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 15361 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:00:18,270 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3071 states.
[2023-12-16 19:00:18,337 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 3071.
[2023-12-16 19:00:18,342 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3071 states, 3070 states have (on average 1.6700325732899022) internal successors, (5127), 3070 states have internal predecessors, (5127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:18,349 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 5127 transitions.
[2023-12-16 19:00:18,350 INFO  L78                 Accepts]: Start accepts. Automaton has 3071 states and 5127 transitions. Word has length 356
[2023-12-16 19:00:18,353 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:18,353 INFO  L495      AbstractCegarLoop]: Abstraction has 3071 states and 5127 transitions.
[2023-12-16 19:00:18,354 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:18,354 INFO  L276                IsEmpty]: Start isEmpty. Operand 3071 states and 5127 transitions.
[2023-12-16 19:00:18,357 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 358
[2023-12-16 19:00:18,357 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:18,357 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:18,357 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-16 19:00:18,358 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:18,358 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:18,358 INFO  L85        PathProgramCache]: Analyzing trace with hash -1105018264, now seen corresponding path program 1 times
[2023-12-16 19:00:18,358 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:18,359 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533915761]
[2023-12-16 19:00:18,359 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:18,359 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:18,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:18,942 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:00:18,942 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:18,942 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533915761]
[2023-12-16 19:00:18,943 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533915761] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:00:18,943 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:00:18,943 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:00:18,943 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922528195]
[2023-12-16 19:00:18,943 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:18,946 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:00:18,949 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:18,949 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:00:18,949 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:18,950 INFO  L87              Difference]: Start difference. First operand 3071 states and 5127 transitions. Second operand  has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:19,036 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:19,037 INFO  L93              Difference]: Finished difference Result 6009 states and 10032 transitions.
[2023-12-16 19:00:19,037 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:00:19,037 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 357
[2023-12-16 19:00:19,038 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:19,046 INFO  L225             Difference]: With dead ends: 6009
[2023-12-16 19:00:19,047 INFO  L226             Difference]: Without dead ends: 3074
[2023-12-16 19:00:19,050 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:19,051 INFO  L413           NwaCegarLoop]: 5122 mSDtfsCounter, 1 mSDsluCounter, 10237 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15359 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:19,052 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 15359 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:00:19,057 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3074 states.
[2023-12-16 19:00:19,089 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 3073.
[2023-12-16 19:00:19,094 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3073 states, 3072 states have (on average 1.6695963541666667) internal successors, (5129), 3072 states have internal predecessors, (5129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:19,100 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3073 states to 3073 states and 5129 transitions.
[2023-12-16 19:00:19,101 INFO  L78                 Accepts]: Start accepts. Automaton has 3073 states and 5129 transitions. Word has length 357
[2023-12-16 19:00:19,101 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:19,101 INFO  L495      AbstractCegarLoop]: Abstraction has 3073 states and 5129 transitions.
[2023-12-16 19:00:19,102 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:19,102 INFO  L276                IsEmpty]: Start isEmpty. Operand 3073 states and 5129 transitions.
[2023-12-16 19:00:19,104 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 359
[2023-12-16 19:00:19,105 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:19,105 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:19,105 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-16 19:00:19,105 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:19,112 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:19,112 INFO  L85        PathProgramCache]: Analyzing trace with hash -106258170, now seen corresponding path program 1 times
[2023-12-16 19:00:19,112 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:19,113 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28778427]
[2023-12-16 19:00:19,113 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:19,113 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:19,310 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:19,692 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:00:19,692 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:19,692 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28778427]
[2023-12-16 19:00:19,693 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28778427] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:00:19,693 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:00:19,693 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:00:19,693 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801842788]
[2023-12-16 19:00:19,693 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:19,694 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:00:19,694 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:19,694 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:00:19,696 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:19,696 INFO  L87              Difference]: Start difference. First operand 3073 states and 5129 transitions. Second operand  has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:19,824 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:19,824 INFO  L93              Difference]: Finished difference Result 8941 states and 14926 transitions.
[2023-12-16 19:00:19,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 19:00:19,825 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 358
[2023-12-16 19:00:19,825 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:19,841 INFO  L225             Difference]: With dead ends: 8941
[2023-12-16 19:00:19,841 INFO  L226             Difference]: Without dead ends: 6004
[2023-12-16 19:00:19,847 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-16 19:00:19,849 INFO  L413           NwaCegarLoop]: 5767 mSDtfsCounter, 4890 mSDsluCounter, 10880 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4890 SdHoareTripleChecker+Valid, 16647 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:19,849 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4890 Valid, 16647 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:00:19,854 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6004 states.
[2023-12-16 19:00:19,897 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3075.
[2023-12-16 19:00:19,902 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3075 states, 3074 states have (on average 1.6691607026675341) internal successors, (5131), 3074 states have internal predecessors, (5131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:19,907 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3075 states to 3075 states and 5131 transitions.
[2023-12-16 19:00:19,907 INFO  L78                 Accepts]: Start accepts. Automaton has 3075 states and 5131 transitions. Word has length 358
[2023-12-16 19:00:19,908 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:19,908 INFO  L495      AbstractCegarLoop]: Abstraction has 3075 states and 5131 transitions.
[2023-12-16 19:00:19,909 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:19,910 INFO  L276                IsEmpty]: Start isEmpty. Operand 3075 states and 5131 transitions.
[2023-12-16 19:00:19,914 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 360
[2023-12-16 19:00:19,914 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:19,918 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:19,918 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-16 19:00:19,918 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:19,918 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:19,919 INFO  L85        PathProgramCache]: Analyzing trace with hash -2087121396, now seen corresponding path program 1 times
[2023-12-16 19:00:19,919 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:19,919 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535958502]
[2023-12-16 19:00:19,919 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:19,919 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:20,020 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:20,387 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:00:20,387 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:20,387 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535958502]
[2023-12-16 19:00:20,387 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535958502] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:00:20,387 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:00:20,387 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:00:20,387 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735542222]
[2023-12-16 19:00:20,387 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:20,388 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:00:20,388 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:20,388 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:00:20,388 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:20,389 INFO  L87              Difference]: Start difference. First operand 3075 states and 5131 transitions. Second operand  has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:20,592 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:20,592 INFO  L93              Difference]: Finished difference Result 8944 states and 14927 transitions.
[2023-12-16 19:00:20,592 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 19:00:20,593 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359
[2023-12-16 19:00:20,593 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:20,607 INFO  L225             Difference]: With dead ends: 8944
[2023-12-16 19:00:20,607 INFO  L226             Difference]: Without dead ends: 6005
[2023-12-16 19:00:20,611 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-16 19:00:20,616 INFO  L413           NwaCegarLoop]: 5762 mSDtfsCounter, 4887 mSDsluCounter, 10875 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4887 SdHoareTripleChecker+Valid, 16637 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:20,616 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4887 Valid, 16637 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:00:20,622 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6005 states.
[2023-12-16 19:00:20,661 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6005 to 3077.
[2023-12-16 19:00:20,665 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3077 states, 3076 states have (on average 1.6687256176853056) internal successors, (5133), 3076 states have internal predecessors, (5133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:20,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3077 states to 3077 states and 5133 transitions.
[2023-12-16 19:00:20,670 INFO  L78                 Accepts]: Start accepts. Automaton has 3077 states and 5133 transitions. Word has length 359
[2023-12-16 19:00:20,671 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:20,671 INFO  L495      AbstractCegarLoop]: Abstraction has 3077 states and 5133 transitions.
[2023-12-16 19:00:20,671 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:20,671 INFO  L276                IsEmpty]: Start isEmpty. Operand 3077 states and 5133 transitions.
[2023-12-16 19:00:20,674 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 361
[2023-12-16 19:00:20,674 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:20,674 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:20,674 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-16 19:00:20,674 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:20,674 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:20,674 INFO  L85        PathProgramCache]: Analyzing trace with hash 141466846, now seen corresponding path program 1 times
[2023-12-16 19:00:20,674 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:20,675 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291756435]
[2023-12-16 19:00:20,675 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:20,675 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:20,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:21,219 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:00:21,220 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:21,220 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291756435]
[2023-12-16 19:00:21,220 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291756435] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:00:21,220 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:00:21,220 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-16 19:00:21,220 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216761191]
[2023-12-16 19:00:21,220 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:21,220 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-16 19:00:21,221 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:21,221 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-16 19:00:21,221 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-16 19:00:21,222 INFO  L87              Difference]: Start difference. First operand 3077 states and 5133 transitions. Second operand  has 6 states, 6 states have (on average 60.0) internal successors, (360), 5 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:21,419 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:21,419 INFO  L93              Difference]: Finished difference Result 9342 states and 15585 transitions.
[2023-12-16 19:00:21,420 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:00:21,420 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 60.0) internal successors, (360), 5 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360
[2023-12-16 19:00:21,421 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:21,450 INFO  L225             Difference]: With dead ends: 9342
[2023-12-16 19:00:21,450 INFO  L226             Difference]: Without dead ends: 6401
[2023-12-16 19:00:21,456 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2023-12-16 19:00:21,456 INFO  L413           NwaCegarLoop]: 5766 mSDtfsCounter, 20092 mSDsluCounter, 16000 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20092 SdHoareTripleChecker+Valid, 21766 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:21,457 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [20092 Valid, 21766 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:00:21,462 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6401 states.
[2023-12-16 19:00:21,517 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6401 to 3464.
[2023-12-16 19:00:21,532 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3464 states, 3463 states have (on average 1.6684955241120416) internal successors, (5778), 3463 states have internal predecessors, (5778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:21,539 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3464 states to 3464 states and 5778 transitions.
[2023-12-16 19:00:21,540 INFO  L78                 Accepts]: Start accepts. Automaton has 3464 states and 5778 transitions. Word has length 360
[2023-12-16 19:00:21,540 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:21,540 INFO  L495      AbstractCegarLoop]: Abstraction has 3464 states and 5778 transitions.
[2023-12-16 19:00:21,541 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 60.0) internal successors, (360), 5 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:21,542 INFO  L276                IsEmpty]: Start isEmpty. Operand 3464 states and 5778 transitions.
[2023-12-16 19:00:21,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2246
[2023-12-16 19:00:21,610 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:21,612 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:21,612 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-16 19:00:21,612 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:21,613 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:21,613 INFO  L85        PathProgramCache]: Analyzing trace with hash 1693527156, now seen corresponding path program 1 times
[2023-12-16 19:00:21,613 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:21,613 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687021611]
[2023-12-16 19:00:21,614 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:21,614 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:22,000 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:00:22,000 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123659602]
[2023-12-16 19:00:22,000 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:22,001 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:22,001 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:00:22,003 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:00:22,055 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-16 19:00:24,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:24,369 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9851 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 19:00:24,423 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:00:24,517 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:00:24,517 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 19:00:24,517 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:24,517 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687021611]
[2023-12-16 19:00:24,518 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:00:24,518 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123659602]
[2023-12-16 19:00:24,518 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123659602] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:00:24,518 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:00:24,518 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:00:24,518 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367064500]
[2023-12-16 19:00:24,518 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:24,520 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:00:24,520 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:24,522 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:00:24,522 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:24,522 INFO  L87              Difference]: Start difference. First operand 3464 states and 5778 transitions. Second operand  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:24,605 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:24,606 INFO  L93              Difference]: Finished difference Result 6415 states and 10701 transitions.
[2023-12-16 19:00:24,609 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:00:24,610 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2245
[2023-12-16 19:00:24,612 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:24,618 INFO  L225             Difference]: With dead ends: 6415
[2023-12-16 19:00:24,618 INFO  L226             Difference]: Without dead ends: 3474
[2023-12-16 19:00:24,621 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2244 GetRequests, 2242 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:24,622 INFO  L413           NwaCegarLoop]: 5122 mSDtfsCounter, 12 mSDsluCounter, 10234 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15356 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:24,622 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15356 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:00:24,626 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3474 states.
[2023-12-16 19:00:24,661 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3474 to 3466.
[2023-12-16 19:00:24,665 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3466 states, 3465 states have (on average 1.668109668109668) internal successors, (5780), 3465 states have internal predecessors, (5780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:24,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3466 states to 3466 states and 5780 transitions.
[2023-12-16 19:00:24,671 INFO  L78                 Accepts]: Start accepts. Automaton has 3466 states and 5780 transitions. Word has length 2245
[2023-12-16 19:00:24,672 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:24,672 INFO  L495      AbstractCegarLoop]: Abstraction has 3466 states and 5780 transitions.
[2023-12-16 19:00:24,673 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:24,673 INFO  L276                IsEmpty]: Start isEmpty. Operand 3466 states and 5780 transitions.
[2023-12-16 19:00:24,722 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2246
[2023-12-16 19:00:24,722 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:24,723 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:24,755 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-16 19:00:24,943 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2023-12-16 19:00:24,944 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:24,944 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:24,945 INFO  L85        PathProgramCache]: Analyzing trace with hash -1311484698, now seen corresponding path program 1 times
[2023-12-16 19:00:24,945 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:24,945 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249771912]
[2023-12-16 19:00:24,945 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:24,945 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:25,388 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:00:25,389 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874965690]
[2023-12-16 19:00:25,389 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:25,389 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:25,389 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:00:25,390 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:00:25,440 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-16 19:00:27,771 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:27,834 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9852 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 19:00:27,891 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:00:27,952 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:00:27,952 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 19:00:27,952 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:27,952 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249771912]
[2023-12-16 19:00:27,952 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:00:27,953 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874965690]
[2023-12-16 19:00:27,953 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874965690] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:00:27,953 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:00:27,953 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:00:27,953 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898756584]
[2023-12-16 19:00:27,953 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:27,955 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:00:27,955 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:27,957 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:00:27,957 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:27,958 INFO  L87              Difference]: Start difference. First operand 3466 states and 5780 transitions. Second operand  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:28,040 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:28,040 INFO  L93              Difference]: Finished difference Result 6418 states and 10703 transitions.
[2023-12-16 19:00:28,040 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:00:28,042 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2245
[2023-12-16 19:00:28,043 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:28,048 INFO  L225             Difference]: With dead ends: 6418
[2023-12-16 19:00:28,048 INFO  L226             Difference]: Without dead ends: 3475
[2023-12-16 19:00:28,052 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2244 GetRequests, 2242 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:28,052 INFO  L413           NwaCegarLoop]: 5122 mSDtfsCounter, 12 mSDsluCounter, 10234 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15356 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:28,053 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15356 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:00:28,056 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3475 states.
[2023-12-16 19:00:28,098 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3475 to 3467.
[2023-12-16 19:00:28,102 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3467 states, 3466 states have (on average 1.6679169070975188) internal successors, (5781), 3466 states have internal predecessors, (5781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:28,109 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 5781 transitions.
[2023-12-16 19:00:28,109 INFO  L78                 Accepts]: Start accepts. Automaton has 3467 states and 5781 transitions. Word has length 2245
[2023-12-16 19:00:28,111 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:28,111 INFO  L495      AbstractCegarLoop]: Abstraction has 3467 states and 5781 transitions.
[2023-12-16 19:00:28,112 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:28,112 INFO  L276                IsEmpty]: Start isEmpty. Operand 3467 states and 5781 transitions.
[2023-12-16 19:00:28,154 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2246
[2023-12-16 19:00:28,154 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:28,155 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:28,200 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-16 19:00:28,364 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2023-12-16 19:00:28,364 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:28,365 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:28,365 INFO  L85        PathProgramCache]: Analyzing trace with hash -1043788328, now seen corresponding path program 1 times
[2023-12-16 19:00:28,365 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:28,366 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551157089]
[2023-12-16 19:00:28,366 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:28,366 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:28,666 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:00:28,667 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843952823]
[2023-12-16 19:00:28,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:28,667 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:28,668 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:00:28,685 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:00:28,748 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-16 19:00:30,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:30,990 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9853 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 19:00:31,017 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:00:31,064 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:00:31,065 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 19:00:31,065 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:31,065 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551157089]
[2023-12-16 19:00:31,065 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:00:31,065 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843952823]
[2023-12-16 19:00:31,065 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843952823] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:00:31,065 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:00:31,065 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:00:31,065 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627906463]
[2023-12-16 19:00:31,065 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:31,067 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:00:31,067 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:31,069 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:00:31,069 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:31,070 INFO  L87              Difference]: Start difference. First operand 3467 states and 5781 transitions. Second operand  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:31,133 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:31,133 INFO  L93              Difference]: Finished difference Result 6420 states and 10705 transitions.
[2023-12-16 19:00:31,133 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:00:31,134 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2245
[2023-12-16 19:00:31,136 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:31,147 INFO  L225             Difference]: With dead ends: 6420
[2023-12-16 19:00:31,147 INFO  L226             Difference]: Without dead ends: 3476
[2023-12-16 19:00:31,151 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2244 GetRequests, 2242 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:00:31,152 INFO  L413           NwaCegarLoop]: 5122 mSDtfsCounter, 12 mSDsluCounter, 10234 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15356 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:31,152 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15356 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:00:31,155 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3476 states.
[2023-12-16 19:00:31,193 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 3468.
[2023-12-16 19:00:31,197 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3468 states, 3467 states have (on average 1.6677242572829536) internal successors, (5782), 3467 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:31,201 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 5782 transitions.
[2023-12-16 19:00:31,201 INFO  L78                 Accepts]: Start accepts. Automaton has 3468 states and 5782 transitions. Word has length 2245
[2023-12-16 19:00:31,203 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:31,203 INFO  L495      AbstractCegarLoop]: Abstraction has 3468 states and 5782 transitions.
[2023-12-16 19:00:31,204 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:31,204 INFO  L276                IsEmpty]: Start isEmpty. Operand 3468 states and 5782 transitions.
[2023-12-16 19:00:31,233 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2246
[2023-12-16 19:00:31,233 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:31,234 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:31,259 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-16 19:00:31,453 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:31,453 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:31,454 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:31,454 INFO  L85        PathProgramCache]: Analyzing trace with hash -936758326, now seen corresponding path program 1 times
[2023-12-16 19:00:31,454 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:31,454 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877986544]
[2023-12-16 19:00:31,455 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:31,455 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:31,674 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:00:31,675 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1712782026]
[2023-12-16 19:00:31,675 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:31,675 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:31,675 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:00:31,676 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:00:31,704 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-16 19:00:33,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:34,026 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9854 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:00:34,058 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:00:34,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 10 proven. 231 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2023-12-16 19:00:34,403 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:00:34,471 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked.
[2023-12-16 19:00:34,471 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:34,472 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877986544]
[2023-12-16 19:00:34,472 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:00:34,472 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712782026]
[2023-12-16 19:00:34,472 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712782026] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:00:34,472 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:00:34,472 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:00:34,472 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411613109]
[2023-12-16 19:00:34,472 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:34,474 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:00:34,474 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:34,476 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:00:34,476 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:00:34,476 INFO  L87              Difference]: Start difference. First operand 3468 states and 5782 transitions. Second operand  has 5 states, 5 states have (on average 398.4) internal successors, (1992), 5 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:37,079 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:37,080 INFO  L93              Difference]: Finished difference Result 12069 states and 20054 transitions.
[2023-12-16 19:00:37,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:00:37,081 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 398.4) internal successors, (1992), 5 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2245
[2023-12-16 19:00:37,087 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:37,101 INFO  L225             Difference]: With dead ends: 12069
[2023-12-16 19:00:37,102 INFO  L226             Difference]: Without dead ends: 6403
[2023-12-16 19:00:37,109 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4489 GetRequests, 4480 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-16 19:00:37,110 INFO  L413           NwaCegarLoop]: 8856 mSDtfsCounter, 13315 mSDsluCounter, 8576 mSDsCounter, 0 mSdLazyCounter, 3433 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13315 SdHoareTripleChecker+Valid, 17432 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 3433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:37,111 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13315 Valid, 17432 Invalid, 3656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 3433 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2023-12-16 19:00:37,117 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6403 states.
[2023-12-16 19:00:37,159 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6403 to 3470.
[2023-12-16 19:00:37,163 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3470 states, 3469 states have (on average 1.6673392908619198) internal successors, (5784), 3469 states have internal predecessors, (5784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:37,169 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 5784 transitions.
[2023-12-16 19:00:37,169 INFO  L78                 Accepts]: Start accepts. Automaton has 3470 states and 5784 transitions. Word has length 2245
[2023-12-16 19:00:37,171 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:37,171 INFO  L495      AbstractCegarLoop]: Abstraction has 3470 states and 5784 transitions.
[2023-12-16 19:00:37,172 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 398.4) internal successors, (1992), 5 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:37,172 INFO  L276                IsEmpty]: Start isEmpty. Operand 3470 states and 5784 transitions.
[2023-12-16 19:00:37,201 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2247
[2023-12-16 19:00:37,201 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:37,202 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:37,231 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-16 19:00:37,427 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:37,427 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:37,428 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:37,428 INFO  L85        PathProgramCache]: Analyzing trace with hash 1181773830, now seen corresponding path program 1 times
[2023-12-16 19:00:37,428 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:37,428 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833854819]
[2023-12-16 19:00:37,429 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:37,429 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:37,647 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:00:37,647 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235202269]
[2023-12-16 19:00:37,648 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:37,648 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:37,648 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:00:37,649 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:00:37,673 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-16 19:00:39,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:39,756 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9857 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:00:39,784 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:00:40,077 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 12 proven. 231 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2023-12-16 19:00:40,078 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:00:40,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2023-12-16 19:00:40,146 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:40,146 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833854819]
[2023-12-16 19:00:40,146 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:00:40,146 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235202269]
[2023-12-16 19:00:40,146 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [235202269] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:00:40,146 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:00:40,147 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:00:40,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001546793]
[2023-12-16 19:00:40,147 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:40,148 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:00:40,148 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:40,150 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:00:40,150 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:00:40,150 INFO  L87              Difference]: Start difference. First operand 3470 states and 5784 transitions. Second operand  has 5 states, 5 states have (on average 399.0) internal successors, (1995), 5 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:42,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:42,834 INFO  L93              Difference]: Finished difference Result 12077 states and 20062 transitions.
[2023-12-16 19:00:42,836 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:00:42,836 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 399.0) internal successors, (1995), 5 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2246
[2023-12-16 19:00:42,839 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:42,847 INFO  L225             Difference]: With dead ends: 12077
[2023-12-16 19:00:42,847 INFO  L226             Difference]: Without dead ends: 6404
[2023-12-16 19:00:42,853 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4491 GetRequests, 4482 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-16 19:00:42,853 INFO  L413           NwaCegarLoop]: 8848 mSDtfsCounter, 9094 mSDsluCounter, 13033 mSDsCounter, 0 mSdLazyCounter, 4725 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9094 SdHoareTripleChecker+Valid, 21881 SdHoareTripleChecker+Invalid, 4948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 4725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:42,854 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9094 Valid, 21881 Invalid, 4948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 4725 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-16 19:00:42,858 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6404 states.
[2023-12-16 19:00:42,894 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6404 to 3472.
[2023-12-16 19:00:42,898 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3472 states, 3471 states have (on average 1.6669547680783636) internal successors, (5786), 3471 states have internal predecessors, (5786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:42,901 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 5786 transitions.
[2023-12-16 19:00:42,901 INFO  L78                 Accepts]: Start accepts. Automaton has 3472 states and 5786 transitions. Word has length 2246
[2023-12-16 19:00:42,903 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:42,903 INFO  L495      AbstractCegarLoop]: Abstraction has 3472 states and 5786 transitions.
[2023-12-16 19:00:42,904 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 399.0) internal successors, (1995), 5 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:42,904 INFO  L276                IsEmpty]: Start isEmpty. Operand 3472 states and 5786 transitions.
[2023-12-16 19:00:42,932 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2248
[2023-12-16 19:00:42,932 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:42,933 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:42,963 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-12-16 19:00:43,156 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-12-16 19:00:43,157 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:43,158 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:43,158 INFO  L85        PathProgramCache]: Analyzing trace with hash -1084153756, now seen corresponding path program 1 times
[2023-12-16 19:00:43,158 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:43,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329180805]
[2023-12-16 19:00:43,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:43,159 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:43,512 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:00:43,512 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884788722]
[2023-12-16 19:00:43,512 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:43,513 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:43,513 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:00:43,528 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:00:43,529 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-12-16 19:00:45,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:45,833 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9860 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-16 19:00:45,868 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:00:46,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 14 proven. 231 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2023-12-16 19:00:46,239 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:00:46,345 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2023-12-16 19:00:46,345 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:46,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329180805]
[2023-12-16 19:00:46,345 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:00:46,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884788722]
[2023-12-16 19:00:46,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [884788722] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:00:46,346 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:00:46,346 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12
[2023-12-16 19:00:46,348 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936298035]
[2023-12-16 19:00:46,348 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:46,349 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-16 19:00:46,349 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:46,351 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-16 19:00:46,351 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-16 19:00:46,351 INFO  L87              Difference]: Start difference. First operand 3472 states and 5786 transitions. Second operand  has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:51,004 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:51,004 INFO  L93              Difference]: Finished difference Result 15040 states and 24995 transitions.
[2023-12-16 19:00:51,004 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-16 19:00:51,005 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2247
[2023-12-16 19:00:51,007 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:51,019 INFO  L225             Difference]: With dead ends: 15040
[2023-12-16 19:00:51,020 INFO  L226             Difference]: Without dead ends: 9360
[2023-12-16 19:00:51,027 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4494 GetRequests, 4482 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182
[2023-12-16 19:00:51,028 INFO  L413           NwaCegarLoop]: 8842 mSDtfsCounter, 22407 mSDsluCounter, 21013 mSDsCounter, 0 mSdLazyCounter, 7196 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22407 SdHoareTripleChecker+Valid, 29855 SdHoareTripleChecker+Invalid, 7422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 7196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:51,028 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [22407 Valid, 29855 Invalid, 7422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [226 Valid, 7196 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2023-12-16 19:00:51,036 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9360 states.
[2023-12-16 19:00:51,083 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9360 to 3474.
[2023-12-16 19:00:51,086 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3474 states, 3473 states have (on average 1.6665706881658509) internal successors, (5788), 3473 states have internal predecessors, (5788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:51,090 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 5788 transitions.
[2023-12-16 19:00:51,090 INFO  L78                 Accepts]: Start accepts. Automaton has 3474 states and 5788 transitions. Word has length 2247
[2023-12-16 19:00:51,091 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:51,091 INFO  L495      AbstractCegarLoop]: Abstraction has 3474 states and 5788 transitions.
[2023-12-16 19:00:51,092 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:51,092 INFO  L276                IsEmpty]: Start isEmpty. Operand 3474 states and 5788 transitions.
[2023-12-16 19:00:51,121 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2249
[2023-12-16 19:00:51,121 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:51,122 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:51,156 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-12-16 19:00:51,348 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:51,348 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:51,349 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:51,349 INFO  L85        PathProgramCache]: Analyzing trace with hash 649608618, now seen corresponding path program 1 times
[2023-12-16 19:00:51,349 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:51,349 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041068698]
[2023-12-16 19:00:51,350 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:51,350 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:51,554 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:00:51,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773398615]
[2023-12-16 19:00:51,555 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:51,555 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:51,555 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:00:51,556 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:00:51,558 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-12-16 19:00:53,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:00:53,656 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9864 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:00:53,695 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:00:54,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 16 proven. 231 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2023-12-16 19:00:54,205 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:00:54,295 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked.
[2023-12-16 19:00:54,295 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:00:54,295 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041068698]
[2023-12-16 19:00:54,295 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:00:54,308 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773398615]
[2023-12-16 19:00:54,308 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [773398615] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:00:54,308 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:00:54,308 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:00:54,309 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19833594]
[2023-12-16 19:00:54,309 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:00:54,312 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:00:54,312 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:00:54,314 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:00:54,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:00:54,314 INFO  L87              Difference]: Start difference. First operand 3474 states and 5788 transitions. Second operand  has 5 states, 5 states have (on average 400.2) internal successors, (2001), 5 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:57,599 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:00:57,599 INFO  L93              Difference]: Finished difference Result 12093 states and 20078 transitions.
[2023-12-16 19:00:57,599 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:00:57,600 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 400.2) internal successors, (2001), 5 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2248
[2023-12-16 19:00:57,601 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:00:57,629 INFO  L225             Difference]: With dead ends: 12093
[2023-12-16 19:00:57,629 INFO  L226             Difference]: Without dead ends: 6406
[2023-12-16 19:00:57,633 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4495 GetRequests, 4486 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-16 19:00:57,634 INFO  L413           NwaCegarLoop]: 8832 mSDtfsCounter, 9082 mSDsluCounter, 13013 mSDsCounter, 0 mSdLazyCounter, 4725 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9082 SdHoareTripleChecker+Valid, 21845 SdHoareTripleChecker+Invalid, 4948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 4725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2023-12-16 19:00:57,634 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9082 Valid, 21845 Invalid, 4948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 4725 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2023-12-16 19:00:57,639 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6406 states.
[2023-12-16 19:00:57,702 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6406 to 3476.
[2023-12-16 19:00:57,712 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3476 states, 3475 states have (on average 1.6661870503597123) internal successors, (5790), 3475 states have internal predecessors, (5790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:57,716 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 5790 transitions.
[2023-12-16 19:00:57,716 INFO  L78                 Accepts]: Start accepts. Automaton has 3476 states and 5790 transitions. Word has length 2248
[2023-12-16 19:00:57,717 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:00:57,718 INFO  L495      AbstractCegarLoop]: Abstraction has 3476 states and 5790 transitions.
[2023-12-16 19:00:57,718 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 400.2) internal successors, (2001), 5 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:00:57,718 INFO  L276                IsEmpty]: Start isEmpty. Operand 3476 states and 5790 transitions.
[2023-12-16 19:00:57,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2250
[2023-12-16 19:00:57,776 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:00:57,777 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:00:57,837 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-12-16 19:00:58,006 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:58,007 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:00:58,007 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:00:58,008 INFO  L85        PathProgramCache]: Analyzing trace with hash -1445773252, now seen corresponding path program 1 times
[2023-12-16 19:00:58,008 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:00:58,008 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397147654]
[2023-12-16 19:00:58,008 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:58,008 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:00:58,314 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:00:58,315 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047277303]
[2023-12-16 19:00:58,315 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:00:58,315 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:00:58,315 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:00:58,329 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:00:58,354 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-12-16 19:01:00,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:00,444 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9867 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:01:00,471 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:00,867 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 231 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2023-12-16 19:01:00,867 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:01:00,940 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-16 19:01:00,940 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:00,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397147654]
[2023-12-16 19:01:00,940 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:00,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047277303]
[2023-12-16 19:01:00,940 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047277303] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:01:00,940 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:01:00,941 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:01:00,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138245537]
[2023-12-16 19:01:00,941 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:00,942 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:01:00,942 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:00,944 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:01:00,944 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:01:00,945 INFO  L87              Difference]: Start difference. First operand 3476 states and 5790 transitions. Second operand  has 5 states, 5 states have (on average 400.8) internal successors, (2004), 5 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:03,841 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:01:03,841 INFO  L93              Difference]: Finished difference Result 12101 states and 20086 transitions.
[2023-12-16 19:01:03,842 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-16 19:01:03,842 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 400.8) internal successors, (2004), 5 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2249
[2023-12-16 19:01:03,844 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:01:03,850 INFO  L225             Difference]: With dead ends: 12101
[2023-12-16 19:01:03,851 INFO  L226             Difference]: Without dead ends: 6407
[2023-12-16 19:01:03,857 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4497 GetRequests, 4488 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-16 19:01:03,858 INFO  L413           NwaCegarLoop]: 8824 mSDtfsCounter, 9083 mSDsluCounter, 12532 mSDsCounter, 0 mSdLazyCounter, 4329 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9083 SdHoareTripleChecker+Valid, 21356 SdHoareTripleChecker+Invalid, 4552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 4329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:03,858 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9083 Valid, 21356 Invalid, 4552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 4329 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2023-12-16 19:01:03,862 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6407 states.
[2023-12-16 19:01:03,895 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6407 to 3478.
[2023-12-16 19:01:03,899 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3478 states, 3477 states have (on average 1.6658038538970377) internal successors, (5792), 3477 states have internal predecessors, (5792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:03,902 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 5792 transitions.
[2023-12-16 19:01:03,902 INFO  L78                 Accepts]: Start accepts. Automaton has 3478 states and 5792 transitions. Word has length 2249
[2023-12-16 19:01:03,903 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:01:03,903 INFO  L495      AbstractCegarLoop]: Abstraction has 3478 states and 5792 transitions.
[2023-12-16 19:01:03,904 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 400.8) internal successors, (2004), 5 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 19:01:03,904 INFO  L276                IsEmpty]: Start isEmpty. Operand 3478 states and 5792 transitions.
[2023-12-16 19:01:03,933 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2251
[2023-12-16 19:01:03,933 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:01:03,934 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:03,975 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2023-12-16 19:01:04,154 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2023-12-16 19:01:04,154 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:01:04,155 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:01:04,155 INFO  L85        PathProgramCache]: Analyzing trace with hash -241154032, now seen corresponding path program 1 times
[2023-12-16 19:01:04,155 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:01:04,155 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075684374]
[2023-12-16 19:01:04,156 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:04,156 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:01:04,464 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:01:04,465 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [600737745]
[2023-12-16 19:01:04,465 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:01:04,465 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:01:04,465 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:01:04,474 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-16 19:01:04,488 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-12-16 19:01:06,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:01:06,636 INFO  L262         TraceCheckSpWp]: Trace formula consists of 9870 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 19:01:06,661 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:01:06,960 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 20 proven. 231 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2023-12-16 19:01:06,961 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 19:01:07,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked.
[2023-12-16 19:01:07,034 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:01:07,034 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075684374]
[2023-12-16 19:01:07,034 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:01:07,034 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600737745]
[2023-12-16 19:01:07,035 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [600737745] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 19:01:07,035 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 19:01:07,035 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2023-12-16 19:01:07,036 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443995743]
[2023-12-16 19:01:07,036 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:01:07,037 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 19:01:07,037 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:01:07,040 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 19:01:07,040 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:01:07,041 INFO  L87              Difference]: Start difference. First operand 3478 states and 5792 transitions. Second operand  has 5 states, 5 states have (on average 401.4) internal successors, (2007), 5 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
Received shutdown request...
[2023-12-16 19:01:08,307 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 19:01:08,318 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-16 19:01:08,318 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4498 GetRequests, 4490 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 19:01:08,318 INFO  L413           NwaCegarLoop]: 4236 mSDtfsCounter, 3702 mSDsluCounter, 5995 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3702 SdHoareTripleChecker+Valid, 10231 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2023-12-16 19:01:08,319 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3702 Valid, 10231 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2023-12-16 19:01:08,319 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-16 19:01:08,334 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 19:01:08,356 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2023-12-16 19:01:08,524 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2023-12-16 19:01:08,525 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (3478states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (5097 states constructed, input type IntersectNwa).
[2023-12-16 19:01:08,528 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:01:08,530 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-16 19:01:08,531 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:01:08 BoogieIcfgContainer
[2023-12-16 19:01:08,531 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-16 19:01:08,531 INFO  L158              Benchmark]: Toolchain (without parser) took 60616.89ms. Allocated memory was 174.1MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 118.7MB in the beginning and 1.0GB in the end (delta: -887.3MB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB.
[2023-12-16 19:01:08,531 INFO  L158              Benchmark]: CDTParser took 0.09ms. Allocated memory is still 174.1MB. Free memory was 125.9MB in the beginning and 125.8MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 19:01:08,532 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 889.85ms. Allocated memory was 174.1MB in the beginning and 228.6MB in the end (delta: 54.5MB). Free memory was 118.4MB in the beginning and 154.4MB in the end (delta: -36.0MB). Peak memory consumption was 120.3MB. Max. memory is 8.0GB.
[2023-12-16 19:01:08,532 INFO  L158              Benchmark]: Boogie Procedure Inliner took 765.06ms. Allocated memory was 228.6MB in the beginning and 457.2MB in the end (delta: 228.6MB). Free memory was 154.4MB in the beginning and 228.4MB in the end (delta: -73.9MB). Peak memory consumption was 187.7MB. Max. memory is 8.0GB.
[2023-12-16 19:01:08,532 INFO  L158              Benchmark]: Boogie Preprocessor took 1189.23ms. Allocated memory was 457.2MB in the beginning and 914.4MB in the end (delta: 457.2MB). Free memory was 228.4MB in the beginning and 641.0MB in the end (delta: -412.6MB). Peak memory consumption was 91.2MB. Max. memory is 8.0GB.
[2023-12-16 19:01:08,532 INFO  L158              Benchmark]: RCFGBuilder took 5654.10ms. Allocated memory was 914.4MB in the beginning and 1.8GB in the end (delta: 914.4MB). Free memory was 641.0MB in the beginning and 1.4GB in the end (delta: -760.2MB). Peak memory consumption was 286.3MB. Max. memory is 8.0GB.
[2023-12-16 19:01:08,532 INFO  L158              Benchmark]: TraceAbstraction took 52111.91ms. Allocated memory was 1.8GB in the beginning and 3.2GB in the end (delta: 1.4GB). Free memory was 1.4GB in the beginning and 1.0GB in the end (delta: 394.2MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB.
[2023-12-16 19:01:08,533 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.09ms. Allocated memory is still 174.1MB. Free memory was 125.9MB in the beginning and 125.8MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 889.85ms. Allocated memory was 174.1MB in the beginning and 228.6MB in the end (delta: 54.5MB). Free memory was 118.4MB in the beginning and 154.4MB in the end (delta: -36.0MB). Peak memory consumption was 120.3MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 765.06ms. Allocated memory was 228.6MB in the beginning and 457.2MB in the end (delta: 228.6MB). Free memory was 154.4MB in the beginning and 228.4MB in the end (delta: -73.9MB). Peak memory consumption was 187.7MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 1189.23ms. Allocated memory was 457.2MB in the beginning and 914.4MB in the end (delta: 457.2MB). Free memory was 228.4MB in the beginning and 641.0MB in the end (delta: -412.6MB). Peak memory consumption was 91.2MB. Max. memory is 8.0GB.
 * RCFGBuilder took 5654.10ms. Allocated memory was 914.4MB in the beginning and 1.8GB in the end (delta: 914.4MB). Free memory was 641.0MB in the beginning and 1.4GB in the end (delta: -760.2MB). Peak memory consumption was 286.3MB. Max. memory is 8.0GB.
 * TraceAbstraction took 52111.91ms. Allocated memory was 1.8GB in the beginning and 3.2GB in the end (delta: 1.4GB). Free memory was 1.4GB in the beginning and 1.0GB in the end (delta: 394.2MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (3478states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (5097 states constructed, input type IntersectNwa).
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 3071 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.1s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96590 SdHoareTripleChecker+Valid, 16.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96590 mSDsluCounter, 254438 SdHoareTripleChecker+Invalid, 13.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163095 mSDsCounter, 1183 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26415 IncrementalHoareTripleChecker+Invalid, 27598 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1183 mSolverCounterUnsat, 91343 mSDtfsCounter, 26415 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33725 GetRequests, 33646 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3478occurred in iteration=13, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 26429 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.3s SsaConstructionTime, 12.7s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 22010 NumberOfCodeBlocks, 22010 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 35475 ConstructedInterpolants, 0 QuantifiedInterpolants, 40654 SizeOfPredicates, 28 NumberOfNonLiveVariables, 88728 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 2574/3960 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown