./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem05_label54.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem05_label54.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --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 32bit --witnessprinter.graph.data.programhash 0ac09a7f4a9facc2079abb274ef7b1f27d8fcbbd3e9664296e7fe44da52436c5
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 15:18:59,255 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-12-13 15:18:59,257 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 15:18:59,269 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 15:18:59,269 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 15:18:59,270 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 15:18:59,271 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 15:18:59,272 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 15:18:59,273 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 15:18:59,273 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 15:18:59,274 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 15:18:59,275 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 15:18:59,275 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 15:18:59,275 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 15:18:59,276 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 15:18:59,277 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 15:18:59,277 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 15:18:59,278 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 15:18:59,279 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 15:18:59,280 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 15:18:59,281 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 15:18:59,282 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 15:18:59,283 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 15:18:59,283 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 15:18:59,285 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 15:18:59,285 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 15:18:59,286 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 15:18:59,286 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 15:18:59,286 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 15:18:59,287 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 15:18:59,287 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 15:18:59,288 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 15:18:59,288 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 15:18:59,289 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 15:18:59,289 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 15:18:59,290 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 15:18:59,290 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 15:18:59,290 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 15:18:59,290 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 15:18:59,291 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 15:18:59,291 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 15:18:59,292 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-12-13 15:18:59,305 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-12-13 15:18:59,305 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 15:18:59,306 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 15:18:59,306 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 15:18:59,306 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 15:18:59,306 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 15:18:59,307 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 15:18:59,307 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-12-13 15:18:59,307 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-12-13 15:18:59,307 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 15:18:59,307 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-12-13 15:18:59,307 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-12-13 15:18:59,307 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-12-13 15:18:59,308 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-12-13 15:18:59,308 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-12-13 15:18:59,308 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 15:18:59,308 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-12-13 15:18:59,308 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-12-13 15:18:59,308 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-12-13 15:18:59,308 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-12-13 15:18:59,308 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-12-13 15:18:59,308 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 15:18:59,308 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-12-13 15:18:59,309 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-12-13 15:18:59,309 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 15:18:59,309 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 15:18:59,309 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 15:18:59,309 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-13 15:18:59,309 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-12-13 15:18:59,309 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-13 15:18:59,309 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-13 15:18:59,309 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-12-13 15:18:59,309 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2022-12-13 15:18:59,310 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-12-13 15:18:59,310 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2022-12-13 15:18:59,310 INFO  L138        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_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/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_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ac09a7f4a9facc2079abb274ef7b1f27d8fcbbd3e9664296e7fe44da52436c5
[2022-12-13 15:18:59,483 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 15:18:59,502 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 15:18:59,504 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 15:18:59,506 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-12-13 15:18:59,506 INFO  L275        PluginConnector]: CDTParser initialized
[2022-12-13 15:18:59,507 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-rers2012/Problem05_label54.c
[2022-12-13 15:19:02,008 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-12-13 15:19:02,429 INFO  L351              CDTParser]: Found 1 translation units.
[2022-12-13 15:19:02,430 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/sv-benchmarks/c/eca-rers2012/Problem05_label54.c
[2022-12-13 15:19:02,476 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/data/182e60c52/b0d444fda1c44f5a8d3927495b181368/FLAG4c97d740e
[2022-12-13 15:19:02,578 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/data/182e60c52/b0d444fda1c44f5a8d3927495b181368
[2022-12-13 15:19:02,580 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 15:19:02,581 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 15:19:02,582 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 15:19:02,582 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 15:19:02,585 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 15:19:02,585 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:19:02" (1/1) ...
[2022-12-13 15:19:02,586 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487b89e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:02, skipping insertion in model container
[2022-12-13 15:19:02,586 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:19:02" (1/1) ...
[2022-12-13 15:19:02,592 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-12-13 15:19:02,727 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-12-13 15:19:04,182 WARN  L237   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_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/sv-benchmarks/c/eca-rers2012/Problem05_label54.c[380115,380128]
[2022-12-13 15:19:04,196 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 15:19:04,202 INFO  L203         MainTranslator]: Completed pre-run
[2022-12-13 15:19:04,994 WARN  L237   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_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/sv-benchmarks/c/eca-rers2012/Problem05_label54.c[380115,380128]
[2022-12-13 15:19:04,997 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 15:19:05,026 INFO  L208         MainTranslator]: Completed translation
[2022-12-13 15:19:05,026 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05 WrapperNode
[2022-12-13 15:19:05,026 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 15:19:05,027 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 15:19:05,027 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 15:19:05,027 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 15:19:05,032 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,076 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,293 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12346
[2022-12-13 15:19:05,294 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 15:19:05,294 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 15:19:05,294 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 15:19:05,294 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 15:19:05,301 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,302 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,335 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,335 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,446 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,470 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,482 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,492 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,520 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 15:19:05,521 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 15:19:05,521 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 15:19:05,521 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-12-13 15:19:05,522 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (1/1) ...
[2022-12-13 15:19:05,526 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 15:19:05,534 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 15:19:05,544 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 15:19:05,545 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 15:19:05,577 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 15:19:05,577 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-13 15:19:05,577 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 15:19:05,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 15:19:05,645 INFO  L235             CfgBuilder]: Building ICFG
[2022-12-13 15:19:05,647 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 15:19:10,926 INFO  L276             CfgBuilder]: Performing block encoding
[2022-12-13 15:19:10,946 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 15:19:10,946 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-12-13 15:19:10,949 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:19:10 BoogieIcfgContainer
[2022-12-13 15:19:10,949 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 15:19:10,951 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 15:19:10,951 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 15:19:10,954 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-12-13 15:19:10,954 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:19:02" (1/3) ...
[2022-12-13 15:19:10,954 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46be4882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:19:10, skipping insertion in model container
[2022-12-13 15:19:10,954 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:19:05" (2/3) ...
[2022-12-13 15:19:10,955 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46be4882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:19:10, skipping insertion in model container
[2022-12-13 15:19:10,955 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:19:10" (3/3) ...
[2022-12-13 15:19:10,956 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label54.c
[2022-12-13 15:19:10,969 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 15:19:10,970 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-12-13 15:19:11,034 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 15:19:11,039 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=LoopsAndPotentialCycles, 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;@43b6b0a7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 15:19:11,039 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-12-13 15:19:11,046 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:11,113 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1677
[2022-12-13 15:19:11,113 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:19:11,115 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:19:11,115 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:19:11,118 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:19:11,119 INFO  L85        PathProgramCache]: Analyzing trace with hash -2143191438, now seen corresponding path program 1 times
[2022-12-13 15:19:11,126 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:19:11,126 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177348493]
[2022-12-13 15:19:11,126 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:19:11,127 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:19:11,562 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:19:15,608 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 15:19:15,608 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:19:15,609 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177348493]
[2022-12-13 15:19:15,609 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177348493] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:19:15,609 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:19:15,609 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:19:15,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559742924]
[2022-12-13 15:19:15,611 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:19:15,616 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 15:19:15,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:19:15,638 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 15:19:15,638 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:19:15,643 INFO  L87              Difference]: Start difference. First operand  has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 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 419.0) internal successors, (1676), 3 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:27,534 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:19:27,534 INFO  L93              Difference]: Finished difference Result 9571 states and 18469 transitions.
[2022-12-13 15:19:27,535 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-12-13 15:19:27,536 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 419.0) internal successors, (1676), 3 states have internal predecessors, (1676), 0 states have call successors, (0), 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 1676
[2022-12-13 15:19:27,539 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:19:27,566 INFO  L225             Difference]: With dead ends: 9571
[2022-12-13 15:19:27,566 INFO  L226             Difference]: Without dead ends: 7316
[2022-12-13 15:19:27,573 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-12-13 15:19:27,576 INFO  L413           NwaCegarLoop]: 2468 mSDtfsCounter, 3721 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 15542 mSolverCounterSat, 4554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3721 SdHoareTripleChecker+Valid, 2851 SdHoareTripleChecker+Invalid, 20096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4554 IncrementalHoareTripleChecker+Valid, 15542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time
[2022-12-13 15:19:27,577 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3721 Valid, 2851 Invalid, 20096 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4554 Valid, 15542 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time]
[2022-12-13 15:19:27,597 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7316 states.
[2022-12-13 15:19:27,706 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7316 to 5591.
[2022-12-13 15:19:27,713 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5591 states, 5590 states have (on average 1.6051878354203934) internal successors, (8973), 5590 states have internal predecessors, (8973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:27,723 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 8973 transitions.
[2022-12-13 15:19:27,724 INFO  L78                 Accepts]: Start accepts. Automaton has 5591 states and 8973 transitions. Word has length 1676
[2022-12-13 15:19:27,727 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:19:27,727 INFO  L495      AbstractCegarLoop]: Abstraction has 5591 states and 8973 transitions.
[2022-12-13 15:19:27,728 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 419.0) internal successors, (1676), 3 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:27,728 INFO  L276                IsEmpty]: Start isEmpty. Operand 5591 states and 8973 transitions.
[2022-12-13 15:19:27,773 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1695
[2022-12-13 15:19:27,773 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:19:27,774 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:19:27,774 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-13 15:19:27,774 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:19:27,775 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:19:27,775 INFO  L85        PathProgramCache]: Analyzing trace with hash -1996520508, now seen corresponding path program 1 times
[2022-12-13 15:19:27,775 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:19:27,775 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356079082]
[2022-12-13 15:19:27,776 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:19:27,776 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:19:28,052 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:19:29,278 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 15:19:29,278 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:19:29,278 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356079082]
[2022-12-13 15:19:29,279 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356079082] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:19:29,279 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:19:29,279 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:19:29,279 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616132141]
[2022-12-13 15:19:29,279 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:19:29,282 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:19:29,282 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:19:29,284 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:19:29,284 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:19:29,285 INFO  L87              Difference]: Start difference. First operand 5591 states and 8973 transitions. Second operand  has 3 states, 3 states have (on average 564.6666666666666) internal successors, (1694), 3 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:33,891 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:19:33,891 INFO  L93              Difference]: Finished difference Result 14654 states and 24587 transitions.
[2022-12-13 15:19:33,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:19:33,893 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 564.6666666666666) internal successors, (1694), 3 states have internal predecessors, (1694), 0 states have call successors, (0), 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 1694
[2022-12-13 15:19:33,894 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:19:33,911 INFO  L225             Difference]: With dead ends: 14654
[2022-12-13 15:19:33,911 INFO  L226             Difference]: Without dead ends: 9065
[2022-12-13 15:19:33,917 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:19:33,918 INFO  L413           NwaCegarLoop]: 3447 mSDtfsCounter, 611 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 4722 mSolverCounterSat, 2230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 3694 SdHoareTripleChecker+Invalid, 6952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2230 IncrementalHoareTripleChecker+Valid, 4722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2022-12-13 15:19:33,918 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 3694 Invalid, 6952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2230 Valid, 4722 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2022-12-13 15:19:33,925 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9065 states.
[2022-12-13 15:19:34,011 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9065 to 9059.
[2022-12-13 15:19:34,020 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9059 states, 9058 states have (on average 1.4918304261426363) internal successors, (13513), 9058 states have internal predecessors, (13513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:34,030 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9059 states to 9059 states and 13513 transitions.
[2022-12-13 15:19:34,030 INFO  L78                 Accepts]: Start accepts. Automaton has 9059 states and 13513 transitions. Word has length 1694
[2022-12-13 15:19:34,032 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:19:34,033 INFO  L495      AbstractCegarLoop]: Abstraction has 9059 states and 13513 transitions.
[2022-12-13 15:19:34,033 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 564.6666666666666) internal successors, (1694), 3 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:34,033 INFO  L276                IsEmpty]: Start isEmpty. Operand 9059 states and 13513 transitions.
[2022-12-13 15:19:34,100 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1706
[2022-12-13 15:19:34,101 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:19:34,102 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:19:34,102 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-13 15:19:34,102 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:19:34,103 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:19:34,103 INFO  L85        PathProgramCache]: Analyzing trace with hash -1511689178, now seen corresponding path program 1 times
[2022-12-13 15:19:34,103 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:19:34,103 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108165815]
[2022-12-13 15:19:34,104 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:19:34,104 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:19:34,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:19:35,484 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 15:19:35,484 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:19:35,484 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108165815]
[2022-12-13 15:19:35,485 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108165815] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:19:35,485 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:19:35,485 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:19:35,485 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858984075]
[2022-12-13 15:19:35,485 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:19:35,488 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:19:35,488 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:19:35,489 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:19:35,489 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:19:35,513 INFO  L87              Difference]: Start difference. First operand 9059 states and 13513 transitions. Second operand  has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:39,758 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:19:39,758 INFO  L93              Difference]: Finished difference Result 25052 states and 38282 transitions.
[2022-12-13 15:19:39,759 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:19:39,760 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 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 1705
[2022-12-13 15:19:39,760 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:19:39,788 INFO  L225             Difference]: With dead ends: 25052
[2022-12-13 15:19:39,788 INFO  L226             Difference]: Without dead ends: 15995
[2022-12-13 15:19:39,795 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:19:39,796 INFO  L413           NwaCegarLoop]: 3131 mSDtfsCounter, 2041 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 6001 mSolverCounterSat, 873 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 6874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 873 IncrementalHoareTripleChecker+Valid, 6001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2022-12-13 15:19:39,796 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 3557 Invalid, 6874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [873 Valid, 6001 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2022-12-13 15:19:39,806 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15995 states.
[2022-12-13 15:19:39,938 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15995 to 15952.
[2022-12-13 15:19:39,959 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15952 states, 15951 states have (on average 1.4308193843646166) internal successors, (22823), 15951 states have internal predecessors, (22823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:39,978 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 22823 transitions.
[2022-12-13 15:19:39,978 INFO  L78                 Accepts]: Start accepts. Automaton has 15952 states and 22823 transitions. Word has length 1705
[2022-12-13 15:19:39,978 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:19:39,978 INFO  L495      AbstractCegarLoop]: Abstraction has 15952 states and 22823 transitions.
[2022-12-13 15:19:39,979 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:39,979 INFO  L276                IsEmpty]: Start isEmpty. Operand 15952 states and 22823 transitions.
[2022-12-13 15:19:40,046 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1712
[2022-12-13 15:19:40,046 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:19:40,046 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:19:40,047 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-12-13 15:19:40,047 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:19:40,048 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:19:40,048 INFO  L85        PathProgramCache]: Analyzing trace with hash 995949807, now seen corresponding path program 1 times
[2022-12-13 15:19:40,048 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:19:40,048 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872283095]
[2022-12-13 15:19:40,049 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:19:40,049 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:19:40,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:19:41,048 INFO  L134       CoverageAnalysis]: Checked inductivity of 55 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-12-13 15:19:41,049 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:19:41,049 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872283095]
[2022-12-13 15:19:41,049 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872283095] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:19:41,049 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:19:41,049 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:19:41,049 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040814733]
[2022-12-13 15:19:41,049 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:19:41,050 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:19:41,050 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:19:41,051 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:19:41,052 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:19:41,052 INFO  L87              Difference]: Start difference. First operand 15952 states and 22823 transitions. Second operand  has 3 states, 3 states have (on average 567.0) internal successors, (1701), 3 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:45,736 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:19:45,736 INFO  L93              Difference]: Finished difference Result 33673 states and 47498 transitions.
[2022-12-13 15:19:45,737 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:19:45,737 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 567.0) internal successors, (1701), 3 states have internal predecessors, (1701), 0 states have call successors, (0), 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 1711
[2022-12-13 15:19:45,737 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:19:45,760 INFO  L225             Difference]: With dead ends: 33673
[2022-12-13 15:19:45,760 INFO  L226             Difference]: Without dead ends: 17723
[2022-12-13 15:19:45,769 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:19:45,769 INFO  L413           NwaCegarLoop]: 3336 mSDtfsCounter, 1896 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 5172 mSolverCounterSat, 2113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 7285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2113 IncrementalHoareTripleChecker+Valid, 5172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2022-12-13 15:19:45,770 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 3580 Invalid, 7285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2113 Valid, 5172 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2022-12-13 15:19:45,781 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17723 states.
[2022-12-13 15:19:45,893 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17723 to 17653.
[2022-12-13 15:19:45,907 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17653 states, 17652 states have (on average 1.2745297983231363) internal successors, (22498), 17652 states have internal predecessors, (22498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:45,922 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17653 states to 17653 states and 22498 transitions.
[2022-12-13 15:19:45,923 INFO  L78                 Accepts]: Start accepts. Automaton has 17653 states and 22498 transitions. Word has length 1711
[2022-12-13 15:19:45,923 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:19:45,923 INFO  L495      AbstractCegarLoop]: Abstraction has 17653 states and 22498 transitions.
[2022-12-13 15:19:45,923 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 567.0) internal successors, (1701), 3 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:45,924 INFO  L276                IsEmpty]: Start isEmpty. Operand 17653 states and 22498 transitions.
[2022-12-13 15:19:45,952 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1724
[2022-12-13 15:19:45,952 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:19:45,953 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2022-12-13 15:19:45,953 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-12-13 15:19:45,953 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:19:45,954 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:19:45,954 INFO  L85        PathProgramCache]: Analyzing trace with hash -563779592, now seen corresponding path program 1 times
[2022-12-13 15:19:45,954 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:19:45,954 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855580643]
[2022-12-13 15:19:45,954 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:19:45,954 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:19:46,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:19:48,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 76 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2022-12-13 15:19:48,295 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:19:48,295 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855580643]
[2022-12-13 15:19:48,295 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855580643] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:19:48,295 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:19:48,296 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:19:48,296 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770988680]
[2022-12-13 15:19:48,296 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:19:48,298 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 15:19:48,298 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:19:48,300 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 15:19:48,300 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:19:48,301 INFO  L87              Difference]: Start difference. First operand 17653 states and 22498 transitions. Second operand  has 4 states, 4 states have (on average 425.5) internal successors, (1702), 3 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:54,857 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:19:54,857 INFO  L93              Difference]: Finished difference Result 50609 states and 65120 transitions.
[2022-12-13 15:19:54,858 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 15:19:54,858 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 425.5) internal successors, (1702), 3 states have internal predecessors, (1702), 0 states have call successors, (0), 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 1723
[2022-12-13 15:19:54,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:19:54,887 INFO  L225             Difference]: With dead ends: 50609
[2022-12-13 15:19:54,888 INFO  L226             Difference]: Without dead ends: 32958
[2022-12-13 15:19:54,896 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:19:54,897 INFO  L413           NwaCegarLoop]: 1575 mSDtfsCounter, 4080 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 9520 mSolverCounterSat, 2405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4080 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 11925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2405 IncrementalHoareTripleChecker+Valid, 9520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time
[2022-12-13 15:19:54,897 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4080 Valid, 2027 Invalid, 11925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2405 Valid, 9520 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time]
[2022-12-13 15:19:54,918 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32958 states.
[2022-12-13 15:19:55,124 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32958 to 32947.
[2022-12-13 15:19:55,148 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32947 states, 32946 states have (on average 1.212559946579251) internal successors, (39949), 32946 states have internal predecessors, (39949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:55,179 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32947 states to 32947 states and 39949 transitions.
[2022-12-13 15:19:55,179 INFO  L78                 Accepts]: Start accepts. Automaton has 32947 states and 39949 transitions. Word has length 1723
[2022-12-13 15:19:55,179 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:19:55,179 INFO  L495      AbstractCegarLoop]: Abstraction has 32947 states and 39949 transitions.
[2022-12-13 15:19:55,180 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 425.5) internal successors, (1702), 3 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:19:55,180 INFO  L276                IsEmpty]: Start isEmpty. Operand 32947 states and 39949 transitions.
[2022-12-13 15:19:55,219 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1760
[2022-12-13 15:19:55,220 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:19:55,220 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:19:55,220 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-12-13 15:19:55,221 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:19:55,221 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:19:55,221 INFO  L85        PathProgramCache]: Analyzing trace with hash -365835339, now seen corresponding path program 1 times
[2022-12-13 15:19:55,221 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:19:55,221 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695960474]
[2022-12-13 15:19:55,222 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:19:55,222 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:19:55,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:19:56,097 INFO  L134       CoverageAnalysis]: Checked inductivity of 152 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked.
[2022-12-13 15:19:56,097 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:19:56,097 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695960474]
[2022-12-13 15:19:56,097 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695960474] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:19:56,098 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:19:56,098 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 15:19:56,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288807970]
[2022-12-13 15:19:56,098 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:19:56,100 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:19:56,100 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:19:56,101 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:19:56,101 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:19:56,102 INFO  L87              Difference]: Start difference. First operand 32947 states and 39949 transitions. Second operand  has 3 states, 3 states have (on average 574.0) internal successors, (1722), 2 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:00,074 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:20:00,074 INFO  L93              Difference]: Finished difference Result 81169 states and 97347 transitions.
[2022-12-13 15:20:00,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:20:00,075 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 574.0) internal successors, (1722), 2 states have internal predecessors, (1722), 0 states have call successors, (0), 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 1759
[2022-12-13 15:20:00,075 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:20:00,110 INFO  L225             Difference]: With dead ends: 81169
[2022-12-13 15:20:00,111 INFO  L226             Difference]: Without dead ends: 48224
[2022-12-13 15:20:00,124 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:20:00,124 INFO  L413           NwaCegarLoop]: 1074 mSDtfsCounter, 3154 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 1207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3154 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 5980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2022-12-13 15:20:00,124 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3154 Valid, 1160 Invalid, 5980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1207 Valid, 4773 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2022-12-13 15:20:00,155 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 48224 states.
[2022-12-13 15:20:00,427 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 48224 to 46526.
[2022-12-13 15:20:00,452 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 46526 states, 46525 states have (on average 1.1436432025792584) internal successors, (53208), 46525 states have internal predecessors, (53208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:00,494 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46526 states to 46526 states and 53208 transitions.
[2022-12-13 15:20:00,494 INFO  L78                 Accepts]: Start accepts. Automaton has 46526 states and 53208 transitions. Word has length 1759
[2022-12-13 15:20:00,494 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:20:00,494 INFO  L495      AbstractCegarLoop]: Abstraction has 46526 states and 53208 transitions.
[2022-12-13 15:20:00,495 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 574.0) internal successors, (1722), 2 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:00,495 INFO  L276                IsEmpty]: Start isEmpty. Operand 46526 states and 53208 transitions.
[2022-12-13 15:20:00,537 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1816
[2022-12-13 15:20:00,538 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:20:00,538 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:20:00,538 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-12-13 15:20:00,539 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:20:00,539 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:20:00,539 INFO  L85        PathProgramCache]: Analyzing trace with hash 153071286, now seen corresponding path program 1 times
[2022-12-13 15:20:00,539 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:20:00,539 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850214649]
[2022-12-13 15:20:00,540 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:20:00,540 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:20:00,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:20:01,623 INFO  L134       CoverageAnalysis]: Checked inductivity of 176 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2022-12-13 15:20:01,623 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:20:01,623 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850214649]
[2022-12-13 15:20:01,623 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850214649] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:20:01,623 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:20:01,623 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:20:01,624 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721915348]
[2022-12-13 15:20:01,624 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:20:01,624 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:20:01,625 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:20:01,625 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:20:01,626 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:20:01,626 INFO  L87              Difference]: Start difference. First operand 46526 states and 53208 transitions. Second operand  has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:06,701 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:20:06,701 INFO  L93              Difference]: Finished difference Result 113438 states and 131563 transitions.
[2022-12-13 15:20:06,701 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:20:06,702 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 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 1815
[2022-12-13 15:20:06,702 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:20:06,759 INFO  L225             Difference]: With dead ends: 113438
[2022-12-13 15:20:06,759 INFO  L226             Difference]: Without dead ends: 66914
[2022-12-13 15:20:06,782 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:20:06,783 INFO  L413           NwaCegarLoop]: 1840 mSDtfsCounter, 1886 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 5631 mSolverCounterSat, 1399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 7030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1399 IncrementalHoareTripleChecker+Valid, 5631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2022-12-13 15:20:06,783 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 2133 Invalid, 7030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1399 Valid, 5631 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2022-12-13 15:20:06,828 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66914 states.
[2022-12-13 15:20:07,233 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66914 to 66904.
[2022-12-13 15:20:07,265 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66904 states, 66903 states have (on average 1.126675933814627) internal successors, (75378), 66903 states have internal predecessors, (75378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:07,332 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66904 states to 66904 states and 75378 transitions.
[2022-12-13 15:20:07,332 INFO  L78                 Accepts]: Start accepts. Automaton has 66904 states and 75378 transitions. Word has length 1815
[2022-12-13 15:20:07,333 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:20:07,333 INFO  L495      AbstractCegarLoop]: Abstraction has 66904 states and 75378 transitions.
[2022-12-13 15:20:07,333 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:07,333 INFO  L276                IsEmpty]: Start isEmpty. Operand 66904 states and 75378 transitions.
[2022-12-13 15:20:07,394 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1828
[2022-12-13 15:20:07,395 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:20:07,395 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:20:07,395 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-12-13 15:20:07,396 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:20:07,396 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:20:07,396 INFO  L85        PathProgramCache]: Analyzing trace with hash 973506904, now seen corresponding path program 1 times
[2022-12-13 15:20:07,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:20:07,396 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314195935]
[2022-12-13 15:20:07,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:20:07,397 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:20:07,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:20:09,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 207 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2022-12-13 15:20:09,499 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:20:09,499 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314195935]
[2022-12-13 15:20:09,499 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314195935] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:20:09,499 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:20:09,499 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:20:09,499 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555422570]
[2022-12-13 15:20:09,499 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:20:09,500 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:20:09,500 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:20:09,501 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:20:09,501 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:20:09,501 INFO  L87              Difference]: Start difference. First operand 66904 states and 75378 transitions. Second operand  has 3 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:13,923 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:20:13,923 INFO  L93              Difference]: Finished difference Result 145717 states and 163947 transitions.
[2022-12-13 15:20:13,924 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:20:13,924 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 0 states have call successors, (0), 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 1827
[2022-12-13 15:20:13,924 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:20:13,983 INFO  L225             Difference]: With dead ends: 145717
[2022-12-13 15:20:13,983 INFO  L226             Difference]: Without dead ends: 78815
[2022-12-13 15:20:14,000 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:20:14,000 INFO  L413           NwaCegarLoop]: 3846 mSDtfsCounter, 1707 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 5672 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 4071 SdHoareTripleChecker+Invalid, 6068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 5672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2022-12-13 15:20:14,000 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 4071 Invalid, 6068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 5672 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2022-12-13 15:20:14,044 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78815 states.
[2022-12-13 15:20:14,546 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78815 to 77097.
[2022-12-13 15:20:14,572 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 77097 states, 77096 states have (on average 1.1167246030922486) internal successors, (86095), 77096 states have internal predecessors, (86095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:14,641 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77097 states to 77097 states and 86095 transitions.
[2022-12-13 15:20:14,641 INFO  L78                 Accepts]: Start accepts. Automaton has 77097 states and 86095 transitions. Word has length 1827
[2022-12-13 15:20:14,641 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:20:14,641 INFO  L495      AbstractCegarLoop]: Abstraction has 77097 states and 86095 transitions.
[2022-12-13 15:20:14,642 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:14,642 INFO  L276                IsEmpty]: Start isEmpty. Operand 77097 states and 86095 transitions.
[2022-12-13 15:20:14,707 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1903
[2022-12-13 15:20:14,708 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:20:14,708 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:20:14,708 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-12-13 15:20:14,709 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:20:14,709 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:20:14,709 INFO  L85        PathProgramCache]: Analyzing trace with hash 786928524, now seen corresponding path program 1 times
[2022-12-13 15:20:14,709 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:20:14,709 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837090754]
[2022-12-13 15:20:14,710 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:20:14,710 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:20:14,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:20:17,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 351 backedges. 270 proven. 70 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-12-13 15:20:17,651 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:20:17,651 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837090754]
[2022-12-13 15:20:17,651 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837090754] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 15:20:17,651 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252122711]
[2022-12-13 15:20:17,652 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:20:17,652 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:20:17,652 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 15:20:17,653 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 15:20:17,654 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-12-13 15:20:18,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:20:18,146 INFO  L263         TraceCheckSpWp]: Trace formula consists of 2102 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-12-13 15:20:18,182 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 15:20:19,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 351 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked.
[2022-12-13 15:20:19,710 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 15:20:19,710 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252122711] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:20:19,710 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 15:20:19,711 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2022-12-13 15:20:19,712 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318998449]
[2022-12-13 15:20:19,712 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:20:19,715 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:20:19,715 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:20:19,717 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:20:19,717 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2022-12-13 15:20:19,717 INFO  L87              Difference]: Start difference. First operand 77097 states and 86095 transitions. Second operand  has 3 states, 3 states have (on average 596.0) internal successors, (1788), 3 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:24,678 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:20:24,678 INFO  L93              Difference]: Finished difference Result 152487 states and 170471 transitions.
[2022-12-13 15:20:24,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:20:24,679 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 596.0) internal successors, (1788), 3 states have internal predecessors, (1788), 0 states have call successors, (0), 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 1902
[2022-12-13 15:20:24,680 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:20:24,741 INFO  L225             Difference]: With dead ends: 152487
[2022-12-13 15:20:24,741 INFO  L226             Difference]: Without dead ends: 77090
[2022-12-13 15:20:24,761 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1906 GetRequests, 1901 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2022-12-13 15:20:24,762 INFO  L413           NwaCegarLoop]: 3031 mSDtfsCounter, 424 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 5460 mSolverCounterSat, 702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 6162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 702 IncrementalHoareTripleChecker+Valid, 5460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2022-12-13 15:20:24,762 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 3348 Invalid, 6162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [702 Valid, 5460 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2022-12-13 15:20:24,807 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 77090 states.
[2022-12-13 15:20:25,269 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 77090 to 77089.
[2022-12-13 15:20:25,308 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 77089 states, 77088 states have (on average 1.1014295350767953) internal successors, (84907), 77088 states have internal predecessors, (84907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:25,382 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77089 states to 77089 states and 84907 transitions.
[2022-12-13 15:20:25,383 INFO  L78                 Accepts]: Start accepts. Automaton has 77089 states and 84907 transitions. Word has length 1902
[2022-12-13 15:20:25,384 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:20:25,384 INFO  L495      AbstractCegarLoop]: Abstraction has 77089 states and 84907 transitions.
[2022-12-13 15:20:25,384 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 596.0) internal successors, (1788), 3 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:25,384 INFO  L276                IsEmpty]: Start isEmpty. Operand 77089 states and 84907 transitions.
[2022-12-13 15:20:25,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2094
[2022-12-13 15:20:25,457 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:20:25,458 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:20:25,465 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-12-13 15:20:25,659 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:20:25,660 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:20:25,661 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:20:25,662 INFO  L85        PathProgramCache]: Analyzing trace with hash -577816793, now seen corresponding path program 1 times
[2022-12-13 15:20:25,663 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:20:25,663 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221470687]
[2022-12-13 15:20:25,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:20:25,665 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:20:25,980 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:20:29,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 1016 backedges. 647 proven. 70 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked.
[2022-12-13 15:20:29,263 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:20:29,263 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221470687]
[2022-12-13 15:20:29,263 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221470687] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 15:20:29,263 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066556996]
[2022-12-13 15:20:29,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:20:29,264 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:20:29,264 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 15:20:29,265 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 15:20:29,265 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-12-13 15:20:29,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:20:30,002 INFO  L263         TraceCheckSpWp]: Trace formula consists of 2333 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-12-13 15:20:30,037 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 15:20:30,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 1016 backedges. 812 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked.
[2022-12-13 15:20:30,164 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 15:20:30,164 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066556996] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:20:30,164 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 15:20:30,165 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2022-12-13 15:20:30,165 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377774153]
[2022-12-13 15:20:30,165 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:20:30,166 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:20:30,166 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:20:30,167 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:20:30,167 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-12-13 15:20:30,167 INFO  L87              Difference]: Start difference. First operand 77089 states and 84907 transitions. Second operand  has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:35,241 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:20:35,241 INFO  L93              Difference]: Finished difference Result 176253 states and 195298 transitions.
[2022-12-13 15:20:35,242 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:20:35,242 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 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 2093
[2022-12-13 15:20:35,242 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:20:35,333 INFO  L225             Difference]: With dead ends: 176253
[2022-12-13 15:20:35,333 INFO  L226             Difference]: Without dead ends: 100864
[2022-12-13 15:20:35,362 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2097 GetRequests, 2092 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-12-13 15:20:35,363 INFO  L413           NwaCegarLoop]: 1137 mSDtfsCounter, 2697 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4771 mSolverCounterSat, 1723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 6494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1723 IncrementalHoareTripleChecker+Valid, 4771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2022-12-13 15:20:35,363 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 1250 Invalid, 6494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1723 Valid, 4771 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2022-12-13 15:20:35,433 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100864 states.
[2022-12-13 15:20:36,139 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100864 to 100861.
[2022-12-13 15:20:36,178 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 100861 states, 100860 states have (on average 1.0958159825500695) internal successors, (110524), 100860 states have internal predecessors, (110524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:36,307 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 100861 states to 100861 states and 110524 transitions.
[2022-12-13 15:20:36,308 INFO  L78                 Accepts]: Start accepts. Automaton has 100861 states and 110524 transitions. Word has length 2093
[2022-12-13 15:20:36,308 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:20:36,308 INFO  L495      AbstractCegarLoop]: Abstraction has 100861 states and 110524 transitions.
[2022-12-13 15:20:36,309 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:36,309 INFO  L276                IsEmpty]: Start isEmpty. Operand 100861 states and 110524 transitions.
[2022-12-13 15:20:36,459 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2224
[2022-12-13 15:20:36,459 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:20:36,460 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:20:36,466 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-12-13 15:20:36,660 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:20:36,662 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:20:36,663 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:20:36,665 INFO  L85        PathProgramCache]: Analyzing trace with hash -48406635, now seen corresponding path program 1 times
[2022-12-13 15:20:36,665 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:20:36,666 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372458886]
[2022-12-13 15:20:36,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:20:36,667 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:20:36,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:20:40,137 INFO  L134       CoverageAnalysis]: Checked inductivity of 1158 backedges. 660 proven. 70 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked.
[2022-12-13 15:20:40,137 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:20:40,137 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372458886]
[2022-12-13 15:20:40,137 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372458886] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 15:20:40,138 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447921668]
[2022-12-13 15:20:40,138 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:20:40,138 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:20:40,138 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 15:20:40,139 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 15:20:40,140 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-12-13 15:20:40,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:20:40,754 INFO  L263         TraceCheckSpWp]: Trace formula consists of 2468 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-12-13 15:20:40,767 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 15:20:40,976 INFO  L134       CoverageAnalysis]: Checked inductivity of 1158 backedges. 954 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked.
[2022-12-13 15:20:40,976 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 15:20:40,976 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [447921668] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:20:40,976 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 15:20:40,977 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2022-12-13 15:20:40,977 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459943014]
[2022-12-13 15:20:40,977 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:20:40,979 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:20:40,979 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:20:40,981 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:20:40,981 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-12-13 15:20:40,982 INFO  L87              Difference]: Start difference. First operand 100861 states and 110524 transitions. Second operand  has 3 states, 3 states have (on average 673.6666666666666) internal successors, (2021), 3 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:46,122 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:20:46,122 INFO  L93              Difference]: Finished difference Result 200029 states and 219347 transitions.
[2022-12-13 15:20:46,123 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:20:46,123 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 673.6666666666666) internal successors, (2021), 3 states have internal predecessors, (2021), 0 states have call successors, (0), 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 2223
[2022-12-13 15:20:46,124 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:20:46,210 INFO  L225             Difference]: With dead ends: 200029
[2022-12-13 15:20:46,210 INFO  L226             Difference]: Without dead ends: 100868
[2022-12-13 15:20:46,232 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2227 GetRequests, 2222 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-12-13 15:20:46,232 INFO  L413           NwaCegarLoop]: 1163 mSDtfsCounter, 2001 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 5650 mSolverCounterSat, 987 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 6637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 987 IncrementalHoareTripleChecker+Valid, 5650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2022-12-13 15:20:46,233 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2001 Valid, 1352 Invalid, 6637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [987 Valid, 5650 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2022-12-13 15:20:46,294 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100868 states.
[2022-12-13 15:20:46,990 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100868 to 100860.
[2022-12-13 15:20:47,041 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 100860 states, 100859 states have (on average 1.0801614134583923) internal successors, (108944), 100859 states have internal predecessors, (108944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:47,179 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 100860 states to 100860 states and 108944 transitions.
[2022-12-13 15:20:47,180 INFO  L78                 Accepts]: Start accepts. Automaton has 100860 states and 108944 transitions. Word has length 2223
[2022-12-13 15:20:47,180 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:20:47,180 INFO  L495      AbstractCegarLoop]: Abstraction has 100860 states and 108944 transitions.
[2022-12-13 15:20:47,181 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 673.6666666666666) internal successors, (2021), 3 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:47,181 INFO  L276                IsEmpty]: Start isEmpty. Operand 100860 states and 108944 transitions.
[2022-12-13 15:20:47,326 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2226
[2022-12-13 15:20:47,326 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:20:47,327 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:20:47,333 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-12-13 15:20:47,528 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:20:47,529 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:20:47,530 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:20:47,532 INFO  L85        PathProgramCache]: Analyzing trace with hash -945160505, now seen corresponding path program 1 times
[2022-12-13 15:20:47,532 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:20:47,533 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988620208]
[2022-12-13 15:20:47,534 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:20:47,534 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:20:47,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:20:49,253 INFO  L134       CoverageAnalysis]: Checked inductivity of 1188 backedges. 743 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked.
[2022-12-13 15:20:49,253 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:20:49,253 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988620208]
[2022-12-13 15:20:49,254 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988620208] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:20:49,254 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:20:49,254 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:20:49,254 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026400116]
[2022-12-13 15:20:49,254 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:20:49,255 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:20:49,255 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:20:49,256 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:20:49,256 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:20:49,256 INFO  L87              Difference]: Start difference. First operand 100860 states and 108944 transitions. Second operand  has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:53,323 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:20:53,324 INFO  L93              Difference]: Finished difference Result 200023 states and 216180 transitions.
[2022-12-13 15:20:53,324 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:20:53,324 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 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 2225
[2022-12-13 15:20:53,325 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:20:53,408 INFO  L225             Difference]: With dead ends: 200023
[2022-12-13 15:20:53,408 INFO  L226             Difference]: Without dead ends: 100863
[2022-12-13 15:20:53,431 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:20:53,432 INFO  L413           NwaCegarLoop]: 3471 mSDtfsCounter, 1762 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 5470 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 6059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 5470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2022-12-13 15:20:53,432 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 3860 Invalid, 6059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 5470 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2022-12-13 15:20:53,492 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100863 states.
[2022-12-13 15:20:54,147 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100863 to 100860.
[2022-12-13 15:20:54,179 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 100860 states, 100859 states have (on average 1.0665979238342638) internal successors, (107576), 100859 states have internal predecessors, (107576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:54,272 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 100860 states to 100860 states and 107576 transitions.
[2022-12-13 15:20:54,272 INFO  L78                 Accepts]: Start accepts. Automaton has 100860 states and 107576 transitions. Word has length 2225
[2022-12-13 15:20:54,272 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:20:54,272 INFO  L495      AbstractCegarLoop]: Abstraction has 100860 states and 107576 transitions.
[2022-12-13 15:20:54,273 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:20:54,273 INFO  L276                IsEmpty]: Start isEmpty. Operand 100860 states and 107576 transitions.
[2022-12-13 15:20:54,360 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2235
[2022-12-13 15:20:54,360 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:20:54,361 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:20:54,361 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2022-12-13 15:20:54,361 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:20:54,361 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:20:54,362 INFO  L85        PathProgramCache]: Analyzing trace with hash 1870933722, now seen corresponding path program 1 times
[2022-12-13 15:20:54,362 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:20:54,362 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648707614]
[2022-12-13 15:20:54,362 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:20:54,362 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:20:54,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:20:59,560 INFO  L134       CoverageAnalysis]: Checked inductivity of 1011 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked.
[2022-12-13 15:20:59,560 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:20:59,560 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648707614]
[2022-12-13 15:20:59,561 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648707614] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:20:59,561 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:20:59,561 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-12-13 15:20:59,561 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640274172]
[2022-12-13 15:20:59,562 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:20:59,564 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-12-13 15:20:59,564 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:20:59,566 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-12-13 15:20:59,566 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-12-13 15:20:59,567 INFO  L87              Difference]: Start difference. First operand 100860 states and 107576 transitions. Second operand  has 5 states, 5 states have (on average 381.4) internal successors, (1907), 5 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:05,847 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:21:05,847 INFO  L93              Difference]: Finished difference Result 224105 states and 238670 transitions.
[2022-12-13 15:21:05,847 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-12-13 15:21:05,847 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 381.4) internal successors, (1907), 5 states have internal predecessors, (1907), 0 states have call successors, (0), 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 2234
[2022-12-13 15:21:05,848 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:21:05,969 INFO  L225             Difference]: With dead ends: 224105
[2022-12-13 15:21:05,969 INFO  L226             Difference]: Without dead ends: 124945
[2022-12-13 15:21:06,011 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2022-12-13 15:21:06,011 INFO  L413           NwaCegarLoop]: 3939 mSDtfsCounter, 3525 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 8396 mSolverCounterSat, 2202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3525 SdHoareTripleChecker+Valid, 4413 SdHoareTripleChecker+Invalid, 10598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2202 IncrementalHoareTripleChecker+Valid, 8396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time
[2022-12-13 15:21:06,011 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3525 Valid, 4413 Invalid, 10598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2202 Valid, 8396 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time]
[2022-12-13 15:21:06,118 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 124945 states.
[2022-12-13 15:21:06,974 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 124945 to 124632.
[2022-12-13 15:21:07,037 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 124632 states, 124631 states have (on average 1.0554597170848343) internal successors, (131543), 124631 states have internal predecessors, (131543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:07,161 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124632 states to 124632 states and 131543 transitions.
[2022-12-13 15:21:07,161 INFO  L78                 Accepts]: Start accepts. Automaton has 124632 states and 131543 transitions. Word has length 2234
[2022-12-13 15:21:07,161 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:21:07,162 INFO  L495      AbstractCegarLoop]: Abstraction has 124632 states and 131543 transitions.
[2022-12-13 15:21:07,162 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 381.4) internal successors, (1907), 5 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:07,162 INFO  L276                IsEmpty]: Start isEmpty. Operand 124632 states and 131543 transitions.
[2022-12-13 15:21:07,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2266
[2022-12-13 15:21:07,278 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:21:07,279 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:21:07,279 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2022-12-13 15:21:07,279 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:21:07,279 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:21:07,279 INFO  L85        PathProgramCache]: Analyzing trace with hash -546453227, now seen corresponding path program 1 times
[2022-12-13 15:21:07,279 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:21:07,280 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892140420]
[2022-12-13 15:21:07,280 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:21:07,280 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:21:07,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:21:10,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 1445 backedges. 856 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked.
[2022-12-13 15:21:10,107 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:21:10,107 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892140420]
[2022-12-13 15:21:10,107 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892140420] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:21:10,107 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:21:10,108 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:21:10,108 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593283117]
[2022-12-13 15:21:10,108 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:21:10,110 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:21:10,110 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:21:10,112 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:21:10,112 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:21:10,113 INFO  L87              Difference]: Start difference. First operand 124632 states and 131543 transitions. Second operand  has 3 states, 3 states have (on average 621.0) internal successors, (1863), 3 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:15,944 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:21:15,945 INFO  L93              Difference]: Finished difference Result 286696 states and 304192 transitions.
[2022-12-13 15:21:15,945 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:21:15,945 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 621.0) internal successors, (1863), 3 states have internal predecessors, (1863), 0 states have call successors, (0), 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 2265
[2022-12-13 15:21:15,945 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:21:16,093 INFO  L225             Difference]: With dead ends: 286696
[2022-12-13 15:21:16,093 INFO  L226             Difference]: Without dead ends: 163764
[2022-12-13 15:21:16,136 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:21:16,136 INFO  L413           NwaCegarLoop]: 3822 mSDtfsCounter, 1783 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 6108 mSolverCounterSat, 1121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 4045 SdHoareTripleChecker+Invalid, 7229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1121 IncrementalHoareTripleChecker+Valid, 6108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2022-12-13 15:21:16,136 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 4045 Invalid, 7229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1121 Valid, 6108 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2022-12-13 15:21:16,248 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163764 states.
[2022-12-13 15:21:17,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163764 to 163694.
[2022-12-13 15:21:17,409 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163694 states, 163693 states have (on average 1.0509734686272474) internal successors, (172037), 163693 states have internal predecessors, (172037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:17,672 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163694 states to 163694 states and 172037 transitions.
[2022-12-13 15:21:17,672 INFO  L78                 Accepts]: Start accepts. Automaton has 163694 states and 172037 transitions. Word has length 2265
[2022-12-13 15:21:17,672 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:21:17,673 INFO  L495      AbstractCegarLoop]: Abstraction has 163694 states and 172037 transitions.
[2022-12-13 15:21:17,673 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 621.0) internal successors, (1863), 3 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:17,673 INFO  L276                IsEmpty]: Start isEmpty. Operand 163694 states and 172037 transitions.
[2022-12-13 15:21:17,806 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2342
[2022-12-13 15:21:17,806 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:21:17,807 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:21:17,807 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2022-12-13 15:21:17,807 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:21:17,807 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:21:17,807 INFO  L85        PathProgramCache]: Analyzing trace with hash 1572714697, now seen corresponding path program 1 times
[2022-12-13 15:21:17,808 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:21:17,808 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555336719]
[2022-12-13 15:21:17,808 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:21:17,808 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:21:18,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:21:21,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 1665 backedges. 1076 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked.
[2022-12-13 15:21:21,894 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:21:21,894 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555336719]
[2022-12-13 15:21:21,894 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555336719] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:21:21,894 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:21:21,894 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:21:21,894 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929472174]
[2022-12-13 15:21:21,894 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:21:21,896 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:21:21,896 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:21:21,897 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:21:21,898 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:21:21,898 INFO  L87              Difference]: Start difference. First operand 163694 states and 172037 transitions. Second operand  has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:27,564 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:21:27,565 INFO  L93              Difference]: Finished difference Result 408908 states and 431398 transitions.
[2022-12-13 15:21:27,565 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:21:27,565 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 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 2341
[2022-12-13 15:21:27,566 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:21:27,820 INFO  L225             Difference]: With dead ends: 408908
[2022-12-13 15:21:27,820 INFO  L226             Difference]: Without dead ends: 246914
[2022-12-13 15:21:27,896 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:21:27,896 INFO  L413           NwaCegarLoop]: 961 mSDtfsCounter, 2166 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 5106 mSolverCounterSat, 2615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 7721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2615 IncrementalHoareTripleChecker+Valid, 5106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2022-12-13 15:21:27,897 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 1059 Invalid, 7721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2615 Valid, 5106 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2022-12-13 15:21:28,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 246914 states.
[2022-12-13 15:21:29,917 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 246914 to 246892.
[2022-12-13 15:21:30,045 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 246892 states, 246891 states have (on average 1.0532016152877182) internal successors, (260026), 246891 states have internal predecessors, (260026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:30,301 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 246892 states to 246892 states and 260026 transitions.
[2022-12-13 15:21:30,301 INFO  L78                 Accepts]: Start accepts. Automaton has 246892 states and 260026 transitions. Word has length 2341
[2022-12-13 15:21:30,302 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:21:30,302 INFO  L495      AbstractCegarLoop]: Abstraction has 246892 states and 260026 transitions.
[2022-12-13 15:21:30,302 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:30,302 INFO  L276                IsEmpty]: Start isEmpty. Operand 246892 states and 260026 transitions.
[2022-12-13 15:21:30,681 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2607
[2022-12-13 15:21:30,681 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:21:30,682 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-12-13 15:21:30,682 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2022-12-13 15:21:30,682 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:21:30,682 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:21:30,683 INFO  L85        PathProgramCache]: Analyzing trace with hash 975960292, now seen corresponding path program 1 times
[2022-12-13 15:21:30,683 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:21:30,683 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372221180]
[2022-12-13 15:21:30,683 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:21:30,683 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:21:31,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:21:33,929 INFO  L134       CoverageAnalysis]: Checked inductivity of 1548 backedges. 1160 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked.
[2022-12-13 15:21:33,930 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:21:33,930 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372221180]
[2022-12-13 15:21:33,930 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372221180] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:21:33,930 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:21:33,930 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:21:33,930 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343389875]
[2022-12-13 15:21:33,930 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:21:33,931 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 15:21:33,931 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:21:33,933 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 15:21:33,933 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:21:33,933 INFO  L87              Difference]: Start difference. First operand 246892 states and 260026 transitions. Second operand  has 4 states, 4 states have (on average 577.75) internal successors, (2311), 3 states have internal predecessors, (2311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:41,771 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:21:41,771 INFO  L93              Difference]: Finished difference Result 515857 states and 543169 transitions.
[2022-12-13 15:21:41,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 15:21:41,772 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 577.75) internal successors, (2311), 3 states have internal predecessors, (2311), 0 states have call successors, (0), 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 2606
[2022-12-13 15:21:41,772 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:21:42,057 INFO  L225             Difference]: With dead ends: 515857
[2022-12-13 15:21:42,057 INFO  L226             Difference]: Without dead ends: 270665
[2022-12-13 15:21:42,170 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:21:42,171 INFO  L413           NwaCegarLoop]: 1070 mSDtfsCounter, 4895 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 8906 mSolverCounterSat, 1921 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4895 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 10827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1921 IncrementalHoareTripleChecker+Valid, 8906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time
[2022-12-13 15:21:42,171 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4895 Valid, 1323 Invalid, 10827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1921 Valid, 8906 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time]
[2022-12-13 15:21:42,489 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 270665 states.
[2022-12-13 15:21:44,496 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 270665 to 263872.
[2022-12-13 15:21:44,564 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 263872 states, 263871 states have (on average 1.0527568395162787) internal successors, (277792), 263871 states have internal predecessors, (277792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:44,823 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 263872 states to 263872 states and 277792 transitions.
[2022-12-13 15:21:44,823 INFO  L78                 Accepts]: Start accepts. Automaton has 263872 states and 277792 transitions. Word has length 2606
[2022-12-13 15:21:44,824 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:21:44,824 INFO  L495      AbstractCegarLoop]: Abstraction has 263872 states and 277792 transitions.
[2022-12-13 15:21:44,824 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 577.75) internal successors, (2311), 3 states have internal predecessors, (2311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:44,824 INFO  L276                IsEmpty]: Start isEmpty. Operand 263872 states and 277792 transitions.
[2022-12-13 15:21:45,176 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2714
[2022-12-13 15:21:45,176 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:21:45,177 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 15:21:45,177 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2022-12-13 15:21:45,177 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:21:45,177 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:21:45,178 INFO  L85        PathProgramCache]: Analyzing trace with hash 1803560110, now seen corresponding path program 1 times
[2022-12-13 15:21:45,178 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:21:45,178 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114351438]
[2022-12-13 15:21:45,178 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:21:45,178 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:21:45,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:21:46,937 INFO  L134       CoverageAnalysis]: Checked inductivity of 2940 backedges. 1354 proven. 0 refuted. 0 times theorem prover too weak. 1586 trivial. 0 not checked.
[2022-12-13 15:21:46,938 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:21:46,938 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114351438]
[2022-12-13 15:21:46,938 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114351438] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:21:46,938 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:21:46,938 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 15:21:46,938 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15289135]
[2022-12-13 15:21:46,938 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:21:46,939 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:21:46,939 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:21:46,940 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:21:46,940 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:21:46,941 INFO  L87              Difference]: Start difference. First operand 263872 states and 277792 transitions. Second operand  has 3 states, 3 states have (on average 633.3333333333334) internal successors, (1900), 2 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:53,264 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:21:53,264 INFO  L93              Difference]: Finished difference Result 517450 states and 544769 transitions.
[2022-12-13 15:21:53,264 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:21:53,265 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 633.3333333333334) internal successors, (1900), 2 states have internal predecessors, (1900), 0 states have call successors, (0), 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 2713
[2022-12-13 15:21:53,265 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:21:53,515 INFO  L225             Difference]: With dead ends: 517450
[2022-12-13 15:21:53,515 INFO  L226             Difference]: Without dead ends: 243326
[2022-12-13 15:21:53,602 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:21:53,602 INFO  L413           NwaCegarLoop]: 1487 mSDtfsCounter, 2466 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 4466 mSolverCounterSat, 1674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2466 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 6140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1674 IncrementalHoareTripleChecker+Valid, 4466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2022-12-13 15:21:53,603 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2466 Valid, 1619 Invalid, 6140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1674 Valid, 4466 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2022-12-13 15:21:53,786 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 243326 states.
[2022-12-13 15:21:55,451 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 243326 to 224644.
[2022-12-13 15:21:55,539 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 224644 states, 224643 states have (on average 1.0195599239682518) internal successors, (229037), 224643 states have internal predecessors, (229037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:55,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 224644 states to 224644 states and 229037 transitions.
[2022-12-13 15:21:55,878 INFO  L78                 Accepts]: Start accepts. Automaton has 224644 states and 229037 transitions. Word has length 2713
[2022-12-13 15:21:55,878 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:21:55,878 INFO  L495      AbstractCegarLoop]: Abstraction has 224644 states and 229037 transitions.
[2022-12-13 15:21:55,879 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 633.3333333333334) internal successors, (1900), 2 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:21:55,879 INFO  L276                IsEmpty]: Start isEmpty. Operand 224644 states and 229037 transitions.
[2022-12-13 15:21:56,205 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3275
[2022-12-13 15:21:56,205 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:21:56,206 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-12-13 15:21:56,206 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2022-12-13 15:21:56,206 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:21:56,207 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:21:56,207 INFO  L85        PathProgramCache]: Analyzing trace with hash -2041741871, now seen corresponding path program 1 times
[2022-12-13 15:21:56,207 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:21:56,207 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024329215]
[2022-12-13 15:21:56,207 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:21:56,208 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:21:56,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:21:59,892 INFO  L134       CoverageAnalysis]: Checked inductivity of 3758 backedges. 1767 proven. 0 refuted. 0 times theorem prover too weak. 1991 trivial. 0 not checked.
[2022-12-13 15:21:59,892 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:21:59,892 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024329215]
[2022-12-13 15:21:59,892 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024329215] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:21:59,892 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:21:59,893 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:21:59,893 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82864085]
[2022-12-13 15:21:59,893 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:21:59,896 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:21:59,896 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:21:59,898 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:21:59,898 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:21:59,899 INFO  L87              Difference]: Start difference. First operand 224644 states and 229037 transitions. Second operand  has 3 states, 3 states have (on average 655.0) internal successors, (1965), 3 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:04,456 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:22:04,456 INFO  L93              Difference]: Finished difference Result 530791 states and 541184 transitions.
[2022-12-13 15:22:04,456 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:22:04,456 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 655.0) internal successors, (1965), 3 states have internal predecessors, (1965), 0 states have call successors, (0), 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 3274
[2022-12-13 15:22:04,457 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:22:04,738 INFO  L225             Difference]: With dead ends: 530791
[2022-12-13 15:22:04,738 INFO  L226             Difference]: Without dead ends: 306143
[2022-12-13 15:22:04,805 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:22:04,806 INFO  L413           NwaCegarLoop]: 3012 mSDtfsCounter, 1742 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 4601 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 5360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 4601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2022-12-13 15:22:04,806 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 3229 Invalid, 5360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [759 Valid, 4601 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2022-12-13 15:22:05,017 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 306143 states.
[2022-12-13 15:22:07,157 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 306143 to 301038.
[2022-12-13 15:22:07,270 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 301038 states, 301037 states have (on average 1.0157289635493312) internal successors, (305772), 301037 states have internal predecessors, (305772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:07,681 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 301038 states to 301038 states and 305772 transitions.
[2022-12-13 15:22:07,681 INFO  L78                 Accepts]: Start accepts. Automaton has 301038 states and 305772 transitions. Word has length 3274
[2022-12-13 15:22:07,682 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:22:07,682 INFO  L495      AbstractCegarLoop]: Abstraction has 301038 states and 305772 transitions.
[2022-12-13 15:22:07,682 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 655.0) internal successors, (1965), 3 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:07,682 INFO  L276                IsEmpty]: Start isEmpty. Operand 301038 states and 305772 transitions.
[2022-12-13 15:22:08,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3396
[2022-12-13 15:22:08,084 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:22:08,085 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:22:08,085 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2022-12-13 15:22:08,085 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:22:08,085 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:22:08,085 INFO  L85        PathProgramCache]: Analyzing trace with hash 749383013, now seen corresponding path program 1 times
[2022-12-13 15:22:08,086 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:22:08,086 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375814930]
[2022-12-13 15:22:08,086 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:22:08,086 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:22:08,404 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:22:11,667 INFO  L134       CoverageAnalysis]: Checked inductivity of 3571 backedges. 1591 proven. 0 refuted. 0 times theorem prover too weak. 1980 trivial. 0 not checked.
[2022-12-13 15:22:11,668 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:22:11,668 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375814930]
[2022-12-13 15:22:11,668 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375814930] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:22:11,668 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:22:11,668 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:22:11,668 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528253602]
[2022-12-13 15:22:11,668 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:22:11,669 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:22:11,670 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:22:11,671 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:22:11,671 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:22:11,671 INFO  L87              Difference]: Start difference. First operand 301038 states and 305772 transitions. Second operand  has 3 states, 3 states have (on average 729.0) internal successors, (2187), 3 states have internal predecessors, (2187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:17,445 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:22:17,445 INFO  L93              Difference]: Finished difference Result 685295 states and 696475 transitions.
[2022-12-13 15:22:17,445 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:22:17,446 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 729.0) internal successors, (2187), 3 states have internal predecessors, (2187), 0 states have call successors, (0), 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 3395
[2022-12-13 15:22:17,446 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:22:17,819 INFO  L225             Difference]: With dead ends: 685295
[2022-12-13 15:22:17,819 INFO  L226             Difference]: Without dead ends: 384252
[2022-12-13 15:22:17,894 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:22:17,895 INFO  L413           NwaCegarLoop]: 2993 mSDtfsCounter, 1770 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 4598 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 5297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 4598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2022-12-13 15:22:17,895 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 3202 Invalid, 5297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 4598 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2022-12-13 15:22:18,248 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 384252 states.
[2022-12-13 15:22:20,871 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 384252 to 377439.
[2022-12-13 15:22:21,040 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 377439 states, 377438 states have (on average 1.013827436559117) internal successors, (382657), 377438 states have internal predecessors, (382657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:21,525 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 377439 states to 377439 states and 382657 transitions.
[2022-12-13 15:22:21,525 INFO  L78                 Accepts]: Start accepts. Automaton has 377439 states and 382657 transitions. Word has length 3395
[2022-12-13 15:22:21,526 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:22:21,526 INFO  L495      AbstractCegarLoop]: Abstraction has 377439 states and 382657 transitions.
[2022-12-13 15:22:21,526 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 729.0) internal successors, (2187), 3 states have internal predecessors, (2187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:21,526 INFO  L276                IsEmpty]: Start isEmpty. Operand 377439 states and 382657 transitions.
[2022-12-13 15:22:22,124 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3481
[2022-12-13 15:22:22,124 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:22:22,127 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-12-13 15:22:22,127 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2022-12-13 15:22:22,128 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:22:22,128 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:22:22,130 INFO  L85        PathProgramCache]: Analyzing trace with hash -383087614, now seen corresponding path program 1 times
[2022-12-13 15:22:22,130 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:22:22,130 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314432984]
[2022-12-13 15:22:22,130 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:22:22,131 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:22:22,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:22:25,410 INFO  L134       CoverageAnalysis]: Checked inductivity of 4815 backedges. 2001 proven. 0 refuted. 0 times theorem prover too weak. 2814 trivial. 0 not checked.
[2022-12-13 15:22:25,411 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:22:25,411 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314432984]
[2022-12-13 15:22:25,411 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314432984] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:22:25,411 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:22:25,412 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:22:25,412 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126218478]
[2022-12-13 15:22:25,412 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:22:25,415 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:22:25,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:22:25,417 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:22:25,417 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:22:25,418 INFO  L87              Difference]: Start difference. First operand 377439 states and 382657 transitions. Second operand  has 3 states, 3 states have (on average 676.0) internal successors, (2028), 3 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:30,858 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:22:30,858 INFO  L93              Difference]: Finished difference Result 766766 states and 777293 transitions.
[2022-12-13 15:22:30,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:22:30,859 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 676.0) internal successors, (2028), 3 states have internal predecessors, (2028), 0 states have call successors, (0), 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 3480
[2022-12-13 15:22:30,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:22:31,254 INFO  L225             Difference]: With dead ends: 766766
[2022-12-13 15:22:31,255 INFO  L226             Difference]: Without dead ends: 382514
[2022-12-13 15:22:31,344 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:22:31,344 INFO  L413           NwaCegarLoop]: 2489 mSDtfsCounter, 1977 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4313 mSolverCounterSat, 752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 5065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 752 IncrementalHoareTripleChecker+Valid, 4313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2022-12-13 15:22:31,344 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1977 Valid, 2582 Invalid, 5065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [752 Valid, 4313 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2022-12-13 15:22:31,720 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 382514 states.
[2022-12-13 15:22:34,779 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 382514 to 372319.
[2022-12-13 15:22:34,921 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 372319 states, 372318 states have (on average 1.010958374292943) internal successors, (376398), 372318 states have internal predecessors, (376398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:35,389 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 372319 states to 372319 states and 376398 transitions.
[2022-12-13 15:22:35,389 INFO  L78                 Accepts]: Start accepts. Automaton has 372319 states and 376398 transitions. Word has length 3480
[2022-12-13 15:22:35,390 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:22:35,390 INFO  L495      AbstractCegarLoop]: Abstraction has 372319 states and 376398 transitions.
[2022-12-13 15:22:35,390 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 676.0) internal successors, (2028), 3 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:35,390 INFO  L276                IsEmpty]: Start isEmpty. Operand 372319 states and 376398 transitions.
[2022-12-13 15:22:35,867 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3499
[2022-12-13 15:22:35,867 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:22:35,868 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-12-13 15:22:35,868 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2022-12-13 15:22:35,868 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:22:35,868 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:22:35,869 INFO  L85        PathProgramCache]: Analyzing trace with hash 1208760659, now seen corresponding path program 1 times
[2022-12-13 15:22:35,869 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:22:35,869 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291655301]
[2022-12-13 15:22:35,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:22:35,869 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:22:36,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:22:39,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 5052 backedges. 2001 proven. 0 refuted. 0 times theorem prover too weak. 3051 trivial. 0 not checked.
[2022-12-13 15:22:39,521 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:22:39,521 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291655301]
[2022-12-13 15:22:39,522 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291655301] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:22:39,522 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:22:39,523 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:22:39,523 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409801053]
[2022-12-13 15:22:39,523 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:22:39,526 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:22:39,526 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:22:39,528 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:22:39,528 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:22:39,528 INFO  L87              Difference]: Start difference. First operand 372319 states and 376398 transitions. Second operand  has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:45,582 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:22:45,582 INFO  L93              Difference]: Finished difference Result 805775 states and 814986 transitions.
[2022-12-13 15:22:45,583 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:22:45,583 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 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 3498
[2022-12-13 15:22:45,583 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:22:46,105 INFO  L225             Difference]: With dead ends: 805775
[2022-12-13 15:22:46,105 INFO  L226             Difference]: Without dead ends: 433449
[2022-12-13 15:22:46,238 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:22:46,239 INFO  L413           NwaCegarLoop]: 1214 mSDtfsCounter, 1608 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 5193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2022-12-13 15:22:46,239 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 1417 Invalid, 5193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2022-12-13 15:22:46,597 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 433449 states.
[2022-12-13 15:22:49,707 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 433449 to 423250.
[2022-12-13 15:22:49,820 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 423250 states, 423249 states have (on average 1.0091789939255615) internal successors, (427134), 423249 states have internal predecessors, (427134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:50,235 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 423250 states to 423250 states and 427134 transitions.
[2022-12-13 15:22:50,235 INFO  L78                 Accepts]: Start accepts. Automaton has 423250 states and 427134 transitions. Word has length 3498
[2022-12-13 15:22:50,236 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:22:50,236 INFO  L495      AbstractCegarLoop]: Abstraction has 423250 states and 427134 transitions.
[2022-12-13 15:22:50,236 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:22:50,236 INFO  L276                IsEmpty]: Start isEmpty. Operand 423250 states and 427134 transitions.
[2022-12-13 15:22:50,745 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3640
[2022-12-13 15:22:50,745 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:22:50,746 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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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]
[2022-12-13 15:22:50,746 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2022-12-13 15:22:50,746 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:22:50,746 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:22:50,747 INFO  L85        PathProgramCache]: Analyzing trace with hash -2099006079, now seen corresponding path program 1 times
[2022-12-13 15:22:50,747 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:22:50,747 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35240959]
[2022-12-13 15:22:50,747 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:22:50,747 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:22:51,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:22:56,437 INFO  L134       CoverageAnalysis]: Checked inductivity of 4057 backedges. 2910 proven. 0 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked.
[2022-12-13 15:22:56,437 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:22:56,438 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35240959]
[2022-12-13 15:22:56,438 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35240959] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:22:56,438 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:22:56,438 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:22:56,438 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475169734]
[2022-12-13 15:22:56,438 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:22:56,439 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 15:22:56,439 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:22:56,440 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 15:22:56,441 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:22:56,441 INFO  L87              Difference]: Start difference. First operand 423250 states and 427134 transitions. Second operand  has 4 states, 4 states have (on average 675.0) internal successors, (2700), 3 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:23:03,589 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:23:03,590 INFO  L93              Difference]: Finished difference Result 848205 states and 855982 transitions.
[2022-12-13 15:23:03,590 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 15:23:03,590 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 675.0) internal successors, (2700), 3 states have internal predecessors, (2700), 0 states have call successors, (0), 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 3639
[2022-12-13 15:23:03,591 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:23:04,086 INFO  L225             Difference]: With dead ends: 848205
[2022-12-13 15:23:04,086 INFO  L226             Difference]: Without dead ends: 424943
[2022-12-13 15:23:04,239 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:23:04,240 INFO  L413           NwaCegarLoop]: 761 mSDtfsCounter, 3124 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 8486 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3124 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 8964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 8486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2022-12-13 15:23:04,240 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3124 Valid, 1023 Invalid, 8964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 8486 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2022-12-13 15:23:04,595 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 424943 states.
[2022-12-13 15:23:07,674 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 424943 to 421539.
[2022-12-13 15:23:07,799 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 421539 states, 421538 states have (on average 1.0087916154652725) internal successors, (425244), 421538 states have internal predecessors, (425244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:23:08,358 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 421539 states to 421539 states and 425244 transitions.
[2022-12-13 15:23:08,358 INFO  L78                 Accepts]: Start accepts. Automaton has 421539 states and 425244 transitions. Word has length 3639
[2022-12-13 15:23:08,359 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:23:08,359 INFO  L495      AbstractCegarLoop]: Abstraction has 421539 states and 425244 transitions.
[2022-12-13 15:23:08,359 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 675.0) internal successors, (2700), 3 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:23:08,359 INFO  L276                IsEmpty]: Start isEmpty. Operand 421539 states and 425244 transitions.
[2022-12-13 15:23:08,693 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3780
[2022-12-13 15:23:08,693 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:23:08,694 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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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]
[2022-12-13 15:23:08,694 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2022-12-13 15:23:08,694 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:23:08,694 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:23:08,695 INFO  L85        PathProgramCache]: Analyzing trace with hash -1196620189, now seen corresponding path program 1 times
[2022-12-13 15:23:08,695 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:23:08,695 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616801009]
[2022-12-13 15:23:08,695 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:23:08,695 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:23:09,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:23:16,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 4696 backedges. 2249 proven. 0 refuted. 0 times theorem prover too weak. 2447 trivial. 0 not checked.
[2022-12-13 15:23:16,620 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:23:16,620 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616801009]
[2022-12-13 15:23:16,621 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616801009] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:23:16,621 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:23:16,622 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:23:16,622 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386551526]
[2022-12-13 15:23:16,622 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:23:16,625 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:23:16,625 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:23:16,628 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:23:16,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:23:16,628 INFO  L87              Difference]: Start difference. First operand 421539 states and 425244 transitions. Second operand  has 3 states, 3 states have (on average 764.6666666666666) internal successors, (2294), 3 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:23:22,590 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:23:22,590 INFO  L93              Difference]: Finished difference Result 854969 states and 862756 transitions.
[2022-12-13 15:23:22,590 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:23:22,591 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 764.6666666666666) internal successors, (2294), 3 states have internal predecessors, (2294), 0 states have call successors, (0), 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 3779
[2022-12-13 15:23:22,591 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:23:23,047 INFO  L225             Difference]: With dead ends: 854969
[2022-12-13 15:23:23,047 INFO  L226             Difference]: Without dead ends: 431732
[2022-12-13 15:23:23,393 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:23:23,393 INFO  L413           NwaCegarLoop]: 2911 mSDtfsCounter, 1601 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 4437 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 4802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 4437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2022-12-13 15:23:23,394 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 3094 Invalid, 4802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 4437 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2022-12-13 15:23:23,662 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 431732 states.
[2022-12-13 15:23:26,996 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 431732 to 428330.
[2022-12-13 15:23:27,165 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 428330 states, 428329 states have (on average 1.0084210968671279) internal successors, (431936), 428329 states have internal predecessors, (431936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:23:27,730 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 428330 states to 428330 states and 431936 transitions.
[2022-12-13 15:23:27,730 INFO  L78                 Accepts]: Start accepts. Automaton has 428330 states and 431936 transitions. Word has length 3779
[2022-12-13 15:23:27,731 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:23:27,731 INFO  L495      AbstractCegarLoop]: Abstraction has 428330 states and 431936 transitions.
[2022-12-13 15:23:27,731 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 764.6666666666666) internal successors, (2294), 3 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:23:27,732 INFO  L276                IsEmpty]: Start isEmpty. Operand 428330 states and 431936 transitions.
[2022-12-13 15:23:28,238 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3793
[2022-12-13 15:23:28,239 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:23:28,240 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:23:28,240 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2022-12-13 15:23:28,240 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:23:28,240 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:23:28,241 INFO  L85        PathProgramCache]: Analyzing trace with hash -1874179748, now seen corresponding path program 1 times
[2022-12-13 15:23:28,241 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:23:28,241 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880415904]
[2022-12-13 15:23:28,241 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:23:28,241 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:23:28,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:23:33,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 5002 backedges. 3594 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked.
[2022-12-13 15:23:33,338 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:23:33,338 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880415904]
[2022-12-13 15:23:33,338 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880415904] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:23:33,338 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:23:33,338 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:23:33,338 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602780431]
[2022-12-13 15:23:33,338 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:23:33,340 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 15:23:33,340 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:23:33,341 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 15:23:33,341 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:23:33,341 INFO  L87              Difference]: Start difference. First operand 428330 states and 431936 transitions. Second operand  has 4 states, 4 states have (on average 652.75) internal successors, (2611), 3 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:23:40,430 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:23:40,431 INFO  L93              Difference]: Finished difference Result 883828 states and 891272 transitions.
[2022-12-13 15:23:40,431 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 15:23:40,431 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 652.75) internal successors, (2611), 3 states have internal predecessors, (2611), 0 states have call successors, (0), 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 3792
[2022-12-13 15:23:40,432 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:23:40,904 INFO  L225             Difference]: With dead ends: 883828
[2022-12-13 15:23:40,904 INFO  L226             Difference]: Without dead ends: 455487
[2022-12-13 15:23:41,000 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:23:41,000 INFO  L413           NwaCegarLoop]: 718 mSDtfsCounter, 3055 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 7913 mSolverCounterSat, 762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3055 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 8675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 762 IncrementalHoareTripleChecker+Valid, 7913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2022-12-13 15:23:41,000 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3055 Valid, 913 Invalid, 8675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [762 Valid, 7913 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2022-12-13 15:23:41,345 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 455487 states.
[2022-12-13 15:23:44,466 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 455487 to 435109.
[2022-12-13 15:23:44,597 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 435109 states, 435108 states have (on average 1.0082508250825082) internal successors, (438698), 435108 states have internal predecessors, (438698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:23:45,267 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 435109 states to 435109 states and 438698 transitions.
[2022-12-13 15:23:45,268 INFO  L78                 Accepts]: Start accepts. Automaton has 435109 states and 438698 transitions. Word has length 3792
[2022-12-13 15:23:45,269 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:23:45,269 INFO  L495      AbstractCegarLoop]: Abstraction has 435109 states and 438698 transitions.
[2022-12-13 15:23:45,269 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 652.75) internal successors, (2611), 3 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:23:45,269 INFO  L276                IsEmpty]: Start isEmpty. Operand 435109 states and 438698 transitions.
[2022-12-13 15:23:45,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3913
[2022-12-13 15:23:45,764 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:23:45,766 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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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]
[2022-12-13 15:23:45,766 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2022-12-13 15:23:45,766 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:23:45,767 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:23:45,768 INFO  L85        PathProgramCache]: Analyzing trace with hash 1848468512, now seen corresponding path program 1 times
[2022-12-13 15:23:45,768 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:23:45,768 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647224580]
[2022-12-13 15:23:45,768 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:23:45,768 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:23:46,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:23:50,265 INFO  L134       CoverageAnalysis]: Checked inductivity of 5004 backedges. 2553 proven. 0 refuted. 0 times theorem prover too weak. 2451 trivial. 0 not checked.
[2022-12-13 15:23:50,265 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:23:50,265 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647224580]
[2022-12-13 15:23:50,265 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647224580] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:23:50,265 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:23:50,266 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:23:50,266 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996673358]
[2022-12-13 15:23:50,267 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:23:50,270 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:23:50,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:23:50,272 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:23:50,272 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:23:50,273 INFO  L87              Difference]: Start difference. First operand 435109 states and 438698 transitions. Second operand  has 3 states, 3 states have (on average 808.3333333333334) internal successors, (2425), 3 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:23:55,939 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:23:55,939 INFO  L93              Difference]: Finished difference Result 875323 states and 882567 transitions.
[2022-12-13 15:23:55,939 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:23:55,939 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 808.3333333333334) internal successors, (2425), 3 states have internal predecessors, (2425), 0 states have call successors, (0), 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 3912
[2022-12-13 15:23:55,940 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:23:56,433 INFO  L225             Difference]: With dead ends: 875323
[2022-12-13 15:23:56,433 INFO  L226             Difference]: Without dead ends: 441912
[2022-12-13 15:23:56,560 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:23:56,560 INFO  L413           NwaCegarLoop]: 2796 mSDtfsCounter, 1154 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 4435 mSolverCounterSat, 580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 2986 SdHoareTripleChecker+Invalid, 5015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 580 IncrementalHoareTripleChecker+Valid, 4435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2022-12-13 15:23:56,561 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 2986 Invalid, 5015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [580 Valid, 4435 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2022-12-13 15:23:56,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 441912 states.
[2022-12-13 15:23:59,995 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 441912 to 440196.
[2022-12-13 15:24:00,119 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 440196 states, 440195 states have (on average 1.00661752178012) internal successors, (443108), 440195 states have internal predecessors, (443108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:24:00,735 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 440196 states to 440196 states and 443108 transitions.
[2022-12-13 15:24:00,735 INFO  L78                 Accepts]: Start accepts. Automaton has 440196 states and 443108 transitions. Word has length 3912
[2022-12-13 15:24:00,735 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:24:00,736 INFO  L495      AbstractCegarLoop]: Abstraction has 440196 states and 443108 transitions.
[2022-12-13 15:24:00,736 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 808.3333333333334) internal successors, (2425), 3 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:24:00,736 INFO  L276                IsEmpty]: Start isEmpty. Operand 440196 states and 443108 transitions.
[2022-12-13 15:24:01,227 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4169
[2022-12-13 15:24:01,227 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:24:01,228 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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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]
[2022-12-13 15:24:01,228 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2022-12-13 15:24:01,228 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:24:01,228 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:24:01,229 INFO  L85        PathProgramCache]: Analyzing trace with hash -281584541, now seen corresponding path program 1 times
[2022-12-13 15:24:01,229 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:24:01,229 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999918391]
[2022-12-13 15:24:01,229 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:24:01,229 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:24:01,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:24:08,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 6956 backedges. 4246 proven. 0 refuted. 0 times theorem prover too weak. 2710 trivial. 0 not checked.
[2022-12-13 15:24:08,247 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:24:08,247 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999918391]
[2022-12-13 15:24:08,247 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999918391] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:24:08,247 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:24:08,247 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:24:08,247 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257346013]
[2022-12-13 15:24:08,247 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:24:08,249 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:24:08,249 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:24:08,250 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:24:08,250 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:24:08,250 INFO  L87              Difference]: Start difference. First operand 440196 states and 443108 transitions. Second operand  has 3 states, 3 states have (on average 813.3333333333334) internal successors, (2440), 3 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:24:13,426 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:24:13,426 INFO  L93              Difference]: Finished difference Result 892296 states and 898172 transitions.
[2022-12-13 15:24:13,427 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:24:13,427 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 813.3333333333334) internal successors, (2440), 3 states have internal predecessors, (2440), 0 states have call successors, (0), 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 4168
[2022-12-13 15:24:13,428 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:24:13,908 INFO  L225             Difference]: With dead ends: 892296
[2022-12-13 15:24:13,908 INFO  L226             Difference]: Without dead ends: 452101
[2022-12-13 15:24:14,074 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:24:14,075 INFO  L413           NwaCegarLoop]: 2839 mSDtfsCounter, 1364 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 4555 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 4642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2022-12-13 15:24:14,075 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 3013 Invalid, 4642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4555 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2022-12-13 15:24:14,442 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 452101 states.
[2022-12-13 15:24:18,158 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 452101 to 438498.
[2022-12-13 15:24:18,290 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 438498 states, 438497 states have (on average 1.0064926327888217) internal successors, (441344), 438497 states have internal predecessors, (441344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:24:18,709 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 438498 states to 438498 states and 441344 transitions.
[2022-12-13 15:24:18,709 INFO  L78                 Accepts]: Start accepts. Automaton has 438498 states and 441344 transitions. Word has length 4168
[2022-12-13 15:24:18,710 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:24:18,710 INFO  L495      AbstractCegarLoop]: Abstraction has 438498 states and 441344 transitions.
[2022-12-13 15:24:18,710 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 813.3333333333334) internal successors, (2440), 3 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:24:18,711 INFO  L276                IsEmpty]: Start isEmpty. Operand 438498 states and 441344 transitions.
[2022-12-13 15:24:19,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4207
[2022-12-13 15:24:19,259 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:24:19,260 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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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]
[2022-12-13 15:24:19,260 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2022-12-13 15:24:19,260 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:24:19,260 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:24:19,261 INFO  L85        PathProgramCache]: Analyzing trace with hash -741691156, now seen corresponding path program 1 times
[2022-12-13 15:24:19,261 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:24:19,261 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328681217]
[2022-12-13 15:24:19,261 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:24:19,261 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:24:19,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:24:24,755 INFO  L134       CoverageAnalysis]: Checked inductivity of 7299 backedges. 5451 proven. 0 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked.
[2022-12-13 15:24:24,755 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:24:24,756 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328681217]
[2022-12-13 15:24:24,756 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328681217] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:24:24,756 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:24:24,757 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:24:24,757 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702309437]
[2022-12-13 15:24:24,757 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:24:24,759 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 15:24:24,759 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:24:24,762 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 15:24:24,762 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:24:24,762 INFO  L87              Difference]: Start difference. First operand 438498 states and 441344 transitions. Second operand  has 4 states, 4 states have (on average 676.75) internal successors, (2707), 3 states have internal predecessors, (2707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:24:31,247 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:24:31,247 INFO  L93              Difference]: Finished difference Result 907560 states and 913485 transitions.
[2022-12-13 15:24:31,247 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 15:24:31,248 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 676.75) internal successors, (2707), 3 states have internal predecessors, (2707), 0 states have call successors, (0), 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 4206
[2022-12-13 15:24:31,249 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:24:31,941 INFO  L225             Difference]: With dead ends: 907560
[2022-12-13 15:24:31,941 INFO  L226             Difference]: Without dead ends: 469062
[2022-12-13 15:24:32,039 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:24:32,040 INFO  L413           NwaCegarLoop]: 667 mSDtfsCounter, 4774 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 6027 mSolverCounterSat, 762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 6789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 762 IncrementalHoareTripleChecker+Valid, 6027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2022-12-13 15:24:32,040 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4774 Valid, 840 Invalid, 6789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [762 Valid, 6027 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2022-12-13 15:24:32,331 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 469062 states.
[2022-12-13 15:24:35,639 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 469062 to 443590.
[2022-12-13 15:24:35,785 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 443590 states, 443589 states have (on average 1.0065353288742507) internal successors, (446488), 443589 states have internal predecessors, (446488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:24:36,429 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 443590 states to 443590 states and 446488 transitions.
[2022-12-13 15:24:36,430 INFO  L78                 Accepts]: Start accepts. Automaton has 443590 states and 446488 transitions. Word has length 4206
[2022-12-13 15:24:36,430 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:24:36,430 INFO  L495      AbstractCegarLoop]: Abstraction has 443590 states and 446488 transitions.
[2022-12-13 15:24:36,431 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 676.75) internal successors, (2707), 3 states have internal predecessors, (2707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:24:36,431 INFO  L276                IsEmpty]: Start isEmpty. Operand 443590 states and 446488 transitions.
[2022-12-13 15:24:36,788 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4835
[2022-12-13 15:24:36,788 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:24:36,789 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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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]
[2022-12-13 15:24:36,789 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2022-12-13 15:24:36,789 INFO  L420      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:24:36,789 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:24:36,790 INFO  L85        PathProgramCache]: Analyzing trace with hash -2080945278, now seen corresponding path program 1 times
[2022-12-13 15:24:36,790 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:24:36,790 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973380851]
[2022-12-13 15:24:36,790 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:24:36,790 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:24:37,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:24:52,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 7609 backedges. 5104 proven. 1358 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked.
[2022-12-13 15:24:52,370 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:24:52,371 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973380851]
[2022-12-13 15:24:52,371 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973380851] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 15:24:52,371 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850324445]
[2022-12-13 15:24:52,371 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:24:52,371 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:24:52,371 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 15:24:52,372 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 15:24:52,373 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-12-13 15:24:53,460 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:24:53,476 INFO  L263         TraceCheckSpWp]: Trace formula consists of 5176 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-12-13 15:24:53,505 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 15:24:54,089 INFO  L134       CoverageAnalysis]: Checked inductivity of 7609 backedges. 5679 proven. 0 refuted. 0 times theorem prover too weak. 1930 trivial. 0 not checked.
[2022-12-13 15:24:54,090 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 15:24:54,090 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850324445] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:24:54,090 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 15:24:54,090 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9
[2022-12-13 15:24:54,091 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553979495]
[2022-12-13 15:24:54,091 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:24:54,092 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:24:54,092 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:24:54,093 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:24:54,093 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2022-12-13 15:24:54,094 INFO  L87              Difference]: Start difference. First operand 443590 states and 446488 transitions. Second operand  has 3 states, 3 states have (on average 1151.0) internal successors, (3453), 3 states have internal predecessors, (3453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:25:00,048 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:25:00,048 INFO  L93              Difference]: Finished difference Result 953448 states and 959847 transitions.
[2022-12-13 15:25:00,049 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:25:00,049 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1151.0) internal successors, (3453), 3 states have internal predecessors, (3453), 0 states have call successors, (0), 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 4834
[2022-12-13 15:25:00,051 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:25:00,605 INFO  L225             Difference]: With dead ends: 953448
[2022-12-13 15:25:00,605 INFO  L226             Difference]: Without dead ends: 511558
[2022-12-13 15:25:00,760 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4840 GetRequests, 4833 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2022-12-13 15:25:00,760 INFO  L413           NwaCegarLoop]: 2822 mSDtfsCounter, 1059 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 4652 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 2984 SdHoareTripleChecker+Invalid, 5112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 4652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2022-12-13 15:25:00,760 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 2984 Invalid, 5112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 4652 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2022-12-13 15:25:01,176 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 511558 states.
[2022-12-13 15:25:05,001 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 511558 to 489436.
[2022-12-13 15:25:05,178 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 489436 states, 489435 states have (on average 1.0062357616435278) internal successors, (492487), 489435 states have internal predecessors, (492487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:25:05,854 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 489436 states to 489436 states and 492487 transitions.
[2022-12-13 15:25:05,854 INFO  L78                 Accepts]: Start accepts. Automaton has 489436 states and 492487 transitions. Word has length 4834
[2022-12-13 15:25:05,856 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:25:05,856 INFO  L495      AbstractCegarLoop]: Abstraction has 489436 states and 492487 transitions.
[2022-12-13 15:25:05,856 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1151.0) internal successors, (3453), 3 states have internal predecessors, (3453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:25:05,856 INFO  L276                IsEmpty]: Start isEmpty. Operand 489436 states and 492487 transitions.
[2022-12-13 15:25:06,582 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5232
[2022-12-13 15:25:06,582 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:25:06,583 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:25:06,591 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-12-13 15:25:06,783 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2022-12-13 15:25:06,784 INFO  L420      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:25:06,784 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:25:06,784 INFO  L85        PathProgramCache]: Analyzing trace with hash 1302290739, now seen corresponding path program 1 times
[2022-12-13 15:25:06,785 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:25:06,785 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101305523]
[2022-12-13 15:25:06,785 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:25:06,785 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:25:07,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:25:39,381 INFO  L134       CoverageAnalysis]: Checked inductivity of 8810 backedges. 5953 proven. 0 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked.
[2022-12-13 15:25:39,381 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:25:39,381 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101305523]
[2022-12-13 15:25:39,382 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101305523] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:25:39,382 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:25:39,382 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2022-12-13 15:25:39,382 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686897417]
[2022-12-13 15:25:39,382 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:25:39,383 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-12-13 15:25:39,383 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:25:39,385 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-12-13 15:25:39,385 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240
[2022-12-13 15:25:39,386 INFO  L87              Difference]: Start difference. First operand 489436 states and 492487 transitions. Second operand  has 16 states, 16 states have (on average 209.9375) internal successors, (3359), 15 states have internal predecessors, (3359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:26:05,972 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:26:05,972 INFO  L93              Difference]: Finished difference Result 1064956 states and 1071499 transitions.
[2022-12-13 15:26:05,972 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. 
[2022-12-13 15:26:05,973 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 209.9375) internal successors, (3359), 15 states have internal predecessors, (3359), 0 states have call successors, (0), 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 5231
[2022-12-13 15:26:05,974 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:26:06,548 INFO  L225             Difference]: With dead ends: 1064956
[2022-12-13 15:26:06,548 INFO  L226             Difference]: Without dead ends: 577220
[2022-12-13 15:26:06,721 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=684, Invalid=1866, Unknown=0, NotChecked=0, Total=2550
[2022-12-13 15:26:06,721 INFO  L413           NwaCegarLoop]: 638 mSDtfsCounter, 14541 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 44721 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14541 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 45266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 44721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time
[2022-12-13 15:26:06,721 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14541 Valid, 2162 Invalid, 45266 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [545 Valid, 44721 Invalid, 0 Unknown, 0 Unchecked, 22.4s Time]
[2022-12-13 15:26:07,168 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 577220 states.
[2022-12-13 15:26:10,780 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 577220 to 490610.
[2022-12-13 15:26:11,031 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 490610 states, 490609 states have (on average 1.0061861890018324) internal successors, (493644), 490609 states have internal predecessors, (493644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:26:11,516 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 490610 states to 490610 states and 493644 transitions.
[2022-12-13 15:26:11,517 INFO  L78                 Accepts]: Start accepts. Automaton has 490610 states and 493644 transitions. Word has length 5231
[2022-12-13 15:26:11,518 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:26:11,518 INFO  L495      AbstractCegarLoop]: Abstraction has 490610 states and 493644 transitions.
[2022-12-13 15:26:11,518 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 209.9375) internal successors, (3359), 15 states have internal predecessors, (3359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:26:11,518 INFO  L276                IsEmpty]: Start isEmpty. Operand 490610 states and 493644 transitions.
[2022-12-13 15:26:12,024 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5384
[2022-12-13 15:26:12,024 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:26:12,025 INFO  L195           NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:26:12,025 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2022-12-13 15:26:12,025 INFO  L420      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:26:12,025 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:26:12,026 INFO  L85        PathProgramCache]: Analyzing trace with hash -500086352, now seen corresponding path program 1 times
[2022-12-13 15:26:12,026 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:26:12,026 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110590003]
[2022-12-13 15:26:12,026 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:26:12,026 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:26:12,460 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:26:28,538 INFO  L134       CoverageAnalysis]: Checked inductivity of 9909 backedges. 4436 proven. 4 refuted. 0 times theorem prover too weak. 5469 trivial. 0 not checked.
[2022-12-13 15:26:28,538 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:26:28,538 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110590003]
[2022-12-13 15:26:28,538 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110590003] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 15:26:28,538 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658303101]
[2022-12-13 15:26:28,539 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:26:28,539 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:26:28,539 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 15:26:28,540 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 15:26:28,541 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-12-13 15:26:29,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:26:29,820 INFO  L263         TraceCheckSpWp]: Trace formula consists of 5884 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-12-13 15:26:29,851 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 15:26:30,910 INFO  L134       CoverageAnalysis]: Checked inductivity of 9909 backedges. 6889 proven. 0 refuted. 0 times theorem prover too weak. 3020 trivial. 0 not checked.
[2022-12-13 15:26:30,911 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 15:26:30,911 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658303101] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:26:30,911 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 15:26:30,912 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8
[2022-12-13 15:26:30,912 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569989595]
[2022-12-13 15:26:30,912 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:26:30,913 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:26:30,914 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:26:30,915 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:26:30,915 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2022-12-13 15:26:30,916 INFO  L87              Difference]: Start difference. First operand 490610 states and 493644 transitions. Second operand  has 3 states, 3 states have (on average 1176.0) internal successors, (3528), 3 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:26:37,460 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:26:37,460 INFO  L93              Difference]: Finished difference Result 999942 states and 1006076 transitions.
[2022-12-13 15:26:37,460 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:26:37,461 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1176.0) internal successors, (3528), 3 states have internal predecessors, (3528), 0 states have call successors, (0), 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 5383
[2022-12-13 15:26:37,462 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:26:38,004 INFO  L225             Difference]: With dead ends: 999942
[2022-12-13 15:26:38,004 INFO  L226             Difference]: Without dead ends: 511032
[2022-12-13 15:26:38,186 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5388 GetRequests, 5382 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2022-12-13 15:26:38,187 INFO  L413           NwaCegarLoop]: 506 mSDtfsCounter, 695 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 4314 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 5106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 4314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2022-12-13 15:26:38,187 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 554 Invalid, 5106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 4314 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2022-12-13 15:26:38,603 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 511032 states.
[2022-12-13 15:26:42,488 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 511032 to 490608.
[2022-12-13 15:26:42,620 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 490608 states, 490607 states have (on average 1.0060007297083002) internal successors, (493551), 490607 states have internal predecessors, (493551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:26:43,262 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 490608 states to 490608 states and 493551 transitions.
[2022-12-13 15:26:43,262 INFO  L78                 Accepts]: Start accepts. Automaton has 490608 states and 493551 transitions. Word has length 5383
[2022-12-13 15:26:43,263 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:26:43,263 INFO  L495      AbstractCegarLoop]: Abstraction has 490608 states and 493551 transitions.
[2022-12-13 15:26:43,263 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1176.0) internal successors, (3528), 3 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:26:43,263 INFO  L276                IsEmpty]: Start isEmpty. Operand 490608 states and 493551 transitions.
[2022-12-13 15:26:43,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5525
[2022-12-13 15:26:43,919 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:26:43,920 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:26:43,928 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2022-12-13 15:26:44,121 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:26:44,122 INFO  L420      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:26:44,123 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:26:44,124 INFO  L85        PathProgramCache]: Analyzing trace with hash -476990203, now seen corresponding path program 1 times
[2022-12-13 15:26:44,125 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:26:44,125 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967855249]
[2022-12-13 15:26:44,126 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:26:44,126 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:26:44,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:27:02,728 INFO  L134       CoverageAnalysis]: Checked inductivity of 11772 backedges. 7170 proven. 1358 refuted. 0 times theorem prover too weak. 3244 trivial. 0 not checked.
[2022-12-13 15:27:02,728 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:27:02,728 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967855249]
[2022-12-13 15:27:02,728 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967855249] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 15:27:02,728 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167872407]
[2022-12-13 15:27:02,729 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:27:02,729 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:27:02,729 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 15:27:02,730 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 15:27:02,730 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-12-13 15:27:04,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:27:04,096 INFO  L263         TraceCheckSpWp]: Trace formula consists of 5947 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-12-13 15:27:04,125 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 15:27:04,444 INFO  L134       CoverageAnalysis]: Checked inductivity of 11772 backedges. 8086 proven. 0 refuted. 0 times theorem prover too weak. 3686 trivial. 0 not checked.
[2022-12-13 15:27:04,444 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 15:27:04,445 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [167872407] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:27:04,445 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 15:27:04,445 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9
[2022-12-13 15:27:04,446 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627568467]
[2022-12-13 15:27:04,446 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:27:04,447 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:27:04,447 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:27:04,448 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:27:04,448 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2022-12-13 15:27:04,449 INFO  L87              Difference]: Start difference. First operand 490608 states and 493551 transitions. Second operand  has 3 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:27:10,006 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:27:10,006 INFO  L93              Difference]: Finished difference Result 957418 states and 963134 transitions.
[2022-12-13 15:27:10,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:27:10,008 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 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 5524
[2022-12-13 15:27:10,010 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:27:10,516 INFO  L225             Difference]: With dead ends: 957418
[2022-12-13 15:27:10,516 INFO  L226             Difference]: Without dead ends: 463410
[2022-12-13 15:27:10,706 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5530 GetRequests, 5523 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2022-12-13 15:27:10,706 INFO  L413           NwaCegarLoop]: 2482 mSDtfsCounter, 1516 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4259 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 4828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 4259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2022-12-13 15:27:10,707 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 2593 Invalid, 4828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 4259 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2022-12-13 15:27:11,094 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 463410 states.
[2022-12-13 15:27:14,700 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 463410 to 459998.
[2022-12-13 15:27:14,835 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 459998 states, 459997 states have (on average 1.0045826385824255) internal successors, (462105), 459997 states have internal predecessors, (462105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:27:15,465 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 459998 states to 459998 states and 462105 transitions.
[2022-12-13 15:27:15,465 INFO  L78                 Accepts]: Start accepts. Automaton has 459998 states and 462105 transitions. Word has length 5524
[2022-12-13 15:27:15,466 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:27:15,466 INFO  L495      AbstractCegarLoop]: Abstraction has 459998 states and 462105 transitions.
[2022-12-13 15:27:15,467 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:27:15,467 INFO  L276                IsEmpty]: Start isEmpty. Operand 459998 states and 462105 transitions.
[2022-12-13 15:27:16,013 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5560
[2022-12-13 15:27:16,013 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:27:16,014 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:27:16,022 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2022-12-13 15:27:16,214 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:27:16,216 INFO  L420      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:27:16,217 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:27:16,218 INFO  L85        PathProgramCache]: Analyzing trace with hash 1991856389, now seen corresponding path program 1 times
[2022-12-13 15:27:16,218 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:27:16,219 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409120454]
[2022-12-13 15:27:16,220 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:27:16,220 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:27:16,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:27:35,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 9065 backedges. 5728 proven. 1358 refuted. 0 times theorem prover too weak. 1979 trivial. 0 not checked.
[2022-12-13 15:27:35,344 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:27:35,344 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409120454]
[2022-12-13 15:27:35,344 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409120454] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 15:27:35,344 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680465007]
[2022-12-13 15:27:35,345 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:27:35,345 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:27:35,345 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 15:27:35,346 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 15:27:35,347 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-12-13 15:27:36,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:27:36,710 INFO  L263         TraceCheckSpWp]: Trace formula consists of 5930 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 15:27:36,741 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 15:27:39,543 INFO  L134       CoverageAnalysis]: Checked inductivity of 9065 backedges. 6457 proven. 0 refuted. 0 times theorem prover too weak. 2608 trivial. 0 not checked.
[2022-12-13 15:27:39,544 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 15:27:39,544 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680465007] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:27:39,544 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 15:27:39,545 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9
[2022-12-13 15:27:39,545 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922469326]
[2022-12-13 15:27:39,545 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:27:39,546 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 15:27:39,546 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:27:39,548 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 15:27:39,548 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2022-12-13 15:27:39,549 INFO  L87              Difference]: Start difference. First operand 459998 states and 462105 transitions. Second operand  has 4 states, 4 states have (on average 817.5) internal successors, (3270), 3 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:27:46,988 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:27:46,988 INFO  L93              Difference]: Finished difference Result 920001 states and 924213 transitions.
[2022-12-13 15:27:46,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 15:27:46,989 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 817.5) internal successors, (3270), 3 states have internal predecessors, (3270), 0 states have call successors, (0), 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 5559
[2022-12-13 15:27:46,990 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:27:47,445 INFO  L225             Difference]: With dead ends: 920001
[2022-12-13 15:27:47,445 INFO  L226             Difference]: Without dead ends: 460001
[2022-12-13 15:27:47,592 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5565 GetRequests, 5557 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2022-12-13 15:27:47,593 INFO  L413           NwaCegarLoop]: 803 mSDtfsCounter, 1964 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 8386 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1964 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 8579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 8386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2022-12-13 15:27:47,593 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1964 Valid, 1123 Invalid, 8579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 8386 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2022-12-13 15:27:48,160 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 460001 states.
[2022-12-13 15:27:51,495 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 460001 to 458295.
[2022-12-13 15:27:51,601 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 458295 states, 458294 states have (on average 1.0043334627989893) internal successors, (460280), 458294 states have internal predecessors, (460280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:27:52,014 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 458295 states to 458295 states and 460280 transitions.
[2022-12-13 15:27:52,014 INFO  L78                 Accepts]: Start accepts. Automaton has 458295 states and 460280 transitions. Word has length 5559
[2022-12-13 15:27:52,015 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:27:52,015 INFO  L495      AbstractCegarLoop]: Abstraction has 458295 states and 460280 transitions.
[2022-12-13 15:27:52,016 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 817.5) internal successors, (3270), 3 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:27:52,016 INFO  L276                IsEmpty]: Start isEmpty. Operand 458295 states and 460280 transitions.
[2022-12-13 15:27:52,656 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5798
[2022-12-13 15:27:52,656 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:27:52,657 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:27:52,665 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2022-12-13 15:27:52,857 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:27:52,859 INFO  L420      AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:27:52,859 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:27:52,861 INFO  L85        PathProgramCache]: Analyzing trace with hash -2054830531, now seen corresponding path program 1 times
[2022-12-13 15:27:52,862 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:27:52,862 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044078172]
[2022-12-13 15:27:52,863 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:27:52,864 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:27:53,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:28:16,657 INFO  L134       CoverageAnalysis]: Checked inductivity of 8624 backedges. 3686 proven. 0 refuted. 0 times theorem prover too weak. 4938 trivial. 0 not checked.
[2022-12-13 15:28:16,657 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:28:16,657 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044078172]
[2022-12-13 15:28:16,657 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044078172] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:28:16,657 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:28:16,658 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-12-13 15:28:16,658 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605935816]
[2022-12-13 15:28:16,658 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:28:16,659 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2022-12-13 15:28:16,659 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:28:16,660 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2022-12-13 15:28:16,660 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2022-12-13 15:28:16,661 INFO  L87              Difference]: Start difference. First operand 458295 states and 460280 transitions. Second operand  has 9 states, 9 states have (on average 312.6666666666667) internal successors, (2814), 8 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:28:35,734 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:28:35,734 INFO  L93              Difference]: Finished difference Result 2381694 states and 2392168 transitions.
[2022-12-13 15:28:35,735 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. 
[2022-12-13 15:28:35,735 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 312.6666666666667) internal successors, (2814), 8 states have internal predecessors, (2814), 0 states have call successors, (0), 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 5797
[2022-12-13 15:28:35,736 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:28:38,558 INFO  L225             Difference]: With dead ends: 2381694
[2022-12-13 15:28:38,558 INFO  L226             Difference]: Without dead ends: 1925099
[2022-12-13 15:28:38,800 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1836 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=919, Invalid=4337, Unknown=0, NotChecked=0, Total=5256
[2022-12-13 15:28:38,800 INFO  L413           NwaCegarLoop]: 5730 mSDtfsCounter, 16272 mSDsluCounter, 41420 mSDsCounter, 0 mSdLazyCounter, 17486 mSolverCounterSat, 853 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16272 SdHoareTripleChecker+Valid, 47150 SdHoareTripleChecker+Invalid, 18339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 853 IncrementalHoareTripleChecker+Valid, 17486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time
[2022-12-13 15:28:38,801 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16272 Valid, 47150 Invalid, 18339 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [853 Valid, 17486 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time]
[2022-12-13 15:28:40,156 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1925099 states.
[2022-12-13 15:28:50,524 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925099 to 458295.
[2022-12-13 15:28:50,651 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 458295 states, 458294 states have (on average 1.004324734777239) internal successors, (460276), 458294 states have internal predecessors, (460276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:28:51,328 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 458295 states to 458295 states and 460276 transitions.
[2022-12-13 15:28:51,329 INFO  L78                 Accepts]: Start accepts. Automaton has 458295 states and 460276 transitions. Word has length 5797
[2022-12-13 15:28:51,330 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:28:51,330 INFO  L495      AbstractCegarLoop]: Abstraction has 458295 states and 460276 transitions.
[2022-12-13 15:28:51,330 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 312.6666666666667) internal successors, (2814), 8 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:28:51,330 INFO  L276                IsEmpty]: Start isEmpty. Operand 458295 states and 460276 transitions.
[2022-12-13 15:28:51,893 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5861
[2022-12-13 15:28:51,893 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:28:51,894 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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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]
[2022-12-13 15:28:51,894 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2022-12-13 15:28:51,894 INFO  L420      AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:28:51,894 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:28:51,895 INFO  L85        PathProgramCache]: Analyzing trace with hash -807455797, now seen corresponding path program 1 times
[2022-12-13 15:28:51,895 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:28:51,895 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533802308]
[2022-12-13 15:28:51,895 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:28:51,895 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:28:52,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:29:06,237 INFO  L134       CoverageAnalysis]: Checked inductivity of 10869 backedges. 7546 proven. 114 refuted. 0 times theorem prover too weak. 3209 trivial. 0 not checked.
[2022-12-13 15:29:06,237 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:29:06,237 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533802308]
[2022-12-13 15:29:06,237 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533802308] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 15:29:06,237 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864880075]
[2022-12-13 15:29:06,238 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:29:06,238 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 15:29:06,238 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 15:29:06,239 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 15:29:06,240 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-12-13 15:29:07,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:29:07,632 INFO  L263         TraceCheckSpWp]: Trace formula consists of 6271 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 15:29:07,664 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 15:29:08,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 10869 backedges. 7660 proven. 0 refuted. 0 times theorem prover too weak. 3209 trivial. 0 not checked.
[2022-12-13 15:29:08,777 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 15:29:08,777 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [864880075] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:29:08,777 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 15:29:08,778 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2022-12-13 15:29:08,778 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496333590]
[2022-12-13 15:29:08,778 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:29:08,780 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:29:08,780 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:29:08,781 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:29:08,781 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2022-12-13 15:29:08,782 INFO  L87              Difference]: Start difference. First operand 458295 states and 460276 transitions. Second operand  has 3 states, 3 states have (on average 1090.0) internal successors, (3270), 3 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:29:14,019 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:29:14,019 INFO  L93              Difference]: Finished difference Result 926776 states and 930800 transitions.
[2022-12-13 15:29:14,020 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:29:14,020 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1090.0) internal successors, (3270), 3 states have internal predecessors, (3270), 0 states have call successors, (0), 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 5860
[2022-12-13 15:29:14,021 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:29:14,706 INFO  L225             Difference]: With dead ends: 926776
[2022-12-13 15:29:14,706 INFO  L226             Difference]: Without dead ends: 470181
[2022-12-13 15:29:14,872 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5864 GetRequests, 5859 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2022-12-13 15:29:14,872 INFO  L413           NwaCegarLoop]: 2578 mSDtfsCounter, 1220 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4311 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 4401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 4311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2022-12-13 15:29:14,873 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 2749 Invalid, 4401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 4311 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2022-12-13 15:29:15,201 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 470181 states.
[2022-12-13 15:29:18,855 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 470181 to 461691.
[2022-12-13 15:29:18,967 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 461691 states, 461690 states have (on average 1.0043232472005026) internal successors, (463686), 461690 states have internal predecessors, (463686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:29:19,378 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 461691 states to 461691 states and 463686 transitions.
[2022-12-13 15:29:19,378 INFO  L78                 Accepts]: Start accepts. Automaton has 461691 states and 463686 transitions. Word has length 5860
[2022-12-13 15:29:19,379 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:29:19,379 INFO  L495      AbstractCegarLoop]: Abstraction has 461691 states and 463686 transitions.
[2022-12-13 15:29:19,380 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1090.0) internal successors, (3270), 3 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 15:29:19,380 INFO  L276                IsEmpty]: Start isEmpty. Operand 461691 states and 463686 transitions.
[2022-12-13 15:29:20,045 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6255
[2022-12-13 15:29:20,045 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:29:20,046 INFO  L195           NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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[2022-12-13 15:29:20,055 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2022-12-13 15:29:20,247 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9afca7-f834-48ef-8bd9-4d6c37cfe728/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33
[2022-12-13 15:29:20,248 INFO  L420      AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:29:20,249 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:29:20,250 INFO  L85        PathProgramCache]: Analyzing trace with hash -524445399, now seen corresponding path program 1 times
[2022-12-13 15:29:20,250 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:29:20,251 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582919259]
[2022-12-13 15:29:20,253 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:29:20,253 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:29:20,908 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat