./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 0e0057cc
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 898d7b618f196c5eb70296c5f5d6a707cabf539a50b6f360f28b0625f181d4ff
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-29 02:20:40,874 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-29 02:20:40,940 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf
[2023-11-29 02:20:40,945 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-29 02:20:40,945 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-29 02:20:40,967 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-29 02:20:40,968 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-29 02:20:40,968 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-29 02:20:40,969 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-29 02:20:40,969 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-29 02:20:40,970 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-29 02:20:40,970 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-29 02:20:40,971 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-29 02:20:40,971 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-29 02:20:40,972 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-29 02:20:40,972 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-29 02:20:40,973 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-29 02:20:40,973 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-29 02:20:40,974 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-29 02:20:40,974 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-29 02:20:40,975 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-29 02:20:40,976 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-29 02:20:40,976 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-29 02:20:40,976 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-29 02:20:40,977 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-29 02:20:40,977 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-29 02:20:40,978 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-29 02:20:40,978 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-29 02:20:40,979 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-29 02:20:40,979 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-29 02:20:40,979 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-29 02:20:40,980 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-29 02:20:40,980 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-29 02:20:40,981 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-29 02:20:40,981 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-29 02:20:40,981 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-29 02:20:40,981 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-29 02:20:40,982 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-29 02:20:40,982 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-29 02:20:40,982 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/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: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 898d7b618f196c5eb70296c5f5d6a707cabf539a50b6f360f28b0625f181d4ff
[2023-11-29 02:20:41,199 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-29 02:20:41,229 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-29 02:20:41,231 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-29 02:20:41,233 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-29 02:20:41,233 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-29 02:20:41,234 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-back-serstep.c
[2023-11-29 02:20:43,931 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-29 02:20:44,307 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-29 02:20:44,307 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-back-serstep.c
[2023-11-29 02:20:44,329 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/data/910d23c61/fbd7cd16e66b4f1b802982cf607cf7c0/FLAGc81245560
[2023-11-29 02:20:44,344 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/data/910d23c61/fbd7cd16e66b4f1b802982cf607cf7c0
[2023-11-29 02:20:44,346 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-29 02:20:44,348 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-29 02:20:44,349 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-29 02:20:44,349 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-29 02:20:44,355 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-29 02:20:44,355 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:20:44" (1/1) ...
[2023-11-29 02:20:44,356 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d366a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:44, skipping insertion in model container
[2023-11-29 02:20:44,357 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:20:44" (1/1) ...
[2023-11-29 02:20:44,443 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-29 02:20:44,630 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-back-serstep.c[1175,1188]
[2023-11-29 02:20:45,119 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-29 02:20:45,127 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-29 02:20:45,137 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-back-serstep.c[1175,1188]
[2023-11-29 02:20:45,430 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-29 02:20:45,444 INFO  L206         MainTranslator]: Completed translation
[2023-11-29 02:20:45,445 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45 WrapperNode
[2023-11-29 02:20:45,445 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-29 02:20:45,446 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-29 02:20:45,446 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-29 02:20:45,446 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-29 02:20:45,453 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:45,546 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:46,841 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 17131
[2023-11-29 02:20:46,841 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-29 02:20:46,842 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-29 02:20:46,842 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-29 02:20:46,842 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-29 02:20:46,851 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:46,851 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:47,207 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:47,495 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].
[2023-11-29 02:20:47,496 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:47,496 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:47,825 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:47,914 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:47,992 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:48,046 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:48,362 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-29 02:20:48,363 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-29 02:20:48,364 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-29 02:20:48,364 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-29 02:20:48,365 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (1/1) ...
[2023-11-29 02:20:48,370 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-29 02:20:48,380 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/z3
[2023-11-29 02:20:48,390 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-29 02:20:48,392 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-29 02:20:48,424 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-29 02:20:48,425 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-29 02:20:48,425 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-29 02:20:48,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-29 02:20:49,217 INFO  L241             CfgBuilder]: Building ICFG
[2023-11-29 02:20:49,220 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-29 02:20:58,239 INFO  L282             CfgBuilder]: Performing block encoding
[2023-11-29 02:20:58,477 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-29 02:20:58,478 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-29 02:20:58,480 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:20:58 BoogieIcfgContainer
[2023-11-29 02:20:58,480 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-29 02:20:58,484 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-29 02:20:58,484 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-29 02:20:58,487 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-29 02:20:58,488 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:20:44" (1/3) ...
[2023-11-29 02:20:58,488 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ce6ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:20:58, skipping insertion in model container
[2023-11-29 02:20:58,489 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:45" (2/3) ...
[2023-11-29 02:20:58,489 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ce6ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:20:58, skipping insertion in model container
[2023-11-29 02:20:58,489 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:20:58" (3/3) ...
[2023-11-29 02:20:58,491 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.7.prop1-back-serstep.c
[2023-11-29 02:20:58,510 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-29 02:20:58,510 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-29 02:20:58,639 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-29 02:20:58,646 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;@19a82e8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-29 02:20:58,646 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-29 02:20:58,663 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3797 states, 3795 states have (on average 1.6666666666666667) internal successors, (6325), 3796 states have internal predecessors, (6325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:20:58,705 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 553
[2023-11-29 02:20:58,706 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:20:58,707 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:20:58,708 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:20:58,713 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:20:58,714 INFO  L85        PathProgramCache]: Analyzing trace with hash -1625976131, now seen corresponding path program 1 times
[2023-11-29 02:20:58,722 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:20:58,723 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726822038]
[2023-11-29 02:20:58,723 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:20:58,723 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:20:59,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:21:00,860 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 02:21:00,860 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:21:00,861 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726822038]
[2023-11-29 02:21:00,861 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726822038] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:21:00,862 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:21:00,862 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:21:00,863 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098525451]
[2023-11-29 02:21:00,864 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:21:00,869 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:21:00,870 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:21:00,896 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:21:00,896 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:21:00,904 INFO  L87              Difference]: Start difference. First operand  has 3797 states, 3795 states have (on average 1.6666666666666667) internal successors, (6325), 3796 states have internal predecessors, (6325), 0 states have call successors, (0), 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 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:01,114 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:21:01,115 INFO  L93              Difference]: Finished difference Result 7401 states and 12331 transitions.
[2023-11-29 02:21:01,116 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:21:01,117 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 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 552
[2023-11-29 02:21:01,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:21:01,150 INFO  L225             Difference]: With dead ends: 7401
[2023-11-29 02:21:01,150 INFO  L226             Difference]: Without dead ends: 3797
[2023-11-29 02:21:01,160 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
[2023-11-29 02:21:01,163 INFO  L413           NwaCegarLoop]: 6318 mSDtfsCounter, 1 mSDsluCounter, 12631 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 18949 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:21:01,164 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 18949 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:21:01,186 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3797 states.
[2023-11-29 02:21:01,285 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3797 to 3797.
[2023-11-29 02:21:01,294 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3797 states, 3796 states have (on average 1.6657007376185458) internal successors, (6323), 3796 states have internal predecessors, (6323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:01,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 6323 transitions.
[2023-11-29 02:21:01,310 INFO  L78                 Accepts]: Start accepts. Automaton has 3797 states and 6323 transitions. Word has length 552
[2023-11-29 02:21:01,311 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:21:01,311 INFO  L495      AbstractCegarLoop]: Abstraction has 3797 states and 6323 transitions.
[2023-11-29 02:21:01,312 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:01,312 INFO  L276                IsEmpty]: Start isEmpty. Operand 3797 states and 6323 transitions.
[2023-11-29 02:21:01,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 554
[2023-11-29 02:21:01,323 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:21:01,324 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:21:01,324 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-29 02:21:01,324 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:21:01,324 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:21:01,325 INFO  L85        PathProgramCache]: Analyzing trace with hash 1136135309, now seen corresponding path program 1 times
[2023-11-29 02:21:01,325 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:21:01,325 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95368107]
[2023-11-29 02:21:01,326 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:21:01,326 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:21:01,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:21:02,507 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 02:21:02,507 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:21:02,508 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95368107]
[2023-11-29 02:21:02,508 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95368107] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:21:02,508 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:21:02,508 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:21:02,509 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513287449]
[2023-11-29 02:21:02,509 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:21:02,511 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:21:02,511 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:21:02,513 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:21:02,513 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:21:02,513 INFO  L87              Difference]: Start difference. First operand 3797 states and 6323 transitions. Second operand  has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:02,701 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:21:02,701 INFO  L93              Difference]: Finished difference Result 7404 states and 12329 transitions.
[2023-11-29 02:21:02,702 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:21:02,702 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 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 553
[2023-11-29 02:21:02,704 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:21:02,724 INFO  L225             Difference]: With dead ends: 7404
[2023-11-29 02:21:02,724 INFO  L226             Difference]: Without dead ends: 3800
[2023-11-29 02:21:02,728 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
[2023-11-29 02:21:02,730 INFO  L413           NwaCegarLoop]: 6318 mSDtfsCounter, 1 mSDsluCounter, 12629 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 18947 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
[2023-11-29 02:21:02,730 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 18947 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:21:02,738 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3800 states.
[2023-11-29 02:21:02,798 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3800 to 3799.
[2023-11-29 02:21:02,807 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3799 states, 3798 states have (on average 1.6653501843075302) internal successors, (6325), 3798 states have internal predecessors, (6325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:02,823 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3799 states to 3799 states and 6325 transitions.
[2023-11-29 02:21:02,823 INFO  L78                 Accepts]: Start accepts. Automaton has 3799 states and 6325 transitions. Word has length 553
[2023-11-29 02:21:02,824 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:21:02,824 INFO  L495      AbstractCegarLoop]: Abstraction has 3799 states and 6325 transitions.
[2023-11-29 02:21:02,825 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:02,825 INFO  L276                IsEmpty]: Start isEmpty. Operand 3799 states and 6325 transitions.
[2023-11-29 02:21:02,836 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 555
[2023-11-29 02:21:02,836 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:21:02,837 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:21:02,837 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-29 02:21:02,838 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:21:02,838 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:21:02,838 INFO  L85        PathProgramCache]: Analyzing trace with hash 648239573, now seen corresponding path program 1 times
[2023-11-29 02:21:02,839 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:21:02,839 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373237118]
[2023-11-29 02:21:02,839 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:21:02,839 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:21:03,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:21:04,118 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 02:21:04,119 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:21:04,119 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373237118]
[2023-11-29 02:21:04,119 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373237118] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:21:04,119 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:21:04,120 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:21:04,120 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103135508]
[2023-11-29 02:21:04,120 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:21:04,121 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:21:04,122 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:21:04,123 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:21:04,123 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:21:04,124 INFO  L87              Difference]: Start difference. First operand 3799 states and 6325 transitions. Second operand  has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:04,441 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:21:04,442 INFO  L93              Difference]: Finished difference Result 11005 states and 18324 transitions.
[2023-11-29 02:21:04,442 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:21:04,443 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 0 states have call successors, (0), 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 554
[2023-11-29 02:21:04,444 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:21:04,473 INFO  L225             Difference]: With dead ends: 11005
[2023-11-29 02:21:04,473 INFO  L226             Difference]: Without dead ends: 7399
[2023-11-29 02:21:04,478 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
[2023-11-29 02:21:04,479 INFO  L413           NwaCegarLoop]: 7358 mSDtfsCounter, 5991 mSDsluCounter, 13667 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5991 SdHoareTripleChecker+Valid, 21025 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
[2023-11-29 02:21:04,480 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5991 Valid, 21025 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:21:04,490 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7399 states.
[2023-11-29 02:21:04,557 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7399 to 3801.
[2023-11-29 02:21:04,564 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3801 states, 3800 states have (on average 1.665) internal successors, (6327), 3800 states have internal predecessors, (6327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:04,579 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3801 states to 3801 states and 6327 transitions.
[2023-11-29 02:21:04,580 INFO  L78                 Accepts]: Start accepts. Automaton has 3801 states and 6327 transitions. Word has length 554
[2023-11-29 02:21:04,581 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:21:04,581 INFO  L495      AbstractCegarLoop]: Abstraction has 3801 states and 6327 transitions.
[2023-11-29 02:21:04,582 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:04,582 INFO  L276                IsEmpty]: Start isEmpty. Operand 3801 states and 6327 transitions.
[2023-11-29 02:21:04,593 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 556
[2023-11-29 02:21:04,593 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:21:04,594 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:21:04,594 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-29 02:21:04,595 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:21:04,595 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:21:04,596 INFO  L85        PathProgramCache]: Analyzing trace with hash 218712883, now seen corresponding path program 1 times
[2023-11-29 02:21:04,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:21:04,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112580379]
[2023-11-29 02:21:04,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:21:04,597 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:21:04,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:21:05,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 02:21:05,547 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:21:05,547 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112580379]
[2023-11-29 02:21:05,547 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112580379] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:21:05,548 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:21:05,548 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:21:05,548 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883394864]
[2023-11-29 02:21:05,548 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:21:05,549 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-29 02:21:05,549 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:21:05,550 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-29 02:21:05,550 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:21:05,551 INFO  L87              Difference]: Start difference. First operand 3801 states and 6327 transitions. Second operand  has 6 states, 6 states have (on average 92.5) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:05,976 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:21:05,976 INFO  L93              Difference]: Finished difference Result 11635 states and 19370 transitions.
[2023-11-29 02:21:05,977 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:21:05,977 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 92.5) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 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 555
[2023-11-29 02:21:05,979 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:21:06,024 INFO  L225             Difference]: With dead ends: 11635
[2023-11-29 02:21:06,024 INFO  L226             Difference]: Without dead ends: 8027
[2023-11-29 02:21:06,031 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
[2023-11-29 02:21:06,033 INFO  L413           NwaCegarLoop]: 7357 mSDtfsCounter, 24791 mSDsluCounter, 19983 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24791 SdHoareTripleChecker+Valid, 27340 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-29 02:21:06,033 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24791 Valid, 27340 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-29 02:21:06,047 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8027 states.
[2023-11-29 02:21:06,153 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8027 to 4425.
[2023-11-29 02:21:06,164 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4425 states, 4424 states have (on average 1.665235081374322) internal successors, (7367), 4424 states have internal predecessors, (7367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:06,176 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4425 states to 4425 states and 7367 transitions.
[2023-11-29 02:21:06,177 INFO  L78                 Accepts]: Start accepts. Automaton has 4425 states and 7367 transitions. Word has length 555
[2023-11-29 02:21:06,178 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:21:06,178 INFO  L495      AbstractCegarLoop]: Abstraction has 4425 states and 7367 transitions.
[2023-11-29 02:21:06,179 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 92.5) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:06,179 INFO  L276                IsEmpty]: Start isEmpty. Operand 4425 states and 7367 transitions.
[2023-11-29 02:21:06,264 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2957
[2023-11-29 02:21:06,264 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:21:06,266 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:21:06,266 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-29 02:21:06,267 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:21:06,267 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:21:06,268 INFO  L85        PathProgramCache]: Analyzing trace with hash -572020220, now seen corresponding path program 1 times
[2023-11-29 02:21:06,269 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:21:06,269 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73542235]
[2023-11-29 02:21:06,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:21:06,270 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:21:16,323 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:21:24,048 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 02:21:24,049 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:21:24,049 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73542235]
[2023-11-29 02:21:24,049 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73542235] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:21:24,049 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:21:24,050 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:21:24,050 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213136377]
[2023-11-29 02:21:24,050 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:21:24,054 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:21:24,054 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:21:24,057 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:21:24,057 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:21:24,059 INFO  L87              Difference]: Start difference. First operand 4425 states and 7367 transitions. Second operand  has 5 states, 5 states have (on average 591.2) internal successors, (2956), 5 states have internal predecessors, (2956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:27,819 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:21:27,819 INFO  L93              Difference]: Finished difference Result 11290 states and 18681 transitions.
[2023-11-29 02:21:27,820 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:21:27,820 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 591.2) internal successors, (2956), 5 states have internal predecessors, (2956), 0 states have call successors, (0), 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 2956
[2023-11-29 02:21:27,825 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:21:27,861 INFO  L225             Difference]: With dead ends: 11290
[2023-11-29 02:21:27,861 INFO  L226             Difference]: Without dead ends: 4425
[2023-11-29 02:21:27,868 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:21:27,869 INFO  L413           NwaCegarLoop]: 6639 mSDtfsCounter, 4937 mSDsluCounter, 16077 mSDsCounter, 0 mSdLazyCounter, 3903 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4937 SdHoareTripleChecker+Valid, 22716 SdHoareTripleChecker+Invalid, 4250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 3903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2023-11-29 02:21:27,869 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4937 Valid, 22716 Invalid, 4250 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [347 Valid, 3903 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2023-11-29 02:21:27,875 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4425 states.
[2023-11-29 02:21:27,926 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4425 to 4425.
[2023-11-29 02:21:27,931 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4425 states, 4424 states have (on average 1.6650090415913201) internal successors, (7366), 4424 states have internal predecessors, (7366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:27,936 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4425 states to 4425 states and 7366 transitions.
[2023-11-29 02:21:27,936 INFO  L78                 Accepts]: Start accepts. Automaton has 4425 states and 7366 transitions. Word has length 2956
[2023-11-29 02:21:27,937 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:21:27,937 INFO  L495      AbstractCegarLoop]: Abstraction has 4425 states and 7366 transitions.
[2023-11-29 02:21:27,938 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 591.2) internal successors, (2956), 5 states have internal predecessors, (2956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:27,938 INFO  L276                IsEmpty]: Start isEmpty. Operand 4425 states and 7366 transitions.
[2023-11-29 02:21:27,978 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2958
[2023-11-29 02:21:27,978 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:21:27,980 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:21:27,980 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-29 02:21:27,980 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:21:27,981 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:21:27,981 INFO  L85        PathProgramCache]: Analyzing trace with hash -712390740, now seen corresponding path program 1 times
[2023-11-29 02:21:27,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:21:27,982 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131990912]
[2023-11-29 02:21:27,982 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:21:27,982 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:21:31,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:21:37,669 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked.
[2023-11-29 02:21:37,669 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:21:37,669 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131990912]
[2023-11-29 02:21:37,669 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131990912] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:21:37,669 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:21:37,670 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:21:37,670 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807480792]
[2023-11-29 02:21:37,670 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:21:37,672 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:21:37,672 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:21:37,674 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:21:37,674 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:21:37,675 INFO  L87              Difference]: Start difference. First operand 4425 states and 7366 transitions. Second operand  has 5 states, 5 states have (on average 508.8) internal successors, (2544), 5 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:37,895 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:21:37,895 INFO  L93              Difference]: Finished difference Result 11635 states and 19367 transitions.
[2023-11-29 02:21:37,896 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:21:37,896 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 508.8) internal successors, (2544), 5 states have internal predecessors, (2544), 0 states have call successors, (0), 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 2957
[2023-11-29 02:21:37,901 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:21:37,915 INFO  L225             Difference]: With dead ends: 11635
[2023-11-29 02:21:37,915 INFO  L226             Difference]: Without dead ends: 8026
[2023-11-29 02:21:37,921 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:21:37,922 INFO  L413           NwaCegarLoop]: 7352 mSDtfsCounter, 5987 mSDsluCounter, 21009 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5987 SdHoareTripleChecker+Valid, 28361 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:21:37,923 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5987 Valid, 28361 Invalid, 27 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:21:37,935 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8026 states.
[2023-11-29 02:21:38,023 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8026 to 4427.
[2023-11-29 02:21:38,029 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4427 states, 4426 states have (on average 1.6647085404428377) internal successors, (7368), 4426 states have internal predecessors, (7368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:38,037 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 7368 transitions.
[2023-11-29 02:21:38,037 INFO  L78                 Accepts]: Start accepts. Automaton has 4427 states and 7368 transitions. Word has length 2957
[2023-11-29 02:21:38,040 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:21:38,040 INFO  L495      AbstractCegarLoop]: Abstraction has 4427 states and 7368 transitions.
[2023-11-29 02:21:38,041 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 508.8) internal successors, (2544), 5 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:38,041 INFO  L276                IsEmpty]: Start isEmpty. Operand 4427 states and 7368 transitions.
[2023-11-29 02:21:38,141 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2959
[2023-11-29 02:21:38,141 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:21:38,144 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-11-29 02:21:38,144 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-29 02:21:38,144 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:21:38,144 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:21:38,146 INFO  L85        PathProgramCache]: Analyzing trace with hash 900749526, now seen corresponding path program 1 times
[2023-11-29 02:21:38,146 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:21:38,146 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736609566]
[2023-11-29 02:21:38,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:21:38,146 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:21:40,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:21:46,948 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked.
[2023-11-29 02:21:46,949 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:21:46,949 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736609566]
[2023-11-29 02:21:46,949 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736609566] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:21:46,949 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:21:46,949 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:21:46,949 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040517910]
[2023-11-29 02:21:46,950 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:21:46,952 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:21:46,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:21:46,954 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:21:46,954 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:21:46,955 INFO  L87              Difference]: Start difference. First operand 4427 states and 7368 transitions. Second operand  has 4 states, 4 states have (on average 636.75) internal successors, (2547), 4 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:47,192 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:21:47,193 INFO  L93              Difference]: Finished difference Result 11641 states and 19373 transitions.
[2023-11-29 02:21:47,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:21:47,194 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 636.75) internal successors, (2547), 4 states have internal predecessors, (2547), 0 states have call successors, (0), 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 2958
[2023-11-29 02:21:47,197 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:21:47,207 INFO  L225             Difference]: With dead ends: 11641
[2023-11-29 02:21:47,208 INFO  L226             Difference]: Without dead ends: 8027
[2023-11-29 02:21:47,212 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
[2023-11-29 02:21:47,213 INFO  L413           NwaCegarLoop]: 7347 mSDtfsCounter, 5984 mSDsluCounter, 13655 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5984 SdHoareTripleChecker+Valid, 21002 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-29 02:21:47,213 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5984 Valid, 21002 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-29 02:21:47,222 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8027 states.
[2023-11-29 02:21:47,276 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8027 to 4429.
[2023-11-29 02:21:47,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4429 states, 4428 states have (on average 1.6644083107497742) internal successors, (7370), 4428 states have internal predecessors, (7370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:47,287 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4429 states to 4429 states and 7370 transitions.
[2023-11-29 02:21:47,287 INFO  L78                 Accepts]: Start accepts. Automaton has 4429 states and 7370 transitions. Word has length 2958
[2023-11-29 02:21:47,289 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:21:47,289 INFO  L495      AbstractCegarLoop]: Abstraction has 4429 states and 7370 transitions.
[2023-11-29 02:21:47,290 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 636.75) internal successors, (2547), 4 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:47,290 INFO  L276                IsEmpty]: Start isEmpty. Operand 4429 states and 7370 transitions.
[2023-11-29 02:21:47,331 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2960
[2023-11-29 02:21:47,331 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:21:47,333 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:21:47,333 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-29 02:21:47,333 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:21:47,334 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:21:47,335 INFO  L85        PathProgramCache]: Analyzing trace with hash -1913787952, now seen corresponding path program 1 times
[2023-11-29 02:21:47,335 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:21:47,335 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602407433]
[2023-11-29 02:21:47,336 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:21:47,336 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:21:49,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:21:55,775 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked.
[2023-11-29 02:21:55,776 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:21:55,776 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602407433]
[2023-11-29 02:21:55,776 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602407433] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:21:55,776 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:21:55,777 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:21:55,777 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357717591]
[2023-11-29 02:21:55,777 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:21:55,780 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:21:55,780 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:21:55,783 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:21:55,784 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:21:55,785 INFO  L87              Difference]: Start difference. First operand 4429 states and 7370 transitions. Second operand  has 4 states, 4 states have (on average 637.5) internal successors, (2550), 4 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:55,934 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:21:55,934 INFO  L93              Difference]: Finished difference Result 11647 states and 19379 transitions.
[2023-11-29 02:21:55,935 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:21:55,936 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 637.5) internal successors, (2550), 4 states have internal predecessors, (2550), 0 states have call successors, (0), 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 2959
[2023-11-29 02:21:55,939 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:21:55,951 INFO  L225             Difference]: With dead ends: 11647
[2023-11-29 02:21:55,951 INFO  L226             Difference]: Without dead ends: 8028
[2023-11-29 02:21:55,957 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
[2023-11-29 02:21:55,957 INFO  L413           NwaCegarLoop]: 7342 mSDtfsCounter, 5981 mSDsluCounter, 13650 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5981 SdHoareTripleChecker+Valid, 20992 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
[2023-11-29 02:21:55,958 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5981 Valid, 20992 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:21:55,968 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8028 states.
[2023-11-29 02:21:56,039 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8028 to 4431.
[2023-11-29 02:21:56,046 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4431 states, 4430 states have (on average 1.6641083521444695) internal successors, (7372), 4430 states have internal predecessors, (7372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:56,052 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4431 states to 4431 states and 7372 transitions.
[2023-11-29 02:21:56,053 INFO  L78                 Accepts]: Start accepts. Automaton has 4431 states and 7372 transitions. Word has length 2959
[2023-11-29 02:21:56,055 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:21:56,056 INFO  L495      AbstractCegarLoop]: Abstraction has 4431 states and 7372 transitions.
[2023-11-29 02:21:56,057 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 637.5) internal successors, (2550), 4 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:21:56,057 INFO  L276                IsEmpty]: Start isEmpty. Operand 4431 states and 7372 transitions.
[2023-11-29 02:21:56,125 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2961
[2023-11-29 02:21:56,125 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:21:56,127 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:21:56,127 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-29 02:21:56,127 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:21:56,128 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:21:56,129 INFO  L85        PathProgramCache]: Analyzing trace with hash -897703634, now seen corresponding path program 1 times
[2023-11-29 02:21:56,129 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:21:56,129 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965905311]
[2023-11-29 02:21:56,130 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:21:56,130 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:21:58,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:22:04,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked.
[2023-11-29 02:22:04,945 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:22:04,945 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965905311]
[2023-11-29 02:22:04,945 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965905311] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:22:04,945 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:22:04,946 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:22:04,946 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893084018]
[2023-11-29 02:22:04,946 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:22:04,949 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:22:04,949 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:22:04,952 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:22:04,952 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:22:04,953 INFO  L87              Difference]: Start difference. First operand 4431 states and 7372 transitions. Second operand  has 4 states, 4 states have (on average 638.25) internal successors, (2553), 4 states have internal predecessors, (2553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:05,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:22:05,093 INFO  L93              Difference]: Finished difference Result 11653 states and 19385 transitions.
[2023-11-29 02:22:05,093 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:22:05,094 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 638.25) internal successors, (2553), 4 states have internal predecessors, (2553), 0 states have call successors, (0), 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 2960
[2023-11-29 02:22:05,097 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:22:05,111 INFO  L225             Difference]: With dead ends: 11653
[2023-11-29 02:22:05,111 INFO  L226             Difference]: Without dead ends: 8029
[2023-11-29 02:22:05,117 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
[2023-11-29 02:22:05,117 INFO  L413           NwaCegarLoop]: 7337 mSDtfsCounter, 5978 mSDsluCounter, 13645 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5978 SdHoareTripleChecker+Valid, 20982 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
[2023-11-29 02:22:05,118 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5978 Valid, 20982 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:22:05,126 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8029 states.
[2023-11-29 02:22:05,190 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8029 to 4433.
[2023-11-29 02:22:05,196 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4433 states, 4432 states have (on average 1.663808664259928) internal successors, (7374), 4432 states have internal predecessors, (7374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:05,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 7374 transitions.
[2023-11-29 02:22:05,203 INFO  L78                 Accepts]: Start accepts. Automaton has 4433 states and 7374 transitions. Word has length 2960
[2023-11-29 02:22:05,205 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:22:05,206 INFO  L495      AbstractCegarLoop]: Abstraction has 4433 states and 7374 transitions.
[2023-11-29 02:22:05,207 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 638.25) internal successors, (2553), 4 states have internal predecessors, (2553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:05,207 INFO  L276                IsEmpty]: Start isEmpty. Operand 4433 states and 7374 transitions.
[2023-11-29 02:22:05,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2962
[2023-11-29 02:22:05,324 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:22:05,326 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:22:05,326 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-29 02:22:05,326 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:22:05,327 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:22:05,328 INFO  L85        PathProgramCache]: Analyzing trace with hash -719642058, now seen corresponding path program 1 times
[2023-11-29 02:22:05,328 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:22:05,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29222443]
[2023-11-29 02:22:05,329 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:22:05,329 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:22:08,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:22:14,264 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked.
[2023-11-29 02:22:14,264 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:22:14,264 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29222443]
[2023-11-29 02:22:14,264 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29222443] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:22:14,264 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:22:14,265 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:22:14,266 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296415471]
[2023-11-29 02:22:14,266 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:22:14,270 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:22:14,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:22:14,274 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:22:14,274 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:22:14,275 INFO  L87              Difference]: Start difference. First operand 4433 states and 7374 transitions. Second operand  has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:14,450 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:22:14,450 INFO  L93              Difference]: Finished difference Result 11659 states and 19391 transitions.
[2023-11-29 02:22:14,451 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:22:14,451 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 0 states have call successors, (0), 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 2961
[2023-11-29 02:22:14,454 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:22:14,464 INFO  L225             Difference]: With dead ends: 11659
[2023-11-29 02:22:14,465 INFO  L226             Difference]: Without dead ends: 8030
[2023-11-29 02:22:14,469 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
[2023-11-29 02:22:14,469 INFO  L413           NwaCegarLoop]: 7332 mSDtfsCounter, 5975 mSDsluCounter, 13640 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5975 SdHoareTripleChecker+Valid, 20972 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
[2023-11-29 02:22:14,470 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5975 Valid, 20972 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:22:14,478 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8030 states.
[2023-11-29 02:22:14,536 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8030 to 4435.
[2023-11-29 02:22:14,543 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4435 states, 4434 states have (on average 1.6635092467298151) internal successors, (7376), 4434 states have internal predecessors, (7376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:14,549 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4435 states to 4435 states and 7376 transitions.
[2023-11-29 02:22:14,549 INFO  L78                 Accepts]: Start accepts. Automaton has 4435 states and 7376 transitions. Word has length 2961
[2023-11-29 02:22:14,552 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:22:14,552 INFO  L495      AbstractCegarLoop]: Abstraction has 4435 states and 7376 transitions.
[2023-11-29 02:22:14,553 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:14,553 INFO  L276                IsEmpty]: Start isEmpty. Operand 4435 states and 7376 transitions.
[2023-11-29 02:22:14,621 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2963
[2023-11-29 02:22:14,621 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:22:14,623 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:22:14,623 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-29 02:22:14,623 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:22:14,624 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:22:14,625 INFO  L85        PathProgramCache]: Analyzing trace with hash -1307579448, now seen corresponding path program 1 times
[2023-11-29 02:22:14,625 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:22:14,625 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24758702]
[2023-11-29 02:22:14,626 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:22:14,626 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:22:17,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:22:23,322 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked.
[2023-11-29 02:22:23,322 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:22:23,322 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24758702]
[2023-11-29 02:22:23,322 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24758702] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:22:23,322 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:22:23,323 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:22:23,323 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553125303]
[2023-11-29 02:22:23,323 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:22:23,325 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:22:23,325 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:22:23,327 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:22:23,327 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:22:23,327 INFO  L87              Difference]: Start difference. First operand 4435 states and 7376 transitions. Second operand  has 4 states, 4 states have (on average 639.75) internal successors, (2559), 4 states have internal predecessors, (2559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:23,453 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:22:23,453 INFO  L93              Difference]: Finished difference Result 11665 states and 19397 transitions.
[2023-11-29 02:22:23,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:22:23,454 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 639.75) internal successors, (2559), 4 states have internal predecessors, (2559), 0 states have call successors, (0), 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 2962
[2023-11-29 02:22:23,456 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:22:23,463 INFO  L225             Difference]: With dead ends: 11665
[2023-11-29 02:22:23,463 INFO  L226             Difference]: Without dead ends: 8031
[2023-11-29 02:22:23,467 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
[2023-11-29 02:22:23,467 INFO  L413           NwaCegarLoop]: 7327 mSDtfsCounter, 5972 mSDsluCounter, 13635 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5972 SdHoareTripleChecker+Valid, 20962 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
[2023-11-29 02:22:23,468 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5972 Valid, 20962 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:22:23,474 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8031 states.
[2023-11-29 02:22:23,517 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8031 to 4437.
[2023-11-29 02:22:23,522 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4437 states, 4436 states have (on average 1.663210099188458) internal successors, (7378), 4436 states have internal predecessors, (7378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:23,526 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 7378 transitions.
[2023-11-29 02:22:23,526 INFO  L78                 Accepts]: Start accepts. Automaton has 4437 states and 7378 transitions. Word has length 2962
[2023-11-29 02:22:23,528 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:22:23,528 INFO  L495      AbstractCegarLoop]: Abstraction has 4437 states and 7378 transitions.
[2023-11-29 02:22:23,528 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 639.75) internal successors, (2559), 4 states have internal predecessors, (2559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:23,529 INFO  L276                IsEmpty]: Start isEmpty. Operand 4437 states and 7378 transitions.
[2023-11-29 02:22:23,567 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2964
[2023-11-29 02:22:23,567 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:22:23,569 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:22:23,569 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-11-29 02:22:23,569 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:22:23,569 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:22:23,570 INFO  L85        PathProgramCache]: Analyzing trace with hash -1126294694, now seen corresponding path program 1 times
[2023-11-29 02:22:23,570 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:22:23,570 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981821577]
[2023-11-29 02:22:23,570 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:22:23,570 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:22:26,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:22:32,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked.
[2023-11-29 02:22:32,117 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:22:32,117 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981821577]
[2023-11-29 02:22:32,117 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981821577] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:22:32,117 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:22:32,117 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:22:32,118 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428281749]
[2023-11-29 02:22:32,118 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:22:32,119 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:22:32,119 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:22:32,121 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:22:32,121 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:22:32,122 INFO  L87              Difference]: Start difference. First operand 4437 states and 7378 transitions. Second operand  has 4 states, 4 states have (on average 640.5) internal successors, (2562), 4 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:32,284 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:22:32,284 INFO  L93              Difference]: Finished difference Result 11671 states and 19403 transitions.
[2023-11-29 02:22:32,284 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:22:32,285 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 640.5) internal successors, (2562), 4 states have internal predecessors, (2562), 0 states have call successors, (0), 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 2963
[2023-11-29 02:22:32,287 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:22:32,292 INFO  L225             Difference]: With dead ends: 11671
[2023-11-29 02:22:32,292 INFO  L226             Difference]: Without dead ends: 8032
[2023-11-29 02:22:32,296 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
[2023-11-29 02:22:32,296 INFO  L413           NwaCegarLoop]: 7322 mSDtfsCounter, 5969 mSDsluCounter, 13630 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5969 SdHoareTripleChecker+Valid, 20952 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
[2023-11-29 02:22:32,297 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5969 Valid, 20952 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:22:32,303 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8032 states.
[2023-11-29 02:22:32,344 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8032 to 4439.
[2023-11-29 02:22:32,349 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4439 states, 4438 states have (on average 1.6629112212708428) internal successors, (7380), 4438 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:32,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 7380 transitions.
[2023-11-29 02:22:32,355 INFO  L78                 Accepts]: Start accepts. Automaton has 4439 states and 7380 transitions. Word has length 2963
[2023-11-29 02:22:32,357 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:22:32,357 INFO  L495      AbstractCegarLoop]: Abstraction has 4439 states and 7380 transitions.
[2023-11-29 02:22:32,358 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 640.5) internal successors, (2562), 4 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:32,358 INFO  L276                IsEmpty]: Start isEmpty. Operand 4439 states and 7380 transitions.
[2023-11-29 02:22:32,397 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2965
[2023-11-29 02:22:32,397 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:22:32,398 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:22:32,398 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-11-29 02:22:32,399 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:22:32,399 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:22:32,400 INFO  L85        PathProgramCache]: Analyzing trace with hash -1543199968, now seen corresponding path program 1 times
[2023-11-29 02:22:32,400 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:22:32,400 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599517914]
[2023-11-29 02:22:32,400 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:22:32,400 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:22:36,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:22:41,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked.
[2023-11-29 02:22:41,820 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:22:41,820 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599517914]
[2023-11-29 02:22:41,820 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599517914] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:22:41,820 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:22:41,821 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:22:41,821 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955186888]
[2023-11-29 02:22:41,821 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:22:41,824 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:22:41,824 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:22:41,826 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:22:41,826 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:22:41,826 INFO  L87              Difference]: Start difference. First operand 4439 states and 7380 transitions. Second operand  has 5 states, 5 states have (on average 513.0) internal successors, (2565), 5 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:42,019 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:22:42,019 INFO  L93              Difference]: Finished difference Result 11677 states and 19409 transitions.
[2023-11-29 02:22:42,020 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:22:42,020 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 513.0) internal successors, (2565), 5 states have internal predecessors, (2565), 0 states have call successors, (0), 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 2964
[2023-11-29 02:22:42,023 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:22:42,028 INFO  L225             Difference]: With dead ends: 11677
[2023-11-29 02:22:42,029 INFO  L226             Difference]: Without dead ends: 8033
[2023-11-29 02:22:42,032 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:22:42,033 INFO  L413           NwaCegarLoop]: 7317 mSDtfsCounter, 5966 mSDsluCounter, 20939 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5966 SdHoareTripleChecker+Valid, 28256 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:22:42,033 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5966 Valid, 28256 Invalid, 27 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:22:42,040 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8033 states.
[2023-11-29 02:22:42,084 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8033 to 4441.
[2023-11-29 02:22:42,089 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4441 states, 4440 states have (on average 1.6626126126126126) internal successors, (7382), 4440 states have internal predecessors, (7382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:42,093 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4441 states to 4441 states and 7382 transitions.
[2023-11-29 02:22:42,093 INFO  L78                 Accepts]: Start accepts. Automaton has 4441 states and 7382 transitions. Word has length 2964
[2023-11-29 02:22:42,095 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:22:42,095 INFO  L495      AbstractCegarLoop]: Abstraction has 4441 states and 7382 transitions.
[2023-11-29 02:22:42,096 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 513.0) internal successors, (2565), 5 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:42,096 INFO  L276                IsEmpty]: Start isEmpty. Operand 4441 states and 7382 transitions.
[2023-11-29 02:22:42,173 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2966
[2023-11-29 02:22:42,173 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:22:42,176 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:22:42,176 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-11-29 02:22:42,176 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:22:42,177 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:22:42,178 INFO  L85        PathProgramCache]: Analyzing trace with hash 1555666880, now seen corresponding path program 1 times
[2023-11-29 02:22:42,178 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:22:42,179 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736125059]
[2023-11-29 02:22:42,179 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:22:42,179 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:22:45,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:22:52,332 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked.
[2023-11-29 02:22:52,333 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:22:52,333 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736125059]
[2023-11-29 02:22:52,333 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736125059] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:22:52,333 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:22:52,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:22:52,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648476843]
[2023-11-29 02:22:52,334 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:22:52,337 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:22:52,337 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:22:52,339 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:22:52,339 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:22:52,340 INFO  L87              Difference]: Start difference. First operand 4441 states and 7382 transitions. Second operand  has 5 states, 5 states have (on average 513.6) internal successors, (2568), 5 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:52,530 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:22:52,530 INFO  L93              Difference]: Finished difference Result 11683 states and 19415 transitions.
[2023-11-29 02:22:52,530 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:22:52,531 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 513.6) internal successors, (2568), 5 states have internal predecessors, (2568), 0 states have call successors, (0), 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 2965
[2023-11-29 02:22:52,534 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:22:52,540 INFO  L225             Difference]: With dead ends: 11683
[2023-11-29 02:22:52,540 INFO  L226             Difference]: Without dead ends: 8034
[2023-11-29 02:22:52,544 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:22:52,545 INFO  L413           NwaCegarLoop]: 7312 mSDtfsCounter, 5963 mSDsluCounter, 20929 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5963 SdHoareTripleChecker+Valid, 28241 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:22:52,545 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5963 Valid, 28241 Invalid, 27 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:22:52,553 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8034 states.
[2023-11-29 02:22:52,613 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8034 to 4443.
[2023-11-29 02:22:52,618 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4443 states, 4442 states have (on average 1.6623142728500675) internal successors, (7384), 4442 states have internal predecessors, (7384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:52,625 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 7384 transitions.
[2023-11-29 02:22:52,625 INFO  L78                 Accepts]: Start accepts. Automaton has 4443 states and 7384 transitions. Word has length 2965
[2023-11-29 02:22:52,627 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:22:52,627 INFO  L495      AbstractCegarLoop]: Abstraction has 4443 states and 7384 transitions.
[2023-11-29 02:22:52,628 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 513.6) internal successors, (2568), 5 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:22:52,628 INFO  L276                IsEmpty]: Start isEmpty. Operand 4443 states and 7384 transitions.
[2023-11-29 02:22:52,672 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2967
[2023-11-29 02:22:52,672 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:22:52,676 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:22:52,676 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-11-29 02:22:52,676 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:22:52,676 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:22:52,677 INFO  L85        PathProgramCache]: Analyzing trace with hash -416200262, now seen corresponding path program 1 times
[2023-11-29 02:22:52,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:22:52,678 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288779525]
[2023-11-29 02:22:52,678 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:22:52,678 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:23:12,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:23:19,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 02:23:19,301 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:23:19,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288779525]
[2023-11-29 02:23:19,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288779525] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:23:19,301 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:23:19,301 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:23:19,302 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242012214]
[2023-11-29 02:23:19,302 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:23:19,305 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-29 02:23:19,305 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:23:19,307 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-29 02:23:19,308 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:23:19,309 INFO  L87              Difference]: Start difference. First operand 4443 states and 7384 transitions. Second operand  has 6 states, 6 states have (on average 494.3333333333333) internal successors, (2966), 5 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:21,364 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:23:21,364 INFO  L93              Difference]: Finished difference Result 11687 states and 19387 transitions.
[2023-11-29 02:23:21,365 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-29 02:23:21,366 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 494.3333333333333) internal successors, (2966), 5 states have internal predecessors, (2966), 0 states have call successors, (0), 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 2966
[2023-11-29 02:23:21,366 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:23:21,372 INFO  L225             Difference]: With dead ends: 11687
[2023-11-29 02:23:21,372 INFO  L226             Difference]: Without dead ends: 7435
[2023-11-29 02:23:21,377 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90
[2023-11-29 02:23:21,377 INFO  L413           NwaCegarLoop]: 6265 mSDtfsCounter, 19028 mSDsluCounter, 16967 mSDsCounter, 0 mSdLazyCounter, 1713 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19028 SdHoareTripleChecker+Valid, 23232 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-11-29 02:23:21,378 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19028 Valid, 23232 Invalid, 1759 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 1713 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-11-29 02:23:21,387 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7435 states.
[2023-11-29 02:23:21,446 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7435 to 4443.
[2023-11-29 02:23:21,451 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4443 states, 4442 states have (on average 1.6620891490319676) internal successors, (7383), 4442 states have internal predecessors, (7383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:21,458 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 7383 transitions.
[2023-11-29 02:23:21,458 INFO  L78                 Accepts]: Start accepts. Automaton has 4443 states and 7383 transitions. Word has length 2966
[2023-11-29 02:23:21,458 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:23:21,458 INFO  L495      AbstractCegarLoop]: Abstraction has 4443 states and 7383 transitions.
[2023-11-29 02:23:21,459 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 494.3333333333333) internal successors, (2966), 5 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:21,459 INFO  L276                IsEmpty]: Start isEmpty. Operand 4443 states and 7383 transitions.
[2023-11-29 02:23:21,499 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2968
[2023-11-29 02:23:21,499 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:23:21,501 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:23:21,501 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-11-29 02:23:21,501 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:23:21,502 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:23:21,502 INFO  L85        PathProgramCache]: Analyzing trace with hash 1401467566, now seen corresponding path program 1 times
[2023-11-29 02:23:21,503 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:23:21,503 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995600098]
[2023-11-29 02:23:21,503 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:23:21,503 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:23:24,563 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:23:30,461 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked.
[2023-11-29 02:23:30,461 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:23:30,462 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995600098]
[2023-11-29 02:23:30,462 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995600098] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:23:30,462 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:23:30,462 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:23:30,462 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520979148]
[2023-11-29 02:23:30,462 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:23:30,464 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:23:30,464 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:23:30,466 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:23:30,467 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:23:30,467 INFO  L87              Difference]: Start difference. First operand 4443 states and 7383 transitions. Second operand  has 5 states, 5 states have (on average 514.6) internal successors, (2573), 5 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:30,653 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:23:30,653 INFO  L93              Difference]: Finished difference Result 11689 states and 19420 transitions.
[2023-11-29 02:23:30,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:23:30,654 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 514.6) internal successors, (2573), 5 states have internal predecessors, (2573), 0 states have call successors, (0), 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 2967
[2023-11-29 02:23:30,656 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:23:30,664 INFO  L225             Difference]: With dead ends: 11689
[2023-11-29 02:23:30,664 INFO  L226             Difference]: Without dead ends: 8035
[2023-11-29 02:23:30,669 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:23:30,670 INFO  L413           NwaCegarLoop]: 7306 mSDtfsCounter, 5960 mSDsluCounter, 19573 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5960 SdHoareTripleChecker+Valid, 26879 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:23:30,670 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5960 Valid, 26879 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:23:30,680 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8035 states.
[2023-11-29 02:23:30,739 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8035 to 4445.
[2023-11-29 02:23:30,744 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4445 states, 4444 states have (on average 1.6617911791179119) internal successors, (7385), 4444 states have internal predecessors, (7385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:30,752 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 7385 transitions.
[2023-11-29 02:23:30,753 INFO  L78                 Accepts]: Start accepts. Automaton has 4445 states and 7385 transitions. Word has length 2967
[2023-11-29 02:23:30,755 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:23:30,755 INFO  L495      AbstractCegarLoop]: Abstraction has 4445 states and 7385 transitions.
[2023-11-29 02:23:30,756 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 514.6) internal successors, (2573), 5 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:30,756 INFO  L276                IsEmpty]: Start isEmpty. Operand 4445 states and 7385 transitions.
[2023-11-29 02:23:30,811 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2969
[2023-11-29 02:23:30,811 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:23:30,814 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:23:30,814 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-11-29 02:23:30,814 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:23:30,814 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:23:30,816 INFO  L85        PathProgramCache]: Analyzing trace with hash 1638407536, now seen corresponding path program 1 times
[2023-11-29 02:23:30,816 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:23:30,816 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328012649]
[2023-11-29 02:23:30,816 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:23:30,817 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:23:33,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:23:39,447 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked.
[2023-11-29 02:23:39,448 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:23:39,448 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328012649]
[2023-11-29 02:23:39,448 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328012649] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:23:39,448 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:23:39,448 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:23:39,448 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292559001]
[2023-11-29 02:23:39,449 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:23:39,452 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:23:39,452 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:23:39,454 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:23:39,454 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:23:39,454 INFO  L87              Difference]: Start difference. First operand 4445 states and 7385 transitions. Second operand  has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:39,583 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:23:39,583 INFO  L93              Difference]: Finished difference Result 11695 states and 19426 transitions.
[2023-11-29 02:23:39,583 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:23:39,584 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 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 2968
[2023-11-29 02:23:39,586 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:23:39,591 INFO  L225             Difference]: With dead ends: 11695
[2023-11-29 02:23:39,592 INFO  L226             Difference]: Without dead ends: 8036
[2023-11-29 02:23:39,595 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
[2023-11-29 02:23:39,595 INFO  L413           NwaCegarLoop]: 7301 mSDtfsCounter, 5957 mSDsluCounter, 13609 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5957 SdHoareTripleChecker+Valid, 20910 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
[2023-11-29 02:23:39,596 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5957 Valid, 20910 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:23:39,602 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8036 states.
[2023-11-29 02:23:39,644 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 4447.
[2023-11-29 02:23:39,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4447 states, 4446 states have (on average 1.661493477282951) internal successors, (7387), 4446 states have internal predecessors, (7387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:39,653 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4447 states to 4447 states and 7387 transitions.
[2023-11-29 02:23:39,653 INFO  L78                 Accepts]: Start accepts. Automaton has 4447 states and 7387 transitions. Word has length 2968
[2023-11-29 02:23:39,654 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:23:39,655 INFO  L495      AbstractCegarLoop]: Abstraction has 4447 states and 7387 transitions.
[2023-11-29 02:23:39,655 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:39,655 INFO  L276                IsEmpty]: Start isEmpty. Operand 4447 states and 7387 transitions.
[2023-11-29 02:23:39,696 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2970
[2023-11-29 02:23:39,696 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:23:39,698 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:23:39,698 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-11-29 02:23:39,698 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:23:39,698 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:23:39,699 INFO  L85        PathProgramCache]: Analyzing trace with hash 183364614, now seen corresponding path program 1 times
[2023-11-29 02:23:39,699 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:23:39,699 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235628799]
[2023-11-29 02:23:39,699 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:23:39,700 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:23:43,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:23:49,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2023-11-29 02:23:49,969 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:23:49,969 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235628799]
[2023-11-29 02:23:49,969 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235628799] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:23:49,969 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:23:49,970 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:23:49,970 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374149412]
[2023-11-29 02:23:49,970 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:23:49,973 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:23:49,973 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:23:49,975 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:23:49,975 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:23:49,976 INFO  L87              Difference]: Start difference. First operand 4447 states and 7387 transitions. Second operand  has 5 states, 5 states have (on average 515.8) internal successors, (2579), 5 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:50,126 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:23:50,127 INFO  L93              Difference]: Finished difference Result 11701 states and 19432 transitions.
[2023-11-29 02:23:50,127 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:23:50,128 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 515.8) internal successors, (2579), 5 states have internal predecessors, (2579), 0 states have call successors, (0), 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 2969
[2023-11-29 02:23:50,130 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:23:50,135 INFO  L225             Difference]: With dead ends: 11701
[2023-11-29 02:23:50,135 INFO  L226             Difference]: Without dead ends: 8037
[2023-11-29 02:23:50,138 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:23:50,139 INFO  L413           NwaCegarLoop]: 7296 mSDtfsCounter, 5954 mSDsluCounter, 19557 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5954 SdHoareTripleChecker+Valid, 26853 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:23:50,139 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5954 Valid, 26853 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:23:50,146 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8037 states.
[2023-11-29 02:23:50,186 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8037 to 4449.
[2023-11-29 02:23:50,190 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4449 states, 4448 states have (on average 1.6611960431654675) internal successors, (7389), 4448 states have internal predecessors, (7389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:50,195 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4449 states to 4449 states and 7389 transitions.
[2023-11-29 02:23:50,196 INFO  L78                 Accepts]: Start accepts. Automaton has 4449 states and 7389 transitions. Word has length 2969
[2023-11-29 02:23:50,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:23:50,197 INFO  L495      AbstractCegarLoop]: Abstraction has 4449 states and 7389 transitions.
[2023-11-29 02:23:50,198 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 515.8) internal successors, (2579), 5 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:50,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 4449 states and 7389 transitions.
[2023-11-29 02:23:50,335 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2971
[2023-11-29 02:23:50,335 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:23:50,337 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:23:50,337 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-11-29 02:23:50,337 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:23:50,337 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:23:50,338 INFO  L85        PathProgramCache]: Analyzing trace with hash -1145689386, now seen corresponding path program 1 times
[2023-11-29 02:23:50,338 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:23:50,338 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134622386]
[2023-11-29 02:23:50,338 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:23:50,338 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:23:52,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:23:58,111 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked.
[2023-11-29 02:23:58,111 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:23:58,111 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134622386]
[2023-11-29 02:23:58,111 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134622386] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:23:58,111 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:23:58,112 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:23:58,112 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284761318]
[2023-11-29 02:23:58,112 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:23:58,115 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:23:58,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:23:58,118 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:23:58,118 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:23:58,119 INFO  L87              Difference]: Start difference. First operand 4449 states and 7389 transitions. Second operand  has 4 states, 4 states have (on average 646.0) internal successors, (2584), 4 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:58,260 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:23:58,261 INFO  L93              Difference]: Finished difference Result 11710 states and 19443 transitions.
[2023-11-29 02:23:58,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:23:58,261 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 646.0) internal successors, (2584), 4 states have internal predecessors, (2584), 0 states have call successors, (0), 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 2970
[2023-11-29 02:23:58,263 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:23:58,268 INFO  L225             Difference]: With dead ends: 11710
[2023-11-29 02:23:58,268 INFO  L226             Difference]: Without dead ends: 8041
[2023-11-29 02:23:58,271 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
[2023-11-29 02:23:58,272 INFO  L413           NwaCegarLoop]: 7286 mSDtfsCounter, 5949 mSDsluCounter, 13594 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5949 SdHoareTripleChecker+Valid, 20880 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
[2023-11-29 02:23:58,272 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5949 Valid, 20880 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:23:58,278 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8041 states.
[2023-11-29 02:23:58,317 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8041 to 4454.
[2023-11-29 02:23:58,321 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4454 states, 4453 states have (on average 1.660902762182798) internal successors, (7396), 4453 states have internal predecessors, (7396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:58,326 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 7396 transitions.
[2023-11-29 02:23:58,326 INFO  L78                 Accepts]: Start accepts. Automaton has 4454 states and 7396 transitions. Word has length 2970
[2023-11-29 02:23:58,328 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:23:58,328 INFO  L495      AbstractCegarLoop]: Abstraction has 4454 states and 7396 transitions.
[2023-11-29 02:23:58,329 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 646.0) internal successors, (2584), 4 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:23:58,329 INFO  L276                IsEmpty]: Start isEmpty. Operand 4454 states and 7396 transitions.
[2023-11-29 02:23:58,370 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2972
[2023-11-29 02:23:58,370 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:23:58,373 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:23:58,373 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-11-29 02:23:58,373 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:23:58,373 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:23:58,375 INFO  L85        PathProgramCache]: Analyzing trace with hash -1150977476, now seen corresponding path program 1 times
[2023-11-29 02:23:58,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:23:58,375 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028517766]
[2023-11-29 02:23:58,375 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:23:58,376 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:24:01,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:24:07,039 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked.
[2023-11-29 02:24:07,040 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:24:07,040 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028517766]
[2023-11-29 02:24:07,040 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028517766] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:24:07,040 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:24:07,040 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:24:07,040 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521112080]
[2023-11-29 02:24:07,040 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:24:07,042 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:24:07,043 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:24:07,045 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:24:07,045 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:24:07,045 INFO  L87              Difference]: Start difference. First operand 4454 states and 7396 transitions. Second operand  has 4 states, 4 states have (on average 646.75) internal successors, (2587), 4 states have internal predecessors, (2587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:07,179 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:24:07,179 INFO  L93              Difference]: Finished difference Result 11718 states and 19453 transitions.
[2023-11-29 02:24:07,179 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:24:07,180 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 646.75) internal successors, (2587), 4 states have internal predecessors, (2587), 0 states have call successors, (0), 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 2971
[2023-11-29 02:24:07,182 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:24:07,189 INFO  L225             Difference]: With dead ends: 11718
[2023-11-29 02:24:07,189 INFO  L226             Difference]: Without dead ends: 8038
[2023-11-29 02:24:07,193 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
[2023-11-29 02:24:07,193 INFO  L413           NwaCegarLoop]: 7277 mSDtfsCounter, 5943 mSDsluCounter, 13583 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5943 SdHoareTripleChecker+Valid, 20860 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:24:07,194 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5943 Valid, 20860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:24:07,201 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8038 states.
[2023-11-29 02:24:07,242 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8038 to 4456.
[2023-11-29 02:24:07,246 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4456 states, 4455 states have (on average 1.6606060606060606) internal successors, (7398), 4455 states have internal predecessors, (7398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:07,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 7398 transitions.
[2023-11-29 02:24:07,251 INFO  L78                 Accepts]: Start accepts. Automaton has 4456 states and 7398 transitions. Word has length 2971
[2023-11-29 02:24:07,253 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:24:07,253 INFO  L495      AbstractCegarLoop]: Abstraction has 4456 states and 7398 transitions.
[2023-11-29 02:24:07,253 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 646.75) internal successors, (2587), 4 states have internal predecessors, (2587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:07,253 INFO  L276                IsEmpty]: Start isEmpty. Operand 4456 states and 7398 transitions.
[2023-11-29 02:24:07,295 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2973
[2023-11-29 02:24:07,295 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:24:07,297 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:24:07,297 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-11-29 02:24:07,297 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:24:07,298 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:24:07,299 INFO  L85        PathProgramCache]: Analyzing trace with hash -1731651714, now seen corresponding path program 1 times
[2023-11-29 02:24:07,299 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:24:07,299 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800172792]
[2023-11-29 02:24:07,300 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:24:07,300 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:24:10,053 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:24:15,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked.
[2023-11-29 02:24:15,654 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:24:15,654 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800172792]
[2023-11-29 02:24:15,654 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800172792] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:24:15,654 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:24:15,655 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:24:15,655 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82476443]
[2023-11-29 02:24:15,655 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:24:15,657 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:24:15,657 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:24:15,659 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:24:15,660 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:24:15,660 INFO  L87              Difference]: Start difference. First operand 4456 states and 7398 transitions. Second operand  has 4 states, 4 states have (on average 647.5) internal successors, (2590), 4 states have internal predecessors, (2590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:15,791 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:24:15,791 INFO  L93              Difference]: Finished difference Result 11731 states and 19470 transitions.
[2023-11-29 02:24:15,792 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:24:15,792 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 647.5) internal successors, (2590), 4 states have internal predecessors, (2590), 0 states have call successors, (0), 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 2972
[2023-11-29 02:24:15,794 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:24:15,800 INFO  L225             Difference]: With dead ends: 11731
[2023-11-29 02:24:15,800 INFO  L226             Difference]: Without dead ends: 8049
[2023-11-29 02:24:15,803 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
[2023-11-29 02:24:15,804 INFO  L413           NwaCegarLoop]: 7276 mSDtfsCounter, 5945 mSDsluCounter, 13584 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5945 SdHoareTripleChecker+Valid, 20860 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
[2023-11-29 02:24:15,804 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5945 Valid, 20860 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:24:15,811 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8049 states.
[2023-11-29 02:24:15,877 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8049 to 4459.
[2023-11-29 02:24:15,881 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4459 states, 4458 states have (on average 1.6606101390758188) internal successors, (7403), 4458 states have internal predecessors, (7403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:15,886 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4459 states to 4459 states and 7403 transitions.
[2023-11-29 02:24:15,886 INFO  L78                 Accepts]: Start accepts. Automaton has 4459 states and 7403 transitions. Word has length 2972
[2023-11-29 02:24:15,888 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:24:15,888 INFO  L495      AbstractCegarLoop]: Abstraction has 4459 states and 7403 transitions.
[2023-11-29 02:24:15,888 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 647.5) internal successors, (2590), 4 states have internal predecessors, (2590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:15,888 INFO  L276                IsEmpty]: Start isEmpty. Operand 4459 states and 7403 transitions.
[2023-11-29 02:24:15,926 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2974
[2023-11-29 02:24:15,926 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:24:15,927 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:24:15,927 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-11-29 02:24:15,928 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:24:15,928 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:24:15,929 INFO  L85        PathProgramCache]: Analyzing trace with hash 380494870, now seen corresponding path program 1 times
[2023-11-29 02:24:15,929 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:24:15,929 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418787721]
[2023-11-29 02:24:15,929 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:24:15,929 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:24:18,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:24:23,910 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked.
[2023-11-29 02:24:23,910 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:24:23,911 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418787721]
[2023-11-29 02:24:23,911 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418787721] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:24:23,911 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:24:23,911 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:24:23,911 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963726774]
[2023-11-29 02:24:23,911 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:24:23,913 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:24:23,914 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:24:23,916 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:24:23,916 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:24:23,916 INFO  L87              Difference]: Start difference. First operand 4459 states and 7403 transitions. Second operand  has 4 states, 4 states have (on average 648.75) internal successors, (2595), 4 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:24,048 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:24:24,049 INFO  L93              Difference]: Finished difference Result 11740 states and 19485 transitions.
[2023-11-29 02:24:24,050 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:24:24,051 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 648.75) internal successors, (2595), 4 states have internal predecessors, (2595), 0 states have call successors, (0), 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 2973
[2023-11-29 02:24:24,054 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:24:24,061 INFO  L225             Difference]: With dead ends: 11740
[2023-11-29 02:24:24,061 INFO  L226             Difference]: Without dead ends: 8049
[2023-11-29 02:24:24,065 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
[2023-11-29 02:24:24,065 INFO  L413           NwaCegarLoop]: 7266 mSDtfsCounter, 5943 mSDsluCounter, 13574 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5943 SdHoareTripleChecker+Valid, 20840 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
[2023-11-29 02:24:24,065 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5943 Valid, 20840 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:24:24,072 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8049 states.
[2023-11-29 02:24:24,111 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8049 to 4464.
[2023-11-29 02:24:24,115 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4464 states, 4463 states have (on average 1.6603181716334303) internal successors, (7410), 4463 states have internal predecessors, (7410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:24,120 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4464 states to 4464 states and 7410 transitions.
[2023-11-29 02:24:24,120 INFO  L78                 Accepts]: Start accepts. Automaton has 4464 states and 7410 transitions. Word has length 2973
[2023-11-29 02:24:24,122 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:24:24,122 INFO  L495      AbstractCegarLoop]: Abstraction has 4464 states and 7410 transitions.
[2023-11-29 02:24:24,122 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 648.75) internal successors, (2595), 4 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:24,122 INFO  L276                IsEmpty]: Start isEmpty. Operand 4464 states and 7410 transitions.
[2023-11-29 02:24:24,163 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2975
[2023-11-29 02:24:24,163 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:24:24,164 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:24:24,165 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-11-29 02:24:24,165 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:24:24,165 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:24:24,166 INFO  L85        PathProgramCache]: Analyzing trace with hash -1705813880, now seen corresponding path program 1 times
[2023-11-29 02:24:24,166 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:24:24,166 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170267627]
[2023-11-29 02:24:24,167 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:24:24,167 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:24:27,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:24:32,453 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2023-11-29 02:24:32,453 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:24:32,453 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170267627]
[2023-11-29 02:24:32,453 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170267627] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:24:32,453 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:24:32,454 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:24:32,454 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007700930]
[2023-11-29 02:24:32,455 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:24:32,458 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:24:32,458 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:24:32,461 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:24:32,461 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:24:32,462 INFO  L87              Difference]: Start difference. First operand 4464 states and 7410 transitions. Second operand  has 4 states, 4 states have (on average 649.5) internal successors, (2598), 4 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:32,596 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:24:32,596 INFO  L93              Difference]: Finished difference Result 11748 states and 19495 transitions.
[2023-11-29 02:24:32,597 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:24:32,597 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 649.5) internal successors, (2598), 4 states have internal predecessors, (2598), 0 states have call successors, (0), 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 2974
[2023-11-29 02:24:32,600 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:24:32,605 INFO  L225             Difference]: With dead ends: 11748
[2023-11-29 02:24:32,606 INFO  L226             Difference]: Without dead ends: 8046
[2023-11-29 02:24:32,609 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
[2023-11-29 02:24:32,609 INFO  L413           NwaCegarLoop]: 7257 mSDtfsCounter, 5937 mSDsluCounter, 13563 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5937 SdHoareTripleChecker+Valid, 20820 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:24:32,609 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5937 Valid, 20820 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:24:32,616 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8046 states.
[2023-11-29 02:24:32,657 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8046 to 4466.
[2023-11-29 02:24:32,661 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4466 states, 4465 states have (on average 1.6600223964165735) internal successors, (7412), 4465 states have internal predecessors, (7412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:32,666 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 7412 transitions.
[2023-11-29 02:24:32,666 INFO  L78                 Accepts]: Start accepts. Automaton has 4466 states and 7412 transitions. Word has length 2974
[2023-11-29 02:24:32,668 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:24:32,668 INFO  L495      AbstractCegarLoop]: Abstraction has 4466 states and 7412 transitions.
[2023-11-29 02:24:32,668 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 649.5) internal successors, (2598), 4 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:32,668 INFO  L276                IsEmpty]: Start isEmpty. Operand 4466 states and 7412 transitions.
[2023-11-29 02:24:32,709 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2976
[2023-11-29 02:24:32,709 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:24:32,710 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:24:32,711 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-11-29 02:24:32,711 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:24:32,711 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:24:32,712 INFO  L85        PathProgramCache]: Analyzing trace with hash 132903278, now seen corresponding path program 1 times
[2023-11-29 02:24:32,712 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:24:32,712 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292549602]
[2023-11-29 02:24:32,712 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:24:32,712 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:24:35,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:24:41,387 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked.
[2023-11-29 02:24:41,388 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:24:41,388 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292549602]
[2023-11-29 02:24:41,388 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292549602] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:24:41,388 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:24:41,388 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:24:41,389 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701981507]
[2023-11-29 02:24:41,389 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:24:41,392 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:24:41,392 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:24:41,394 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:24:41,394 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:24:41,394 INFO  L87              Difference]: Start difference. First operand 4466 states and 7412 transitions. Second operand  has 4 states, 4 states have (on average 650.25) internal successors, (2601), 4 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:41,521 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:24:41,521 INFO  L93              Difference]: Finished difference Result 11761 states and 19512 transitions.
[2023-11-29 02:24:41,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:24:41,522 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 650.25) internal successors, (2601), 4 states have internal predecessors, (2601), 0 states have call successors, (0), 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 2975
[2023-11-29 02:24:41,524 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:24:41,529 INFO  L225             Difference]: With dead ends: 11761
[2023-11-29 02:24:41,530 INFO  L226             Difference]: Without dead ends: 8057
[2023-11-29 02:24:41,533 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
[2023-11-29 02:24:41,533 INFO  L413           NwaCegarLoop]: 7256 mSDtfsCounter, 5939 mSDsluCounter, 13564 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5939 SdHoareTripleChecker+Valid, 20820 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
[2023-11-29 02:24:41,534 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5939 Valid, 20820 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:24:41,540 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8057 states.
[2023-11-29 02:24:41,580 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8057 to 4469.
[2023-11-29 02:24:41,584 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4469 states, 4468 states have (on average 1.6600268576544315) internal successors, (7417), 4468 states have internal predecessors, (7417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:41,589 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4469 states to 4469 states and 7417 transitions.
[2023-11-29 02:24:41,590 INFO  L78                 Accepts]: Start accepts. Automaton has 4469 states and 7417 transitions. Word has length 2975
[2023-11-29 02:24:41,591 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:24:41,591 INFO  L495      AbstractCegarLoop]: Abstraction has 4469 states and 7417 transitions.
[2023-11-29 02:24:41,592 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 650.25) internal successors, (2601), 4 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:41,592 INFO  L276                IsEmpty]: Start isEmpty. Operand 4469 states and 7417 transitions.
[2023-11-29 02:24:41,631 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2977
[2023-11-29 02:24:41,632 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:24:41,633 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:24:41,633 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2023-11-29 02:24:41,633 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:24:41,633 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:24:41,634 INFO  L85        PathProgramCache]: Analyzing trace with hash 1620873070, now seen corresponding path program 1 times
[2023-11-29 02:24:41,634 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:24:41,634 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136305421]
[2023-11-29 02:24:41,634 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:24:41,635 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:24:44,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:24:49,644 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked.
[2023-11-29 02:24:49,644 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:24:49,644 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136305421]
[2023-11-29 02:24:49,644 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136305421] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:24:49,644 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:24:49,645 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:24:49,645 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22366287]
[2023-11-29 02:24:49,645 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:24:49,647 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:24:49,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:24:49,649 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:24:49,649 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:24:49,650 INFO  L87              Difference]: Start difference. First operand 4469 states and 7417 transitions. Second operand  has 4 states, 4 states have (on average 651.0) internal successors, (2604), 4 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:49,775 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:24:49,775 INFO  L93              Difference]: Finished difference Result 11763 states and 19516 transitions.
[2023-11-29 02:24:49,775 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:24:49,776 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 651.0) internal successors, (2604), 4 states have internal predecessors, (2604), 0 states have call successors, (0), 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 2976
[2023-11-29 02:24:49,778 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:24:49,783 INFO  L225             Difference]: With dead ends: 11763
[2023-11-29 02:24:49,783 INFO  L226             Difference]: Without dead ends: 8050
[2023-11-29 02:24:49,786 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
[2023-11-29 02:24:49,787 INFO  L413           NwaCegarLoop]: 7247 mSDtfsCounter, 5934 mSDsluCounter, 13553 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5934 SdHoareTripleChecker+Valid, 20800 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:24:49,787 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5934 Valid, 20800 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:24:49,794 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8050 states.
[2023-11-29 02:24:49,833 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8050 to 4471.
[2023-11-29 02:24:49,837 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4471 states, 4470 states have (on average 1.659731543624161) internal successors, (7419), 4470 states have internal predecessors, (7419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:49,842 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4471 states to 4471 states and 7419 transitions.
[2023-11-29 02:24:49,842 INFO  L78                 Accepts]: Start accepts. Automaton has 4471 states and 7419 transitions. Word has length 2976
[2023-11-29 02:24:49,843 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:24:49,844 INFO  L495      AbstractCegarLoop]: Abstraction has 4471 states and 7419 transitions.
[2023-11-29 02:24:49,844 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 651.0) internal successors, (2604), 4 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:49,844 INFO  L276                IsEmpty]: Start isEmpty. Operand 4471 states and 7419 transitions.
[2023-11-29 02:24:49,883 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2978
[2023-11-29 02:24:49,883 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:24:49,884 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:24:49,884 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2023-11-29 02:24:49,884 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:24:49,884 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:24:49,885 INFO  L85        PathProgramCache]: Analyzing trace with hash -1024680568, now seen corresponding path program 1 times
[2023-11-29 02:24:49,885 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:24:49,885 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313503846]
[2023-11-29 02:24:49,885 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:24:49,885 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:24:53,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:24:58,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked.
[2023-11-29 02:24:58,419 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:24:58,419 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313503846]
[2023-11-29 02:24:58,419 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313503846] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:24:58,419 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:24:58,420 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:24:58,420 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154285565]
[2023-11-29 02:24:58,420 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:24:58,421 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:24:58,421 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:24:58,423 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:24:58,424 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:24:58,424 INFO  L87              Difference]: Start difference. First operand 4471 states and 7419 transitions. Second operand  has 4 states, 4 states have (on average 651.75) internal successors, (2607), 4 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:58,566 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:24:58,566 INFO  L93              Difference]: Finished difference Result 11776 states and 19533 transitions.
[2023-11-29 02:24:58,566 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:24:58,567 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 651.75) internal successors, (2607), 4 states have internal predecessors, (2607), 0 states have call successors, (0), 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 2977
[2023-11-29 02:24:58,569 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:24:58,574 INFO  L225             Difference]: With dead ends: 11776
[2023-11-29 02:24:58,574 INFO  L226             Difference]: Without dead ends: 8061
[2023-11-29 02:24:58,577 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
[2023-11-29 02:24:58,577 INFO  L413           NwaCegarLoop]: 7246 mSDtfsCounter, 5936 mSDsluCounter, 13554 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5936 SdHoareTripleChecker+Valid, 20800 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
[2023-11-29 02:24:58,577 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5936 Valid, 20800 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:24:58,584 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8061 states.
[2023-11-29 02:24:58,623 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8061 to 4474.
[2023-11-29 02:24:58,627 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4474 states, 4473 states have (on average 1.6597361949474625) internal successors, (7424), 4473 states have internal predecessors, (7424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:58,632 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4474 states to 4474 states and 7424 transitions.
[2023-11-29 02:24:58,633 INFO  L78                 Accepts]: Start accepts. Automaton has 4474 states and 7424 transitions. Word has length 2977
[2023-11-29 02:24:58,634 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:24:58,634 INFO  L495      AbstractCegarLoop]: Abstraction has 4474 states and 7424 transitions.
[2023-11-29 02:24:58,635 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 651.75) internal successors, (2607), 4 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:24:58,635 INFO  L276                IsEmpty]: Start isEmpty. Operand 4474 states and 7424 transitions.
[2023-11-29 02:24:58,674 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2979
[2023-11-29 02:24:58,674 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:24:58,675 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:24:58,675 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2023-11-29 02:24:58,675 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:24:58,675 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:24:58,676 INFO  L85        PathProgramCache]: Analyzing trace with hash 1852287634, now seen corresponding path program 1 times
[2023-11-29 02:24:58,676 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:24:58,676 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716098796]
[2023-11-29 02:24:58,676 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:24:58,677 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:25:01,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:25:07,086 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2023-11-29 02:25:07,086 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:25:07,087 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716098796]
[2023-11-29 02:25:07,087 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716098796] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:25:07,087 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:25:07,088 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:25:07,088 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26623078]
[2023-11-29 02:25:07,088 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:25:07,090 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:25:07,090 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:25:07,092 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:25:07,093 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:25:07,093 INFO  L87              Difference]: Start difference. First operand 4474 states and 7424 transitions. Second operand  has 4 states, 4 states have (on average 652.5) internal successors, (2610), 4 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:07,391 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:25:07,391 INFO  L93              Difference]: Finished difference Result 11778 states and 19537 transitions.
[2023-11-29 02:25:07,391 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:25:07,392 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 652.5) internal successors, (2610), 4 states have internal predecessors, (2610), 0 states have call successors, (0), 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 2978
[2023-11-29 02:25:07,394 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:25:07,400 INFO  L225             Difference]: With dead ends: 11778
[2023-11-29 02:25:07,400 INFO  L226             Difference]: Without dead ends: 8054
[2023-11-29 02:25:07,403 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
[2023-11-29 02:25:07,403 INFO  L413           NwaCegarLoop]: 7237 mSDtfsCounter, 5931 mSDsluCounter, 13543 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5931 SdHoareTripleChecker+Valid, 20780 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 02:25:07,404 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5931 Valid, 20780 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 02:25:07,410 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8054 states.
[2023-11-29 02:25:07,452 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8054 to 4476.
[2023-11-29 02:25:07,456 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4476 states, 4475 states have (on average 1.659441340782123) internal successors, (7426), 4475 states have internal predecessors, (7426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:07,461 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4476 states to 4476 states and 7426 transitions.
[2023-11-29 02:25:07,462 INFO  L78                 Accepts]: Start accepts. Automaton has 4476 states and 7426 transitions. Word has length 2978
[2023-11-29 02:25:07,463 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:25:07,463 INFO  L495      AbstractCegarLoop]: Abstraction has 4476 states and 7426 transitions.
[2023-11-29 02:25:07,464 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 652.5) internal successors, (2610), 4 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:07,464 INFO  L276                IsEmpty]: Start isEmpty. Operand 4476 states and 7426 transitions.
[2023-11-29 02:25:07,504 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2980
[2023-11-29 02:25:07,504 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:25:07,505 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:25:07,505 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2023-11-29 02:25:07,505 INFO  L420      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:25:07,505 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:25:07,506 INFO  L85        PathProgramCache]: Analyzing trace with hash -1394615840, now seen corresponding path program 1 times
[2023-11-29 02:25:07,506 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:25:07,506 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606864942]
[2023-11-29 02:25:07,506 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:25:07,506 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:25:09,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:25:15,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2023-11-29 02:25:15,680 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:25:15,680 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606864942]
[2023-11-29 02:25:15,680 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606864942] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:25:15,680 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:25:15,681 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:25:15,681 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635194257]
[2023-11-29 02:25:15,681 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:25:15,683 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:25:15,683 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:25:15,685 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:25:15,685 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:25:15,686 INFO  L87              Difference]: Start difference. First operand 4476 states and 7426 transitions. Second operand  has 4 states, 4 states have (on average 653.25) internal successors, (2613), 4 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:15,819 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:25:15,819 INFO  L93              Difference]: Finished difference Result 11791 states and 19554 transitions.
[2023-11-29 02:25:15,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:25:15,820 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 653.25) internal successors, (2613), 4 states have internal predecessors, (2613), 0 states have call successors, (0), 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 2979
[2023-11-29 02:25:15,822 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:25:15,827 INFO  L225             Difference]: With dead ends: 11791
[2023-11-29 02:25:15,827 INFO  L226             Difference]: Without dead ends: 8065
[2023-11-29 02:25:15,830 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
[2023-11-29 02:25:15,831 INFO  L413           NwaCegarLoop]: 7236 mSDtfsCounter, 5933 mSDsluCounter, 13544 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5933 SdHoareTripleChecker+Valid, 20780 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
[2023-11-29 02:25:15,831 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5933 Valid, 20780 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:25:15,837 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8065 states.
[2023-11-29 02:25:15,877 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8065 to 4479.
[2023-11-29 02:25:15,881 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4479 states, 4478 states have (on average 1.6594461813309513) internal successors, (7431), 4478 states have internal predecessors, (7431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:15,886 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4479 states to 4479 states and 7431 transitions.
[2023-11-29 02:25:15,887 INFO  L78                 Accepts]: Start accepts. Automaton has 4479 states and 7431 transitions. Word has length 2979
[2023-11-29 02:25:15,888 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:25:15,888 INFO  L495      AbstractCegarLoop]: Abstraction has 4479 states and 7431 transitions.
[2023-11-29 02:25:15,889 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 653.25) internal successors, (2613), 4 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:15,889 INFO  L276                IsEmpty]: Start isEmpty. Operand 4479 states and 7431 transitions.
[2023-11-29 02:25:16,037 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2981
[2023-11-29 02:25:16,037 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:25:16,038 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:25:16,038 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2023-11-29 02:25:16,038 INFO  L420      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:25:16,038 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:25:16,038 INFO  L85        PathProgramCache]: Analyzing trace with hash -440425096, now seen corresponding path program 1 times
[2023-11-29 02:25:16,039 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:25:16,039 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551811546]
[2023-11-29 02:25:16,039 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:25:16,039 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:25:18,887 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:25:24,569 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2023-11-29 02:25:24,570 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:25:24,570 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551811546]
[2023-11-29 02:25:24,570 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551811546] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:25:24,570 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:25:24,571 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:25:24,571 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116754771]
[2023-11-29 02:25:24,571 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:25:24,573 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:25:24,573 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:25:24,575 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:25:24,575 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:25:24,575 INFO  L87              Difference]: Start difference. First operand 4479 states and 7431 transitions. Second operand  has 4 states, 4 states have (on average 654.5) internal successors, (2618), 4 states have internal predecessors, (2618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:24,708 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:25:24,708 INFO  L93              Difference]: Finished difference Result 11800 states and 19569 transitions.
[2023-11-29 02:25:24,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:25:24,709 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 654.5) internal successors, (2618), 4 states have internal predecessors, (2618), 0 states have call successors, (0), 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 2980
[2023-11-29 02:25:24,711 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:25:24,717 INFO  L225             Difference]: With dead ends: 11800
[2023-11-29 02:25:24,718 INFO  L226             Difference]: Without dead ends: 8065
[2023-11-29 02:25:24,721 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
[2023-11-29 02:25:24,722 INFO  L413           NwaCegarLoop]: 7226 mSDtfsCounter, 5931 mSDsluCounter, 13534 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5931 SdHoareTripleChecker+Valid, 20760 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
[2023-11-29 02:25:24,722 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5931 Valid, 20760 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:25:24,731 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8065 states.
[2023-11-29 02:25:24,786 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8065 to 4484.
[2023-11-29 02:25:24,790 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4484 states, 4483 states have (on average 1.6591568146330582) internal successors, (7438), 4483 states have internal predecessors, (7438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:24,795 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 7438 transitions.
[2023-11-29 02:25:24,795 INFO  L78                 Accepts]: Start accepts. Automaton has 4484 states and 7438 transitions. Word has length 2980
[2023-11-29 02:25:24,797 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:25:24,797 INFO  L495      AbstractCegarLoop]: Abstraction has 4484 states and 7438 transitions.
[2023-11-29 02:25:24,798 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 654.5) internal successors, (2618), 4 states have internal predecessors, (2618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:24,798 INFO  L276                IsEmpty]: Start isEmpty. Operand 4484 states and 7438 transitions.
[2023-11-29 02:25:24,838 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2982
[2023-11-29 02:25:24,838 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:25:24,839 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:25:24,839 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2023-11-29 02:25:24,839 INFO  L420      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:25:24,839 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:25:24,840 INFO  L85        PathProgramCache]: Analyzing trace with hash -585862250, now seen corresponding path program 1 times
[2023-11-29 02:25:24,840 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:25:24,840 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071487546]
[2023-11-29 02:25:24,840 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:25:24,840 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:25:27,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:25:32,948 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked.
[2023-11-29 02:25:32,948 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:25:32,948 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071487546]
[2023-11-29 02:25:32,948 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071487546] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:25:32,948 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:25:32,949 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:25:32,949 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201273383]
[2023-11-29 02:25:32,949 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:25:32,951 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:25:32,951 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:25:32,952 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:25:32,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:25:32,953 INFO  L87              Difference]: Start difference. First operand 4484 states and 7438 transitions. Second operand  has 4 states, 4 states have (on average 655.25) internal successors, (2621), 4 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:33,086 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:25:33,086 INFO  L93              Difference]: Finished difference Result 11808 states and 19579 transitions.
[2023-11-29 02:25:33,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:25:33,087 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 655.25) internal successors, (2621), 4 states have internal predecessors, (2621), 0 states have call successors, (0), 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 2981
[2023-11-29 02:25:33,088 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:25:33,094 INFO  L225             Difference]: With dead ends: 11808
[2023-11-29 02:25:33,094 INFO  L226             Difference]: Without dead ends: 8062
[2023-11-29 02:25:33,097 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
[2023-11-29 02:25:33,098 INFO  L413           NwaCegarLoop]: 7217 mSDtfsCounter, 5925 mSDsluCounter, 13523 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5925 SdHoareTripleChecker+Valid, 20740 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:25:33,098 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5925 Valid, 20740 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:25:33,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8062 states.
[2023-11-29 02:25:33,147 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8062 to 4486.
[2023-11-29 02:25:33,151 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4486 states, 4485 states have (on average 1.6588628762541806) internal successors, (7440), 4485 states have internal predecessors, (7440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:33,156 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4486 states to 4486 states and 7440 transitions.
[2023-11-29 02:25:33,156 INFO  L78                 Accepts]: Start accepts. Automaton has 4486 states and 7440 transitions. Word has length 2981
[2023-11-29 02:25:33,158 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:25:33,158 INFO  L495      AbstractCegarLoop]: Abstraction has 4486 states and 7440 transitions.
[2023-11-29 02:25:33,158 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 655.25) internal successors, (2621), 4 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:33,158 INFO  L276                IsEmpty]: Start isEmpty. Operand 4486 states and 7440 transitions.
[2023-11-29 02:25:33,200 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2983
[2023-11-29 02:25:33,201 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:25:33,201 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:25:33,201 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2023-11-29 02:25:33,202 INFO  L420      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:25:33,202 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:25:33,202 INFO  L85        PathProgramCache]: Analyzing trace with hash 149974816, now seen corresponding path program 1 times
[2023-11-29 02:25:33,202 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:25:33,202 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196640478]
[2023-11-29 02:25:33,203 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:25:33,203 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:25:36,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:25:41,876 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked.
[2023-11-29 02:25:41,877 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:25:41,877 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196640478]
[2023-11-29 02:25:41,877 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196640478] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:25:41,877 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:25:41,877 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:25:41,878 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785006689]
[2023-11-29 02:25:41,878 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:25:41,879 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:25:41,880 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:25:41,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:25:41,881 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:25:41,882 INFO  L87              Difference]: Start difference. First operand 4486 states and 7440 transitions. Second operand  has 4 states, 4 states have (on average 656.0) internal successors, (2624), 4 states have internal predecessors, (2624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:42,017 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:25:42,017 INFO  L93              Difference]: Finished difference Result 11821 states and 19596 transitions.
[2023-11-29 02:25:42,018 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:25:42,018 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 656.0) internal successors, (2624), 4 states have internal predecessors, (2624), 0 states have call successors, (0), 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 2982
[2023-11-29 02:25:42,020 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:25:42,026 INFO  L225             Difference]: With dead ends: 11821
[2023-11-29 02:25:42,026 INFO  L226             Difference]: Without dead ends: 8073
[2023-11-29 02:25:42,029 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
[2023-11-29 02:25:42,030 INFO  L413           NwaCegarLoop]: 7216 mSDtfsCounter, 5927 mSDsluCounter, 13524 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5927 SdHoareTripleChecker+Valid, 20740 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
[2023-11-29 02:25:42,030 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5927 Valid, 20740 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:25:42,038 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8073 states.
[2023-11-29 02:25:42,080 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8073 to 4489.
[2023-11-29 02:25:42,084 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4489 states, 4488 states have (on average 1.6588680926916222) internal successors, (7445), 4488 states have internal predecessors, (7445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:42,090 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4489 states to 4489 states and 7445 transitions.
[2023-11-29 02:25:42,090 INFO  L78                 Accepts]: Start accepts. Automaton has 4489 states and 7445 transitions. Word has length 2982
[2023-11-29 02:25:42,091 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:25:42,091 INFO  L495      AbstractCegarLoop]: Abstraction has 4489 states and 7445 transitions.
[2023-11-29 02:25:42,092 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 656.0) internal successors, (2624), 4 states have internal predecessors, (2624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:42,092 INFO  L276                IsEmpty]: Start isEmpty. Operand 4489 states and 7445 transitions.
[2023-11-29 02:25:42,134 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2984
[2023-11-29 02:25:42,134 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:25:42,135 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:25:42,135 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2023-11-29 02:25:42,135 INFO  L420      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:25:42,135 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:25:42,136 INFO  L85        PathProgramCache]: Analyzing trace with hash -1722040336, now seen corresponding path program 1 times
[2023-11-29 02:25:42,136 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:25:42,136 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337515155]
[2023-11-29 02:25:42,136 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:25:42,136 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:25:44,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:25:50,255 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked.
[2023-11-29 02:25:50,255 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:25:50,255 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337515155]
[2023-11-29 02:25:50,255 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337515155] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:25:50,255 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:25:50,256 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:25:50,256 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017924740]
[2023-11-29 02:25:50,256 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:25:50,258 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:25:50,258 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:25:50,260 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:25:50,260 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:25:50,261 INFO  L87              Difference]: Start difference. First operand 4489 states and 7445 transitions. Second operand  has 4 states, 4 states have (on average 656.75) internal successors, (2627), 4 states have internal predecessors, (2627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:50,386 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:25:50,386 INFO  L93              Difference]: Finished difference Result 11823 states and 19600 transitions.
[2023-11-29 02:25:50,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:25:50,387 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 656.75) internal successors, (2627), 4 states have internal predecessors, (2627), 0 states have call successors, (0), 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 2983
[2023-11-29 02:25:50,389 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:25:50,394 INFO  L225             Difference]: With dead ends: 11823
[2023-11-29 02:25:50,394 INFO  L226             Difference]: Without dead ends: 8066
[2023-11-29 02:25:50,398 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
[2023-11-29 02:25:50,398 INFO  L413           NwaCegarLoop]: 7207 mSDtfsCounter, 5922 mSDsluCounter, 13513 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5922 SdHoareTripleChecker+Valid, 20720 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:25:50,399 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5922 Valid, 20720 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:25:50,405 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8066 states.
[2023-11-29 02:25:50,450 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8066 to 4491.
[2023-11-29 02:25:50,454 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4491 states, 4490 states have (on average 1.6585746102449888) internal successors, (7447), 4490 states have internal predecessors, (7447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:50,459 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4491 states to 4491 states and 7447 transitions.
[2023-11-29 02:25:50,460 INFO  L78                 Accepts]: Start accepts. Automaton has 4491 states and 7447 transitions. Word has length 2983
[2023-11-29 02:25:50,461 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:25:50,461 INFO  L495      AbstractCegarLoop]: Abstraction has 4491 states and 7447 transitions.
[2023-11-29 02:25:50,462 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 656.75) internal successors, (2627), 4 states have internal predecessors, (2627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:50,462 INFO  L276                IsEmpty]: Start isEmpty. Operand 4491 states and 7447 transitions.
[2023-11-29 02:25:50,511 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2985
[2023-11-29 02:25:50,511 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:25:50,511 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:25:50,512 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2023-11-29 02:25:50,512 INFO  L420      AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:25:50,512 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:25:50,512 INFO  L85        PathProgramCache]: Analyzing trace with hash -1345544250, now seen corresponding path program 1 times
[2023-11-29 02:25:50,512 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:25:50,513 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513040769]
[2023-11-29 02:25:50,513 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:25:50,513 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:25:53,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:25:59,546 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked.
[2023-11-29 02:25:59,546 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:25:59,546 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513040769]
[2023-11-29 02:25:59,546 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513040769] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:25:59,546 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:25:59,547 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:25:59,547 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096896036]
[2023-11-29 02:25:59,547 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:25:59,550 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:25:59,550 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:25:59,552 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:25:59,552 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:25:59,553 INFO  L87              Difference]: Start difference. First operand 4491 states and 7447 transitions. Second operand  has 5 states, 5 states have (on average 526.0) internal successors, (2630), 5 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:59,743 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:25:59,743 INFO  L93              Difference]: Finished difference Result 11836 states and 19617 transitions.
[2023-11-29 02:25:59,743 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:25:59,744 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 526.0) internal successors, (2630), 5 states have internal predecessors, (2630), 0 states have call successors, (0), 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 2984
[2023-11-29 02:25:59,747 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:25:59,755 INFO  L225             Difference]: With dead ends: 11836
[2023-11-29 02:25:59,755 INFO  L226             Difference]: Without dead ends: 8077
[2023-11-29 02:25:59,760 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:25:59,761 INFO  L413           NwaCegarLoop]: 7205 mSDtfsCounter, 5926 mSDsluCounter, 19434 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5926 SdHoareTripleChecker+Valid, 26639 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:25:59,761 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5926 Valid, 26639 Invalid, 31 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:25:59,770 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8077 states.
[2023-11-29 02:25:59,836 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8077 to 4494.
[2023-11-29 02:25:59,842 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4494 states, 4493 states have (on average 1.6585800133541064) internal successors, (7452), 4493 states have internal predecessors, (7452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:59,851 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4494 states to 4494 states and 7452 transitions.
[2023-11-29 02:25:59,851 INFO  L78                 Accepts]: Start accepts. Automaton has 4494 states and 7452 transitions. Word has length 2984
[2023-11-29 02:25:59,854 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:25:59,854 INFO  L495      AbstractCegarLoop]: Abstraction has 4494 states and 7452 transitions.
[2023-11-29 02:25:59,855 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 526.0) internal successors, (2630), 5 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:25:59,855 INFO  L276                IsEmpty]: Start isEmpty. Operand 4494 states and 7452 transitions.
[2023-11-29 02:25:59,932 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2986
[2023-11-29 02:25:59,932 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:25:59,933 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:25:59,933 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2023-11-29 02:25:59,933 INFO  L420      AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:25:59,934 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:25:59,934 INFO  L85        PathProgramCache]: Analyzing trace with hash 1786757708, now seen corresponding path program 1 times
[2023-11-29 02:25:59,935 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:25:59,935 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419212118]
[2023-11-29 02:25:59,935 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:25:59,935 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:26:03,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:26:09,035 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked.
[2023-11-29 02:26:09,035 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:26:09,035 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419212118]
[2023-11-29 02:26:09,035 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419212118] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:26:09,035 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:26:09,036 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:26:09,036 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399994617]
[2023-11-29 02:26:09,036 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:26:09,038 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:26:09,038 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:26:09,039 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:26:09,040 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:26:09,040 INFO  L87              Difference]: Start difference. First operand 4494 states and 7452 transitions. Second operand  has 4 states, 4 states have (on average 658.25) internal successors, (2633), 4 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:09,169 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:26:09,169 INFO  L93              Difference]: Finished difference Result 11842 states and 19627 transitions.
[2023-11-29 02:26:09,170 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:26:09,170 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 658.25) internal successors, (2633), 4 states have internal predecessors, (2633), 0 states have call successors, (0), 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 2985
[2023-11-29 02:26:09,172 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:26:09,178 INFO  L225             Difference]: With dead ends: 11842
[2023-11-29 02:26:09,178 INFO  L226             Difference]: Without dead ends: 8074
[2023-11-29 02:26:09,181 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
[2023-11-29 02:26:09,181 INFO  L413           NwaCegarLoop]: 7201 mSDtfsCounter, 5924 mSDsluCounter, 13509 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5924 SdHoareTripleChecker+Valid, 20710 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
[2023-11-29 02:26:09,182 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5924 Valid, 20710 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:26:09,188 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8074 states.
[2023-11-29 02:26:09,231 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8074 to 4496.
[2023-11-29 02:26:09,235 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4496 states, 4495 states have (on average 1.6582869855394884) internal successors, (7454), 4495 states have internal predecessors, (7454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:09,240 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 7454 transitions.
[2023-11-29 02:26:09,240 INFO  L78                 Accepts]: Start accepts. Automaton has 4496 states and 7454 transitions. Word has length 2985
[2023-11-29 02:26:09,242 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:26:09,242 INFO  L495      AbstractCegarLoop]: Abstraction has 4496 states and 7454 transitions.
[2023-11-29 02:26:09,242 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 658.25) internal successors, (2633), 4 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:09,243 INFO  L276                IsEmpty]: Start isEmpty. Operand 4496 states and 7454 transitions.
[2023-11-29 02:26:09,282 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2987
[2023-11-29 02:26:09,282 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:26:09,283 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:26:09,283 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2023-11-29 02:26:09,283 INFO  L420      AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:26:09,283 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:26:09,283 INFO  L85        PathProgramCache]: Analyzing trace with hash -903456146, now seen corresponding path program 1 times
[2023-11-29 02:26:09,284 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:26:09,284 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288921291]
[2023-11-29 02:26:09,284 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:26:09,284 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:26:12,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:26:18,360 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked.
[2023-11-29 02:26:18,360 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:26:18,360 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288921291]
[2023-11-29 02:26:18,360 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288921291] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:26:18,360 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:26:18,361 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:26:18,361 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384320178]
[2023-11-29 02:26:18,361 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:26:18,362 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:26:18,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:26:18,364 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:26:18,364 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:26:18,364 INFO  L87              Difference]: Start difference. First operand 4496 states and 7454 transitions. Second operand  has 4 states, 4 states have (on average 659.5) internal successors, (2638), 4 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:18,494 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:26:18,494 INFO  L93              Difference]: Finished difference Result 11851 states and 19638 transitions.
[2023-11-29 02:26:18,494 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:26:18,495 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 659.5) internal successors, (2638), 4 states have internal predecessors, (2638), 0 states have call successors, (0), 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 2986
[2023-11-29 02:26:18,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:26:18,503 INFO  L225             Difference]: With dead ends: 11851
[2023-11-29 02:26:18,503 INFO  L226             Difference]: Without dead ends: 8078
[2023-11-29 02:26:18,506 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
[2023-11-29 02:26:18,506 INFO  L413           NwaCegarLoop]: 7191 mSDtfsCounter, 5919 mSDsluCounter, 13499 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5919 SdHoareTripleChecker+Valid, 20690 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
[2023-11-29 02:26:18,507 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5919 Valid, 20690 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:26:18,513 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8078 states.
[2023-11-29 02:26:18,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8078 to 4501.
[2023-11-29 02:26:18,557 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4501 states, 4500 states have (on average 1.658) internal successors, (7461), 4500 states have internal predecessors, (7461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:18,562 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4501 states to 4501 states and 7461 transitions.
[2023-11-29 02:26:18,562 INFO  L78                 Accepts]: Start accepts. Automaton has 4501 states and 7461 transitions. Word has length 2986
[2023-11-29 02:26:18,564 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:26:18,564 INFO  L495      AbstractCegarLoop]: Abstraction has 4501 states and 7461 transitions.
[2023-11-29 02:26:18,564 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 659.5) internal successors, (2638), 4 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:18,565 INFO  L276                IsEmpty]: Start isEmpty. Operand 4501 states and 7461 transitions.
[2023-11-29 02:26:18,603 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2988
[2023-11-29 02:26:18,603 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:26:18,604 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:26:18,604 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2023-11-29 02:26:18,604 INFO  L420      AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:26:18,604 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:26:18,605 INFO  L85        PathProgramCache]: Analyzing trace with hash -1439813568, now seen corresponding path program 1 times
[2023-11-29 02:26:18,605 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:26:18,605 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237159252]
[2023-11-29 02:26:18,605 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:26:18,605 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:26:21,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:26:26,735 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked.
[2023-11-29 02:26:26,735 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:26:26,735 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237159252]
[2023-11-29 02:26:26,736 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237159252] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:26:26,736 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:26:26,736 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:26:26,736 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071177141]
[2023-11-29 02:26:26,736 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:26:26,738 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:26:26,738 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:26:26,739 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:26:26,739 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:26:26,740 INFO  L87              Difference]: Start difference. First operand 4501 states and 7461 transitions. Second operand  has 4 states, 4 states have (on average 660.25) internal successors, (2641), 4 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:26,870 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:26:26,871 INFO  L93              Difference]: Finished difference Result 11859 states and 19648 transitions.
[2023-11-29 02:26:26,871 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:26:26,872 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 660.25) internal successors, (2641), 4 states have internal predecessors, (2641), 0 states have call successors, (0), 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 2987
[2023-11-29 02:26:26,874 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:26:26,880 INFO  L225             Difference]: With dead ends: 11859
[2023-11-29 02:26:26,880 INFO  L226             Difference]: Without dead ends: 8075
[2023-11-29 02:26:26,883 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
[2023-11-29 02:26:26,883 INFO  L413           NwaCegarLoop]: 7182 mSDtfsCounter, 5913 mSDsluCounter, 13488 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5913 SdHoareTripleChecker+Valid, 20670 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:26:26,883 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5913 Valid, 20670 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:26:26,890 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8075 states.
[2023-11-29 02:26:26,929 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8075 to 4503.
[2023-11-29 02:26:26,933 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4503 states, 4502 states have (on average 1.657707685473123) internal successors, (7463), 4502 states have internal predecessors, (7463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:26,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4503 states to 4503 states and 7463 transitions.
[2023-11-29 02:26:26,939 INFO  L78                 Accepts]: Start accepts. Automaton has 4503 states and 7463 transitions. Word has length 2987
[2023-11-29 02:26:26,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:26:26,940 INFO  L495      AbstractCegarLoop]: Abstraction has 4503 states and 7463 transitions.
[2023-11-29 02:26:26,941 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 660.25) internal successors, (2641), 4 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:26,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 4503 states and 7463 transitions.
[2023-11-29 02:26:26,980 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2989
[2023-11-29 02:26:26,980 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:26:26,981 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:26:26,981 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2023-11-29 02:26:26,981 INFO  L420      AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:26:26,981 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:26:26,982 INFO  L85        PathProgramCache]: Analyzing trace with hash -1629523054, now seen corresponding path program 1 times
[2023-11-29 02:26:26,982 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:26:26,982 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779969768]
[2023-11-29 02:26:26,982 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:26:26,982 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:26:29,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:26:36,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked.
[2023-11-29 02:26:36,164 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:26:36,164 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779969768]
[2023-11-29 02:26:36,164 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779969768] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:26:36,164 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:26:36,165 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:26:36,165 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257036067]
[2023-11-29 02:26:36,165 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:26:36,166 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:26:36,166 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:26:36,168 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:26:36,168 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:26:36,169 INFO  L87              Difference]: Start difference. First operand 4503 states and 7463 transitions. Second operand  has 5 states, 5 states have (on average 528.8) internal successors, (2644), 5 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:36,334 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:26:36,334 INFO  L93              Difference]: Finished difference Result 11872 states and 19665 transitions.
[2023-11-29 02:26:36,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:26:36,335 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 528.8) internal successors, (2644), 5 states have internal predecessors, (2644), 0 states have call successors, (0), 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 2988
[2023-11-29 02:26:36,337 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:26:36,343 INFO  L225             Difference]: With dead ends: 11872
[2023-11-29 02:26:36,343 INFO  L226             Difference]: Without dead ends: 8086
[2023-11-29 02:26:36,346 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:26:36,347 INFO  L413           NwaCegarLoop]: 7180 mSDtfsCounter, 5917 mSDsluCounter, 19400 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5917 SdHoareTripleChecker+Valid, 26580 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:26:36,347 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5917 Valid, 26580 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:26:36,354 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8086 states.
[2023-11-29 02:26:36,397 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8086 to 4506.
[2023-11-29 02:26:36,401 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4506 states, 4505 states have (on average 1.6577136514983353) internal successors, (7468), 4505 states have internal predecessors, (7468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:36,407 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4506 states to 4506 states and 7468 transitions.
[2023-11-29 02:26:36,407 INFO  L78                 Accepts]: Start accepts. Automaton has 4506 states and 7468 transitions. Word has length 2988
[2023-11-29 02:26:36,408 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:26:36,408 INFO  L495      AbstractCegarLoop]: Abstraction has 4506 states and 7468 transitions.
[2023-11-29 02:26:36,409 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 528.8) internal successors, (2644), 5 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:36,409 INFO  L276                IsEmpty]: Start isEmpty. Operand 4506 states and 7468 transitions.
[2023-11-29 02:26:36,695 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2990
[2023-11-29 02:26:36,695 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:26:36,696 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:26:36,696 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2023-11-29 02:26:36,696 INFO  L420      AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:26:36,697 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:26:36,697 INFO  L85        PathProgramCache]: Analyzing trace with hash -1223463016, now seen corresponding path program 1 times
[2023-11-29 02:26:36,697 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:26:36,698 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140757057]
[2023-11-29 02:26:36,698 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:26:36,698 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:26:39,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:26:45,174 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked.
[2023-11-29 02:26:45,174 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:26:45,174 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140757057]
[2023-11-29 02:26:45,174 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140757057] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:26:45,174 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:26:45,175 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:26:45,175 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618216257]
[2023-11-29 02:26:45,175 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:26:45,176 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:26:45,176 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:26:45,178 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:26:45,179 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:26:45,179 INFO  L87              Difference]: Start difference. First operand 4506 states and 7468 transitions. Second operand  has 4 states, 4 states have (on average 662.25) internal successors, (2649), 4 states have internal predecessors, (2649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:45,311 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:26:45,311 INFO  L93              Difference]: Finished difference Result 11881 states and 19680 transitions.
[2023-11-29 02:26:45,311 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:26:45,312 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 662.25) internal successors, (2649), 4 states have internal predecessors, (2649), 0 states have call successors, (0), 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 2989
[2023-11-29 02:26:45,314 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:26:45,320 INFO  L225             Difference]: With dead ends: 11881
[2023-11-29 02:26:45,320 INFO  L226             Difference]: Without dead ends: 8086
[2023-11-29 02:26:45,323 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
[2023-11-29 02:26:45,323 INFO  L413           NwaCegarLoop]: 7171 mSDtfsCounter, 5913 mSDsluCounter, 13479 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5913 SdHoareTripleChecker+Valid, 20650 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
[2023-11-29 02:26:45,323 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5913 Valid, 20650 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:26:45,330 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8086 states.
[2023-11-29 02:26:45,372 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8086 to 4511.
[2023-11-29 02:26:45,376 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4511 states, 4510 states have (on average 1.6574279379157428) internal successors, (7475), 4510 states have internal predecessors, (7475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:45,381 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4511 states to 4511 states and 7475 transitions.
[2023-11-29 02:26:45,381 INFO  L78                 Accepts]: Start accepts. Automaton has 4511 states and 7475 transitions. Word has length 2989
[2023-11-29 02:26:45,383 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:26:45,383 INFO  L495      AbstractCegarLoop]: Abstraction has 4511 states and 7475 transitions.
[2023-11-29 02:26:45,383 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 662.25) internal successors, (2649), 4 states have internal predecessors, (2649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:45,384 INFO  L276                IsEmpty]: Start isEmpty. Operand 4511 states and 7475 transitions.
[2023-11-29 02:26:45,425 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2991
[2023-11-29 02:26:45,426 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:26:45,426 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:26:45,426 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2023-11-29 02:26:45,427 INFO  L420      AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:26:45,427 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:26:45,427 INFO  L85        PathProgramCache]: Analyzing trace with hash -648007138, now seen corresponding path program 1 times
[2023-11-29 02:26:45,427 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:26:45,427 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056212614]
[2023-11-29 02:26:45,428 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:26:45,428 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:26:48,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:26:53,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked.
[2023-11-29 02:26:53,987 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:26:53,987 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056212614]
[2023-11-29 02:26:53,987 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056212614] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:26:53,987 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:26:53,988 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:26:53,988 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142591075]
[2023-11-29 02:26:53,988 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:26:53,989 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:26:53,989 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:26:54,004 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:26:54,004 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:26:54,004 INFO  L87              Difference]: Start difference. First operand 4511 states and 7475 transitions. Second operand  has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:54,134 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:26:54,134 INFO  L93              Difference]: Finished difference Result 11889 states and 19690 transitions.
[2023-11-29 02:26:54,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:26:54,135 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 0 states have call successors, (0), 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 2990
[2023-11-29 02:26:54,137 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:26:54,143 INFO  L225             Difference]: With dead ends: 11889
[2023-11-29 02:26:54,143 INFO  L226             Difference]: Without dead ends: 8083
[2023-11-29 02:26:54,146 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
[2023-11-29 02:26:54,147 INFO  L413           NwaCegarLoop]: 7162 mSDtfsCounter, 5907 mSDsluCounter, 13468 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5907 SdHoareTripleChecker+Valid, 20630 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:26:54,147 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5907 Valid, 20630 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:26:54,154 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8083 states.
[2023-11-29 02:26:54,196 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8083 to 4513.
[2023-11-29 02:26:54,200 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4513 states, 4512 states have (on average 1.657136524822695) internal successors, (7477), 4512 states have internal predecessors, (7477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:54,205 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4513 states to 4513 states and 7477 transitions.
[2023-11-29 02:26:54,206 INFO  L78                 Accepts]: Start accepts. Automaton has 4513 states and 7477 transitions. Word has length 2990
[2023-11-29 02:26:54,207 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:26:54,207 INFO  L495      AbstractCegarLoop]: Abstraction has 4513 states and 7477 transitions.
[2023-11-29 02:26:54,208 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:26:54,208 INFO  L276                IsEmpty]: Start isEmpty. Operand 4513 states and 7477 transitions.
[2023-11-29 02:26:54,249 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2992
[2023-11-29 02:26:54,250 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:26:54,250 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:26:54,250 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2023-11-29 02:26:54,251 INFO  L420      AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:26:54,251 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:26:54,251 INFO  L85        PathProgramCache]: Analyzing trace with hash 522054388, now seen corresponding path program 1 times
[2023-11-29 02:26:54,251 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:26:54,251 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039956722]
[2023-11-29 02:26:54,252 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:26:54,252 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:26:57,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:27:03,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked.
[2023-11-29 02:27:03,163 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:27:03,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039956722]
[2023-11-29 02:27:03,163 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039956722] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:27:03,163 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:27:03,164 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:27:03,164 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711324188]
[2023-11-29 02:27:03,164 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:27:03,165 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:27:03,165 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:27:03,167 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:27:03,167 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:27:03,168 INFO  L87              Difference]: Start difference. First operand 4513 states and 7477 transitions. Second operand  has 5 states, 5 states have (on average 531.0) internal successors, (2655), 5 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:03,352 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:27:03,352 INFO  L93              Difference]: Finished difference Result 11902 states and 19707 transitions.
[2023-11-29 02:27:03,352 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:27:03,353 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 531.0) internal successors, (2655), 5 states have internal predecessors, (2655), 0 states have call successors, (0), 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 2991
[2023-11-29 02:27:03,355 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:27:03,360 INFO  L225             Difference]: With dead ends: 11902
[2023-11-29 02:27:03,360 INFO  L226             Difference]: Without dead ends: 8094
[2023-11-29 02:27:03,362 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:27:03,362 INFO  L413           NwaCegarLoop]: 7160 mSDtfsCounter, 5911 mSDsluCounter, 19374 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5911 SdHoareTripleChecker+Valid, 26534 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:27:03,363 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5911 Valid, 26534 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:27:03,369 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8094 states.
[2023-11-29 02:27:03,409 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8094 to 4516.
[2023-11-29 02:27:03,412 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4516 states, 4515 states have (on average 1.6571428571428573) internal successors, (7482), 4515 states have internal predecessors, (7482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:03,418 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 7482 transitions.
[2023-11-29 02:27:03,418 INFO  L78                 Accepts]: Start accepts. Automaton has 4516 states and 7482 transitions. Word has length 2991
[2023-11-29 02:27:03,419 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:27:03,419 INFO  L495      AbstractCegarLoop]: Abstraction has 4516 states and 7482 transitions.
[2023-11-29 02:27:03,420 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 531.0) internal successors, (2655), 5 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:03,420 INFO  L276                IsEmpty]: Start isEmpty. Operand 4516 states and 7482 transitions.
[2023-11-29 02:27:03,460 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2993
[2023-11-29 02:27:03,461 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:27:03,462 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:27:03,462 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2023-11-29 02:27:03,462 INFO  L420      AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:27:03,462 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:27:03,462 INFO  L85        PathProgramCache]: Analyzing trace with hash 1411045574, now seen corresponding path program 1 times
[2023-11-29 02:27:03,462 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:27:03,462 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017814684]
[2023-11-29 02:27:03,463 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:27:03,463 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:27:06,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:27:12,260 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked.
[2023-11-29 02:27:12,260 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:27:12,260 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017814684]
[2023-11-29 02:27:12,260 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017814684] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:27:12,260 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:27:12,261 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:27:12,261 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281229450]
[2023-11-29 02:27:12,261 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:27:12,263 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:27:12,263 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:27:12,264 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:27:12,264 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:27:12,265 INFO  L87              Difference]: Start difference. First operand 4516 states and 7482 transitions. Second operand  has 4 states, 4 states have (on average 664.5) internal successors, (2658), 4 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:12,400 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:27:12,400 INFO  L93              Difference]: Finished difference Result 11904 states and 19711 transitions.
[2023-11-29 02:27:12,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:27:12,401 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 664.5) internal successors, (2658), 4 states have internal predecessors, (2658), 0 states have call successors, (0), 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 2992
[2023-11-29 02:27:12,403 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:27:12,409 INFO  L225             Difference]: With dead ends: 11904
[2023-11-29 02:27:12,409 INFO  L226             Difference]: Without dead ends: 8087
[2023-11-29 02:27:12,412 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
[2023-11-29 02:27:12,412 INFO  L413           NwaCegarLoop]: 7152 mSDtfsCounter, 5904 mSDsluCounter, 13458 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5904 SdHoareTripleChecker+Valid, 20610 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:27:12,413 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5904 Valid, 20610 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:27:12,420 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8087 states.
[2023-11-29 02:27:12,463 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8087 to 4518.
[2023-11-29 02:27:12,467 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4518 states, 4517 states have (on average 1.6568518928492362) internal successors, (7484), 4517 states have internal predecessors, (7484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:12,472 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 7484 transitions.
[2023-11-29 02:27:12,473 INFO  L78                 Accepts]: Start accepts. Automaton has 4518 states and 7484 transitions. Word has length 2992
[2023-11-29 02:27:12,474 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:27:12,474 INFO  L495      AbstractCegarLoop]: Abstraction has 4518 states and 7484 transitions.
[2023-11-29 02:27:12,475 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 664.5) internal successors, (2658), 4 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:12,475 INFO  L276                IsEmpty]: Start isEmpty. Operand 4518 states and 7484 transitions.
[2023-11-29 02:27:12,755 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2994
[2023-11-29 02:27:12,755 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:27:12,755 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:27:12,756 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2023-11-29 02:27:12,756 INFO  L420      AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:27:12,756 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:27:12,756 INFO  L85        PathProgramCache]: Analyzing trace with hash -338675250, now seen corresponding path program 1 times
[2023-11-29 02:27:12,756 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:27:12,756 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869707861]
[2023-11-29 02:27:12,757 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:27:12,757 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:27:15,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:27:21,485 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked.
[2023-11-29 02:27:21,485 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:27:21,485 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869707861]
[2023-11-29 02:27:21,485 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869707861] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:27:21,485 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:27:21,486 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:27:21,486 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173854715]
[2023-11-29 02:27:21,486 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:27:21,488 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:27:21,488 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:27:21,490 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:27:21,491 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:27:21,491 INFO  L87              Difference]: Start difference. First operand 4518 states and 7484 transitions. Second operand  has 5 states, 5 states have (on average 532.2) internal successors, (2661), 5 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:21,683 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:27:21,683 INFO  L93              Difference]: Finished difference Result 11917 states and 19728 transitions.
[2023-11-29 02:27:21,683 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:27:21,684 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 532.2) internal successors, (2661), 5 states have internal predecessors, (2661), 0 states have call successors, (0), 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 2993
[2023-11-29 02:27:21,686 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:27:21,693 INFO  L225             Difference]: With dead ends: 11917
[2023-11-29 02:27:21,693 INFO  L226             Difference]: Without dead ends: 8098
[2023-11-29 02:27:21,696 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:27:21,696 INFO  L413           NwaCegarLoop]: 7150 mSDtfsCounter, 5908 mSDsluCounter, 19361 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5908 SdHoareTripleChecker+Valid, 26511 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:27:21,696 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5908 Valid, 26511 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:27:21,703 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8098 states.
[2023-11-29 02:27:21,745 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8098 to 4521.
[2023-11-29 02:27:21,749 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4521 states, 4520 states have (on average 1.656858407079646) internal successors, (7489), 4520 states have internal predecessors, (7489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:21,754 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4521 states to 4521 states and 7489 transitions.
[2023-11-29 02:27:21,754 INFO  L78                 Accepts]: Start accepts. Automaton has 4521 states and 7489 transitions. Word has length 2993
[2023-11-29 02:27:21,756 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:27:21,756 INFO  L495      AbstractCegarLoop]: Abstraction has 4521 states and 7489 transitions.
[2023-11-29 02:27:21,757 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 532.2) internal successors, (2661), 5 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:21,757 INFO  L276                IsEmpty]: Start isEmpty. Operand 4521 states and 7489 transitions.
[2023-11-29 02:27:21,797 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2995
[2023-11-29 02:27:21,797 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:27:21,798 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:27:21,798 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2023-11-29 02:27:21,798 INFO  L420      AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:27:21,798 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:27:21,799 INFO  L85        PathProgramCache]: Analyzing trace with hash 1488971500, now seen corresponding path program 1 times
[2023-11-29 02:27:21,799 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:27:21,799 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426144053]
[2023-11-29 02:27:21,799 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:27:21,799 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:27:24,840 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:27:30,389 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked.
[2023-11-29 02:27:30,390 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:27:30,390 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426144053]
[2023-11-29 02:27:30,390 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426144053] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:27:30,390 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:27:30,391 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:27:30,391 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187813913]
[2023-11-29 02:27:30,391 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:27:30,393 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:27:30,393 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:27:30,394 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:27:30,394 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:27:30,395 INFO  L87              Difference]: Start difference. First operand 4521 states and 7489 transitions. Second operand  has 4 states, 4 states have (on average 666.5) internal successors, (2666), 4 states have internal predecessors, (2666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:30,531 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:27:30,532 INFO  L93              Difference]: Finished difference Result 11926 states and 19743 transitions.
[2023-11-29 02:27:30,532 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:27:30,533 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 666.5) internal successors, (2666), 4 states have internal predecessors, (2666), 0 states have call successors, (0), 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 2994
[2023-11-29 02:27:30,535 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:27:30,541 INFO  L225             Difference]: With dead ends: 11926
[2023-11-29 02:27:30,542 INFO  L226             Difference]: Without dead ends: 8098
[2023-11-29 02:27:30,545 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
[2023-11-29 02:27:30,545 INFO  L413           NwaCegarLoop]: 7141 mSDtfsCounter, 5904 mSDsluCounter, 13449 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5904 SdHoareTripleChecker+Valid, 20590 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
[2023-11-29 02:27:30,546 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5904 Valid, 20590 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:27:30,553 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8098 states.
[2023-11-29 02:27:30,594 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8098 to 4526.
[2023-11-29 02:27:30,598 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4526 states, 4525 states have (on average 1.656574585635359) internal successors, (7496), 4525 states have internal predecessors, (7496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:30,604 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 7496 transitions.
[2023-11-29 02:27:30,604 INFO  L78                 Accepts]: Start accepts. Automaton has 4526 states and 7496 transitions. Word has length 2994
[2023-11-29 02:27:30,605 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:27:30,605 INFO  L495      AbstractCegarLoop]: Abstraction has 4526 states and 7496 transitions.
[2023-11-29 02:27:30,606 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 666.5) internal successors, (2666), 4 states have internal predecessors, (2666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:30,606 INFO  L276                IsEmpty]: Start isEmpty. Operand 4526 states and 7496 transitions.
[2023-11-29 02:27:30,647 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2996
[2023-11-29 02:27:30,647 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:27:30,647 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:27:30,648 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2023-11-29 02:27:30,648 INFO  L420      AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:27:30,648 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:27:30,648 INFO  L85        PathProgramCache]: Analyzing trace with hash 520515906, now seen corresponding path program 1 times
[2023-11-29 02:27:30,648 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:27:30,648 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206467826]
[2023-11-29 02:27:30,649 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:27:30,649 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:27:33,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:27:39,078 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked.
[2023-11-29 02:27:39,078 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:27:39,078 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206467826]
[2023-11-29 02:27:39,078 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206467826] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:27:39,078 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:27:39,079 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:27:39,079 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661086183]
[2023-11-29 02:27:39,079 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:27:39,081 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:27:39,082 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:27:39,084 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:27:39,084 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:27:39,085 INFO  L87              Difference]: Start difference. First operand 4526 states and 7496 transitions. Second operand  has 4 states, 4 states have (on average 667.25) internal successors, (2669), 4 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:39,220 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:27:39,220 INFO  L93              Difference]: Finished difference Result 11934 states and 19753 transitions.
[2023-11-29 02:27:39,221 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:27:39,221 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 667.25) internal successors, (2669), 4 states have internal predecessors, (2669), 0 states have call successors, (0), 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 2995
[2023-11-29 02:27:39,223 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:27:39,229 INFO  L225             Difference]: With dead ends: 11934
[2023-11-29 02:27:39,229 INFO  L226             Difference]: Without dead ends: 8095
[2023-11-29 02:27:39,233 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
[2023-11-29 02:27:39,233 INFO  L413           NwaCegarLoop]: 7132 mSDtfsCounter, 5898 mSDsluCounter, 13438 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5898 SdHoareTripleChecker+Valid, 20570 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:27:39,233 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5898 Valid, 20570 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:27:39,240 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8095 states.
[2023-11-29 02:27:39,285 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8095 to 4528.
[2023-11-29 02:27:39,289 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4528 states, 4527 states have (on average 1.6562845151314336) internal successors, (7498), 4527 states have internal predecessors, (7498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:39,294 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 7498 transitions.
[2023-11-29 02:27:39,294 INFO  L78                 Accepts]: Start accepts. Automaton has 4528 states and 7498 transitions. Word has length 2995
[2023-11-29 02:27:39,296 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:27:39,296 INFO  L495      AbstractCegarLoop]: Abstraction has 4528 states and 7498 transitions.
[2023-11-29 02:27:39,296 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 667.25) internal successors, (2669), 4 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:39,296 INFO  L276                IsEmpty]: Start isEmpty. Operand 4528 states and 7498 transitions.
[2023-11-29 02:27:39,361 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2997
[2023-11-29 02:27:39,361 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:27:39,362 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:27:39,362 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2023-11-29 02:27:39,362 INFO  L420      AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:27:39,362 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:27:39,363 INFO  L85        PathProgramCache]: Analyzing trace with hash 343251154, now seen corresponding path program 1 times
[2023-11-29 02:27:39,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:27:39,363 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891830408]
[2023-11-29 02:27:39,363 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:27:39,363 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:27:42,987 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:27:48,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked.
[2023-11-29 02:27:48,855 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:27:48,855 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891830408]
[2023-11-29 02:27:48,855 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891830408] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:27:48,855 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:27:48,856 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:27:48,856 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655216638]
[2023-11-29 02:27:48,856 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:27:48,857 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:27:48,857 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:27:48,859 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:27:48,859 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:27:48,860 INFO  L87              Difference]: Start difference. First operand 4528 states and 7498 transitions. Second operand  has 5 states, 5 states have (on average 534.4) internal successors, (2672), 5 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:49,049 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:27:49,050 INFO  L93              Difference]: Finished difference Result 11947 states and 19770 transitions.
[2023-11-29 02:27:49,050 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:27:49,050 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 534.4) internal successors, (2672), 5 states have internal predecessors, (2672), 0 states have call successors, (0), 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 2996
[2023-11-29 02:27:49,053 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:27:49,059 INFO  L225             Difference]: With dead ends: 11947
[2023-11-29 02:27:49,059 INFO  L226             Difference]: Without dead ends: 8106
[2023-11-29 02:27:49,062 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:27:49,062 INFO  L413           NwaCegarLoop]: 7130 mSDtfsCounter, 5901 mSDsluCounter, 20561 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5901 SdHoareTripleChecker+Valid, 27691 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-29 02:27:49,062 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5901 Valid, 27691 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-29 02:27:49,070 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8106 states.
[2023-11-29 02:27:49,109 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8106 to 4531.
[2023-11-29 02:27:49,113 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4531 states, 4530 states have (on average 1.6562913907284769) internal successors, (7503), 4530 states have internal predecessors, (7503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:49,118 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4531 states to 4531 states and 7503 transitions.
[2023-11-29 02:27:49,118 INFO  L78                 Accepts]: Start accepts. Automaton has 4531 states and 7503 transitions. Word has length 2996
[2023-11-29 02:27:49,119 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:27:49,119 INFO  L495      AbstractCegarLoop]: Abstraction has 4531 states and 7503 transitions.
[2023-11-29 02:27:49,120 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 534.4) internal successors, (2672), 5 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:49,120 INFO  L276                IsEmpty]: Start isEmpty. Operand 4531 states and 7503 transitions.
[2023-11-29 02:27:49,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2998
[2023-11-29 02:27:49,157 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:27:49,157 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:27:49,157 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2023-11-29 02:27:49,158 INFO  L420      AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:27:49,158 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:27:49,158 INFO  L85        PathProgramCache]: Analyzing trace with hash 1852498524, now seen corresponding path program 1 times
[2023-11-29 02:27:49,158 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:27:49,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724819874]
[2023-11-29 02:27:49,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:27:49,159 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:27:51,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:27:57,415 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked.
[2023-11-29 02:27:57,415 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:27:57,415 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724819874]
[2023-11-29 02:27:57,416 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724819874] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:27:57,416 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:27:57,417 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:27:57,417 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878710792]
[2023-11-29 02:27:57,417 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:27:57,418 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:27:57,418 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:27:57,420 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:27:57,420 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:27:57,421 INFO  L87              Difference]: Start difference. First operand 4531 states and 7503 transitions. Second operand  has 4 states, 4 states have (on average 669.25) internal successors, (2677), 4 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:57,561 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:27:57,561 INFO  L93              Difference]: Finished difference Result 11956 states and 19785 transitions.
[2023-11-29 02:27:57,562 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:27:57,562 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 669.25) internal successors, (2677), 4 states have internal predecessors, (2677), 0 states have call successors, (0), 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 2997
[2023-11-29 02:27:57,564 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:27:57,570 INFO  L225             Difference]: With dead ends: 11956
[2023-11-29 02:27:57,570 INFO  L226             Difference]: Without dead ends: 8106
[2023-11-29 02:27:57,573 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
[2023-11-29 02:27:57,573 INFO  L413           NwaCegarLoop]: 7121 mSDtfsCounter, 5898 mSDsluCounter, 13429 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5898 SdHoareTripleChecker+Valid, 20550 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
[2023-11-29 02:27:57,573 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5898 Valid, 20550 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:27:57,580 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8106 states.
[2023-11-29 02:27:57,623 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8106 to 4536.
[2023-11-29 02:27:57,627 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4536 states, 4535 states have (on average 1.6560088202866594) internal successors, (7510), 4535 states have internal predecessors, (7510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:57,632 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 7510 transitions.
[2023-11-29 02:27:57,632 INFO  L78                 Accepts]: Start accepts. Automaton has 4536 states and 7510 transitions. Word has length 2997
[2023-11-29 02:27:57,634 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:27:57,634 INFO  L495      AbstractCegarLoop]: Abstraction has 4536 states and 7510 transitions.
[2023-11-29 02:27:57,635 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 669.25) internal successors, (2677), 4 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:27:57,635 INFO  L276                IsEmpty]: Start isEmpty. Operand 4536 states and 7510 transitions.
[2023-11-29 02:27:57,676 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2999
[2023-11-29 02:27:57,677 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:27:57,677 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:27:57,677 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45
[2023-11-29 02:27:57,677 INFO  L420      AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:27:57,678 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:27:57,678 INFO  L85        PathProgramCache]: Analyzing trace with hash 1622973918, now seen corresponding path program 1 times
[2023-11-29 02:27:57,678 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:27:57,678 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744171680]
[2023-11-29 02:27:57,678 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:27:57,678 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:28:00,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:28:05,604 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked.
[2023-11-29 02:28:05,604 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:28:05,604 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744171680]
[2023-11-29 02:28:05,604 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744171680] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:28:05,604 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:28:05,604 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:28:05,605 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583701424]
[2023-11-29 02:28:05,605 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:28:05,606 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:28:05,606 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:28:05,607 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:28:05,607 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:28:05,608 INFO  L87              Difference]: Start difference. First operand 4536 states and 7510 transitions. Second operand  has 4 states, 4 states have (on average 670.0) internal successors, (2680), 4 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:05,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:28:05,732 INFO  L93              Difference]: Finished difference Result 11964 states and 19795 transitions.
[2023-11-29 02:28:05,733 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:28:05,733 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 670.0) internal successors, (2680), 4 states have internal predecessors, (2680), 0 states have call successors, (0), 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 2998
[2023-11-29 02:28:05,735 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:28:05,742 INFO  L225             Difference]: With dead ends: 11964
[2023-11-29 02:28:05,742 INFO  L226             Difference]: Without dead ends: 8103
[2023-11-29 02:28:05,745 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
[2023-11-29 02:28:05,745 INFO  L413           NwaCegarLoop]: 7112 mSDtfsCounter, 5892 mSDsluCounter, 13418 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5892 SdHoareTripleChecker+Valid, 20530 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:28:05,745 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5892 Valid, 20530 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:28:05,753 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8103 states.
[2023-11-29 02:28:05,795 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8103 to 4538.
[2023-11-29 02:28:05,799 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4538 states, 4537 states have (on average 1.6557196385276614) internal successors, (7512), 4537 states have internal predecessors, (7512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:05,804 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 7512 transitions.
[2023-11-29 02:28:05,805 INFO  L78                 Accepts]: Start accepts. Automaton has 4538 states and 7512 transitions. Word has length 2998
[2023-11-29 02:28:05,806 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:28:05,806 INFO  L495      AbstractCegarLoop]: Abstraction has 4538 states and 7512 transitions.
[2023-11-29 02:28:05,807 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 670.0) internal successors, (2680), 4 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:05,807 INFO  L276                IsEmpty]: Start isEmpty. Operand 4538 states and 7512 transitions.
[2023-11-29 02:28:05,849 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3000
[2023-11-29 02:28:05,849 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:28:05,849 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:28:05,849 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2023-11-29 02:28:05,850 INFO  L420      AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:28:05,850 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:28:05,850 INFO  L85        PathProgramCache]: Analyzing trace with hash 1831212982, now seen corresponding path program 1 times
[2023-11-29 02:28:05,850 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:28:05,851 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445248849]
[2023-11-29 02:28:05,851 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:28:05,851 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:28:09,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:28:15,299 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked.
[2023-11-29 02:28:15,299 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:28:15,299 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445248849]
[2023-11-29 02:28:15,300 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445248849] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:28:15,300 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:28:15,300 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:28:15,300 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195091162]
[2023-11-29 02:28:15,300 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:28:15,302 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:28:15,302 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:28:15,303 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:28:15,303 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:28:15,304 INFO  L87              Difference]: Start difference. First operand 4538 states and 7512 transitions. Second operand  has 5 states, 5 states have (on average 536.6) internal successors, (2683), 5 states have internal predecessors, (2683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:15,481 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:28:15,481 INFO  L93              Difference]: Finished difference Result 11977 states and 19812 transitions.
[2023-11-29 02:28:15,481 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:28:15,482 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 536.6) internal successors, (2683), 5 states have internal predecessors, (2683), 0 states have call successors, (0), 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 2999
[2023-11-29 02:28:15,484 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:28:15,490 INFO  L225             Difference]: With dead ends: 11977
[2023-11-29 02:28:15,490 INFO  L226             Difference]: Without dead ends: 8114
[2023-11-29 02:28:15,494 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:28:15,494 INFO  L413           NwaCegarLoop]: 7110 mSDtfsCounter, 5895 mSDsluCounter, 20521 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5895 SdHoareTripleChecker+Valid, 27631 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:28:15,495 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5895 Valid, 27631 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:28:15,502 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8114 states.
[2023-11-29 02:28:15,545 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8114 to 4541.
[2023-11-29 02:28:15,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4541 states, 4540 states have (on average 1.655726872246696) internal successors, (7517), 4540 states have internal predecessors, (7517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:15,555 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 4541 states and 7517 transitions.
[2023-11-29 02:28:15,555 INFO  L78                 Accepts]: Start accepts. Automaton has 4541 states and 7517 transitions. Word has length 2999
[2023-11-29 02:28:15,556 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:28:15,556 INFO  L495      AbstractCegarLoop]: Abstraction has 4541 states and 7517 transitions.
[2023-11-29 02:28:15,557 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 536.6) internal successors, (2683), 5 states have internal predecessors, (2683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:15,557 INFO  L276                IsEmpty]: Start isEmpty. Operand 4541 states and 7517 transitions.
[2023-11-29 02:28:15,600 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3001
[2023-11-29 02:28:15,600 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:28:15,601 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:28:15,601 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47
[2023-11-29 02:28:15,601 INFO  L420      AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:28:15,601 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:28:15,601 INFO  L85        PathProgramCache]: Analyzing trace with hash -1608399484, now seen corresponding path program 1 times
[2023-11-29 02:28:15,601 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:28:15,602 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345108511]
[2023-11-29 02:28:15,602 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:28:15,602 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:28:18,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:28:23,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked.
[2023-11-29 02:28:23,830 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:28:23,830 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345108511]
[2023-11-29 02:28:23,830 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345108511] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:28:23,830 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:28:23,831 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:28:23,831 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558420076]
[2023-11-29 02:28:23,831 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:28:23,832 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:28:23,832 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:28:23,834 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:28:23,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:28:23,835 INFO  L87              Difference]: Start difference. First operand 4541 states and 7517 transitions. Second operand  has 4 states, 4 states have (on average 671.5) internal successors, (2686), 4 states have internal predecessors, (2686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:23,968 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:28:23,968 INFO  L93              Difference]: Finished difference Result 11983 states and 19822 transitions.
[2023-11-29 02:28:23,968 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:28:23,969 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 671.5) internal successors, (2686), 4 states have internal predecessors, (2686), 0 states have call successors, (0), 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 3000
[2023-11-29 02:28:23,971 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:28:23,978 INFO  L225             Difference]: With dead ends: 11983
[2023-11-29 02:28:23,978 INFO  L226             Difference]: Without dead ends: 8111
[2023-11-29 02:28:23,981 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
[2023-11-29 02:28:23,982 INFO  L413           NwaCegarLoop]: 7106 mSDtfsCounter, 5894 mSDsluCounter, 13414 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5894 SdHoareTripleChecker+Valid, 20520 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
[2023-11-29 02:28:23,982 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5894 Valid, 20520 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:28:23,989 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8111 states.
[2023-11-29 02:28:24,032 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8111 to 4543.
[2023-11-29 02:28:24,036 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4543 states, 4542 states have (on average 1.6554381329810657) internal successors, (7519), 4542 states have internal predecessors, (7519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:24,041 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4543 states to 4543 states and 7519 transitions.
[2023-11-29 02:28:24,041 INFO  L78                 Accepts]: Start accepts. Automaton has 4543 states and 7519 transitions. Word has length 3000
[2023-11-29 02:28:24,043 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:28:24,043 INFO  L495      AbstractCegarLoop]: Abstraction has 4543 states and 7519 transitions.
[2023-11-29 02:28:24,043 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 671.5) internal successors, (2686), 4 states have internal predecessors, (2686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:24,043 INFO  L276                IsEmpty]: Start isEmpty. Operand 4543 states and 7519 transitions.
[2023-11-29 02:28:24,086 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3002
[2023-11-29 02:28:24,086 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:28:24,087 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:28:24,087 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48
[2023-11-29 02:28:24,087 INFO  L420      AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:28:24,087 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:28:24,087 INFO  L85        PathProgramCache]: Analyzing trace with hash 169366802, now seen corresponding path program 1 times
[2023-11-29 02:28:24,087 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:28:24,088 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903472773]
[2023-11-29 02:28:24,088 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:28:24,088 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:28:27,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:28:33,100 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-11-29 02:28:33,100 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:28:33,100 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903472773]
[2023-11-29 02:28:33,100 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903472773] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:28:33,100 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:28:33,101 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:28:33,101 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93883078]
[2023-11-29 02:28:33,101 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:28:33,102 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:28:33,102 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:28:33,103 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:28:33,104 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:28:33,104 INFO  L87              Difference]: Start difference. First operand 4543 states and 7519 transitions. Second operand  has 4 states, 4 states have (on average 672.75) internal successors, (2691), 4 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:33,234 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:28:33,234 INFO  L93              Difference]: Finished difference Result 11992 states and 19833 transitions.
[2023-11-29 02:28:33,234 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:28:33,235 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 672.75) internal successors, (2691), 4 states have internal predecessors, (2691), 0 states have call successors, (0), 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 3001
[2023-11-29 02:28:33,237 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:28:33,243 INFO  L225             Difference]: With dead ends: 11992
[2023-11-29 02:28:33,243 INFO  L226             Difference]: Without dead ends: 8115
[2023-11-29 02:28:33,246 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
[2023-11-29 02:28:33,246 INFO  L413           NwaCegarLoop]: 7096 mSDtfsCounter, 5889 mSDsluCounter, 13404 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5889 SdHoareTripleChecker+Valid, 20500 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
[2023-11-29 02:28:33,247 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5889 Valid, 20500 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:28:33,254 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8115 states.
[2023-11-29 02:28:33,296 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 4548.
[2023-11-29 02:28:33,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4548 states, 4547 states have (on average 1.6551572465361777) internal successors, (7526), 4547 states have internal predecessors, (7526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:33,305 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 7526 transitions.
[2023-11-29 02:28:33,305 INFO  L78                 Accepts]: Start accepts. Automaton has 4548 states and 7526 transitions. Word has length 3001
[2023-11-29 02:28:33,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:28:33,307 INFO  L495      AbstractCegarLoop]: Abstraction has 4548 states and 7526 transitions.
[2023-11-29 02:28:33,307 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 672.75) internal successors, (2691), 4 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:33,308 INFO  L276                IsEmpty]: Start isEmpty. Operand 4548 states and 7526 transitions.
[2023-11-29 02:28:33,350 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3003
[2023-11-29 02:28:33,350 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:28:33,351 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:28:33,351 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2023-11-29 02:28:33,351 INFO  L420      AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:28:33,351 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:28:33,352 INFO  L85        PathProgramCache]: Analyzing trace with hash -307482670, now seen corresponding path program 1 times
[2023-11-29 02:28:33,352 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:28:33,352 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659565600]
[2023-11-29 02:28:33,352 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:28:33,352 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:28:37,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:28:42,184 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked.
[2023-11-29 02:28:42,184 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:28:42,184 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659565600]
[2023-11-29 02:28:42,184 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659565600] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:28:42,184 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:28:42,185 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:28:42,185 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365187218]
[2023-11-29 02:28:42,185 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:28:42,187 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:28:42,187 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:28:42,188 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:28:42,188 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:28:42,189 INFO  L87              Difference]: Start difference. First operand 4548 states and 7526 transitions. Second operand  has 4 states, 4 states have (on average 673.5) internal successors, (2694), 4 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:42,318 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:28:42,318 INFO  L93              Difference]: Finished difference Result 12000 states and 19843 transitions.
[2023-11-29 02:28:42,318 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:28:42,319 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 673.5) internal successors, (2694), 4 states have internal predecessors, (2694), 0 states have call successors, (0), 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 3002
[2023-11-29 02:28:42,321 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:28:42,326 INFO  L225             Difference]: With dead ends: 12000
[2023-11-29 02:28:42,326 INFO  L226             Difference]: Without dead ends: 8112
[2023-11-29 02:28:42,329 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
[2023-11-29 02:28:42,330 INFO  L413           NwaCegarLoop]: 7087 mSDtfsCounter, 5883 mSDsluCounter, 13393 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5883 SdHoareTripleChecker+Valid, 20480 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:28:42,330 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5883 Valid, 20480 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:28:42,336 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8112 states.
[2023-11-29 02:28:42,379 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8112 to 4550.
[2023-11-29 02:28:42,383 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4550 states, 4549 states have (on average 1.6548692020224225) internal successors, (7528), 4549 states have internal predecessors, (7528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:42,388 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4550 states to 4550 states and 7528 transitions.
[2023-11-29 02:28:42,388 INFO  L78                 Accepts]: Start accepts. Automaton has 4550 states and 7528 transitions. Word has length 3002
[2023-11-29 02:28:42,390 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:28:42,390 INFO  L495      AbstractCegarLoop]: Abstraction has 4550 states and 7528 transitions.
[2023-11-29 02:28:42,391 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 673.5) internal successors, (2694), 4 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:42,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 4550 states and 7528 transitions.
[2023-11-29 02:28:42,433 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3004
[2023-11-29 02:28:42,434 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:28:42,434 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:28:42,434 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50
[2023-11-29 02:28:42,435 INFO  L420      AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:28:42,435 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:28:42,435 INFO  L85        PathProgramCache]: Analyzing trace with hash -1998357332, now seen corresponding path program 1 times
[2023-11-29 02:28:42,435 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:28:42,435 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369014771]
[2023-11-29 02:28:42,435 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:28:42,436 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:28:46,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:28:52,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked.
[2023-11-29 02:28:52,476 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:28:52,476 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369014771]
[2023-11-29 02:28:52,476 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369014771] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:28:52,476 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:28:52,477 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:28:52,477 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832699189]
[2023-11-29 02:28:52,477 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:28:52,478 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:28:52,479 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:28:52,480 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:28:52,480 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:28:52,481 INFO  L87              Difference]: Start difference. First operand 4550 states and 7528 transitions. Second operand  has 5 states, 5 states have (on average 539.4) internal successors, (2697), 5 states have internal predecessors, (2697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:52,651 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:28:52,651 INFO  L93              Difference]: Finished difference Result 12013 states and 19860 transitions.
[2023-11-29 02:28:52,651 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:28:52,652 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 539.4) internal successors, (2697), 5 states have internal predecessors, (2697), 0 states have call successors, (0), 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 3003
[2023-11-29 02:28:52,653 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:28:52,659 INFO  L225             Difference]: With dead ends: 12013
[2023-11-29 02:28:52,659 INFO  L226             Difference]: Without dead ends: 8123
[2023-11-29 02:28:52,662 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:28:52,662 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 5886 mSDsluCounter, 20471 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5886 SdHoareTripleChecker+Valid, 27556 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:28:52,663 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5886 Valid, 27556 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:28:52,672 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8123 states.
[2023-11-29 02:28:52,713 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8123 to 4553.
[2023-11-29 02:28:52,717 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4553 states, 4552 states have (on average 1.6548769771528997) internal successors, (7533), 4552 states have internal predecessors, (7533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:52,722 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4553 states to 4553 states and 7533 transitions.
[2023-11-29 02:28:52,722 INFO  L78                 Accepts]: Start accepts. Automaton has 4553 states and 7533 transitions. Word has length 3003
[2023-11-29 02:28:52,723 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:28:52,723 INFO  L495      AbstractCegarLoop]: Abstraction has 4553 states and 7533 transitions.
[2023-11-29 02:28:52,724 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 539.4) internal successors, (2697), 5 states have internal predecessors, (2697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:28:52,724 INFO  L276                IsEmpty]: Start isEmpty. Operand 4553 states and 7533 transitions.
[2023-11-29 02:28:52,762 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3005
[2023-11-29 02:28:52,762 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:28:52,762 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:28:52,763 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51
[2023-11-29 02:28:52,763 INFO  L420      AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:28:52,763 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:28:52,763 INFO  L85        PathProgramCache]: Analyzing trace with hash -1451610634, now seen corresponding path program 1 times
[2023-11-29 02:28:52,763 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:28:52,763 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922534056]
[2023-11-29 02:28:52,764 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:28:52,764 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:28:56,268 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:29:01,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked.
[2023-11-29 02:29:01,945 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:29:01,945 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922534056]
[2023-11-29 02:29:01,945 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922534056] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:29:01,945 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:29:01,946 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:29:01,946 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443057275]
[2023-11-29 02:29:01,946 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:29:01,948 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:29:01,948 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:29:01,950 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:29:01,950 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:29:01,950 INFO  L87              Difference]: Start difference. First operand 4553 states and 7533 transitions. Second operand  has 4 states, 4 states have (on average 675.5) internal successors, (2702), 4 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:02,086 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:29:02,086 INFO  L93              Difference]: Finished difference Result 12022 states and 19875 transitions.
[2023-11-29 02:29:02,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:29:02,087 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 675.5) internal successors, (2702), 4 states have internal predecessors, (2702), 0 states have call successors, (0), 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 3004
[2023-11-29 02:29:02,089 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:29:02,094 INFO  L225             Difference]: With dead ends: 12022
[2023-11-29 02:29:02,094 INFO  L226             Difference]: Without dead ends: 8123
[2023-11-29 02:29:02,097 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:29:02,097 INFO  L413           NwaCegarLoop]: 7076 mSDtfsCounter, 5883 mSDsluCounter, 13384 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5883 SdHoareTripleChecker+Valid, 20460 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
[2023-11-29 02:29:02,097 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5883 Valid, 20460 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:29:02,104 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8123 states.
[2023-11-29 02:29:02,145 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8123 to 4558.
[2023-11-29 02:29:02,149 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4558 states, 4557 states have (on average 1.6545973228000879) internal successors, (7540), 4557 states have internal predecessors, (7540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:02,154 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4558 states to 4558 states and 7540 transitions.
[2023-11-29 02:29:02,154 INFO  L78                 Accepts]: Start accepts. Automaton has 4558 states and 7540 transitions. Word has length 3004
[2023-11-29 02:29:02,156 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:29:02,156 INFO  L495      AbstractCegarLoop]: Abstraction has 4558 states and 7540 transitions.
[2023-11-29 02:29:02,157 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 675.5) internal successors, (2702), 4 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:02,157 INFO  L276                IsEmpty]: Start isEmpty. Operand 4558 states and 7540 transitions.
[2023-11-29 02:29:02,197 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3006
[2023-11-29 02:29:02,197 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:29:02,197 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:29:02,198 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52
[2023-11-29 02:29:02,198 INFO  L420      AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:29:02,198 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:29:02,198 INFO  L85        PathProgramCache]: Analyzing trace with hash 873457822, now seen corresponding path program 1 times
[2023-11-29 02:29:02,198 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:29:02,198 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239929961]
[2023-11-29 02:29:02,199 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:29:02,199 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:29:05,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:29:11,013 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked.
[2023-11-29 02:29:11,013 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:29:11,013 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239929961]
[2023-11-29 02:29:11,013 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239929961] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:29:11,013 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:29:11,014 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:29:11,014 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349916757]
[2023-11-29 02:29:11,014 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:29:11,016 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:29:11,016 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:29:11,017 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:29:11,017 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:29:11,018 INFO  L87              Difference]: Start difference. First operand 4558 states and 7540 transitions. Second operand  has 4 states, 4 states have (on average 676.25) internal successors, (2705), 4 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:11,154 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:29:11,154 INFO  L93              Difference]: Finished difference Result 12030 states and 19885 transitions.
[2023-11-29 02:29:11,155 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:29:11,155 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 676.25) internal successors, (2705), 4 states have internal predecessors, (2705), 0 states have call successors, (0), 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 3005
[2023-11-29 02:29:11,157 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:29:11,163 INFO  L225             Difference]: With dead ends: 12030
[2023-11-29 02:29:11,163 INFO  L226             Difference]: Without dead ends: 8120
[2023-11-29 02:29:11,166 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
[2023-11-29 02:29:11,167 INFO  L413           NwaCegarLoop]: 7067 mSDtfsCounter, 5877 mSDsluCounter, 13373 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5877 SdHoareTripleChecker+Valid, 20440 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:29:11,167 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5877 Valid, 20440 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:29:11,174 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8120 states.
[2023-11-29 02:29:11,218 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8120 to 4560.
[2023-11-29 02:29:11,222 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4560 states, 4559 states have (on average 1.654310155735907) internal successors, (7542), 4559 states have internal predecessors, (7542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:11,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4560 states to 4560 states and 7542 transitions.
[2023-11-29 02:29:11,227 INFO  L78                 Accepts]: Start accepts. Automaton has 4560 states and 7542 transitions. Word has length 3005
[2023-11-29 02:29:11,229 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:29:11,229 INFO  L495      AbstractCegarLoop]: Abstraction has 4560 states and 7542 transitions.
[2023-11-29 02:29:11,229 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 676.25) internal successors, (2705), 4 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:11,230 INFO  L276                IsEmpty]: Start isEmpty. Operand 4560 states and 7542 transitions.
[2023-11-29 02:29:11,272 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3007
[2023-11-29 02:29:11,272 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:29:11,273 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:29:11,273 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2023-11-29 02:29:11,273 INFO  L420      AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:29:11,273 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:29:11,274 INFO  L85        PathProgramCache]: Analyzing trace with hash -1105735908, now seen corresponding path program 1 times
[2023-11-29 02:29:11,274 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:29:11,274 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670769781]
[2023-11-29 02:29:11,274 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:29:11,274 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:29:14,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:29:21,098 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked.
[2023-11-29 02:29:21,099 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:29:21,099 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670769781]
[2023-11-29 02:29:21,099 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670769781] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:29:21,099 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:29:21,100 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:29:21,100 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843506992]
[2023-11-29 02:29:21,100 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:29:21,102 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:29:21,102 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:29:21,104 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:29:21,104 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:29:21,104 INFO  L87              Difference]: Start difference. First operand 4560 states and 7542 transitions. Second operand  has 5 states, 5 states have (on average 541.6) internal successors, (2708), 5 states have internal predecessors, (2708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:21,285 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:29:21,285 INFO  L93              Difference]: Finished difference Result 12043 states and 19902 transitions.
[2023-11-29 02:29:21,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:29:21,286 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 541.6) internal successors, (2708), 5 states have internal predecessors, (2708), 0 states have call successors, (0), 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 3006
[2023-11-29 02:29:21,288 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:29:21,294 INFO  L225             Difference]: With dead ends: 12043
[2023-11-29 02:29:21,295 INFO  L226             Difference]: Without dead ends: 8131
[2023-11-29 02:29:21,298 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:29:21,298 INFO  L413           NwaCegarLoop]: 7065 mSDtfsCounter, 5880 mSDsluCounter, 20431 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5880 SdHoareTripleChecker+Valid, 27496 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:29:21,298 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5880 Valid, 27496 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:29:21,305 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8131 states.
[2023-11-29 02:29:21,350 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8131 to 4563.
[2023-11-29 02:29:21,354 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4563 states, 4562 states have (on average 1.654318281455502) internal successors, (7547), 4562 states have internal predecessors, (7547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:21,359 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4563 states to 4563 states and 7547 transitions.
[2023-11-29 02:29:21,360 INFO  L78                 Accepts]: Start accepts. Automaton has 4563 states and 7547 transitions. Word has length 3006
[2023-11-29 02:29:21,361 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:29:21,361 INFO  L495      AbstractCegarLoop]: Abstraction has 4563 states and 7547 transitions.
[2023-11-29 02:29:21,362 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 541.6) internal successors, (2708), 5 states have internal predecessors, (2708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:21,362 INFO  L276                IsEmpty]: Start isEmpty. Operand 4563 states and 7547 transitions.
[2023-11-29 02:29:21,405 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3008
[2023-11-29 02:29:21,405 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:29:21,406 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:29:21,406 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54
[2023-11-29 02:29:21,406 INFO  L420      AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:29:21,406 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:29:21,407 INFO  L85        PathProgramCache]: Analyzing trace with hash -986816774, now seen corresponding path program 1 times
[2023-11-29 02:29:21,407 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:29:21,407 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096236618]
[2023-11-29 02:29:21,407 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:29:21,407 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:29:25,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:29:30,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked.
[2023-11-29 02:29:30,555 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:29:30,555 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096236618]
[2023-11-29 02:29:30,555 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096236618] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:29:30,555 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:29:30,556 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:29:30,556 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881088737]
[2023-11-29 02:29:30,556 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:29:30,558 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:29:30,558 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:29:30,560 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:29:30,560 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:29:30,561 INFO  L87              Difference]: Start difference. First operand 4563 states and 7547 transitions. Second operand  has 4 states, 4 states have (on average 678.25) internal successors, (2713), 4 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:30,694 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:29:30,694 INFO  L93              Difference]: Finished difference Result 12052 states and 19917 transitions.
[2023-11-29 02:29:30,694 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:29:30,695 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 678.25) internal successors, (2713), 4 states have internal predecessors, (2713), 0 states have call successors, (0), 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 3007
[2023-11-29 02:29:30,697 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:29:30,703 INFO  L225             Difference]: With dead ends: 12052
[2023-11-29 02:29:30,703 INFO  L226             Difference]: Without dead ends: 8131
[2023-11-29 02:29:30,706 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
[2023-11-29 02:29:30,706 INFO  L413           NwaCegarLoop]: 7056 mSDtfsCounter, 5877 mSDsluCounter, 13364 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5877 SdHoareTripleChecker+Valid, 20420 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
[2023-11-29 02:29:30,706 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5877 Valid, 20420 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:29:30,713 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8131 states.
[2023-11-29 02:29:30,756 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8131 to 4568.
[2023-11-29 02:29:30,760 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4568 states, 4567 states have (on average 1.6540398511057588) internal successors, (7554), 4567 states have internal predecessors, (7554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:30,766 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 7554 transitions.
[2023-11-29 02:29:30,766 INFO  L78                 Accepts]: Start accepts. Automaton has 4568 states and 7554 transitions. Word has length 3007
[2023-11-29 02:29:30,767 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:29:30,768 INFO  L495      AbstractCegarLoop]: Abstraction has 4568 states and 7554 transitions.
[2023-11-29 02:29:30,768 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 678.25) internal successors, (2713), 4 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:30,768 INFO  L276                IsEmpty]: Start isEmpty. Operand 4568 states and 7554 transitions.
[2023-11-29 02:29:30,809 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3009
[2023-11-29 02:29:30,810 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:29:30,810 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:29:30,810 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55
[2023-11-29 02:29:30,810 INFO  L420      AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:29:30,811 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:29:30,811 INFO  L85        PathProgramCache]: Analyzing trace with hash -1124383510, now seen corresponding path program 1 times
[2023-11-29 02:29:30,811 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:29:30,811 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451825458]
[2023-11-29 02:29:30,812 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:29:30,812 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:29:34,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:29:40,057 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked.
[2023-11-29 02:29:40,057 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:29:40,057 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451825458]
[2023-11-29 02:29:40,057 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451825458] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:29:40,057 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:29:40,058 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:29:40,058 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660438774]
[2023-11-29 02:29:40,058 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:29:40,060 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:29:40,060 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:29:40,062 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:29:40,062 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:29:40,063 INFO  L87              Difference]: Start difference. First operand 4568 states and 7554 transitions. Second operand  has 4 states, 4 states have (on average 679.5) internal successors, (2718), 4 states have internal predecessors, (2718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:40,205 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:29:40,205 INFO  L93              Difference]: Finished difference Result 12067 states and 19938 transitions.
[2023-11-29 02:29:40,205 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:29:40,206 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 679.5) internal successors, (2718), 4 states have internal predecessors, (2718), 0 states have call successors, (0), 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 3008
[2023-11-29 02:29:40,208 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:29:40,214 INFO  L225             Difference]: With dead ends: 12067
[2023-11-29 02:29:40,214 INFO  L226             Difference]: Without dead ends: 8135
[2023-11-29 02:29:40,217 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
[2023-11-29 02:29:40,218 INFO  L413           NwaCegarLoop]: 7046 mSDtfsCounter, 5874 mSDsluCounter, 13354 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5874 SdHoareTripleChecker+Valid, 20400 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
[2023-11-29 02:29:40,218 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5874 Valid, 20400 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:29:40,225 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8135 states.
[2023-11-29 02:29:40,269 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8135 to 4573.
[2023-11-29 02:29:40,273 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4573 states, 4572 states have (on average 1.6537620297462816) internal successors, (7561), 4572 states have internal predecessors, (7561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:40,278 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 7561 transitions.
[2023-11-29 02:29:40,278 INFO  L78                 Accepts]: Start accepts. Automaton has 4573 states and 7561 transitions. Word has length 3008
[2023-11-29 02:29:40,280 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:29:40,280 INFO  L495      AbstractCegarLoop]: Abstraction has 4573 states and 7561 transitions.
[2023-11-29 02:29:40,281 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 679.5) internal successors, (2718), 4 states have internal predecessors, (2718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:40,281 INFO  L276                IsEmpty]: Start isEmpty. Operand 4573 states and 7561 transitions.
[2023-11-29 02:29:40,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3010
[2023-11-29 02:29:40,323 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:29:40,323 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:29:40,323 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56
[2023-11-29 02:29:40,324 INFO  L420      AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:29:40,324 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:29:40,324 INFO  L85        PathProgramCache]: Analyzing trace with hash 885190832, now seen corresponding path program 1 times
[2023-11-29 02:29:40,324 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:29:40,324 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479768043]
[2023-11-29 02:29:40,325 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:29:40,325 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:29:44,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:29:49,584 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-11-29 02:29:49,584 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:29:49,584 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479768043]
[2023-11-29 02:29:49,584 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479768043] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:29:49,584 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:29:49,585 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:29:49,585 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653664235]
[2023-11-29 02:29:49,585 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:29:49,587 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:29:49,587 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:29:49,588 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:29:49,588 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:29:49,589 INFO  L87              Difference]: Start difference. First operand 4573 states and 7561 transitions. Second operand  has 4 states, 4 states have (on average 680.75) internal successors, (2723), 4 states have internal predecessors, (2723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:49,727 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:29:49,727 INFO  L93              Difference]: Finished difference Result 12082 states and 19959 transitions.
[2023-11-29 02:29:49,728 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:29:49,728 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 680.75) internal successors, (2723), 4 states have internal predecessors, (2723), 0 states have call successors, (0), 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 3009
[2023-11-29 02:29:49,730 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:29:49,736 INFO  L225             Difference]: With dead ends: 12082
[2023-11-29 02:29:49,736 INFO  L226             Difference]: Without dead ends: 8139
[2023-11-29 02:29:49,739 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
[2023-11-29 02:29:49,740 INFO  L413           NwaCegarLoop]: 7036 mSDtfsCounter, 5871 mSDsluCounter, 13344 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5871 SdHoareTripleChecker+Valid, 20380 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
[2023-11-29 02:29:49,740 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5871 Valid, 20380 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:29:49,747 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8139 states.
[2023-11-29 02:29:49,792 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8139 to 4578.
[2023-11-29 02:29:49,796 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4578 states, 4577 states have (on average 1.653484815381254) internal successors, (7568), 4577 states have internal predecessors, (7568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:49,801 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4578 states to 4578 states and 7568 transitions.
[2023-11-29 02:29:49,801 INFO  L78                 Accepts]: Start accepts. Automaton has 4578 states and 7568 transitions. Word has length 3009
[2023-11-29 02:29:49,803 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:29:49,803 INFO  L495      AbstractCegarLoop]: Abstraction has 4578 states and 7568 transitions.
[2023-11-29 02:29:49,804 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 680.75) internal successors, (2723), 4 states have internal predecessors, (2723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:49,804 INFO  L276                IsEmpty]: Start isEmpty. Operand 4578 states and 7568 transitions.
[2023-11-29 02:29:49,846 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3011
[2023-11-29 02:29:49,846 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:29:49,847 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:29:49,847 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57
[2023-11-29 02:29:49,847 INFO  L420      AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:29:49,848 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:29:49,848 INFO  L85        PathProgramCache]: Analyzing trace with hash -764182984, now seen corresponding path program 1 times
[2023-11-29 02:29:49,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:29:49,848 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128642495]
[2023-11-29 02:29:49,848 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:29:49,848 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:29:53,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:29:59,033 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked.
[2023-11-29 02:29:59,034 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:29:59,034 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128642495]
[2023-11-29 02:29:59,034 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128642495] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:29:59,034 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:29:59,034 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:29:59,035 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796619649]
[2023-11-29 02:29:59,035 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:29:59,036 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:29:59,036 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:29:59,038 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:29:59,038 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:29:59,038 INFO  L87              Difference]: Start difference. First operand 4578 states and 7568 transitions. Second operand  has 4 states, 4 states have (on average 681.5) internal successors, (2726), 4 states have internal predecessors, (2726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:59,171 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:29:59,171 INFO  L93              Difference]: Finished difference Result 12090 states and 19969 transitions.
[2023-11-29 02:29:59,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:29:59,172 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 681.5) internal successors, (2726), 4 states have internal predecessors, (2726), 0 states have call successors, (0), 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 3010
[2023-11-29 02:29:59,174 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:29:59,180 INFO  L225             Difference]: With dead ends: 12090
[2023-11-29 02:29:59,180 INFO  L226             Difference]: Without dead ends: 8136
[2023-11-29 02:29:59,183 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
[2023-11-29 02:29:59,183 INFO  L413           NwaCegarLoop]: 7027 mSDtfsCounter, 5865 mSDsluCounter, 13333 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5865 SdHoareTripleChecker+Valid, 20360 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:29:59,183 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5865 Valid, 20360 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:29:59,190 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8136 states.
[2023-11-29 02:29:59,234 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8136 to 4580.
[2023-11-29 02:29:59,238 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4580 states, 4579 states have (on average 1.6531993885127758) internal successors, (7570), 4579 states have internal predecessors, (7570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:59,243 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 7570 transitions.
[2023-11-29 02:29:59,243 INFO  L78                 Accepts]: Start accepts. Automaton has 4580 states and 7570 transitions. Word has length 3010
[2023-11-29 02:29:59,245 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:29:59,245 INFO  L495      AbstractCegarLoop]: Abstraction has 4580 states and 7570 transitions.
[2023-11-29 02:29:59,246 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 681.5) internal successors, (2726), 4 states have internal predecessors, (2726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:29:59,246 INFO  L276                IsEmpty]: Start isEmpty. Operand 4580 states and 7570 transitions.
[2023-11-29 02:29:59,288 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3012
[2023-11-29 02:29:59,288 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:29:59,289 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:29:59,289 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58
[2023-11-29 02:29:59,289 INFO  L420      AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:29:59,289 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:29:59,290 INFO  L85        PathProgramCache]: Analyzing trace with hash 535791946, now seen corresponding path program 1 times
[2023-11-29 02:29:59,290 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:29:59,290 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37439008]
[2023-11-29 02:29:59,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:29:59,290 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:30:03,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:30:09,480 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked.
[2023-11-29 02:30:09,480 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:30:09,480 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37439008]
[2023-11-29 02:30:09,481 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37439008] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:30:09,481 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:30:09,482 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:30:09,482 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111584130]
[2023-11-29 02:30:09,482 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:30:09,483 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:30:09,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:30:09,485 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:30:09,485 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:30:09,485 INFO  L87              Difference]: Start difference. First operand 4580 states and 7570 transitions. Second operand  has 5 states, 5 states have (on average 545.8) internal successors, (2729), 5 states have internal predecessors, (2729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:09,655 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:30:09,655 INFO  L93              Difference]: Finished difference Result 12103 states and 19986 transitions.
[2023-11-29 02:30:09,656 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:30:09,656 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 545.8) internal successors, (2729), 5 states have internal predecessors, (2729), 0 states have call successors, (0), 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 3011
[2023-11-29 02:30:09,658 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:30:09,664 INFO  L225             Difference]: With dead ends: 12103
[2023-11-29 02:30:09,664 INFO  L226             Difference]: Without dead ends: 8147
[2023-11-29 02:30:09,667 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:30:09,667 INFO  L413           NwaCegarLoop]: 7025 mSDtfsCounter, 5869 mSDsluCounter, 19197 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5869 SdHoareTripleChecker+Valid, 26222 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:30:09,667 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5869 Valid, 26222 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:30:09,674 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8147 states.
[2023-11-29 02:30:09,717 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8147 to 4583.
[2023-11-29 02:30:09,721 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4583 states, 4582 states have (on average 1.6532082060235704) internal successors, (7575), 4582 states have internal predecessors, (7575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:09,726 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 7575 transitions.
[2023-11-29 02:30:09,727 INFO  L78                 Accepts]: Start accepts. Automaton has 4583 states and 7575 transitions. Word has length 3011
[2023-11-29 02:30:09,728 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:30:09,728 INFO  L495      AbstractCegarLoop]: Abstraction has 4583 states and 7575 transitions.
[2023-11-29 02:30:09,729 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 545.8) internal successors, (2729), 5 states have internal predecessors, (2729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:09,729 INFO  L276                IsEmpty]: Start isEmpty. Operand 4583 states and 7575 transitions.
[2023-11-29 02:30:09,771 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3013
[2023-11-29 02:30:09,771 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:30:09,772 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:30:09,772 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59
[2023-11-29 02:30:09,772 INFO  L420      AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:30:09,772 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:30:09,773 INFO  L85        PathProgramCache]: Analyzing trace with hash -252398756, now seen corresponding path program 1 times
[2023-11-29 02:30:09,773 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:30:09,773 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106748096]
[2023-11-29 02:30:09,773 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:30:09,773 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:30:12,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:30:18,123 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked.
[2023-11-29 02:30:18,123 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:30:18,123 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106748096]
[2023-11-29 02:30:18,123 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106748096] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:30:18,123 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:30:18,124 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:30:18,124 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653382224]
[2023-11-29 02:30:18,124 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:30:18,125 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:30:18,125 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:30:18,126 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:30:18,126 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:30:18,127 INFO  L87              Difference]: Start difference. First operand 4583 states and 7575 transitions. Second operand  has 4 states, 4 states have (on average 683.0) internal successors, (2732), 4 states have internal predecessors, (2732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:18,289 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:30:18,289 INFO  L93              Difference]: Finished difference Result 12105 states and 19990 transitions.
[2023-11-29 02:30:18,289 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:30:18,290 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 683.0) internal successors, (2732), 4 states have internal predecessors, (2732), 0 states have call successors, (0), 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 3012
[2023-11-29 02:30:18,291 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:30:18,296 INFO  L225             Difference]: With dead ends: 12105
[2023-11-29 02:30:18,296 INFO  L226             Difference]: Without dead ends: 8140
[2023-11-29 02:30:18,298 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
[2023-11-29 02:30:18,298 INFO  L413           NwaCegarLoop]: 7017 mSDtfsCounter, 5862 mSDsluCounter, 13323 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5862 SdHoareTripleChecker+Valid, 20340 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:30:18,298 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5862 Valid, 20340 Invalid, 20 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:30:18,304 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8140 states.
[2023-11-29 02:30:18,338 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8140 to 4585.
[2023-11-29 02:30:18,342 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4585 states, 4584 states have (on average 1.6529232111692844) internal successors, (7577), 4584 states have internal predecessors, (7577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:18,346 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4585 states to 4585 states and 7577 transitions.
[2023-11-29 02:30:18,346 INFO  L78                 Accepts]: Start accepts. Automaton has 4585 states and 7577 transitions. Word has length 3012
[2023-11-29 02:30:18,348 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:30:18,348 INFO  L495      AbstractCegarLoop]: Abstraction has 4585 states and 7577 transitions.
[2023-11-29 02:30:18,348 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 683.0) internal successors, (2732), 4 states have internal predecessors, (2732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:18,348 INFO  L276                IsEmpty]: Start isEmpty. Operand 4585 states and 7577 transitions.
[2023-11-29 02:30:18,385 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3014
[2023-11-29 02:30:18,385 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:30:18,386 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:30:18,386 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60
[2023-11-29 02:30:18,386 INFO  L420      AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:30:18,386 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:30:18,386 INFO  L85        PathProgramCache]: Analyzing trace with hash -1292560222, now seen corresponding path program 1 times
[2023-11-29 02:30:18,387 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:30:18,387 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477728076]
[2023-11-29 02:30:18,387 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:30:18,387 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:30:22,163 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:30:27,716 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked.
[2023-11-29 02:30:27,716 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:30:27,716 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477728076]
[2023-11-29 02:30:27,716 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477728076] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:30:27,716 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:30:27,717 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:30:27,717 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164737720]
[2023-11-29 02:30:27,717 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:30:27,719 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:30:27,719 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:30:27,720 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:30:27,720 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:30:27,721 INFO  L87              Difference]: Start difference. First operand 4585 states and 7577 transitions. Second operand  has 4 states, 4 states have (on average 683.75) internal successors, (2735), 4 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:27,852 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:30:27,852 INFO  L93              Difference]: Finished difference Result 12118 states and 20007 transitions.
[2023-11-29 02:30:27,852 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:30:27,853 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 683.75) internal successors, (2735), 4 states have internal predecessors, (2735), 0 states have call successors, (0), 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 3013
[2023-11-29 02:30:27,855 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:30:27,861 INFO  L225             Difference]: With dead ends: 12118
[2023-11-29 02:30:27,861 INFO  L226             Difference]: Without dead ends: 8151
[2023-11-29 02:30:27,864 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
[2023-11-29 02:30:27,864 INFO  L413           NwaCegarLoop]: 7016 mSDtfsCounter, 5864 mSDsluCounter, 13324 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5864 SdHoareTripleChecker+Valid, 20340 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
[2023-11-29 02:30:27,865 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5864 Valid, 20340 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:30:27,871 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8151 states.
[2023-11-29 02:30:27,916 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8151 to 4588.
[2023-11-29 02:30:27,919 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4588 states, 4587 states have (on average 1.6529321996947897) internal successors, (7582), 4587 states have internal predecessors, (7582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:27,925 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 7582 transitions.
[2023-11-29 02:30:27,925 INFO  L78                 Accepts]: Start accepts. Automaton has 4588 states and 7582 transitions. Word has length 3013
[2023-11-29 02:30:27,926 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:30:27,926 INFO  L495      AbstractCegarLoop]: Abstraction has 4588 states and 7582 transitions.
[2023-11-29 02:30:27,927 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 683.75) internal successors, (2735), 4 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:27,927 INFO  L276                IsEmpty]: Start isEmpty. Operand 4588 states and 7582 transitions.
[2023-11-29 02:30:27,967 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3015
[2023-11-29 02:30:27,967 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:30:27,968 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:30:27,968 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61
[2023-11-29 02:30:27,968 INFO  L420      AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:30:27,968 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:30:27,969 INFO  L85        PathProgramCache]: Analyzing trace with hash 1382572482, now seen corresponding path program 1 times
[2023-11-29 02:30:27,969 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:30:27,969 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094458332]
[2023-11-29 02:30:27,969 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:30:27,969 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:30:31,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:30:37,599 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 208 proven. 214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 02:30:37,600 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:30:37,600 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094458332]
[2023-11-29 02:30:37,600 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094458332] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-29 02:30:37,600 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181373694]
[2023-11-29 02:30:37,600 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:30:37,600 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-29 02:30:37,601 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/z3
[2023-11-29 02:30:37,602 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-29 02:30:37,603 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-29 02:30:40,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:30:40,488 INFO  L262         TraceCheckSpWp]: Trace formula consists of 13095 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-11-29 02:30:40,580 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-29 02:30:41,326 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 142 proven. 74 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked.
[2023-11-29 02:30:41,326 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-29 02:30:41,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked.
[2023-11-29 02:30:41,457 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [181373694] provided 1 perfect and 1 imperfect interpolant sequences
[2023-11-29 02:30:41,457 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2023-11-29 02:30:41,459 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 15
[2023-11-29 02:30:41,459 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292052343]
[2023-11-29 02:30:41,460 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:30:41,464 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:30:41,464 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:30:41,466 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:30:41,466 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210
[2023-11-29 02:30:41,467 INFO  L87              Difference]: Start difference. First operand 4588 states and 7582 transitions. Second operand  has 4 states, 4 states have (on average 684.5) internal successors, (2738), 4 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:41,669 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:30:41,669 INFO  L93              Difference]: Finished difference Result 12124 states and 20017 transitions.
[2023-11-29 02:30:41,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:30:41,670 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 684.5) internal successors, (2738), 4 states have internal predecessors, (2738), 0 states have call successors, (0), 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 3014
[2023-11-29 02:30:41,672 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:30:41,678 INFO  L225             Difference]: With dead ends: 12124
[2023-11-29 02:30:41,678 INFO  L226             Difference]: Without dead ends: 8148
[2023-11-29 02:30:41,681 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6035 GetRequests, 6021 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240
[2023-11-29 02:30:41,682 INFO  L413           NwaCegarLoop]: 7011 mSDtfsCounter, 5864 mSDsluCounter, 13319 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5864 SdHoareTripleChecker+Valid, 20330 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
[2023-11-29 02:30:41,682 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5864 Valid, 20330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:30:41,689 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8148 states.
[2023-11-29 02:30:41,738 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 4590.
[2023-11-29 02:30:41,742 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4590 states, 4589 states have (on average 1.6526476356504685) internal successors, (7584), 4589 states have internal predecessors, (7584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:41,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 7584 transitions.
[2023-11-29 02:30:41,748 INFO  L78                 Accepts]: Start accepts. Automaton has 4590 states and 7584 transitions. Word has length 3014
[2023-11-29 02:30:41,750 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:30:41,750 INFO  L495      AbstractCegarLoop]: Abstraction has 4590 states and 7584 transitions.
[2023-11-29 02:30:41,750 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 684.5) internal successors, (2738), 4 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:41,750 INFO  L276                IsEmpty]: Start isEmpty. Operand 4590 states and 7584 transitions.
[2023-11-29 02:30:41,793 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3016
[2023-11-29 02:30:41,793 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:30:41,794 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:30:41,829 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-29 02:30:41,994 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658a3b35-0302-4a3f-864a-abd9746829cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-29 02:30:41,995 INFO  L420      AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:30:41,995 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:30:41,995 INFO  L85        PathProgramCache]: Analyzing trace with hash -1255633604, now seen corresponding path program 1 times
[2023-11-29 02:30:41,995 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:30:41,995 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883318982]
[2023-11-29 02:30:41,996 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:30:41,996 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:30:46,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:30:51,692 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2023-11-29 02:30:51,692 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:30:51,692 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883318982]
[2023-11-29 02:30:51,692 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883318982] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:30:51,692 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:30:51,693 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:30:51,693 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340068376]
[2023-11-29 02:30:51,693 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:30:51,695 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:30:51,695 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:30:51,697 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:30:51,697 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:30:51,698 INFO  L87              Difference]: Start difference. First operand 4590 states and 7584 transitions. Second operand  has 4 states, 4 states have (on average 685.25) internal successors, (2741), 4 states have internal predecessors, (2741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:51,905 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:30:51,906 INFO  L93              Difference]: Finished difference Result 12126 states and 20017 transitions.
[2023-11-29 02:30:51,906 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:30:51,907 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 685.25) internal successors, (2741), 4 states have internal predecessors, (2741), 0 states have call successors, (0), 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 3015
[2023-11-29 02:30:51,909 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:30:51,913 INFO  L225             Difference]: With dead ends: 12126
[2023-11-29 02:30:51,913 INFO  L226             Difference]: Without dead ends: 8145
[2023-11-29 02:30:51,915 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
[2023-11-29 02:30:51,915 INFO  L413           NwaCegarLoop]: 7002 mSDtfsCounter, 5856 mSDsluCounter, 13308 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5856 SdHoareTripleChecker+Valid, 20310 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:30:51,915 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5856 Valid, 20310 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:30:51,923 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8145 states.
[2023-11-29 02:30:51,965 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8145 to 4592.
[2023-11-29 02:30:51,969 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4592 states, 4591 states have (on average 1.652363319538227) internal successors, (7586), 4591 states have internal predecessors, (7586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:51,975 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 7586 transitions.
[2023-11-29 02:30:51,975 INFO  L78                 Accepts]: Start accepts. Automaton has 4592 states and 7586 transitions. Word has length 3015
[2023-11-29 02:30:51,977 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:30:51,977 INFO  L495      AbstractCegarLoop]: Abstraction has 4592 states and 7586 transitions.
[2023-11-29 02:30:51,978 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 685.25) internal successors, (2741), 4 states have internal predecessors, (2741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:30:51,978 INFO  L276                IsEmpty]: Start isEmpty. Operand 4592 states and 7586 transitions.
[2023-11-29 02:30:52,019 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3017
[2023-11-29 02:30:52,019 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:30:52,020 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:30:52,020 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63
[2023-11-29 02:30:52,020 INFO  L420      AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:30:52,020 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:30:52,020 INFO  L85        PathProgramCache]: Analyzing trace with hash 2062839270, now seen corresponding path program 1 times
[2023-11-29 02:30:52,021 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:30:52,021 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226265937]
[2023-11-29 02:30:52,021 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:30:52,021 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:30:56,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:31:02,028 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2023-11-29 02:31:02,028 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:31:02,028 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226265937]
[2023-11-29 02:31:02,029 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226265937] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:31:02,029 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:31:02,030 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:31:02,030 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003414351]
[2023-11-29 02:31:02,030 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:31:02,032 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:31:02,032 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:31:02,033 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:31:02,033 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:31:02,034 INFO  L87              Difference]: Start difference. First operand 4592 states and 7586 transitions. Second operand  has 5 states, 5 states have (on average 548.8) internal successors, (2744), 5 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:02,207 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:31:02,207 INFO  L93              Difference]: Finished difference Result 12139 states and 20034 transitions.
[2023-11-29 02:31:02,207 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:31:02,208 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 548.8) internal successors, (2744), 5 states have internal predecessors, (2744), 0 states have call successors, (0), 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 3016
[2023-11-29 02:31:02,209 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:31:02,215 INFO  L225             Difference]: With dead ends: 12139
[2023-11-29 02:31:02,215 INFO  L226             Difference]: Without dead ends: 8156
[2023-11-29 02:31:02,218 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:31:02,219 INFO  L413           NwaCegarLoop]: 7000 mSDtfsCounter, 5860 mSDsluCounter, 19163 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5860 SdHoareTripleChecker+Valid, 26163 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:31:02,219 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5860 Valid, 26163 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:31:02,226 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8156 states.
[2023-11-29 02:31:02,271 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8156 to 4595.
[2023-11-29 02:31:02,275 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4595 states, 4594 states have (on average 1.652372659991293) internal successors, (7591), 4594 states have internal predecessors, (7591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:02,280 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4595 states to 4595 states and 7591 transitions.
[2023-11-29 02:31:02,280 INFO  L78                 Accepts]: Start accepts. Automaton has 4595 states and 7591 transitions. Word has length 3016
[2023-11-29 02:31:02,282 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:31:02,282 INFO  L495      AbstractCegarLoop]: Abstraction has 4595 states and 7591 transitions.
[2023-11-29 02:31:02,283 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 548.8) internal successors, (2744), 5 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:02,283 INFO  L276                IsEmpty]: Start isEmpty. Operand 4595 states and 7591 transitions.
[2023-11-29 02:31:02,326 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3018
[2023-11-29 02:31:02,326 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:31:02,327 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:31:02,327 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64
[2023-11-29 02:31:02,327 INFO  L420      AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:31:02,327 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:31:02,327 INFO  L85        PathProgramCache]: Analyzing trace with hash 373427092, now seen corresponding path program 1 times
[2023-11-29 02:31:02,327 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:31:02,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890039537]
[2023-11-29 02:31:02,328 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:31:02,328 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:31:05,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:31:11,321 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2023-11-29 02:31:11,321 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:31:11,321 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890039537]
[2023-11-29 02:31:11,322 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890039537] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:31:11,322 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:31:11,322 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:31:11,323 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179645065]
[2023-11-29 02:31:11,323 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:31:11,324 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:31:11,324 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:31:11,326 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:31:11,326 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:31:11,327 INFO  L87              Difference]: Start difference. First operand 4595 states and 7591 transitions. Second operand  has 4 states, 4 states have (on average 686.75) internal successors, (2747), 4 states have internal predecessors, (2747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:11,458 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:31:11,458 INFO  L93              Difference]: Finished difference Result 12141 states and 20038 transitions.
[2023-11-29 02:31:11,458 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:31:11,459 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 686.75) internal successors, (2747), 4 states have internal predecessors, (2747), 0 states have call successors, (0), 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 3017
[2023-11-29 02:31:11,461 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:31:11,466 INFO  L225             Difference]: With dead ends: 12141
[2023-11-29 02:31:11,467 INFO  L226             Difference]: Without dead ends: 8149
[2023-11-29 02:31:11,470 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
[2023-11-29 02:31:11,470 INFO  L413           NwaCegarLoop]: 6992 mSDtfsCounter, 5853 mSDsluCounter, 13298 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5853 SdHoareTripleChecker+Valid, 20290 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:31:11,470 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5853 Valid, 20290 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:31:11,478 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8149 states.
[2023-11-29 02:31:11,523 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8149 to 4597.
[2023-11-29 02:31:11,527 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4597 states, 4596 states have (on average 1.652088772845953) internal successors, (7593), 4596 states have internal predecessors, (7593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:11,532 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4597 states to 4597 states and 7593 transitions.
[2023-11-29 02:31:11,532 INFO  L78                 Accepts]: Start accepts. Automaton has 4597 states and 7593 transitions. Word has length 3017
[2023-11-29 02:31:11,534 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:31:11,534 INFO  L495      AbstractCegarLoop]: Abstraction has 4597 states and 7593 transitions.
[2023-11-29 02:31:11,535 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 686.75) internal successors, (2747), 4 states have internal predecessors, (2747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:11,535 INFO  L276                IsEmpty]: Start isEmpty. Operand 4597 states and 7593 transitions.
[2023-11-29 02:31:11,630 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3019
[2023-11-29 02:31:11,630 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:31:11,631 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:31:11,631 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65
[2023-11-29 02:31:11,632 INFO  L420      AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:31:11,632 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:31:11,632 INFO  L85        PathProgramCache]: Analyzing trace with hash 1537597516, now seen corresponding path program 1 times
[2023-11-29 02:31:11,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:31:11,632 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266477819]
[2023-11-29 02:31:11,633 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:31:11,633 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:31:16,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:31:23,485 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked.
[2023-11-29 02:31:23,485 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:31:23,485 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266477819]
[2023-11-29 02:31:23,485 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266477819] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:31:23,485 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:31:23,486 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:31:23,486 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295797666]
[2023-11-29 02:31:23,487 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:31:23,488 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:31:23,488 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:31:23,489 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:31:23,490 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:31:23,490 INFO  L87              Difference]: Start difference. First operand 4597 states and 7593 transitions. Second operand  has 5 states, 5 states have (on average 550.0) internal successors, (2750), 5 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:23,653 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:31:23,654 INFO  L93              Difference]: Finished difference Result 12154 states and 20055 transitions.
[2023-11-29 02:31:23,654 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:31:23,654 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 550.0) internal successors, (2750), 5 states have internal predecessors, (2750), 0 states have call successors, (0), 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 3018
[2023-11-29 02:31:23,656 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:31:23,662 INFO  L225             Difference]: With dead ends: 12154
[2023-11-29 02:31:23,662 INFO  L226             Difference]: Without dead ends: 8160
[2023-11-29 02:31:23,665 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:31:23,665 INFO  L413           NwaCegarLoop]: 6990 mSDtfsCounter, 5857 mSDsluCounter, 19150 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5857 SdHoareTripleChecker+Valid, 26140 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:31:23,665 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5857 Valid, 26140 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:31:23,672 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8160 states.
[2023-11-29 02:31:23,711 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8160 to 4600.
[2023-11-29 02:31:23,715 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4600 states, 4599 states have (on average 1.6520982822352686) internal successors, (7598), 4599 states have internal predecessors, (7598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:23,719 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 7598 transitions.
[2023-11-29 02:31:23,720 INFO  L78                 Accepts]: Start accepts. Automaton has 4600 states and 7598 transitions. Word has length 3018
[2023-11-29 02:31:23,721 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:31:23,721 INFO  L495      AbstractCegarLoop]: Abstraction has 4600 states and 7598 transitions.
[2023-11-29 02:31:23,722 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 550.0) internal successors, (2750), 5 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:23,722 INFO  L276                IsEmpty]: Start isEmpty. Operand 4600 states and 7598 transitions.
[2023-11-29 02:31:23,759 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3020
[2023-11-29 02:31:23,759 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:31:23,760 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:31:23,760 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66
[2023-11-29 02:31:23,760 INFO  L420      AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:31:23,760 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:31:23,761 INFO  L85        PathProgramCache]: Analyzing trace with hash -463414226, now seen corresponding path program 1 times
[2023-11-29 02:31:23,761 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:31:23,761 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036523499]
[2023-11-29 02:31:23,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:31:23,761 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:31:26,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:31:32,007 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked.
[2023-11-29 02:31:32,007 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:31:32,008 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036523499]
[2023-11-29 02:31:32,008 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036523499] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:31:32,008 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:31:32,009 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:31:32,009 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580812819]
[2023-11-29 02:31:32,009 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:31:32,011 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:31:32,011 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:31:32,012 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:31:32,013 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:31:32,013 INFO  L87              Difference]: Start difference. First operand 4600 states and 7598 transitions. Second operand  has 4 states, 4 states have (on average 688.25) internal successors, (2753), 4 states have internal predecessors, (2753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:32,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:31:32,158 INFO  L93              Difference]: Finished difference Result 12156 states and 20059 transitions.
[2023-11-29 02:31:32,158 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:31:32,159 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 688.25) internal successors, (2753), 4 states have internal predecessors, (2753), 0 states have call successors, (0), 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 3019
[2023-11-29 02:31:32,161 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:31:32,167 INFO  L225             Difference]: With dead ends: 12156
[2023-11-29 02:31:32,168 INFO  L226             Difference]: Without dead ends: 8153
[2023-11-29 02:31:32,171 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
[2023-11-29 02:31:32,171 INFO  L413           NwaCegarLoop]: 6982 mSDtfsCounter, 5850 mSDsluCounter, 13288 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5850 SdHoareTripleChecker+Valid, 20270 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:31:32,171 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5850 Valid, 20270 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:31:32,180 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8153 states.
[2023-11-29 02:31:32,226 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8153 to 4602.
[2023-11-29 02:31:32,230 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4602 states, 4601 states have (on average 1.6518148228645946) internal successors, (7600), 4601 states have internal predecessors, (7600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:32,236 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 7600 transitions.
[2023-11-29 02:31:32,236 INFO  L78                 Accepts]: Start accepts. Automaton has 4602 states and 7600 transitions. Word has length 3019
[2023-11-29 02:31:32,237 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:31:32,237 INFO  L495      AbstractCegarLoop]: Abstraction has 4602 states and 7600 transitions.
[2023-11-29 02:31:32,238 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 688.25) internal successors, (2753), 4 states have internal predecessors, (2753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:32,238 INFO  L276                IsEmpty]: Start isEmpty. Operand 4602 states and 7600 transitions.
[2023-11-29 02:31:32,296 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3021
[2023-11-29 02:31:32,296 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:31:32,297 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:31:32,297 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67
[2023-11-29 02:31:32,297 INFO  L420      AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:31:32,297 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:31:32,297 INFO  L85        PathProgramCache]: Analyzing trace with hash -281820304, now seen corresponding path program 1 times
[2023-11-29 02:31:32,298 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:31:32,298 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017985450]
[2023-11-29 02:31:32,298 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:31:32,298 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:31:36,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:31:41,991 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked.
[2023-11-29 02:31:41,991 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:31:41,991 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017985450]
[2023-11-29 02:31:41,991 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017985450] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:31:41,992 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:31:41,992 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:31:41,993 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229317027]
[2023-11-29 02:31:41,993 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:31:41,994 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:31:41,994 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:31:41,996 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:31:41,996 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:31:41,997 INFO  L87              Difference]: Start difference. First operand 4602 states and 7600 transitions. Second operand  has 5 states, 5 states have (on average 551.2) internal successors, (2756), 5 states have internal predecessors, (2756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:42,165 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:31:42,165 INFO  L93              Difference]: Finished difference Result 12169 states and 20076 transitions.
[2023-11-29 02:31:42,165 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:31:42,166 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 551.2) internal successors, (2756), 5 states have internal predecessors, (2756), 0 states have call successors, (0), 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 3020
[2023-11-29 02:31:42,168 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:31:42,174 INFO  L225             Difference]: With dead ends: 12169
[2023-11-29 02:31:42,174 INFO  L226             Difference]: Without dead ends: 8164
[2023-11-29 02:31:42,177 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:31:42,177 INFO  L413           NwaCegarLoop]: 6980 mSDtfsCounter, 5854 mSDsluCounter, 19137 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5854 SdHoareTripleChecker+Valid, 26117 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:31:42,178 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5854 Valid, 26117 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:31:42,185 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8164 states.
[2023-11-29 02:31:42,227 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8164 to 4605.
[2023-11-29 02:31:42,230 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4605 states, 4604 states have (on average 1.6518245004344048) internal successors, (7605), 4604 states have internal predecessors, (7605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:42,235 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 7605 transitions.
[2023-11-29 02:31:42,236 INFO  L78                 Accepts]: Start accepts. Automaton has 4605 states and 7605 transitions. Word has length 3020
[2023-11-29 02:31:42,237 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:31:42,237 INFO  L495      AbstractCegarLoop]: Abstraction has 4605 states and 7605 transitions.
[2023-11-29 02:31:42,238 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 551.2) internal successors, (2756), 5 states have internal predecessors, (2756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:42,238 INFO  L276                IsEmpty]: Start isEmpty. Operand 4605 states and 7605 transitions.
[2023-11-29 02:31:42,276 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3022
[2023-11-29 02:31:42,276 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:31:42,276 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:31:42,276 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68
[2023-11-29 02:31:42,277 INFO  L420      AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:31:42,277 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:31:42,277 INFO  L85        PathProgramCache]: Analyzing trace with hash 2093894022, now seen corresponding path program 1 times
[2023-11-29 02:31:42,277 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:31:42,277 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014032752]
[2023-11-29 02:31:42,277 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:31:42,277 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:31:46,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:31:51,890 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked.
[2023-11-29 02:31:51,891 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:31:51,891 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014032752]
[2023-11-29 02:31:51,891 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014032752] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:31:51,891 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:31:51,892 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:31:51,892 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969928349]
[2023-11-29 02:31:51,892 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:31:51,894 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:31:51,894 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:31:51,895 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:31:51,896 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:31:51,896 INFO  L87              Difference]: Start difference. First operand 4605 states and 7605 transitions. Second operand  has 4 states, 4 states have (on average 690.25) internal successors, (2761), 4 states have internal predecessors, (2761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:52,035 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:31:52,035 INFO  L93              Difference]: Finished difference Result 12178 states and 20091 transitions.
[2023-11-29 02:31:52,036 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:31:52,036 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 690.25) internal successors, (2761), 4 states have internal predecessors, (2761), 0 states have call successors, (0), 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 3021
[2023-11-29 02:31:52,038 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:31:52,044 INFO  L225             Difference]: With dead ends: 12178
[2023-11-29 02:31:52,045 INFO  L226             Difference]: Without dead ends: 8164
[2023-11-29 02:31:52,048 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
[2023-11-29 02:31:52,048 INFO  L413           NwaCegarLoop]: 6971 mSDtfsCounter, 5850 mSDsluCounter, 13279 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5850 SdHoareTripleChecker+Valid, 20250 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
[2023-11-29 02:31:52,048 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5850 Valid, 20250 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:31:52,055 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8164 states.
[2023-11-29 02:31:52,100 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8164 to 4610.
[2023-11-29 02:31:52,104 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4610 states, 4609 states have (on average 1.6515513126491648) internal successors, (7612), 4609 states have internal predecessors, (7612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:52,110 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 7612 transitions.
[2023-11-29 02:31:52,110 INFO  L78                 Accepts]: Start accepts. Automaton has 4610 states and 7612 transitions. Word has length 3021
[2023-11-29 02:31:52,111 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:31:52,111 INFO  L495      AbstractCegarLoop]: Abstraction has 4610 states and 7612 transitions.
[2023-11-29 02:31:52,112 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 690.25) internal successors, (2761), 4 states have internal predecessors, (2761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:31:52,112 INFO  L276                IsEmpty]: Start isEmpty. Operand 4610 states and 7612 transitions.
[2023-11-29 02:31:52,150 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3023
[2023-11-29 02:31:52,150 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:31:52,151 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:31:52,151 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69
[2023-11-29 02:31:52,151 INFO  L420      AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:31:52,151 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:31:52,151 INFO  L85        PathProgramCache]: Analyzing trace with hash -968221700, now seen corresponding path program 1 times
[2023-11-29 02:31:52,152 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:31:52,152 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104537271]
[2023-11-29 02:31:52,152 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:31:52,152 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:31:55,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:32:01,061 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked.
[2023-11-29 02:32:01,061 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:32:01,061 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104537271]
[2023-11-29 02:32:01,061 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104537271] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:32:01,062 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:32:01,062 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:32:01,063 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127410740]
[2023-11-29 02:32:01,063 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:32:01,065 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:32:01,065 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:32:01,067 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:32:01,067 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:32:01,068 INFO  L87              Difference]: Start difference. First operand 4610 states and 7612 transitions. Second operand  has 4 states, 4 states have (on average 691.5) internal successors, (2766), 4 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:01,217 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:32:01,217 INFO  L93              Difference]: Finished difference Result 12193 states and 20112 transitions.
[2023-11-29 02:32:01,217 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:32:01,218 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 691.5) internal successors, (2766), 4 states have internal predecessors, (2766), 0 states have call successors, (0), 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 3022
[2023-11-29 02:32:01,220 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:32:01,226 INFO  L225             Difference]: With dead ends: 12193
[2023-11-29 02:32:01,226 INFO  L226             Difference]: Without dead ends: 8168
[2023-11-29 02:32:01,229 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
[2023-11-29 02:32:01,229 INFO  L413           NwaCegarLoop]: 6961 mSDtfsCounter, 5847 mSDsluCounter, 13269 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5847 SdHoareTripleChecker+Valid, 20230 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
[2023-11-29 02:32:01,230 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5847 Valid, 20230 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:32:01,237 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8168 states.
[2023-11-29 02:32:01,282 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8168 to 4615.
[2023-11-29 02:32:01,286 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4615 states, 4614 states have (on average 1.6512787169484178) internal successors, (7619), 4614 states have internal predecessors, (7619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:01,292 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4615 states to 4615 states and 7619 transitions.
[2023-11-29 02:32:01,292 INFO  L78                 Accepts]: Start accepts. Automaton has 4615 states and 7619 transitions. Word has length 3022
[2023-11-29 02:32:01,293 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:32:01,293 INFO  L495      AbstractCegarLoop]: Abstraction has 4615 states and 7619 transitions.
[2023-11-29 02:32:01,294 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 691.5) internal successors, (2766), 4 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:01,294 INFO  L276                IsEmpty]: Start isEmpty. Operand 4615 states and 7619 transitions.
[2023-11-29 02:32:01,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3024
[2023-11-29 02:32:01,337 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:32:01,338 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:32:01,338 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70
[2023-11-29 02:32:01,338 INFO  L420      AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:32:01,338 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:32:01,338 INFO  L85        PathProgramCache]: Analyzing trace with hash -1177239046, now seen corresponding path program 1 times
[2023-11-29 02:32:01,338 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:32:01,338 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797204154]
[2023-11-29 02:32:01,339 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:32:01,339 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:32:05,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:32:10,623 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked.
[2023-11-29 02:32:10,623 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:32:10,624 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797204154]
[2023-11-29 02:32:10,624 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797204154] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:32:10,624 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:32:10,625 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:32:10,625 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082460133]
[2023-11-29 02:32:10,625 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:32:10,627 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:32:10,627 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:32:10,628 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:32:10,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:32:10,629 INFO  L87              Difference]: Start difference. First operand 4615 states and 7619 transitions. Second operand  has 4 states, 4 states have (on average 692.25) internal successors, (2769), 4 states have internal predecessors, (2769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:10,761 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:32:10,761 INFO  L93              Difference]: Finished difference Result 12201 states and 20122 transitions.
[2023-11-29 02:32:10,761 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:32:10,762 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 692.25) internal successors, (2769), 4 states have internal predecessors, (2769), 0 states have call successors, (0), 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 3023
[2023-11-29 02:32:10,764 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:32:10,770 INFO  L225             Difference]: With dead ends: 12201
[2023-11-29 02:32:10,770 INFO  L226             Difference]: Without dead ends: 8165
[2023-11-29 02:32:10,773 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
[2023-11-29 02:32:10,774 INFO  L413           NwaCegarLoop]: 6952 mSDtfsCounter, 5841 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5841 SdHoareTripleChecker+Valid, 20210 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:32:10,774 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5841 Valid, 20210 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:32:10,780 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8165 states.
[2023-11-29 02:32:10,825 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 4617.
[2023-11-29 02:32:10,829 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4617 states, 4616 states have (on average 1.650996533795494) internal successors, (7621), 4616 states have internal predecessors, (7621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:10,835 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 7621 transitions.
[2023-11-29 02:32:10,835 INFO  L78                 Accepts]: Start accepts. Automaton has 4617 states and 7621 transitions. Word has length 3023
[2023-11-29 02:32:10,836 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:32:10,836 INFO  L495      AbstractCegarLoop]: Abstraction has 4617 states and 7621 transitions.
[2023-11-29 02:32:10,837 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 692.25) internal successors, (2769), 4 states have internal predecessors, (2769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:10,837 INFO  L276                IsEmpty]: Start isEmpty. Operand 4617 states and 7621 transitions.
[2023-11-29 02:32:10,879 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3025
[2023-11-29 02:32:10,879 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:32:10,880 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:32:10,880 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71
[2023-11-29 02:32:10,880 INFO  L420      AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:32:10,880 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:32:10,880 INFO  L85        PathProgramCache]: Analyzing trace with hash 730920930, now seen corresponding path program 1 times
[2023-11-29 02:32:10,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:32:10,880 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305723940]
[2023-11-29 02:32:10,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:32:10,881 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:32:15,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:32:21,111 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked.
[2023-11-29 02:32:21,111 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:32:21,111 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305723940]
[2023-11-29 02:32:21,111 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305723940] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:32:21,111 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:32:21,112 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:32:21,112 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467734131]
[2023-11-29 02:32:21,113 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:32:21,114 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:32:21,114 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:32:21,116 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:32:21,116 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:32:21,117 INFO  L87              Difference]: Start difference. First operand 4617 states and 7621 transitions. Second operand  has 5 states, 5 states have (on average 554.4) internal successors, (2772), 5 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:21,301 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:32:21,301 INFO  L93              Difference]: Finished difference Result 12214 states and 20139 transitions.
[2023-11-29 02:32:21,301 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:32:21,302 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 554.4) internal successors, (2772), 5 states have internal predecessors, (2772), 0 states have call successors, (0), 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 3024
[2023-11-29 02:32:21,304 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:32:21,310 INFO  L225             Difference]: With dead ends: 12214
[2023-11-29 02:32:21,310 INFO  L226             Difference]: Without dead ends: 8176
[2023-11-29 02:32:21,313 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:32:21,313 INFO  L413           NwaCegarLoop]: 6950 mSDtfsCounter, 5845 mSDsluCounter, 19098 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5845 SdHoareTripleChecker+Valid, 26048 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:32:21,313 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5845 Valid, 26048 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:32:21,321 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8176 states.
[2023-11-29 02:32:21,367 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8176 to 4620.
[2023-11-29 02:32:21,371 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4620 states, 4619 states have (on average 1.651006711409396) internal successors, (7626), 4619 states have internal predecessors, (7626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:21,377 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 7626 transitions.
[2023-11-29 02:32:21,377 INFO  L78                 Accepts]: Start accepts. Automaton has 4620 states and 7626 transitions. Word has length 3024
[2023-11-29 02:32:21,378 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:32:21,378 INFO  L495      AbstractCegarLoop]: Abstraction has 4620 states and 7626 transitions.
[2023-11-29 02:32:21,379 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 554.4) internal successors, (2772), 5 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:21,379 INFO  L276                IsEmpty]: Start isEmpty. Operand 4620 states and 7626 transitions.
[2023-11-29 02:32:21,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3026
[2023-11-29 02:32:21,457 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:32:21,458 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:32:21,458 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72
[2023-11-29 02:32:21,458 INFO  L420      AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:32:21,459 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:32:21,460 INFO  L85        PathProgramCache]: Analyzing trace with hash 754264340, now seen corresponding path program 1 times
[2023-11-29 02:32:21,460 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:32:21,460 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26229832]
[2023-11-29 02:32:21,460 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:32:21,461 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:32:25,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:32:31,023 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2023-11-29 02:32:31,023 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:32:31,023 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26229832]
[2023-11-29 02:32:31,023 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26229832] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:32:31,023 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:32:31,024 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:32:31,024 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314242406]
[2023-11-29 02:32:31,024 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:32:31,025 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:32:31,025 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:32:31,026 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:32:31,027 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:32:31,027 INFO  L87              Difference]: Start difference. First operand 4620 states and 7626 transitions. Second operand  has 4 states, 4 states have (on average 693.75) internal successors, (2775), 4 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:31,165 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:32:31,165 INFO  L93              Difference]: Finished difference Result 12216 states and 20143 transitions.
[2023-11-29 02:32:31,165 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:32:31,166 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 693.75) internal successors, (2775), 4 states have internal predecessors, (2775), 0 states have call successors, (0), 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 3025
[2023-11-29 02:32:31,167 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:32:31,173 INFO  L225             Difference]: With dead ends: 12216
[2023-11-29 02:32:31,173 INFO  L226             Difference]: Without dead ends: 8169
[2023-11-29 02:32:31,176 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
[2023-11-29 02:32:31,176 INFO  L413           NwaCegarLoop]: 6942 mSDtfsCounter, 5838 mSDsluCounter, 13248 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5838 SdHoareTripleChecker+Valid, 20190 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:32:31,177 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5838 Valid, 20190 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:32:31,183 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8169 states.
[2023-11-29 02:32:31,227 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 4622.
[2023-11-29 02:32:31,231 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4622 states, 4621 states have (on average 1.6507249513092404) internal successors, (7628), 4621 states have internal predecessors, (7628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:31,237 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4622 states to 4622 states and 7628 transitions.
[2023-11-29 02:32:31,237 INFO  L78                 Accepts]: Start accepts. Automaton has 4622 states and 7628 transitions. Word has length 3025
[2023-11-29 02:32:31,238 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:32:31,238 INFO  L495      AbstractCegarLoop]: Abstraction has 4622 states and 7628 transitions.
[2023-11-29 02:32:31,239 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 693.75) internal successors, (2775), 4 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:31,239 INFO  L276                IsEmpty]: Start isEmpty. Operand 4622 states and 7628 transitions.
[2023-11-29 02:32:31,281 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3027
[2023-11-29 02:32:31,281 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:32:31,281 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:32:31,282 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73
[2023-11-29 02:32:31,282 INFO  L420      AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:32:31,282 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:32:31,282 INFO  L85        PathProgramCache]: Analyzing trace with hash 889291270, now seen corresponding path program 1 times
[2023-11-29 02:32:31,282 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:32:31,282 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990428142]
[2023-11-29 02:32:31,282 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:32:31,283 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:32:35,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:32:41,526 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2023-11-29 02:32:41,526 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:32:41,526 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990428142]
[2023-11-29 02:32:41,527 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990428142] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:32:41,527 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:32:41,527 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:32:41,527 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763069781]
[2023-11-29 02:32:41,527 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:32:41,529 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:32:41,529 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:32:41,531 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:32:41,531 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:32:41,531 INFO  L87              Difference]: Start difference. First operand 4622 states and 7628 transitions. Second operand  has 5 states, 5 states have (on average 555.6) internal successors, (2778), 5 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:41,762 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:32:41,762 INFO  L93              Difference]: Finished difference Result 12229 states and 20160 transitions.
[2023-11-29 02:32:41,762 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:32:41,763 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 555.6) internal successors, (2778), 5 states have internal predecessors, (2778), 0 states have call successors, (0), 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 3026
[2023-11-29 02:32:41,765 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:32:41,773 INFO  L225             Difference]: With dead ends: 12229
[2023-11-29 02:32:41,773 INFO  L226             Difference]: Without dead ends: 8180
[2023-11-29 02:32:41,776 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:32:41,777 INFO  L413           NwaCegarLoop]: 6940 mSDtfsCounter, 5841 mSDsluCounter, 20181 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5841 SdHoareTripleChecker+Valid, 27121 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-29 02:32:41,777 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5841 Valid, 27121 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-29 02:32:41,786 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8180 states.
[2023-11-29 02:32:41,847 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 4625.
[2023-11-29 02:32:41,852 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4625 states, 4624 states have (on average 1.650735294117647) internal successors, (7633), 4624 states have internal predecessors, (7633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:41,859 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4625 states to 4625 states and 7633 transitions.
[2023-11-29 02:32:41,860 INFO  L78                 Accepts]: Start accepts. Automaton has 4625 states and 7633 transitions. Word has length 3026
[2023-11-29 02:32:41,861 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:32:41,861 INFO  L495      AbstractCegarLoop]: Abstraction has 4625 states and 7633 transitions.
[2023-11-29 02:32:41,862 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 555.6) internal successors, (2778), 5 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:41,862 INFO  L276                IsEmpty]: Start isEmpty. Operand 4625 states and 7633 transitions.
[2023-11-29 02:32:41,904 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3028
[2023-11-29 02:32:41,904 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:32:41,905 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:32:41,905 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74
[2023-11-29 02:32:41,905 INFO  L420      AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:32:41,905 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:32:41,906 INFO  L85        PathProgramCache]: Analyzing trace with hash 970287724, now seen corresponding path program 1 times
[2023-11-29 02:32:41,906 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:32:41,906 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251389053]
[2023-11-29 02:32:41,906 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:32:41,906 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:32:46,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:32:52,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-11-29 02:32:52,080 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:32:52,080 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251389053]
[2023-11-29 02:32:52,081 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251389053] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:32:52,081 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:32:52,081 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:32:52,081 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986793378]
[2023-11-29 02:32:52,081 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:32:52,082 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:32:52,083 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:32:52,084 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:32:52,084 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:32:52,084 INFO  L87              Difference]: Start difference. First operand 4625 states and 7633 transitions. Second operand  has 4 states, 4 states have (on average 695.75) internal successors, (2783), 4 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:52,222 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:32:52,222 INFO  L93              Difference]: Finished difference Result 12238 states and 20175 transitions.
[2023-11-29 02:32:52,222 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:32:52,223 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 695.75) internal successors, (2783), 4 states have internal predecessors, (2783), 0 states have call successors, (0), 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 3027
[2023-11-29 02:32:52,225 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:32:52,230 INFO  L225             Difference]: With dead ends: 12238
[2023-11-29 02:32:52,230 INFO  L226             Difference]: Without dead ends: 8180
[2023-11-29 02:32:52,233 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
[2023-11-29 02:32:52,234 INFO  L413           NwaCegarLoop]: 6931 mSDtfsCounter, 5838 mSDsluCounter, 13239 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5838 SdHoareTripleChecker+Valid, 20170 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
[2023-11-29 02:32:52,234 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5838 Valid, 20170 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:32:52,240 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8180 states.
[2023-11-29 02:32:52,284 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 4630.
[2023-11-29 02:32:52,288 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4630 states, 4629 states have (on average 1.6504644631669907) internal successors, (7640), 4629 states have internal predecessors, (7640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:52,293 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4630 states to 4630 states and 7640 transitions.
[2023-11-29 02:32:52,294 INFO  L78                 Accepts]: Start accepts. Automaton has 4630 states and 7640 transitions. Word has length 3027
[2023-11-29 02:32:52,295 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:32:52,295 INFO  L495      AbstractCegarLoop]: Abstraction has 4630 states and 7640 transitions.
[2023-11-29 02:32:52,296 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 695.75) internal successors, (2783), 4 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:32:52,296 INFO  L276                IsEmpty]: Start isEmpty. Operand 4630 states and 7640 transitions.
[2023-11-29 02:32:52,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3029
[2023-11-29 02:32:52,337 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:32:52,338 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:32:52,338 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75
[2023-11-29 02:32:52,338 INFO  L420      AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:32:52,338 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:32:52,339 INFO  L85        PathProgramCache]: Analyzing trace with hash -1623424110, now seen corresponding path program 1 times
[2023-11-29 02:32:52,339 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:32:52,339 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896803591]
[2023-11-29 02:32:52,339 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:32:52,339 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:32:55,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:33:01,642 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked.
[2023-11-29 02:33:01,642 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:33:01,642 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896803591]
[2023-11-29 02:33:01,642 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896803591] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:33:01,642 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:33:01,643 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:33:01,643 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952244437]
[2023-11-29 02:33:01,643 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:33:01,645 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:33:01,645 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:33:01,647 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:33:01,647 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:33:01,647 INFO  L87              Difference]: Start difference. First operand 4630 states and 7640 transitions. Second operand  has 4 states, 4 states have (on average 696.5) internal successors, (2786), 4 states have internal predecessors, (2786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:01,795 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:33:01,796 INFO  L93              Difference]: Finished difference Result 12246 states and 20185 transitions.
[2023-11-29 02:33:01,796 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 02:33:01,797 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 696.5) internal successors, (2786), 4 states have internal predecessors, (2786), 0 states have call successors, (0), 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 3028
[2023-11-29 02:33:01,799 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:33:01,805 INFO  L225             Difference]: With dead ends: 12246
[2023-11-29 02:33:01,805 INFO  L226             Difference]: Without dead ends: 8177
[2023-11-29 02:33:01,808 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
[2023-11-29 02:33:01,808 INFO  L413           NwaCegarLoop]: 6922 mSDtfsCounter, 5832 mSDsluCounter, 13228 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5832 SdHoareTripleChecker+Valid, 20150 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:33:01,808 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5832 Valid, 20150 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:33:01,815 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8177 states.
[2023-11-29 02:33:01,862 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8177 to 4632.
[2023-11-29 02:33:01,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4632 states, 4631 states have (on average 1.6501835456704816) internal successors, (7642), 4631 states have internal predecessors, (7642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:01,871 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 7642 transitions.
[2023-11-29 02:33:01,872 INFO  L78                 Accepts]: Start accepts. Automaton has 4632 states and 7642 transitions. Word has length 3028
[2023-11-29 02:33:01,873 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:33:01,873 INFO  L495      AbstractCegarLoop]: Abstraction has 4632 states and 7642 transitions.
[2023-11-29 02:33:01,874 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 696.5) internal successors, (2786), 4 states have internal predecessors, (2786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:01,874 INFO  L276                IsEmpty]: Start isEmpty. Operand 4632 states and 7642 transitions.
[2023-11-29 02:33:01,955 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3030
[2023-11-29 02:33:01,955 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:33:01,956 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:33:01,956 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76
[2023-11-29 02:33:01,956 INFO  L420      AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:33:01,956 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:33:01,956 INFO  L85        PathProgramCache]: Analyzing trace with hash 1085904072, now seen corresponding path program 1 times
[2023-11-29 02:33:01,956 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:33:01,957 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898892730]
[2023-11-29 02:33:01,957 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:33:01,957 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:33:06,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:33:12,057 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked.
[2023-11-29 02:33:12,058 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:33:12,058 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898892730]
[2023-11-29 02:33:12,058 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898892730] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:33:12,058 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:33:12,059 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 02:33:12,059 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190966021]
[2023-11-29 02:33:12,059 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:33:12,062 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 02:33:12,062 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:33:12,064 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 02:33:12,064 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 02:33:12,065 INFO  L87              Difference]: Start difference. First operand 4632 states and 7642 transitions. Second operand  has 5 states, 5 states have (on average 557.8) internal successors, (2789), 5 states have internal predecessors, (2789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:12,236 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:33:12,236 INFO  L93              Difference]: Finished difference Result 12259 states and 20202 transitions.
[2023-11-29 02:33:12,236 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 02:33:12,237 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 557.8) internal successors, (2789), 5 states have internal predecessors, (2789), 0 states have call successors, (0), 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 3029
[2023-11-29 02:33:12,239 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:33:12,244 INFO  L225             Difference]: With dead ends: 12259
[2023-11-29 02:33:12,245 INFO  L226             Difference]: Without dead ends: 8188
[2023-11-29 02:33:12,248 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 02:33:12,248 INFO  L413           NwaCegarLoop]: 6920 mSDtfsCounter, 5836 mSDsluCounter, 19059 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5836 SdHoareTripleChecker+Valid, 25979 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 02:33:12,248 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5836 Valid, 25979 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:33:12,255 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8188 states.
[2023-11-29 02:33:12,301 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8188 to 4635.
[2023-11-29 02:33:12,305 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4635 states, 4634 states have (on average 1.6501942166594734) internal successors, (7647), 4634 states have internal predecessors, (7647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:12,310 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 7647 transitions.
[2023-11-29 02:33:12,310 INFO  L78                 Accepts]: Start accepts. Automaton has 4635 states and 7647 transitions. Word has length 3029
[2023-11-29 02:33:12,312 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:33:12,312 INFO  L495      AbstractCegarLoop]: Abstraction has 4635 states and 7647 transitions.
[2023-11-29 02:33:12,313 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 557.8) internal successors, (2789), 5 states have internal predecessors, (2789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:12,313 INFO  L276                IsEmpty]: Start isEmpty. Operand 4635 states and 7647 transitions.
[2023-11-29 02:33:12,391 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3031
[2023-11-29 02:33:12,391 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:33:12,392 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:33:12,392 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77
[2023-11-29 02:33:12,392 INFO  L420      AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:33:12,392 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:33:12,393 INFO  L85        PathProgramCache]: Analyzing trace with hash -827512774, now seen corresponding path program 1 times
[2023-11-29 02:33:12,393 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:33:12,393 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171641089]
[2023-11-29 02:33:12,393 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:33:12,393 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:33:16,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:33:22,129 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked.
[2023-11-29 02:33:22,129 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:33:22,130 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171641089]
[2023-11-29 02:33:22,130 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171641089] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:33:22,130 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:33:22,130 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:33:22,130 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625779735]
[2023-11-29 02:33:22,131 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:33:22,132 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:33:22,132 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:33:22,134 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:33:22,134 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:33:22,135 INFO  L87              Difference]: Start difference. First operand 4635 states and 7647 transitions. Second operand  has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:22,280 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:33:22,280 INFO  L93              Difference]: Finished difference Result 12265 states and 20212 transitions.
[2023-11-29 02:33:22,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:33:22,281 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 3030
[2023-11-29 02:33:22,283 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:33:22,289 INFO  L225             Difference]: With dead ends: 12265
[2023-11-29 02:33:22,289 INFO  L226             Difference]: Without dead ends: 8185
[2023-11-29 02:33:22,292 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
[2023-11-29 02:33:22,292 INFO  L413           NwaCegarLoop]: 6916 mSDtfsCounter, 5834 mSDsluCounter, 13224 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5834 SdHoareTripleChecker+Valid, 20140 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
[2023-11-29 02:33:22,292 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5834 Valid, 20140 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:33:22,299 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8185 states.
[2023-11-29 02:33:22,346 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8185 to 4637.
[2023-11-29 02:33:22,350 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4637 states, 4636 states have (on average 1.649913718723037) internal successors, (7649), 4636 states have internal predecessors, (7649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:22,356 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 7649 transitions.
[2023-11-29 02:33:22,356 INFO  L78                 Accepts]: Start accepts. Automaton has 4637 states and 7649 transitions. Word has length 3030
[2023-11-29 02:33:22,358 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:33:22,358 INFO  L495      AbstractCegarLoop]: Abstraction has 4637 states and 7649 transitions.
[2023-11-29 02:33:22,358 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:22,359 INFO  L276                IsEmpty]: Start isEmpty. Operand 4637 states and 7649 transitions.
[2023-11-29 02:33:22,402 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3032
[2023-11-29 02:33:22,402 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:33:22,403 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 02:33:22,403 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78
[2023-11-29 02:33:22,403 INFO  L420      AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:33:22,403 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:33:22,404 INFO  L85        PathProgramCache]: Analyzing trace with hash 1322621986, now seen corresponding path program 1 times
[2023-11-29 02:33:22,404 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:33:22,404 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742601359]
[2023-11-29 02:33:22,404 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:33:22,404 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 02:33:25,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 02:33:30,984 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked.
[2023-11-29 02:33:30,984 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 02:33:30,984 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742601359]
[2023-11-29 02:33:30,984 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742601359] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 02:33:30,985 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 02:33:30,985 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 02:33:30,985 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877845133]
[2023-11-29 02:33:30,985 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 02:33:30,987 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 02:33:30,987 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 02:33:30,988 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 02:33:30,988 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 02:33:30,988 INFO  L87              Difference]: Start difference. First operand 4637 states and 7649 transitions. Second operand  has 4 states, 4 states have (on average 699.25) internal successors, (2797), 4 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:31,137 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 02:33:31,137 INFO  L93              Difference]: Finished difference Result 12274 states and 20223 transitions.
[2023-11-29 02:33:31,137 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 02:33:31,138 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 699.25) internal successors, (2797), 4 states have internal predecessors, (2797), 0 states have call successors, (0), 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 3031
[2023-11-29 02:33:31,140 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 02:33:31,148 INFO  L225             Difference]: With dead ends: 12274
[2023-11-29 02:33:31,148 INFO  L226             Difference]: Without dead ends: 8189
[2023-11-29 02:33:31,151 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
[2023-11-29 02:33:31,151 INFO  L413           NwaCegarLoop]: 6906 mSDtfsCounter, 5829 mSDsluCounter, 13214 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5829 SdHoareTripleChecker+Valid, 20120 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
[2023-11-29 02:33:31,152 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5829 Valid, 20120 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 02:33:31,160 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8189 states.
[2023-11-29 02:33:31,220 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8189 to 4642.
[2023-11-29 02:33:31,224 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4642 states, 4641 states have (on average 1.6496444731738849) internal successors, (7656), 4641 states have internal predecessors, (7656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:31,229 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4642 states to 4642 states and 7656 transitions.
[2023-11-29 02:33:31,230 INFO  L78                 Accepts]: Start accepts. Automaton has 4642 states and 7656 transitions. Word has length 3031
[2023-11-29 02:33:31,231 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 02:33:31,231 INFO  L495      AbstractCegarLoop]: Abstraction has 4642 states and 7656 transitions.
[2023-11-29 02:33:31,232 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 699.25) internal successors, (2797), 4 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 02:33:31,232 INFO  L276                IsEmpty]: Start isEmpty. Operand 4642 states and 7656 transitions.
[2023-11-29 02:33:31,273 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3033
[2023-11-29 02:33:31,273 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 02:33:31,273 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-11-29 02:33:31,273 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79
[2023-11-29 02:33:31,273 INFO  L420      AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 02:33:31,274 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 02:33:31,274 INFO  L85        PathProgramCache]: Analyzing trace with hash 1894112964, now seen corresponding path program 1 times
[2023-11-29 02:33:31,274 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 02:33:31,274 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912876563]
[2023-11-29 02:33:31,275 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 02:33:31,275 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms