./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem05_label10.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/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_fe347663-1fd8-4f49-8f26-7be3160561e9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem05_label10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/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_fe347663-1fd8-4f49-8f26-7be3160561e9/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 b1a818c41c0bcdab79ea6d7d14d802a90be23933677f33761f4fad2cdf4b8776
--- 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 15:07:07,443 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-12-13 15:07:07,444 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 15:07:07,462 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 15:07:07,463 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 15:07:07,463 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 15:07:07,465 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 15:07:07,466 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 15:07:07,468 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 15:07:07,468 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 15:07:07,469 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 15:07:07,470 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 15:07:07,471 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 15:07:07,472 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 15:07:07,473 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 15:07:07,474 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 15:07:07,474 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 15:07:07,475 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 15:07:07,477 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 15:07:07,478 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 15:07:07,480 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 15:07:07,481 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 15:07:07,481 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 15:07:07,482 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 15:07:07,484 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 15:07:07,484 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 15:07:07,484 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 15:07:07,485 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 15:07:07,485 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 15:07:07,486 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 15:07:07,486 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 15:07:07,487 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 15:07:07,487 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 15:07:07,488 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 15:07:07,488 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 15:07:07,488 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 15:07:07,489 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 15:07:07,489 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 15:07:07,489 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 15:07:07,490 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 15:07:07,490 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 15:07:07,491 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-12-13 15:07:07,510 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-12-13 15:07:07,510 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 15:07:07,510 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 15:07:07,510 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 15:07:07,511 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 15:07:07,511 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 15:07:07,512 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 15:07:07,512 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-12-13 15:07:07,512 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-12-13 15:07:07,521 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 15:07:07,521 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-12-13 15:07:07,521 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-12-13 15:07:07,521 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-12-13 15:07:07,521 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-12-13 15:07:07,521 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-12-13 15:07:07,521 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 15:07:07,521 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-12-13 15:07:07,522 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-12-13 15:07:07,522 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-12-13 15:07:07,522 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-12-13 15:07:07,522 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-12-13 15:07:07,522 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 15:07:07,522 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-12-13 15:07:07,522 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-12-13 15:07:07,522 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 15:07:07,522 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 15:07:07,523 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 15:07:07,523 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-13 15:07:07,523 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-12-13 15:07:07,523 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-13 15:07:07,523 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-13 15:07:07,523 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-12-13 15:07:07,523 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2022-12-13 15:07:07,523 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-12-13 15:07:07,523 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2022-12-13 15:07:07,523 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_fe347663-1fd8-4f49-8f26-7be3160561e9/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_fe347663-1fd8-4f49-8f26-7be3160561e9/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 -> b1a818c41c0bcdab79ea6d7d14d802a90be23933677f33761f4fad2cdf4b8776
[2022-12-13 15:07:07,682 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 15:07:07,702 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 15:07:07,704 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 15:07:07,705 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-12-13 15:07:07,706 INFO  L275        PluginConnector]: CDTParser initialized
[2022-12-13 15:07:07,707 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-rers2012/Problem05_label10.c
[2022-12-13 15:07:10,380 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-12-13 15:07:10,800 INFO  L351              CDTParser]: Found 1 translation units.
[2022-12-13 15:07:10,800 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/sv-benchmarks/c/eca-rers2012/Problem05_label10.c
[2022-12-13 15:07:10,832 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/bin/uautomizer-uyxdKDjOR8/data/ab9006464/4dbfd9bc7595470d8abbd78bf2870a02/FLAG4dff07ba6
[2022-12-13 15:07:10,846 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/bin/uautomizer-uyxdKDjOR8/data/ab9006464/4dbfd9bc7595470d8abbd78bf2870a02
[2022-12-13 15:07:10,848 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 15:07:10,849 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 15:07:10,850 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 15:07:10,851 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 15:07:10,854 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 15:07:10,854 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:07:10" (1/1) ...
[2022-12-13 15:07:10,855 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369fbca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:10, skipping insertion in model container
[2022-12-13 15:07:10,855 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:07:10" (1/1) ...
[2022-12-13 15:07:10,861 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-12-13 15:07:11,017 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-12-13 15:07:12,341 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_fe347663-1fd8-4f49-8f26-7be3160561e9/sv-benchmarks/c/eca-rers2012/Problem05_label10.c[380522,380535]
[2022-12-13 15:07:12,358 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 15:07:12,367 INFO  L203         MainTranslator]: Completed pre-run
[2022-12-13 15:07:13,181 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_fe347663-1fd8-4f49-8f26-7be3160561e9/sv-benchmarks/c/eca-rers2012/Problem05_label10.c[380522,380535]
[2022-12-13 15:07:13,184 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 15:07:13,211 INFO  L208         MainTranslator]: Completed translation
[2022-12-13 15:07:13,211 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13 WrapperNode
[2022-12-13 15:07:13,211 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 15:07:13,212 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 15:07:13,212 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 15:07:13,212 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 15:07:13,217 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,278 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,563 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12346
[2022-12-13 15:07:13,563 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 15:07:13,564 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 15:07:13,564 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 15:07:13,564 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 15:07:13,571 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,571 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,603 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,604 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,723 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,747 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,759 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,768 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,798 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 15:07:13,799 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 15:07:13,799 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 15:07:13,799 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-12-13 15:07:13,799 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (1/1) ...
[2022-12-13 15:07:13,804 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 15:07:13,812 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 15:07:13,822 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 15:07:13,855 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe347663-1fd8-4f49-8f26-7be3160561e9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 15:07:13,885 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 15:07:13,885 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-13 15:07:13,885 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 15:07:13,885 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 15:07:13,950 INFO  L235             CfgBuilder]: Building ICFG
[2022-12-13 15:07:13,952 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 15:07:19,241 INFO  L276             CfgBuilder]: Performing block encoding
[2022-12-13 15:07:19,258 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 15:07:19,258 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-12-13 15:07:19,261 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:07:19 BoogieIcfgContainer
[2022-12-13 15:07:19,262 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 15:07:19,263 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 15:07:19,263 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 15:07:19,265 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-12-13 15:07:19,266 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:07:10" (1/3) ...
[2022-12-13 15:07:19,266 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efc70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:07:19, skipping insertion in model container
[2022-12-13 15:07:19,266 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:07:13" (2/3) ...
[2022-12-13 15:07:19,266 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efc70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:07:19, skipping insertion in model container
[2022-12-13 15:07:19,266 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:07:19" (3/3) ...
[2022-12-13 15:07:19,267 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label10.c
[2022-12-13 15:07:19,281 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 15:07:19,281 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-12-13 15:07:19,346 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 15:07:19,351 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;@33db5d93, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 15:07:19,351 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-12-13 15:07:19,358 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 15:07:19,428 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1680
[2022-12-13 15:07:19,428 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:07:19,429 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, 1, 1, 1]
[2022-12-13 15:07:19,429 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:07:19,433 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:07:19,434 INFO  L85        PathProgramCache]: Analyzing trace with hash 1181606065, now seen corresponding path program 1 times
[2022-12-13 15:07:19,440 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:07:19,440 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020529731]
[2022-12-13 15:07:19,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:07:19,441 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:07:19,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:07:22,065 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 15:07:22,065 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:07:22,065 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020529731]
[2022-12-13 15:07:22,066 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020529731] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:07:22,066 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:07:22,066 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 15:07:22,067 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698815695]
[2022-12-13 15:07:22,068 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:07:22,072 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:07:22,073 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:07:22,101 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:07:22,101 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:07:22,108 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 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 2 states have internal predecessors, (1679), 0 states have call successors, (0), 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 15:07:27,274 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:07:27,274 INFO  L93              Difference]: Finished difference Result 6156 states and 11651 transitions.
[2022-12-13 15:07:27,275 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:07:27,277 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 2 states have internal predecessors, (1679), 0 states have call successors, (0), 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 1679
[2022-12-13 15:07:27,281 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:07:27,301 INFO  L225             Difference]: With dead ends: 6156
[2022-12-13 15:07:27,301 INFO  L226             Difference]: Without dead ends: 3907
[2022-12-13 15:07:27,309 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 15:07:27,311 INFO  L413           NwaCegarLoop]: 1759 mSDtfsCounter, 297 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 5604 mSolverCounterSat, 1469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 7073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1469 IncrementalHoareTripleChecker+Valid, 5604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2022-12-13 15:07:27,312 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 2072 Invalid, 7073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1469 Valid, 5604 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2022-12-13 15:07:27,329 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3907 states.
[2022-12-13 15:07:27,423 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3907 to 3900.
[2022-12-13 15:07:27,431 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3900 states, 3899 states have (on average 1.6196460630931009) internal successors, (6315), 3899 states have internal predecessors, (6315), 0 states have call successors, (0), 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 15:07:27,441 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3900 states to 3900 states and 6315 transitions.
[2022-12-13 15:07:27,442 INFO  L78                 Accepts]: Start accepts. Automaton has 3900 states and 6315 transitions. Word has length 1679
[2022-12-13 15:07:27,445 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:07:27,445 INFO  L495      AbstractCegarLoop]: Abstraction has 3900 states and 6315 transitions.
[2022-12-13 15:07:27,446 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 2 states have internal predecessors, (1679), 0 states have call successors, (0), 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 15:07:27,447 INFO  L276                IsEmpty]: Start isEmpty. Operand 3900 states and 6315 transitions.
[2022-12-13 15:07:27,560 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1685
[2022-12-13 15:07:27,560 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:07:27,561 INFO  L195           NwaCegarLoop]: trace histogram [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, 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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]
[2022-12-13 15:07:27,561 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-13 15:07:27,561 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:07:27,562 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:07:27,563 INFO  L85        PathProgramCache]: Analyzing trace with hash 730501653, now seen corresponding path program 1 times
[2022-12-13 15:07:27,563 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:07:27,563 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342644099]
[2022-12-13 15:07:27,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:07:27,563 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:07:27,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:07:29,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 15:07:29,104 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:07:29,104 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342644099]
[2022-12-13 15:07:29,105 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342644099] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:07:29,105 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:07:29,105 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 15:07:29,105 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494893985]
[2022-12-13 15:07:29,105 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:07:29,107 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:07:29,107 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:07:29,108 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:07:29,109 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:07:29,109 INFO  L87              Difference]: Start difference. First operand 3900 states and 6315 transitions. Second operand  has 3 states, 3 states have (on average 561.3333333333334) internal successors, (1684), 2 states have internal predecessors, (1684), 0 states have call successors, (0), 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 15:07:34,379 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:07:34,379 INFO  L93              Difference]: Finished difference Result 11343 states and 18473 transitions.
[2022-12-13 15:07:34,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:07:34,380 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 561.3333333333334) internal successors, (1684), 2 states have internal predecessors, (1684), 0 states have call successors, (0), 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 1684
[2022-12-13 15:07:34,380 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:07:34,393 INFO  L225             Difference]: With dead ends: 11343
[2022-12-13 15:07:34,393 INFO  L226             Difference]: Without dead ends: 7445
[2022-12-13 15:07:34,397 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 15:07:34,398 INFO  L413           NwaCegarLoop]: 1348 mSDtfsCounter, 1996 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 5241 mSolverCounterSat, 2351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 7592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2351 IncrementalHoareTripleChecker+Valid, 5241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2022-12-13 15:07:34,399 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 1568 Invalid, 7592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2351 Valid, 5241 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2022-12-13 15:07:34,405 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7445 states.
[2022-12-13 15:07:34,473 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7445 to 7361.
[2022-12-13 15:07:34,482 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7361 states, 7360 states have (on average 1.5040760869565217) internal successors, (11070), 7360 states have internal predecessors, (11070), 0 states have call successors, (0), 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 15:07:34,491 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 11070 transitions.
[2022-12-13 15:07:34,492 INFO  L78                 Accepts]: Start accepts. Automaton has 7361 states and 11070 transitions. Word has length 1684
[2022-12-13 15:07:34,492 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:07:34,492 INFO  L495      AbstractCegarLoop]: Abstraction has 7361 states and 11070 transitions.
[2022-12-13 15:07:34,493 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 561.3333333333334) internal successors, (1684), 2 states have internal predecessors, (1684), 0 states have call successors, (0), 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 15:07:34,493 INFO  L276                IsEmpty]: Start isEmpty. Operand 7361 states and 11070 transitions.
[2022-12-13 15:07:34,516 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1687
[2022-12-13 15:07:34,517 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:07:34,518 INFO  L195           NwaCegarLoop]: trace histogram [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, 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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]
[2022-12-13 15:07:34,518 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-13 15:07:34,518 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:07:34,519 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:07:34,520 INFO  L85        PathProgramCache]: Analyzing trace with hash -194383366, now seen corresponding path program 1 times
[2022-12-13 15:07:34,520 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:07:34,520 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329101552]
[2022-12-13 15:07:34,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:07:34,521 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:07:34,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:07:37,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 15:07:37,043 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:07:37,043 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329101552]
[2022-12-13 15:07:37,043 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329101552] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:07:37,043 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:07:37,044 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:07:37,044 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85490537]
[2022-12-13 15:07:37,044 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:07:37,046 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 15:07:37,046 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:07:37,047 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 15:07:37,048 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:07:37,048 INFO  L87              Difference]: Start difference. First operand 7361 states and 11070 transitions. Second operand  has 4 states, 4 states have (on average 421.5) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 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 15:07:45,777 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:07:45,777 INFO  L93              Difference]: Finished difference Result 23148 states and 35021 transitions.
[2022-12-13 15:07:45,778 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 15:07:45,779 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 421.5) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 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 1686
[2022-12-13 15:07:45,780 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:07:45,806 INFO  L225             Difference]: With dead ends: 23148
[2022-12-13 15:07:45,806 INFO  L226             Difference]: Without dead ends: 14137
[2022-12-13 15:07:45,811 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 15:07:45,813 INFO  L413           NwaCegarLoop]: 1032 mSDtfsCounter, 2408 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 9712 mSolverCounterSat, 3394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 13106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3394 IncrementalHoareTripleChecker+Valid, 9712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time
[2022-12-13 15:07:45,813 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 1446 Invalid, 13106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3394 Valid, 9712 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time]
[2022-12-13 15:07:45,823 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14137 states.
[2022-12-13 15:07:45,960 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14137 to 14137.
[2022-12-13 15:07:45,977 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14137 states, 14136 states have (on average 1.2422184493491795) internal successors, (17560), 14136 states have internal predecessors, (17560), 0 states have call successors, (0), 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 15:07:45,996 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14137 states to 14137 states and 17560 transitions.
[2022-12-13 15:07:45,997 INFO  L78                 Accepts]: Start accepts. Automaton has 14137 states and 17560 transitions. Word has length 1686
[2022-12-13 15:07:45,997 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:07:45,997 INFO  L495      AbstractCegarLoop]: Abstraction has 14137 states and 17560 transitions.
[2022-12-13 15:07:45,998 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 421.5) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 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 15:07:45,998 INFO  L276                IsEmpty]: Start isEmpty. Operand 14137 states and 17560 transitions.
[2022-12-13 15:07:46,031 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1698
[2022-12-13 15:07:46,031 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:07:46,032 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]
[2022-12-13 15:07:46,032 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-12-13 15:07:46,032 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:07:46,033 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:07:46,033 INFO  L85        PathProgramCache]: Analyzing trace with hash -1621425633, now seen corresponding path program 1 times
[2022-12-13 15:07:46,033 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:07:46,034 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507193340]
[2022-12-13 15:07:46,034 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:07:46,034 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:07:46,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:07:47,360 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 15:07:47,360 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:07:47,360 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507193340]
[2022-12-13 15:07:47,360 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507193340] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:07:47,361 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:07:47,361 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:07:47,361 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175217794]
[2022-12-13 15:07:47,361 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:07:47,362 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:07:47,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:07:47,363 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:07:47,363 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:07:47,364 INFO  L87              Difference]: Start difference. First operand 14137 states and 17560 transitions. Second operand  has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 3 states have internal predecessors, (1697), 0 states have call successors, (0), 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 15:07:52,322 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:07:52,323 INFO  L93              Difference]: Finished difference Result 42005 states and 52175 transitions.
[2022-12-13 15:07:52,323 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:07:52,324 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 3 states have internal predecessors, (1697), 0 states have call successors, (0), 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 1697
[2022-12-13 15:07:52,325 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:07:52,360 INFO  L225             Difference]: With dead ends: 42005
[2022-12-13 15:07:52,360 INFO  L226             Difference]: Without dead ends: 27870
[2022-12-13 15:07:52,370 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 15:07:52,371 INFO  L413           NwaCegarLoop]: 3359 mSDtfsCounter, 370 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 5187 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 3762 SdHoareTripleChecker+Invalid, 5823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 5187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2022-12-13 15:07:52,371 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 3762 Invalid, 5823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 5187 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2022-12-13 15:07:52,389 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27870 states.
[2022-12-13 15:07:52,590 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27870 to 27824.
[2022-12-13 15:07:52,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27824 states, 27823 states have (on average 1.179959026704525) internal successors, (32830), 27823 states have internal predecessors, (32830), 0 states have call successors, (0), 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 15:07:52,636 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27824 states to 27824 states and 32830 transitions.
[2022-12-13 15:07:52,637 INFO  L78                 Accepts]: Start accepts. Automaton has 27824 states and 32830 transitions. Word has length 1697
[2022-12-13 15:07:52,637 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:07:52,638 INFO  L495      AbstractCegarLoop]: Abstraction has 27824 states and 32830 transitions.
[2022-12-13 15:07:52,638 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 3 states have internal predecessors, (1697), 0 states have call successors, (0), 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 15:07:52,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 27824 states and 32830 transitions.
[2022-12-13 15:07:52,684 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1714
[2022-12-13 15:07:52,684 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:07:52,685 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:52,685 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-12-13 15:07:52,685 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:07:52,685 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:07:52,686 INFO  L85        PathProgramCache]: Analyzing trace with hash -1644750901, now seen corresponding path program 1 times
[2022-12-13 15:07:52,686 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:07:52,686 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753659773]
[2022-12-13 15:07:52,686 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:07:52,686 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:07:52,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:07:53,592 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 15:07:53,593 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:07:53,593 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753659773]
[2022-12-13 15:07:53,593 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753659773] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:07:53,593 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:07:53,593 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 15:07:53,593 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881676765]
[2022-12-13 15:07:53,593 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:07:53,594 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:07:53,594 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:07:53,595 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:07:53,596 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:07:53,596 INFO  L87              Difference]: Start difference. First operand 27824 states and 32830 transitions. Second operand  has 3 states, 3 states have (on average 571.0) internal successors, (1713), 2 states have internal predecessors, (1713), 0 states have call successors, (0), 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 15:07:57,946 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:07:57,946 INFO  L93              Difference]: Finished difference Result 82853 states and 97692 transitions.
[2022-12-13 15:07:57,947 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:07:57,947 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 571.0) internal successors, (1713), 2 states have internal predecessors, (1713), 0 states have call successors, (0), 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 1713
[2022-12-13 15:07:57,947 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:07:58,001 INFO  L225             Difference]: With dead ends: 82853
[2022-12-13 15:07:58,002 INFO  L226             Difference]: Without dead ends: 55031
[2022-12-13 15:07:58,021 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 15:07:58,022 INFO  L413           NwaCegarLoop]: 1148 mSDtfsCounter, 2010 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 4606 mSolverCounterSat, 1296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2010 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 5902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1296 IncrementalHoareTripleChecker+Valid, 4606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2022-12-13 15:07:58,022 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2010 Valid, 1311 Invalid, 5902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1296 Valid, 4606 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2022-12-13 15:07:58,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55031 states.
[2022-12-13 15:07:58,444 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55031 to 55003.
[2022-12-13 15:07:58,484 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55003 states, 55002 states have (on average 1.1506854296207412) internal successors, (63290), 55002 states have internal predecessors, (63290), 0 states have call successors, (0), 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 15:07:58,535 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55003 states to 55003 states and 63290 transitions.
[2022-12-13 15:07:58,536 INFO  L78                 Accepts]: Start accepts. Automaton has 55003 states and 63290 transitions. Word has length 1713
[2022-12-13 15:07:58,536 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:07:58,536 INFO  L495      AbstractCegarLoop]: Abstraction has 55003 states and 63290 transitions.
[2022-12-13 15:07:58,536 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 571.0) internal successors, (1713), 2 states have internal predecessors, (1713), 0 states have call successors, (0), 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 15:07:58,536 INFO  L276                IsEmpty]: Start isEmpty. Operand 55003 states and 63290 transitions.
[2022-12-13 15:07:58,598 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1721
[2022-12-13 15:07:58,598 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:07:58,599 INFO  L195           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:58,599 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-12-13 15:07:58,599 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:07:58,600 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:07:58,600 INFO  L85        PathProgramCache]: Analyzing trace with hash 1376638156, now seen corresponding path program 1 times
[2022-12-13 15:07:58,600 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:07:58,601 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756657411]
[2022-12-13 15:07:58,601 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:07:58,601 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:07:58,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:07:59,497 INFO  L134       CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-12-13 15:07:59,497 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:07:59,497 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756657411]
[2022-12-13 15:07:59,498 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756657411] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:07:59,498 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:07:59,498 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 15:07:59,498 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732508539]
[2022-12-13 15:07:59,498 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:07:59,499 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:07:59,499 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:07:59,500 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:07:59,501 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:07:59,501 INFO  L87              Difference]: Start difference. First operand 55003 states and 63290 transitions. Second operand  has 3 states, 3 states have (on average 572.0) internal successors, (1716), 2 states have internal predecessors, (1716), 0 states have call successors, (0), 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 15:08:04,037 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:08:04,037 INFO  L93              Difference]: Finished difference Result 137199 states and 157080 transitions.
[2022-12-13 15:08:04,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:08:04,038 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 572.0) internal successors, (1716), 2 states have internal predecessors, (1716), 0 states have call successors, (0), 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 1720
[2022-12-13 15:08:04,038 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:08:04,098 INFO  L225             Difference]: With dead ends: 137199
[2022-12-13 15:08:04,098 INFO  L226             Difference]: Without dead ends: 82198
[2022-12-13 15:08:04,114 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 15:08:04,115 INFO  L413           NwaCegarLoop]: 984 mSDtfsCounter, 2100 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 4509 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 5657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 4509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2022-12-13 15:08:04,115 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 1118 Invalid, 5657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1148 Valid, 4509 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2022-12-13 15:08:04,161 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82198 states.
[2022-12-13 15:08:04,616 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82198 to 82175.
[2022-12-13 15:08:04,661 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82175 states, 82174 states have (on average 1.1007374595370798) internal successors, (90452), 82174 states have internal predecessors, (90452), 0 states have call successors, (0), 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 15:08:04,822 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82175 states to 82175 states and 90452 transitions.
[2022-12-13 15:08:04,822 INFO  L78                 Accepts]: Start accepts. Automaton has 82175 states and 90452 transitions. Word has length 1720
[2022-12-13 15:08:04,823 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:08:04,823 INFO  L495      AbstractCegarLoop]: Abstraction has 82175 states and 90452 transitions.
[2022-12-13 15:08:04,823 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 572.0) internal successors, (1716), 2 states have internal predecessors, (1716), 0 states have call successors, (0), 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 15:08:04,823 INFO  L276                IsEmpty]: Start isEmpty. Operand 82175 states and 90452 transitions.
[2022-12-13 15:08:04,883 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1737
[2022-12-13 15:08:04,883 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:08:04,884 INFO  L195           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-12-13 15:08:04,884 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-12-13 15:08:04,884 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:08:04,884 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:08:04,885 INFO  L85        PathProgramCache]: Analyzing trace with hash -1996185885, now seen corresponding path program 1 times
[2022-12-13 15:08:04,885 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:08:04,885 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868277465]
[2022-12-13 15:08:04,885 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:08:04,885 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:08:05,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:08:05,803 INFO  L134       CoverageAnalysis]: Checked inductivity of 76 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2022-12-13 15:08:05,803 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:08:05,804 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868277465]
[2022-12-13 15:08:05,804 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868277465] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:08:05,804 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:08:05,804 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 15:08:05,804 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176701454]
[2022-12-13 15:08:05,804 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:08:05,805 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:08:05,805 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:08:05,806 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:08:05,806 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:08:05,806 INFO  L87              Difference]: Start difference. First operand 82175 states and 90452 transitions. Second operand  has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 2 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 15:08:10,094 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:08:10,094 INFO  L93              Difference]: Finished difference Result 244149 states and 268721 transitions.
[2022-12-13 15:08:10,095 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:08:10,095 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 2 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 1736
[2022-12-13 15:08:10,095 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:08:10,230 INFO  L225             Difference]: With dead ends: 244149
[2022-12-13 15:08:10,231 INFO  L226             Difference]: Without dead ends: 161976
[2022-12-13 15:08:10,265 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 15:08:10,266 INFO  L413           NwaCegarLoop]: 1053 mSDtfsCounter, 2375 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4636 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 5546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 4636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2022-12-13 15:08:10,266 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 1224 Invalid, 5546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [910 Valid, 4636 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2022-12-13 15:08:10,364 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 161976 states.
[2022-12-13 15:08:11,544 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 161976 to 161971.
[2022-12-13 15:08:11,622 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 161971 states, 161970 states have (on average 1.0756745076248688) internal successors, (174227), 161970 states have internal predecessors, (174227), 0 states have call successors, (0), 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 15:08:11,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 161971 states to 161971 states and 174227 transitions.
[2022-12-13 15:08:11,791 INFO  L78                 Accepts]: Start accepts. Automaton has 161971 states and 174227 transitions. Word has length 1736
[2022-12-13 15:08:11,792 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:08:11,792 INFO  L495      AbstractCegarLoop]: Abstraction has 161971 states and 174227 transitions.
[2022-12-13 15:08:11,792 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 2 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 15:08:11,792 INFO  L276                IsEmpty]: Start isEmpty. Operand 161971 states and 174227 transitions.
[2022-12-13 15:08:12,003 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1773
[2022-12-13 15:08:12,003 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:08:12,004 INFO  L195           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:12,004 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-12-13 15:08:12,004 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:08:12,005 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:08:12,005 INFO  L85        PathProgramCache]: Analyzing trace with hash -1896826430, now seen corresponding path program 1 times
[2022-12-13 15:08:12,005 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:08:12,005 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739758432]
[2022-12-13 15:08:12,005 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:08:12,005 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:08:12,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:08:13,180 INFO  L134       CoverageAnalysis]: Checked inductivity of 118 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-12-13 15:08:13,180 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:08:13,180 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739758432]
[2022-12-13 15:08:13,180 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739758432] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:08:13,181 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:08:13,181 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:08:13,181 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145558742]
[2022-12-13 15:08:13,181 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:08:13,184 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:08:13,184 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:08:13,186 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:08:13,186 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:08:13,187 INFO  L87              Difference]: Start difference. First operand 161971 states and 174227 transitions. Second operand  has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 0 states have call successors, (0), 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 15:08:17,827 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:08:17,827 INFO  L93              Difference]: Finished difference Result 396964 states and 429443 transitions.
[2022-12-13 15:08:17,828 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:08:17,828 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 0 states have call successors, (0), 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 1772
[2022-12-13 15:08:17,828 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:08:18,049 INFO  L225             Difference]: With dead ends: 396964
[2022-12-13 15:08:18,049 INFO  L226             Difference]: Without dead ends: 234995
[2022-12-13 15:08:18,091 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 15:08:18,092 INFO  L413           NwaCegarLoop]: 3097 mSDtfsCounter, 1897 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 4540 mSolverCounterSat, 1126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1897 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 5666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1126 IncrementalHoareTripleChecker+Valid, 4540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2022-12-13 15:08:18,092 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1897 Valid, 3324 Invalid, 5666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1126 Valid, 4540 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2022-12-13 15:08:18,244 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 234995 states.
[2022-12-13 15:08:19,946 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 234995 to 234987.
[2022-12-13 15:08:20,078 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 234987 states, 234986 states have (on average 1.0624718068310453) internal successors, (249666), 234986 states have internal predecessors, (249666), 0 states have call successors, (0), 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 15:08:20,402 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 234987 states to 234987 states and 249666 transitions.
[2022-12-13 15:08:20,402 INFO  L78                 Accepts]: Start accepts. Automaton has 234987 states and 249666 transitions. Word has length 1772
[2022-12-13 15:08:20,403 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:08:20,403 INFO  L495      AbstractCegarLoop]: Abstraction has 234987 states and 249666 transitions.
[2022-12-13 15:08:20,403 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 0 states have call successors, (0), 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 15:08:20,403 INFO  L276                IsEmpty]: Start isEmpty. Operand 234987 states and 249666 transitions.
[2022-12-13 15:08:20,598 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1786
[2022-12-13 15:08:20,598 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:08:20,599 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-12-13 15:08:20,599 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-12-13 15:08:20,599 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:08:20,599 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:08:20,600 INFO  L85        PathProgramCache]: Analyzing trace with hash 581998711, now seen corresponding path program 1 times
[2022-12-13 15:08:20,600 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:08:20,600 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798673923]
[2022-12-13 15:08:20,600 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:08:20,600 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:08:20,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:08:21,719 INFO  L134       CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 15:08:21,719 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:08:21,719 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798673923]
[2022-12-13 15:08:21,719 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798673923] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:08:21,719 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:08:21,719 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 15:08:21,719 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457650587]
[2022-12-13 15:08:21,720 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:08:21,721 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:08:21,721 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:08:21,722 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:08:21,722 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:08:21,722 INFO  L87              Difference]: Start difference. First operand 234987 states and 249666 transitions. Second operand  has 3 states, 3 states have (on average 595.0) internal successors, (1785), 2 states have internal predecessors, (1785), 0 states have call successors, (0), 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 15:08:25,932 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:08:25,932 INFO  L93              Difference]: Finished difference Result 466482 states and 495360 transitions.
[2022-12-13 15:08:25,933 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:08:25,933 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 595.0) internal successors, (1785), 2 states have internal predecessors, (1785), 0 states have call successors, (0), 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 1785
[2022-12-13 15:08:25,933 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:08:26,171 INFO  L225             Difference]: With dead ends: 466482
[2022-12-13 15:08:26,172 INFO  L226             Difference]: Without dead ends: 231497
[2022-12-13 15:08:26,258 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 15:08:26,259 INFO  L413           NwaCegarLoop]: 1054 mSDtfsCounter, 2335 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 4229 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2335 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 5079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 4229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2022-12-13 15:08:26,259 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2335 Valid, 1186 Invalid, 5079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 4229 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2022-12-13 15:08:26,554 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 231497 states.
[2022-12-13 15:08:28,353 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 231497 to 209419.
[2022-12-13 15:08:28,426 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 209419 states, 209418 states have (on average 1.0456503261419745) internal successors, (218978), 209418 states have internal predecessors, (218978), 0 states have call successors, (0), 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 15:08:28,631 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 209419 states to 209419 states and 218978 transitions.
[2022-12-13 15:08:28,631 INFO  L78                 Accepts]: Start accepts. Automaton has 209419 states and 218978 transitions. Word has length 1785
[2022-12-13 15:08:28,631 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:08:28,631 INFO  L495      AbstractCegarLoop]: Abstraction has 209419 states and 218978 transitions.
[2022-12-13 15:08:28,632 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 595.0) internal successors, (1785), 2 states have internal predecessors, (1785), 0 states have call successors, (0), 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 15:08:28,632 INFO  L276                IsEmpty]: Start isEmpty. Operand 209419 states and 218978 transitions.
[2022-12-13 15:08:28,854 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1936
[2022-12-13 15:08:28,854 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:08:28,855 INFO  L195           NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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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[2022-12-13 15:08:28,855 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-12-13 15:08:28,855 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:08:28,855 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:08:28,856 INFO  L85        PathProgramCache]: Analyzing trace with hash -459410248, now seen corresponding path program 1 times
[2022-12-13 15:08:28,856 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:08:28,856 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875061039]
[2022-12-13 15:08:28,856 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:08:28,856 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:08:29,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:08:30,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 445 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2022-12-13 15:08:30,777 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:08:30,777 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875061039]
[2022-12-13 15:08:30,777 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875061039] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:08:30,777 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:08:30,778 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:08:30,778 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266239451]
[2022-12-13 15:08:30,778 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:08:30,779 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:08:30,779 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:08:30,780 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:08:30,780 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:08:30,781 INFO  L87              Difference]: Start difference. First operand 209419 states and 218978 transitions. Second operand  has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 0 states have call successors, (0), 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 15:08:35,901 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:08:35,901 INFO  L93              Difference]: Finished difference Result 497020 states and 520289 transitions.
[2022-12-13 15:08:35,902 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:08:35,902 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 0 states have call successors, (0), 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 1935
[2022-12-13 15:08:35,902 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:08:36,185 INFO  L225             Difference]: With dead ends: 497020
[2022-12-13 15:08:36,185 INFO  L226             Difference]: Without dead ends: 285905
[2022-12-13 15:08:36,256 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 15:08:36,257 INFO  L413           NwaCegarLoop]: 3253 mSDtfsCounter, 1753 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 5103 mSolverCounterSat, 834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 3466 SdHoareTripleChecker+Invalid, 5937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 834 IncrementalHoareTripleChecker+Valid, 5103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2022-12-13 15:08:36,257 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 3466 Invalid, 5937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [834 Valid, 5103 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2022-12-13 15:08:36,459 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 285905 states.
[2022-12-13 15:08:38,267 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 285905 to 282439.
[2022-12-13 15:08:38,404 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 282439 states, 282438 states have (on average 1.0380472882544134) internal successors, (293184), 282438 states have internal predecessors, (293184), 0 states have call successors, (0), 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 15:08:38,689 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 282439 states to 282439 states and 293184 transitions.
[2022-12-13 15:08:38,689 INFO  L78                 Accepts]: Start accepts. Automaton has 282439 states and 293184 transitions. Word has length 1935
[2022-12-13 15:08:38,690 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:08:38,690 INFO  L495      AbstractCegarLoop]: Abstraction has 282439 states and 293184 transitions.
[2022-12-13 15:08:38,690 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 0 states have call successors, (0), 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 15:08:38,690 INFO  L276                IsEmpty]: Start isEmpty. Operand 282439 states and 293184 transitions.
[2022-12-13 15:08:39,048 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2116
[2022-12-13 15:08:39,048 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:08:39,049 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:39,049 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-12-13 15:08:39,049 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:08:39,049 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:08:39,050 INFO  L85        PathProgramCache]: Analyzing trace with hash 697335011, now seen corresponding path program 1 times
[2022-12-13 15:08:39,050 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:08:39,050 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803671455]
[2022-12-13 15:08:39,050 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:08:39,050 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:08:39,232 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:08:40,715 INFO  L134       CoverageAnalysis]: Checked inductivity of 797 backedges. 586 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked.
[2022-12-13 15:08:40,715 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:08:40,715 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803671455]
[2022-12-13 15:08:40,715 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803671455] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:08:40,715 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:08:40,715 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:08:40,716 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280331114]
[2022-12-13 15:08:40,716 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:08:40,719 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:08:40,719 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:08:40,720 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:08:40,720 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:08:40,721 INFO  L87              Difference]: Start difference. First operand 282439 states and 293184 transitions. Second operand  has 3 states, 3 states have (on average 647.3333333333334) internal successors, (1942), 3 states have internal predecessors, (1942), 0 states have call successors, (0), 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 15:08:46,895 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:08:46,895 INFO  L93              Difference]: Finished difference Result 654862 states and 680410 transitions.
[2022-12-13 15:08:46,896 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:08:46,896 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 647.3333333333334) internal successors, (1942), 3 states have internal predecessors, (1942), 0 states have call successors, (0), 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 2115
[2022-12-13 15:08:46,896 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:08:47,246 INFO  L225             Difference]: With dead ends: 654862
[2022-12-13 15:08:47,247 INFO  L226             Difference]: Without dead ends: 372425
[2022-12-13 15:08:47,436 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 15:08:47,436 INFO  L413           NwaCegarLoop]: 3051 mSDtfsCounter, 1896 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 4261 mSolverCounterSat, 1182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 5443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1182 IncrementalHoareTripleChecker+Valid, 4261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2022-12-13 15:08:47,437 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 3415 Invalid, 5443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1182 Valid, 4261 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2022-12-13 15:08:47,699 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 372425 states.
[2022-12-13 15:08:50,155 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 372425 to 331671.
[2022-12-13 15:08:50,274 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 331671 states, 331670 states have (on average 1.030376579129858) internal successors, (341745), 331670 states have internal predecessors, (341745), 0 states have call successors, (0), 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 15:08:50,802 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 331671 states to 331671 states and 341745 transitions.
[2022-12-13 15:08:50,803 INFO  L78                 Accepts]: Start accepts. Automaton has 331671 states and 341745 transitions. Word has length 2115
[2022-12-13 15:08:50,803 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:08:50,803 INFO  L495      AbstractCegarLoop]: Abstraction has 331671 states and 341745 transitions.
[2022-12-13 15:08:50,804 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 647.3333333333334) internal successors, (1942), 3 states have internal predecessors, (1942), 0 states have call successors, (0), 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 15:08:50,804 INFO  L276                IsEmpty]: Start isEmpty. Operand 331671 states and 341745 transitions.
[2022-12-13 15:08:51,105 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2229
[2022-12-13 15:08:51,106 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:08:51,107 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 15:08:51,107 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-12-13 15:08:51,107 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:08:51,107 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:08:51,108 INFO  L85        PathProgramCache]: Analyzing trace with hash 783376801, now seen corresponding path program 1 times
[2022-12-13 15:08:51,108 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:08:51,108 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354783628]
[2022-12-13 15:08:51,108 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:08:51,108 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:08:51,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:08:53,190 INFO  L134       CoverageAnalysis]: Checked inductivity of 546 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 15:08:53,190 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:08:53,191 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354783628]
[2022-12-13 15:08:53,191 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354783628] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:08:53,191 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:08:53,191 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 15:08:53,192 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573516739]
[2022-12-13 15:08:53,192 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:08:53,194 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:08:53,194 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:08:53,196 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:08:53,197 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:08:53,197 INFO  L87              Difference]: Start difference. First operand 331671 states and 341745 transitions. Second operand  has 3 states, 3 states have (on average 742.6666666666666) internal successors, (2228), 2 states have internal predecessors, (2228), 0 states have call successors, (0), 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 15:08:58,865 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:08:58,866 INFO  L93              Difference]: Finished difference Result 726170 states and 748796 transitions.
[2022-12-13 15:08:58,866 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:08:58,866 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 742.6666666666666) internal successors, (2228), 2 states have internal predecessors, (2228), 0 states have call successors, (0), 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 2228
[2022-12-13 15:08:58,867 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:08:59,392 INFO  L225             Difference]: With dead ends: 726170
[2022-12-13 15:08:59,392 INFO  L226             Difference]: Without dead ends: 389399
[2022-12-13 15:08:59,500 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 15:08:59,501 INFO  L413           NwaCegarLoop]: 1246 mSDtfsCounter, 1537 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4244 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 5089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 4244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2022-12-13 15:08:59,501 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 1417 Invalid, 5089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 4244 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2022-12-13 15:08:59,805 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 389399 states.
[2022-12-13 15:09:02,672 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 389399 to 328263.
[2022-12-13 15:09:02,799 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 328263 states, 328262 states have (on average 1.0298938043392167) internal successors, (338075), 328262 states have internal predecessors, (338075), 0 states have call successors, (0), 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 15:09:03,296 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 328263 states to 328263 states and 338075 transitions.
[2022-12-13 15:09:03,297 INFO  L78                 Accepts]: Start accepts. Automaton has 328263 states and 338075 transitions. Word has length 2228
[2022-12-13 15:09:03,297 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:09:03,297 INFO  L495      AbstractCegarLoop]: Abstraction has 328263 states and 338075 transitions.
[2022-12-13 15:09:03,298 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 742.6666666666666) internal successors, (2228), 2 states have internal predecessors, (2228), 0 states have call successors, (0), 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 15:09:03,298 INFO  L276                IsEmpty]: Start isEmpty. Operand 328263 states and 338075 transitions.
[2022-12-13 15:09:03,501 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2247
[2022-12-13 15:09:03,501 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:09:03,502 INFO  L195           NwaCegarLoop]: trace histogram [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, 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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 15:09:03,502 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2022-12-13 15:09:03,502 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:09:03,502 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:09:03,503 INFO  L85        PathProgramCache]: Analyzing trace with hash -1485329165, now seen corresponding path program 1 times
[2022-12-13 15:09:03,503 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:09:03,503 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889118799]
[2022-12-13 15:09:03,503 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:09:03,503 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:09:03,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:09:05,679 INFO  L134       CoverageAnalysis]: Checked inductivity of 581 backedges. 581 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 15:09:05,679 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:09:05,679 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889118799]
[2022-12-13 15:09:05,679 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889118799] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:09:05,679 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:09:05,680 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:09:05,680 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534276175]
[2022-12-13 15:09:05,680 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:09:05,682 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 15:09:05,682 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:09:05,683 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 15:09:05,684 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 15:09:05,684 INFO  L87              Difference]: Start difference. First operand 328263 states and 338075 transitions. Second operand  has 4 states, 4 states have (on average 561.5) internal successors, (2246), 3 states have internal predecessors, (2246), 0 states have call successors, (0), 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 15:09:12,980 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:09:12,980 INFO  L93              Difference]: Finished difference Result 710859 states and 732122 transitions.
[2022-12-13 15:09:12,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 15:09:12,981 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 561.5) internal successors, (2246), 3 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2246
[2022-12-13 15:09:12,981 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:09:13,369 INFO  L225             Difference]: With dead ends: 710859
[2022-12-13 15:09:13,370 INFO  L226             Difference]: Without dead ends: 377495
[2022-12-13 15:09:13,480 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 15:09:13,481 INFO  L413           NwaCegarLoop]: 991 mSDtfsCounter, 3507 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 8576 mSolverCounterSat, 1206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3507 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 9782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1206 IncrementalHoareTripleChecker+Valid, 8576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2022-12-13 15:09:13,481 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3507 Valid, 1265 Invalid, 9782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1206 Valid, 8576 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2022-12-13 15:09:13,792 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 377495 states.
[2022-12-13 15:09:16,405 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 377495 to 307872.
[2022-12-13 15:09:16,566 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 307872 states, 307871 states have (on average 1.024623949641246) internal successors, (315452), 307871 states have internal predecessors, (315452), 0 states have call successors, (0), 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 15:09:17,028 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 307872 states to 307872 states and 315452 transitions.
[2022-12-13 15:09:17,028 INFO  L78                 Accepts]: Start accepts. Automaton has 307872 states and 315452 transitions. Word has length 2246
[2022-12-13 15:09:17,028 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:09:17,028 INFO  L495      AbstractCegarLoop]: Abstraction has 307872 states and 315452 transitions.
[2022-12-13 15:09:17,029 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 561.5) internal successors, (2246), 3 states have internal predecessors, (2246), 0 states have call successors, (0), 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 15:09:17,029 INFO  L276                IsEmpty]: Start isEmpty. Operand 307872 states and 315452 transitions.
[2022-12-13 15:09:17,399 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2390
[2022-12-13 15:09:17,399 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:09:17,400 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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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 15:09:17,400 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2022-12-13 15:09:17,401 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:09:17,401 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:09:17,401 INFO  L85        PathProgramCache]: Analyzing trace with hash -702203988, now seen corresponding path program 1 times
[2022-12-13 15:09:17,401 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:09:17,401 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058173106]
[2022-12-13 15:09:17,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:09:17,402 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:09:17,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:09:19,184 INFO  L134       CoverageAnalysis]: Checked inductivity of 945 backedges. 945 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 15:09:19,184 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:09:19,184 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058173106]
[2022-12-13 15:09:19,184 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058173106] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:09:19,184 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:09:19,185 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:09:19,185 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690480326]
[2022-12-13 15:09:19,185 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:09:19,187 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:09:19,188 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:09:19,189 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:09:19,189 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:09:19,189 INFO  L87              Difference]: Start difference. First operand 307872 states and 315452 transitions. Second operand  has 3 states, 3 states have (on average 796.3333333333334) internal successors, (2389), 3 states have internal predecessors, (2389), 0 states have call successors, (0), 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 15:09:24,475 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:09:24,475 INFO  L93              Difference]: Finished difference Result 699016 states and 716828 transitions.
[2022-12-13 15:09:24,475 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:09:24,476 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 796.3333333333334) internal successors, (2389), 3 states have internal predecessors, (2389), 0 states have call successors, (0), 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 2389
[2022-12-13 15:09:24,476 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:09:24,876 INFO  L225             Difference]: With dead ends: 699016
[2022-12-13 15:09:24,876 INFO  L226             Difference]: Without dead ends: 387734
[2022-12-13 15:09:24,994 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 15:09:24,994 INFO  L413           NwaCegarLoop]: 3021 mSDtfsCounter, 1651 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 4837 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 5754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 4837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2022-12-13 15:09:24,994 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 3219 Invalid, 5754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 4837 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2022-12-13 15:09:25,394 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 387734 states.
[2022-12-13 15:09:28,038 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 387734 to 365592.
[2022-12-13 15:09:28,221 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 365592 states, 365591 states have (on average 1.0207882579166336) internal successors, (373191), 365591 states have internal predecessors, (373191), 0 states have call successors, (0), 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 15:09:28,727 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 365592 states to 365592 states and 373191 transitions.
[2022-12-13 15:09:28,727 INFO  L78                 Accepts]: Start accepts. Automaton has 365592 states and 373191 transitions. Word has length 2389
[2022-12-13 15:09:28,727 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:09:28,728 INFO  L495      AbstractCegarLoop]: Abstraction has 365592 states and 373191 transitions.
[2022-12-13 15:09:28,728 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 796.3333333333334) internal successors, (2389), 3 states have internal predecessors, (2389), 0 states have call successors, (0), 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 15:09:28,728 INFO  L276                IsEmpty]: Start isEmpty. Operand 365592 states and 373191 transitions.
[2022-12-13 15:09:29,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2472
[2022-12-13 15:09:29,119 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:09:29,120 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-12-13 15:09:29,120 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2022-12-13 15:09:29,120 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:09:29,121 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:09:29,121 INFO  L85        PathProgramCache]: Analyzing trace with hash -255537099, now seen corresponding path program 1 times
[2022-12-13 15:09:29,121 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:09:29,121 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072122029]
[2022-12-13 15:09:29,121 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:09:29,122 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:09:29,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:09:30,712 INFO  L134       CoverageAnalysis]: Checked inductivity of 1777 backedges. 856 proven. 0 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked.
[2022-12-13 15:09:30,712 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:09:30,712 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072122029]
[2022-12-13 15:09:30,712 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072122029] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:09:30,712 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:09:30,713 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:09:30,713 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066264032]
[2022-12-13 15:09:30,713 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:09:30,716 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:09:30,716 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:09:30,718 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:09:30,718 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:09:30,718 INFO  L87              Difference]: Start difference. First operand 365592 states and 373191 transitions. Second operand  has 3 states, 3 states have (on average 652.6666666666666) internal successors, (1958), 3 states have internal predecessors, (1958), 0 states have call successors, (0), 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 15:09:36,374 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:09:36,374 INFO  L93              Difference]: Finished difference Result 807657 states and 824265 transitions.
[2022-12-13 15:09:36,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:09:36,375 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 652.6666666666666) internal successors, (1958), 3 states have internal predecessors, (1958), 0 states have call successors, (0), 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 2471
[2022-12-13 15:09:36,375 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:09:36,880 INFO  L225             Difference]: With dead ends: 807657
[2022-12-13 15:09:36,880 INFO  L226             Difference]: Without dead ends: 440354
[2022-12-13 15:09:37,024 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 15:09:37,025 INFO  L413           NwaCegarLoop]: 3046 mSDtfsCounter, 1570 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 4899 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 5306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 4899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2022-12-13 15:09:37,025 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 3258 Invalid, 5306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 4899 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2022-12-13 15:09:37,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 440354 states.
[2022-12-13 15:09:40,714 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 440354 to 423312.
[2022-12-13 15:09:40,852 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 423312 states, 423311 states have (on average 1.019548275381457) internal successors, (431586), 423311 states have internal predecessors, (431586), 0 states have call successors, (0), 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 15:09:41,446 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 423312 states to 423312 states and 431586 transitions.
[2022-12-13 15:09:41,447 INFO  L78                 Accepts]: Start accepts. Automaton has 423312 states and 431586 transitions. Word has length 2471
[2022-12-13 15:09:41,447 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:09:41,447 INFO  L495      AbstractCegarLoop]: Abstraction has 423312 states and 431586 transitions.
[2022-12-13 15:09:41,448 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 652.6666666666666) internal successors, (1958), 3 states have internal predecessors, (1958), 0 states have call successors, (0), 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 15:09:41,448 INFO  L276                IsEmpty]: Start isEmpty. Operand 423312 states and 431586 transitions.
[2022-12-13 15:09:41,702 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2567
[2022-12-13 15:09:41,702 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:09:41,703 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-12-13 15:09:41,703 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2022-12-13 15:09:41,703 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:09:41,703 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:09:41,703 INFO  L85        PathProgramCache]: Analyzing trace with hash 2078408412, now seen corresponding path program 1 times
[2022-12-13 15:09:41,704 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:09:41,704 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561637480]
[2022-12-13 15:09:41,704 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:09:41,704 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:09:41,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:09:43,594 INFO  L134       CoverageAnalysis]: Checked inductivity of 1953 backedges. 1315 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked.
[2022-12-13 15:09:43,594 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:09:43,594 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561637480]
[2022-12-13 15:09:43,594 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561637480] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:09:43,594 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:09:43,595 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:09:43,595 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661670888]
[2022-12-13 15:09:43,595 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:09:43,596 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:09:43,597 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:09:43,598 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:09:43,598 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:09:43,599 INFO  L87              Difference]: Start difference. First operand 423312 states and 431586 transitions. Second operand  has 3 states, 3 states have (on average 708.0) internal successors, (2124), 3 states have internal predecessors, (2124), 0 states have call successors, (0), 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 15:09:49,124 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:09:49,124 INFO  L93              Difference]: Finished difference Result 851712 states and 868002 transitions.
[2022-12-13 15:09:49,124 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:09:49,125 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 708.0) internal successors, (2124), 3 states have internal predecessors, (2124), 0 states have call successors, (0), 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 2566
[2022-12-13 15:09:49,125 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:09:49,750 INFO  L225             Difference]: With dead ends: 851712
[2022-12-13 15:09:49,750 INFO  L226             Difference]: Without dead ends: 419883
[2022-12-13 15:09:49,854 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 15:09:49,855 INFO  L413           NwaCegarLoop]: 2490 mSDtfsCounter, 1906 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4351 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1906 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 5142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 4351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2022-12-13 15:09:49,855 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1906 Valid, 2585 Invalid, 5142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 4351 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2022-12-13 15:09:50,155 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 419883 states.
[2022-12-13 15:09:53,260 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 419883 to 409688.
[2022-12-13 15:09:53,414 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 409688 states, 409687 states have (on average 1.0152628714115899) internal successors, (415940), 409687 states have internal predecessors, (415940), 0 states have call successors, (0), 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 15:09:53,991 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 409688 states to 409688 states and 415940 transitions.
[2022-12-13 15:09:53,991 INFO  L78                 Accepts]: Start accepts. Automaton has 409688 states and 415940 transitions. Word has length 2566
[2022-12-13 15:09:53,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:09:53,992 INFO  L495      AbstractCegarLoop]: Abstraction has 409688 states and 415940 transitions.
[2022-12-13 15:09:53,992 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 708.0) internal successors, (2124), 3 states have internal predecessors, (2124), 0 states have call successors, (0), 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 15:09:53,992 INFO  L276                IsEmpty]: Start isEmpty. Operand 409688 states and 415940 transitions.
[2022-12-13 15:09:54,215 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2593
[2022-12-13 15:09:54,215 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:09:54,216 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, 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, 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, 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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]
[2022-12-13 15:09:54,217 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2022-12-13 15:09:54,217 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:09:54,217 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:09:54,217 INFO  L85        PathProgramCache]: Analyzing trace with hash 1998838304, now seen corresponding path program 1 times
[2022-12-13 15:09:54,217 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:09:54,218 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40737640]
[2022-12-13 15:09:54,218 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:09:54,218 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:09:54,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:09:56,824 INFO  L134       CoverageAnalysis]: Checked inductivity of 1898 backedges. 1278 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked.
[2022-12-13 15:09:56,824 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:09:56,824 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40737640]
[2022-12-13 15:09:56,825 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40737640] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:09:56,825 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:09:56,825 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:09:56,825 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430338606]
[2022-12-13 15:09:56,825 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:09:56,826 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:09:56,826 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:09:56,827 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:09:56,827 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:09:56,827 INFO  L87              Difference]: Start difference. First operand 409688 states and 415940 transitions. Second operand  has 3 states, 3 states have (on average 722.6666666666666) internal successors, (2168), 3 states have internal predecessors, (2168), 0 states have call successors, (0), 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 15:10:02,375 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:10:02,375 INFO  L93              Difference]: Finished difference Result 836398 states and 848992 transitions.
[2022-12-13 15:10:02,375 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:10:02,376 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 722.6666666666666) internal successors, (2168), 3 states have internal predecessors, (2168), 0 states have call successors, (0), 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 2592
[2022-12-13 15:10:02,376 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:10:02,866 INFO  L225             Difference]: With dead ends: 836398
[2022-12-13 15:10:02,866 INFO  L226             Difference]: Without dead ends: 426712
[2022-12-13 15:10:03,002 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 15:10:03,003 INFO  L413           NwaCegarLoop]: 1268 mSDtfsCounter, 1714 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 4757 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 5109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 4757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2022-12-13 15:10:03,003 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 1450 Invalid, 5109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 4757 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2022-12-13 15:10:03,351 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 426712 states.
[2022-12-13 15:10:06,702 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 426712 to 404589.
[2022-12-13 15:10:06,886 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 404589 states, 404588 states have (on average 1.0139697667750898) internal successors, (410240), 404588 states have internal predecessors, (410240), 0 states have call successors, (0), 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 15:10:07,439 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 404589 states to 404589 states and 410240 transitions.
[2022-12-13 15:10:07,439 INFO  L78                 Accepts]: Start accepts. Automaton has 404589 states and 410240 transitions. Word has length 2592
[2022-12-13 15:10:07,440 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:10:07,440 INFO  L495      AbstractCegarLoop]: Abstraction has 404589 states and 410240 transitions.
[2022-12-13 15:10:07,440 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 722.6666666666666) internal successors, (2168), 3 states have internal predecessors, (2168), 0 states have call successors, (0), 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 15:10:07,440 INFO  L276                IsEmpty]: Start isEmpty. Operand 404589 states and 410240 transitions.
[2022-12-13 15:10:07,653 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2634
[2022-12-13 15:10:07,653 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:10:07,654 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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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 15:10:07,654 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2022-12-13 15:10:07,654 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:10:07,654 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:10:07,655 INFO  L85        PathProgramCache]: Analyzing trace with hash -783982017, now seen corresponding path program 1 times
[2022-12-13 15:10:07,655 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:10:07,655 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75236097]
[2022-12-13 15:10:07,655 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:10:07,655 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:10:08,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:10:09,888 INFO  L134       CoverageAnalysis]: Checked inductivity of 1975 backedges. 1566 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked.
[2022-12-13 15:10:09,888 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:10:09,888 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75236097]
[2022-12-13 15:10:09,889 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75236097] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:10:09,889 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:10:09,889 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:10:09,889 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003928442]
[2022-12-13 15:10:09,889 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:10:09,890 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:10:09,890 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:10:09,891 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:10:09,891 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:10:09,892 INFO  L87              Difference]: Start difference. First operand 404589 states and 410240 transitions. Second operand  has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 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 15:10:15,904 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:10:15,904 INFO  L93              Difference]: Finished difference Result 878797 states and 890983 transitions.
[2022-12-13 15:10:15,905 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:10:15,905 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 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 2633
[2022-12-13 15:10:15,905 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:10:16,436 INFO  L225             Difference]: With dead ends: 878797
[2022-12-13 15:10:16,436 INFO  L226             Difference]: Without dead ends: 472497
[2022-12-13 15:10:16,574 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 15:10:16,574 INFO  L413           NwaCegarLoop]: 2886 mSDtfsCounter, 1619 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 4464 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 4975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 4464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2022-12-13 15:10:16,574 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 3094 Invalid, 4975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 4464 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2022-12-13 15:10:16,980 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 472497 states.
[2022-12-13 15:10:20,652 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 472497 to 465696.
[2022-12-13 15:10:20,765 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 465696 states, 465695 states have (on average 1.0114495538925692) internal successors, (471027), 465695 states have internal predecessors, (471027), 0 states have call successors, (0), 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 15:10:21,235 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 465696 states to 465696 states and 471027 transitions.
[2022-12-13 15:10:21,235 INFO  L78                 Accepts]: Start accepts. Automaton has 465696 states and 471027 transitions. Word has length 2633
[2022-12-13 15:10:21,236 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:10:21,236 INFO  L495      AbstractCegarLoop]: Abstraction has 465696 states and 471027 transitions.
[2022-12-13 15:10:21,236 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 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 15:10:21,236 INFO  L276                IsEmpty]: Start isEmpty. Operand 465696 states and 471027 transitions.
[2022-12-13 15:10:21,691 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2721
[2022-12-13 15:10:21,691 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:10:21,692 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 15:10:21,692 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2022-12-13 15:10:21,692 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:10:21,693 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:10:21,693 INFO  L85        PathProgramCache]: Analyzing trace with hash 1615147596, now seen corresponding path program 1 times
[2022-12-13 15:10:21,693 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:10:21,693 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149648596]
[2022-12-13 15:10:21,693 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:10:21,693 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:10:21,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:10:23,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 2536 backedges. 1610 proven. 0 refuted. 0 times theorem prover too weak. 926 trivial. 0 not checked.
[2022-12-13 15:10:23,612 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:10:23,612 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149648596]
[2022-12-13 15:10:23,612 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149648596] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:10:23,613 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:10:23,613 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:10:23,613 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150668561]
[2022-12-13 15:10:23,614 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:10:23,616 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:10:23,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:10:23,619 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:10:23,619 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:10:23,619 INFO  L87              Difference]: Start difference. First operand 465696 states and 471027 transitions. Second operand  has 3 states, 3 states have (on average 727.6666666666666) internal successors, (2183), 3 states have internal predecessors, (2183), 0 states have call successors, (0), 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 15:10:29,256 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:10:29,256 INFO  L93              Difference]: Finished difference Result 933082 states and 943745 transitions.
[2022-12-13 15:10:29,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:10:29,257 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 727.6666666666666) internal successors, (2183), 3 states have internal predecessors, (2183), 0 states have call successors, (0), 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 2720
[2022-12-13 15:10:29,257 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:10:29,765 INFO  L225             Difference]: With dead ends: 933082
[2022-12-13 15:10:29,765 INFO  L226             Difference]: Without dead ends: 465677
[2022-12-13 15:10:30,108 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 15:10:30,109 INFO  L413           NwaCegarLoop]: 688 mSDtfsCounter, 1751 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4332 mSolverCounterSat, 604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 4936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 604 IncrementalHoareTripleChecker+Valid, 4332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2022-12-13 15:10:30,109 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1751 Valid, 814 Invalid, 4936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [604 Valid, 4332 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2022-12-13 15:10:30,437 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 465677 states.
[2022-12-13 15:10:33,848 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 465677 to 460576.
[2022-12-13 15:10:33,978 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 460576 states, 460575 states have (on average 1.0091516039732942) internal successors, (464790), 460575 states have internal predecessors, (464790), 0 states have call successors, (0), 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 15:10:34,475 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 460576 states to 460576 states and 464790 transitions.
[2022-12-13 15:10:34,475 INFO  L78                 Accepts]: Start accepts. Automaton has 460576 states and 464790 transitions. Word has length 2720
[2022-12-13 15:10:34,476 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:10:34,476 INFO  L495      AbstractCegarLoop]: Abstraction has 460576 states and 464790 transitions.
[2022-12-13 15:10:34,476 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 727.6666666666666) internal successors, (2183), 3 states have internal predecessors, (2183), 0 states have call successors, (0), 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 15:10:34,476 INFO  L276                IsEmpty]: Start isEmpty. Operand 460576 states and 464790 transitions.
[2022-12-13 15:10:35,053 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3130
[2022-12-13 15:10:35,053 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:10:35,054 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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[2022-12-13 15:10:35,054 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2022-12-13 15:10:35,054 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:10:35,055 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:10:35,055 INFO  L85        PathProgramCache]: Analyzing trace with hash -2019984538, now seen corresponding path program 1 times
[2022-12-13 15:10:35,055 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:10:35,056 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560598437]
[2022-12-13 15:10:35,056 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:10:35,056 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:10:35,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:10:41,055 INFO  L134       CoverageAnalysis]: Checked inductivity of 4344 backedges. 3131 proven. 0 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked.
[2022-12-13 15:10:41,055 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:10:41,056 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560598437]
[2022-12-13 15:10:41,056 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560598437] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:10:41,056 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:10:41,056 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:10:41,056 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508709356]
[2022-12-13 15:10:41,056 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:10:41,057 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:10:41,057 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:10:41,058 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:10:41,059 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:10:41,059 INFO  L87              Difference]: Start difference. First operand 460576 states and 464790 transitions. Second operand  has 3 states, 3 states have (on average 761.6666666666666) internal successors, (2285), 3 states have internal predecessors, (2285), 0 states have call successors, (0), 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 15:10:46,187 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:10:46,187 INFO  L93              Difference]: Finished difference Result 922846 states and 931244 transitions.
[2022-12-13 15:10:46,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:10:46,187 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 761.6666666666666) internal successors, (2285), 3 states have internal predecessors, (2285), 0 states have call successors, (0), 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 3129
[2022-12-13 15:10:46,188 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:10:46,713 INFO  L225             Difference]: With dead ends: 922846
[2022-12-13 15:10:46,713 INFO  L226             Difference]: Without dead ends: 458850
[2022-12-13 15:10:46,899 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 15:10:46,900 INFO  L413           NwaCegarLoop]: 2266 mSDtfsCounter, 1870 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 4284 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 4964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 4284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2022-12-13 15:10:46,900 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 2329 Invalid, 4964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 4284 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2022-12-13 15:10:47,289 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 458850 states.
[2022-12-13 15:10:51,222 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 458850 to 448652.
[2022-12-13 15:10:51,331 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 448652 states, 448651 states have (on average 1.0078123084535642) internal successors, (452156), 448651 states have internal predecessors, (452156), 0 states have call successors, (0), 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 15:10:51,733 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 448652 states to 448652 states and 452156 transitions.
[2022-12-13 15:10:51,733 INFO  L78                 Accepts]: Start accepts. Automaton has 448652 states and 452156 transitions. Word has length 3129
[2022-12-13 15:10:51,734 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:10:51,734 INFO  L495      AbstractCegarLoop]: Abstraction has 448652 states and 452156 transitions.
[2022-12-13 15:10:51,734 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 761.6666666666666) internal successors, (2285), 3 states have internal predecessors, (2285), 0 states have call successors, (0), 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 15:10:51,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 448652 states and 452156 transitions.
[2022-12-13 15:10:52,198 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3221
[2022-12-13 15:10:52,199 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:10:52,199 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-12-13 15:10:52,200 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2022-12-13 15:10:52,200 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:10:52,200 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:10:52,200 INFO  L85        PathProgramCache]: Analyzing trace with hash 647817647, now seen corresponding path program 1 times
[2022-12-13 15:10:52,200 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:10:52,201 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944429870]
[2022-12-13 15:10:52,201 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:10:52,201 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:10:52,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:10:54,940 INFO  L134       CoverageAnalysis]: Checked inductivity of 3770 backedges. 1871 proven. 0 refuted. 0 times theorem prover too weak. 1899 trivial. 0 not checked.
[2022-12-13 15:10:54,940 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:10:54,940 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944429870]
[2022-12-13 15:10:54,940 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944429870] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:10:54,940 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:10:54,941 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:10:54,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855770412]
[2022-12-13 15:10:54,941 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:10:54,942 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:10:54,942 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:10:54,943 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:10:54,943 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:10:54,943 INFO  L87              Difference]: Start difference. First operand 448652 states and 452156 transitions. Second operand  has 3 states, 3 states have (on average 720.6666666666666) internal successors, (2162), 3 states have internal predecessors, (2162), 0 states have call successors, (0), 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 15:11:00,109 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:11:00,109 INFO  L93              Difference]: Finished difference Result 897304 states and 904308 transitions.
[2022-12-13 15:11:00,110 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:11:00,110 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 720.6666666666666) internal successors, (2162), 3 states have internal predecessors, (2162), 0 states have call successors, (0), 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 3220
[2022-12-13 15:11:00,110 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:11:00,616 INFO  L225             Difference]: With dead ends: 897304
[2022-12-13 15:11:00,616 INFO  L226             Difference]: Without dead ends: 448654
[2022-12-13 15:11:00,765 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 15:11:00,765 INFO  L413           NwaCegarLoop]: 2696 mSDtfsCounter, 1417 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 4334 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 4596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 4334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2022-12-13 15:11:00,765 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 2874 Invalid, 4596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 4334 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2022-12-13 15:11:01,135 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 448654 states.
[2022-12-13 15:11:04,526 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 448654 to 436754.
[2022-12-13 15:11:04,721 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 436754 states, 436753 states have (on average 1.0071962871462818) internal successors, (439896), 436753 states have internal predecessors, (439896), 0 states have call successors, (0), 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 15:11:05,315 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 436754 states to 436754 states and 439896 transitions.
[2022-12-13 15:11:05,315 INFO  L78                 Accepts]: Start accepts. Automaton has 436754 states and 439896 transitions. Word has length 3220
[2022-12-13 15:11:05,316 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 15:11:05,316 INFO  L495      AbstractCegarLoop]: Abstraction has 436754 states and 439896 transitions.
[2022-12-13 15:11:05,316 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 720.6666666666666) internal successors, (2162), 3 states have internal predecessors, (2162), 0 states have call successors, (0), 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 15:11:05,317 INFO  L276                IsEmpty]: Start isEmpty. Operand 436754 states and 439896 transitions.
[2022-12-13 15:11:05,553 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3227
[2022-12-13 15:11:05,553 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 15:11:05,554 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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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 15:11:05,554 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2022-12-13 15:11:05,554 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 15:11:05,555 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 15:11:05,555 INFO  L85        PathProgramCache]: Analyzing trace with hash 96395216, now seen corresponding path program 1 times
[2022-12-13 15:11:05,555 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 15:11:05,555 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968654139]
[2022-12-13 15:11:05,555 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 15:11:05,556 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 15:11:06,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 15:11:08,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 3890 backedges. 2613 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked.
[2022-12-13 15:11:08,163 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 15:11:08,163 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968654139]
[2022-12-13 15:11:08,163 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968654139] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 15:11:08,164 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 15:11:08,164 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 15:11:08,164 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729522056]
[2022-12-13 15:11:08,164 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 15:11:08,165 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 15:11:08,166 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 15:11:08,167 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 15:11:08,167 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 15:11:08,167 INFO  L87              Difference]: Start difference. First operand 436754 states and 439896 transitions. Second operand  has 3 states, 3 states have (on average 733.3333333333334) internal successors, (2200), 3 states have internal predecessors, (2200), 0 states have call successors, (0), 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 15:11:13,576 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 15:11:13,576 INFO  L93              Difference]: Finished difference Result 856502 states and 862609 transitions.
[2022-12-13 15:11:13,576 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 15:11:13,576 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 733.3333333333334) internal successors, (2200), 3 states have internal predecessors, (2200), 0 states have call successors, (0), 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 3226
[2022-12-13 15:11:13,577 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 15:11:14,062 INFO  L225             Difference]: With dead ends: 856502
[2022-12-13 15:11:14,062 INFO  L226             Difference]: Without dead ends: 418052
[2022-12-13 15:11:14,201 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 15:11:14,202 INFO  L413           NwaCegarLoop]: 2581 mSDtfsCounter, 1651 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 4402 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 4882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 4402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2022-12-13 15:11:14,202 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 2711 Invalid, 4882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 4402 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2022-12-13 15:11:14,497 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 418052 states.