./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem05_label56.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version e04fb08f
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_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem05_label56.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8 --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 c05e0afe400610a03af7f85bf1fa08609bbde642205244db1c80922af0f91249
--- 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-e04fb08
[2022-11-16 12:29:52,316 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-16 12:29:52,319 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-16 12:29:52,353 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-16 12:29:52,353 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-16 12:29:52,358 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-16 12:29:52,362 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-16 12:29:52,367 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-16 12:29:52,369 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-16 12:29:52,378 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-16 12:29:52,380 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-16 12:29:52,382 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-16 12:29:52,383 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-16 12:29:52,387 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-16 12:29:52,389 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-16 12:29:52,391 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-16 12:29:52,394 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-16 12:29:52,395 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-16 12:29:52,397 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-16 12:29:52,406 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-16 12:29:52,408 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-16 12:29:52,410 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-16 12:29:52,413 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-16 12:29:52,414 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-16 12:29:52,418 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-16 12:29:52,419 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-16 12:29:52,419 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-16 12:29:52,421 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-16 12:29:52,422 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-16 12:29:52,423 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-16 12:29:52,425 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-16 12:29:52,426 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-16 12:29:52,428 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-16 12:29:52,430 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-16 12:29:52,431 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-16 12:29:52,432 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-16 12:29:52,433 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-16 12:29:52,433 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-16 12:29:52,433 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-16 12:29:52,434 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-16 12:29:52,435 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-16 12:29:52,437 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-16 12:29:52,487 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-16 12:29:52,487 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-16 12:29:52,488 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-16 12:29:52,488 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-16 12:29:52,489 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-16 12:29:52,490 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-16 12:29:52,491 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-16 12:29:52,491 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-16 12:29:52,491 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-11-16 12:29:52,492 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-16 12:29:52,493 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-11-16 12:29:52,493 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-16 12:29:52,493 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-11-16 12:29:52,494 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-16 12:29:52,494 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-16 12:29:52,494 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-16 12:29:52,494 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-16 12:29:52,495 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-11-16 12:29:52,495 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-16 12:29:52,495 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-16 12:29:52,496 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-16 12:29:52,496 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-16 12:29:52,496 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-16 12:29:52,496 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-16 12:29:52,497 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-16 12:29:52,497 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-16 12:29:52,499 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-16 12:29:52,499 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-16 12:29:52,499 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-11-16 12:29:52,500 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-16 12:29:52,500 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-16 12:29:52,500 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-16 12:29:52,501 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-16 12:29:52,501 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/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_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8
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 -> c05e0afe400610a03af7f85bf1fa08609bbde642205244db1c80922af0f91249
[2022-11-16 12:29:52,855 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-16 12:29:52,881 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-16 12:29:52,884 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-16 12:29:52,886 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-16 12:29:52,887 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-16 12:29:52,889 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/eca-rers2012/Problem05_label56.c
[2022-11-16 12:29:52,980 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/data/9306a1b04/55af9cd218fd4ef683042001e244f046/FLAG2bfbefaf9
[2022-11-16 12:29:54,113 INFO  L306              CDTParser]: Found 1 translation units.
[2022-11-16 12:29:54,114 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/sv-benchmarks/c/eca-rers2012/Problem05_label56.c
[2022-11-16 12:29:54,161 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/data/9306a1b04/55af9cd218fd4ef683042001e244f046/FLAG2bfbefaf9
[2022-11-16 12:29:54,382 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/data/9306a1b04/55af9cd218fd4ef683042001e244f046
[2022-11-16 12:29:54,385 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-16 12:29:54,391 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-16 12:29:54,395 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-16 12:29:54,395 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-16 12:29:54,399 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-16 12:29:54,400 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:29:54" (1/1) ...
[2022-11-16 12:29:54,402 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@684acce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:54, skipping insertion in model container
[2022-11-16 12:29:54,402 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:29:54" (1/1) ...
[2022-11-16 12:29:54,410 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-16 12:29:54,684 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-16 12:29:57,189 WARN  L229   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_0edfdc98-f6c6-4a57-9651-1f51687e676c/sv-benchmarks/c/eca-rers2012/Problem05_label56.c[379708,379721]
[2022-11-16 12:29:57,218 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-16 12:29:57,233 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-16 12:29:58,628 WARN  L229   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_0edfdc98-f6c6-4a57-9651-1f51687e676c/sv-benchmarks/c/eca-rers2012/Problem05_label56.c[379708,379721]
[2022-11-16 12:29:58,636 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-16 12:29:58,700 INFO  L208         MainTranslator]: Completed translation
[2022-11-16 12:29:58,700 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58 WrapperNode
[2022-11-16 12:29:58,701 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-16 12:29:58,703 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-16 12:29:58,703 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-16 12:29:58,703 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-16 12:29:58,712 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:29:58,858 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:29:59,475 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12346
[2022-11-16 12:29:59,476 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-16 12:29:59,477 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-16 12:29:59,477 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-16 12:29:59,477 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-16 12:29:59,515 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:29:59,515 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:29:59,614 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:29:59,615 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:29:59,844 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:30:00,027 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:30:00,046 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:30:00,059 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:30:00,135 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-16 12:30:00,136 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-16 12:30:00,136 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-16 12:30:00,136 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-16 12:30:00,137 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (1/1) ...
[2022-11-16 12:30:00,153 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-16 12:30:00,175 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/z3
[2022-11-16 12:30:00,216 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-16 12:30:00,279 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfdc98-f6c6-4a57-9651-1f51687e676c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-16 12:30:00,347 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-16 12:30:00,347 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-16 12:30:00,347 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-16 12:30:00,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-16 12:30:00,456 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-16 12:30:00,473 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-16 12:30:11,468 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-16 12:30:11,500 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-16 12:30:11,500 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-16 12:30:11,506 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:11 BoogieIcfgContainer
[2022-11-16 12:30:11,506 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-16 12:30:11,508 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-16 12:30:11,509 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-16 12:30:11,513 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-16 12:30:11,513 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:29:54" (1/3) ...
[2022-11-16 12:30:11,514 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153cbefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:11, skipping insertion in model container
[2022-11-16 12:30:11,514 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:58" (2/3) ...
[2022-11-16 12:30:11,515 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153cbefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:11, skipping insertion in model container
[2022-11-16 12:30:11,515 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:11" (3/3) ...
[2022-11-16 12:30:11,517 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label56.c
[2022-11-16 12:30:11,541 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-16 12:30:11,541 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-16 12:30:11,662 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-16 12:30:11,671 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;@49555fd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-16 12:30:11,671 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-16 12:30:11,688 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)
[2022-11-16 12:30:11,857 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1674
[2022-11-16 12:30:11,858 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:30:11,860 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]
[2022-11-16 12:30:11,861 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:30:11,868 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:30:11,869 INFO  L85        PathProgramCache]: Analyzing trace with hash 197007929, now seen corresponding path program 1 times
[2022-11-16 12:30:11,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:30:11,878 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432215881]
[2022-11-16 12:30:11,879 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:30:11,880 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:30:13,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:30:22,259 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 12:30:22,260 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:30:22,261 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432215881]
[2022-11-16 12:30:22,262 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432215881] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:30:22,263 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:30:22,263 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 12:30:22,265 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078657069]
[2022-11-16 12:30:22,266 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:30:22,278 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-16 12:30:22,279 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:30:22,321 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-16 12:30:22,323 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-16 12:30:22,331 INFO  L87              Difference]: Start difference. First operand  has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 418.25) internal successors, (1673), 3 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:30:45,198 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:30:45,198 INFO  L93              Difference]: Finished difference Result 9493 states and 18317 transitions.
[2022-11-16 12:30:45,199 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-11-16 12:30:45,201 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 418.25) internal successors, (1673), 3 states have internal predecessors, (1673), 0 states have call successors, (0), 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 1673
[2022-11-16 12:30:45,208 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:30:45,259 INFO  L225             Difference]: With dead ends: 9493
[2022-11-16 12:30:45,260 INFO  L226             Difference]: Without dead ends: 7238
[2022-11-16 12:30:45,268 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-16 12:30:45,272 INFO  L413           NwaCegarLoop]: 2350 mSDtfsCounter, 3667 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 13848 mSolverCounterSat, 5279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3667 SdHoareTripleChecker+Valid, 2735 SdHoareTripleChecker+Invalid, 19127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5279 IncrementalHoareTripleChecker+Valid, 13848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time
[2022-11-16 12:30:45,273 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3667 Valid, 2735 Invalid, 19127 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5279 Valid, 13848 Invalid, 0 Unknown, 0 Unchecked, 21.9s Time]
[2022-11-16 12:30:45,302 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7238 states.
[2022-11-16 12:30:45,465 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7238 to 5583.
[2022-11-16 12:30:45,477 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5583 states, 5582 states have (on average 1.5829451809387316) internal successors, (8836), 5582 states have internal predecessors, (8836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:30:45,492 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 8836 transitions.
[2022-11-16 12:30:45,493 INFO  L78                 Accepts]: Start accepts. Automaton has 5583 states and 8836 transitions. Word has length 1673
[2022-11-16 12:30:45,497 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 12:30:45,497 INFO  L495      AbstractCegarLoop]: Abstraction has 5583 states and 8836 transitions.
[2022-11-16 12:30:45,498 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 418.25) internal successors, (1673), 3 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:30:45,499 INFO  L276                IsEmpty]: Start isEmpty. Operand 5583 states and 8836 transitions.
[2022-11-16 12:30:45,670 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1692
[2022-11-16 12:30:45,671 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:30:45,672 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 12:30:45,673 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-16 12:30:45,673 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:30:45,674 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:30:45,674 INFO  L85        PathProgramCache]: Analyzing trace with hash 1606706727, now seen corresponding path program 1 times
[2022-11-16 12:30:45,675 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:30:45,675 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535658635]
[2022-11-16 12:30:45,676 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:30:45,676 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:30:46,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:30:48,625 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 12:30:48,625 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:30:48,626 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535658635]
[2022-11-16 12:30:48,627 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535658635] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:30:48,627 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:30:48,628 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 12:30:48,628 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555457448]
[2022-11-16 12:30:48,628 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:30:48,633 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 12:30:48,634 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:30:48,634 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 12:30:48,634 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 12:30:48,637 INFO  L87              Difference]: Start difference. First operand 5583 states and 8836 transitions. Second operand  has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:30:57,808 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:30:57,808 INFO  L93              Difference]: Finished difference Result 14718 states and 24340 transitions.
[2022-11-16 12:30:57,811 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 12:30:57,813 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 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 1691
[2022-11-16 12:30:57,818 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:30:57,863 INFO  L225             Difference]: With dead ends: 14718
[2022-11-16 12:30:57,864 INFO  L226             Difference]: Without dead ends: 9137
[2022-11-16 12:30:57,874 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
[2022-11-16 12:30:57,876 INFO  L413           NwaCegarLoop]: 3085 mSDtfsCounter, 383 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 5973 mSolverCounterSat, 873 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 3513 SdHoareTripleChecker+Invalid, 6846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 873 IncrementalHoareTripleChecker+Valid, 5973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2022-11-16 12:30:57,877 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 3513 Invalid, 6846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [873 Valid, 5973 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time]
[2022-11-16 12:30:57,892 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9137 states.
[2022-11-16 12:30:58,129 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9137 to 9096.
[2022-11-16 12:30:58,151 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9096 states, 9095 states have (on average 1.5478834524463991) internal successors, (14078), 9095 states have internal predecessors, (14078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:30:58,179 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9096 states to 9096 states and 14078 transitions.
[2022-11-16 12:30:58,179 INFO  L78                 Accepts]: Start accepts. Automaton has 9096 states and 14078 transitions. Word has length 1691
[2022-11-16 12:30:58,185 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 12:30:58,186 INFO  L495      AbstractCegarLoop]: Abstraction has 9096 states and 14078 transitions.
[2022-11-16 12:30:58,188 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:30:58,188 INFO  L276                IsEmpty]: Start isEmpty. Operand 9096 states and 14078 transitions.
[2022-11-16 12:30:58,263 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1703
[2022-11-16 12:30:58,265 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:30:58,267 INFO  L195           NwaCegarLoop]: trace histogram [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, 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]
[2022-11-16 12:30:58,270 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-16 12:30:58,271 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:30:58,272 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:30:58,273 INFO  L85        PathProgramCache]: Analyzing trace with hash 764093917, now seen corresponding path program 1 times
[2022-11-16 12:30:58,273 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:30:58,274 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310295121]
[2022-11-16 12:30:58,276 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:30:58,276 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:30:58,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:31:00,760 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 12:31:00,760 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:31:00,761 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310295121]
[2022-11-16 12:31:00,761 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310295121] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:31:00,762 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:31:00,762 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 12:31:00,762 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480847460]
[2022-11-16 12:31:00,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:31:00,765 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 12:31:00,765 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:31:00,766 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 12:31:00,766 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 12:31:00,768 INFO  L87              Difference]: Start difference. First operand 9096 states and 14078 transitions. Second operand  has 3 states, 3 states have (on average 567.3333333333334) internal successors, (1702), 3 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:09,985 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:31:09,985 INFO  L93              Difference]: Finished difference Result 25099 states and 39859 transitions.
[2022-11-16 12:31:09,986 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 12:31:09,987 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 567.3333333333334) internal successors, (1702), 3 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1702
[2022-11-16 12:31:09,988 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:31:10,051 INFO  L225             Difference]: With dead ends: 25099
[2022-11-16 12:31:10,052 INFO  L226             Difference]: Without dead ends: 16005
[2022-11-16 12:31:10,067 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
[2022-11-16 12:31:10,068 INFO  L413           NwaCegarLoop]: 3376 mSDtfsCounter, 1890 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 5194 mSolverCounterSat, 2161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 3622 SdHoareTripleChecker+Invalid, 7355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2161 IncrementalHoareTripleChecker+Valid, 5194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2022-11-16 12:31:10,069 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 3622 Invalid, 7355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2161 Valid, 5194 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time]
[2022-11-16 12:31:10,090 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16005 states.
[2022-11-16 12:31:10,388 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16005 to 15932.
[2022-11-16 12:31:10,420 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15932 states, 15931 states have (on average 1.4334316740945328) internal successors, (22836), 15931 states have internal predecessors, (22836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:10,451 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15932 states to 15932 states and 22836 transitions.
[2022-11-16 12:31:10,451 INFO  L78                 Accepts]: Start accepts. Automaton has 15932 states and 22836 transitions. Word has length 1702
[2022-11-16 12:31:10,451 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 12:31:10,452 INFO  L495      AbstractCegarLoop]: Abstraction has 15932 states and 22836 transitions.
[2022-11-16 12:31:10,453 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 567.3333333333334) internal successors, (1702), 3 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:10,453 INFO  L276                IsEmpty]: Start isEmpty. Operand 15932 states and 22836 transitions.
[2022-11-16 12:31:10,514 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1732
[2022-11-16 12:31:10,515 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:31:10,516 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-11-16 12:31:10,516 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-16 12:31:10,517 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:31:10,517 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:31:10,518 INFO  L85        PathProgramCache]: Analyzing trace with hash 576251195, now seen corresponding path program 1 times
[2022-11-16 12:31:10,518 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:31:10,519 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303732874]
[2022-11-16 12:31:10,519 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:31:10,519 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:31:10,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:31:13,986 INFO  L134       CoverageAnalysis]: Checked inductivity of 107 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked.
[2022-11-16 12:31:13,987 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:31:13,987 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303732874]
[2022-11-16 12:31:13,988 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303732874] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:31:13,988 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:31:13,988 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 12:31:13,989 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786023259]
[2022-11-16 12:31:13,989 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:31:13,991 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-16 12:31:13,992 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:31:13,992 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-16 12:31:13,993 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-11-16 12:31:13,995 INFO  L87              Difference]: Start difference. First operand 15932 states and 22836 transitions. Second operand  has 4 states, 4 states have (on average 426.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:27,286 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:31:27,286 INFO  L93              Difference]: Finished difference Result 52265 states and 74655 transitions.
[2022-11-16 12:31:27,286 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-11-16 12:31:27,287 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 426.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 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 1731
[2022-11-16 12:31:27,287 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:31:27,369 INFO  L225             Difference]: With dead ends: 52265
[2022-11-16 12:31:27,369 INFO  L226             Difference]: Without dead ends: 36335
[2022-11-16 12:31:27,390 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
[2022-11-16 12:31:27,392 INFO  L413           NwaCegarLoop]: 1597 mSDtfsCounter, 4291 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 8837 mSolverCounterSat, 3335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4291 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 12172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3335 IncrementalHoareTripleChecker+Valid, 8837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time
[2022-11-16 12:31:27,392 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4291 Valid, 1946 Invalid, 12172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3335 Valid, 8837 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time]
[2022-11-16 12:31:27,436 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36335 states.
[2022-11-16 12:31:27,967 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36335 to 36324.
[2022-11-16 12:31:28,026 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36324 states, 36323 states have (on average 1.280703686369518) internal successors, (46519), 36323 states have internal predecessors, (46519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:28,093 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36324 states to 36324 states and 46519 transitions.
[2022-11-16 12:31:28,093 INFO  L78                 Accepts]: Start accepts. Automaton has 36324 states and 46519 transitions. Word has length 1731
[2022-11-16 12:31:28,094 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 12:31:28,094 INFO  L495      AbstractCegarLoop]: Abstraction has 36324 states and 46519 transitions.
[2022-11-16 12:31:28,095 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 426.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:28,096 INFO  L276                IsEmpty]: Start isEmpty. Operand 36324 states and 46519 transitions.
[2022-11-16 12:31:28,208 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1761
[2022-11-16 12:31:28,209 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:31:28,210 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 12:31:28,210 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-16 12:31:28,211 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:31:28,211 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:31:28,212 INFO  L85        PathProgramCache]: Analyzing trace with hash 1770161709, now seen corresponding path program 1 times
[2022-11-16 12:31:28,212 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:31:28,213 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936456652]
[2022-11-16 12:31:28,213 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:31:28,214 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:31:28,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:31:29,693 INFO  L134       CoverageAnalysis]: Checked inductivity of 163 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked.
[2022-11-16 12:31:29,693 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:31:29,694 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936456652]
[2022-11-16 12:31:29,694 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936456652] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:31:29,694 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:31:29,694 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-16 12:31:29,695 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455136763]
[2022-11-16 12:31:29,695 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:31:29,697 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 12:31:29,697 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:31:29,698 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 12:31:29,698 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 12:31:29,699 INFO  L87              Difference]: Start difference. First operand 36324 states and 46519 transitions. Second operand  has 3 states, 3 states have (on average 573.0) internal successors, (1719), 2 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:39,128 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:31:39,128 INFO  L93              Difference]: Finished difference Result 91362 states and 116418 transitions.
[2022-11-16 12:31:39,128 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 12:31:39,129 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 573.0) internal successors, (1719), 2 states have internal predecessors, (1719), 0 states have call successors, (0), 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 1760
[2022-11-16 12:31:39,129 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:31:39,253 INFO  L225             Difference]: With dead ends: 91362
[2022-11-16 12:31:39,253 INFO  L226             Difference]: Without dead ends: 55040
[2022-11-16 12:31:39,296 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
[2022-11-16 12:31:39,298 INFO  L413           NwaCegarLoop]: 2017 mSDtfsCounter, 1968 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5082 mSolverCounterSat, 2030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 7112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2030 IncrementalHoareTripleChecker+Valid, 5082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2022-11-16 12:31:39,298 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 2166 Invalid, 7112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2030 Valid, 5082 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time]
[2022-11-16 12:31:39,361 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55040 states.
[2022-11-16 12:31:40,063 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55040 to 55021.
[2022-11-16 12:31:40,121 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55021 states, 55020 states have (on average 1.2046528535078154) internal successors, (66280), 55020 states have internal predecessors, (66280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:40,215 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55021 states to 55021 states and 66280 transitions.
[2022-11-16 12:31:40,216 INFO  L78                 Accepts]: Start accepts. Automaton has 55021 states and 66280 transitions. Word has length 1760
[2022-11-16 12:31:40,216 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 12:31:40,218 INFO  L495      AbstractCegarLoop]: Abstraction has 55021 states and 66280 transitions.
[2022-11-16 12:31:40,223 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 573.0) internal successors, (1719), 2 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:40,224 INFO  L276                IsEmpty]: Start isEmpty. Operand 55021 states and 66280 transitions.
[2022-11-16 12:31:40,322 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1779
[2022-11-16 12:31:40,322 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:31:40,324 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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]
[2022-11-16 12:31:40,324 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-11-16 12:31:40,324 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:31:40,325 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:31:40,326 INFO  L85        PathProgramCache]: Analyzing trace with hash 1264691225, now seen corresponding path program 1 times
[2022-11-16 12:31:40,328 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:31:40,328 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158339030]
[2022-11-16 12:31:40,329 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:31:40,329 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:31:40,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:31:41,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 222 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked.
[2022-11-16 12:31:41,740 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:31:41,741 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158339030]
[2022-11-16 12:31:41,741 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158339030] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:31:41,741 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:31:41,741 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-16 12:31:41,742 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788736458]
[2022-11-16 12:31:41,742 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:31:41,744 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 12:31:41,745 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:31:41,745 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 12:31:41,746 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 12:31:41,746 INFO  L87              Difference]: Start difference. First operand 55021 states and 66280 transitions. Second operand  has 3 states, 3 states have (on average 574.6666666666666) internal successors, (1724), 2 states have internal predecessors, (1724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:49,817 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:31:49,817 INFO  L93              Difference]: Finished difference Result 137204 states and 163210 transitions.
[2022-11-16 12:31:49,818 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 12:31:49,819 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 574.6666666666666) internal successors, (1724), 2 states have internal predecessors, (1724), 0 states have call successors, (0), 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 1778
[2022-11-16 12:31:49,819 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:31:49,929 INFO  L225             Difference]: With dead ends: 137204
[2022-11-16 12:31:49,930 INFO  L226             Difference]: Without dead ends: 82185
[2022-11-16 12:31:49,976 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
[2022-11-16 12:31:49,977 INFO  L413           NwaCegarLoop]: 1069 mSDtfsCounter, 3154 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4772 mSolverCounterSat, 1206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3154 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 5978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1206 IncrementalHoareTripleChecker+Valid, 4772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time
[2022-11-16 12:31:49,978 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3154 Valid, 1152 Invalid, 5978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1206 Valid, 4772 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time]
[2022-11-16 12:31:50,080 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82185 states.
[2022-11-16 12:31:51,061 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82185 to 82185.
[2022-11-16 12:31:51,137 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82185 states, 82184 states have (on average 1.1312177552808333) internal successors, (92968), 82184 states have internal predecessors, (92968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:51,262 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82185 states to 82185 states and 92968 transitions.
[2022-11-16 12:31:51,262 INFO  L78                 Accepts]: Start accepts. Automaton has 82185 states and 92968 transitions. Word has length 1778
[2022-11-16 12:31:51,263 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 12:31:51,263 INFO  L495      AbstractCegarLoop]: Abstraction has 82185 states and 92968 transitions.
[2022-11-16 12:31:51,264 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 574.6666666666666) internal successors, (1724), 2 states have internal predecessors, (1724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:31:51,264 INFO  L276                IsEmpty]: Start isEmpty. Operand 82185 states and 92968 transitions.
[2022-11-16 12:31:51,894 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1893
[2022-11-16 12:31:51,894 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:31:51,895 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 12:31:51,896 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-11-16 12:31:51,896 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:31:51,897 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:31:51,914 INFO  L85        PathProgramCache]: Analyzing trace with hash 1491266519, now seen corresponding path program 1 times
[2022-11-16 12:31:51,915 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:31:51,915 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558055345]
[2022-11-16 12:31:51,915 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:31:51,916 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:31:52,606 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:31:55,712 INFO  L134       CoverageAnalysis]: Checked inductivity of 326 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 12:31:55,713 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:31:55,713 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558055345]
[2022-11-16 12:31:55,713 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558055345] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:31:55,714 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:31:55,714 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 12:31:55,714 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342988890]
[2022-11-16 12:31:55,715 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:31:55,718 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 12:31:55,718 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:31:55,719 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 12:31:55,719 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 12:31:55,720 INFO  L87              Difference]: Start difference. First operand 82185 states and 92968 transitions. Second operand  has 3 states, 3 states have (on average 630.6666666666666) internal successors, (1892), 3 states have internal predecessors, (1892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:05,811 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:32:05,811 INFO  L93              Difference]: Finished difference Result 193334 states and 221735 transitions.
[2022-11-16 12:32:05,812 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 12:32:05,812 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 630.6666666666666) internal successors, (1892), 3 states have internal predecessors, (1892), 0 states have call successors, (0), 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 1892
[2022-11-16 12:32:05,813 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:32:05,939 INFO  L225             Difference]: With dead ends: 193334
[2022-11-16 12:32:05,939 INFO  L226             Difference]: Without dead ends: 111151
[2022-11-16 12:32:05,990 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
[2022-11-16 12:32:05,991 INFO  L413           NwaCegarLoop]: 3742 mSDtfsCounter, 1763 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 6093 mSolverCounterSat, 1267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 3969 SdHoareTripleChecker+Invalid, 7360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1267 IncrementalHoareTripleChecker+Valid, 6093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time
[2022-11-16 12:32:05,991 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 3969 Invalid, 7360 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1267 Valid, 6093 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time]
[2022-11-16 12:32:06,121 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 111151 states.
[2022-11-16 12:32:07,797 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 111151 to 111065.
[2022-11-16 12:32:07,915 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 111065 states, 111064 states have (on average 1.1191475185478643) internal successors, (124297), 111064 states have internal predecessors, (124297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:08,248 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 111065 states to 111065 states and 124297 transitions.
[2022-11-16 12:32:08,248 INFO  L78                 Accepts]: Start accepts. Automaton has 111065 states and 124297 transitions. Word has length 1892
[2022-11-16 12:32:08,250 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 12:32:08,250 INFO  L495      AbstractCegarLoop]: Abstraction has 111065 states and 124297 transitions.
[2022-11-16 12:32:08,251 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 630.6666666666666) internal successors, (1892), 3 states have internal predecessors, (1892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:08,251 INFO  L276                IsEmpty]: Start isEmpty. Operand 111065 states and 124297 transitions.
[2022-11-16 12:32:08,701 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2121
[2022-11-16 12:32:08,701 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:32:08,703 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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]
[2022-11-16 12:32:08,703 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-11-16 12:32:08,704 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:32:08,704 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:32:08,705 INFO  L85        PathProgramCache]: Analyzing trace with hash -1931444362, now seen corresponding path program 1 times
[2022-11-16 12:32:08,705 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:32:08,705 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934172352]
[2022-11-16 12:32:08,706 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:32:08,706 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:32:09,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:32:11,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 771 backedges. 661 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked.
[2022-11-16 12:32:11,118 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:32:11,118 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934172352]
[2022-11-16 12:32:11,118 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934172352] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:32:11,118 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:32:11,119 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 12:32:11,119 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758460699]
[2022-11-16 12:32:11,119 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:32:11,122 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 12:32:11,123 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:32:11,123 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 12:32:11,123 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 12:32:11,124 INFO  L87              Difference]: Start difference. First operand 111065 states and 124297 transitions. Second operand  has 3 states, 3 states have (on average 670.3333333333334) internal successors, (2011), 3 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:21,283 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:32:21,283 INFO  L93              Difference]: Finished difference Result 249317 states and 280502 transitions.
[2022-11-16 12:32:21,283 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 12:32:21,284 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 670.3333333333334) internal successors, (2011), 3 states have internal predecessors, (2011), 0 states have call successors, (0), 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 2120
[2022-11-16 12:32:21,285 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:32:21,631 INFO  L225             Difference]: With dead ends: 249317
[2022-11-16 12:32:21,631 INFO  L226             Difference]: Without dead ends: 138254
[2022-11-16 12:32:21,671 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
[2022-11-16 12:32:21,673 INFO  L413           NwaCegarLoop]: 3820 mSDtfsCounter, 1588 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 5695 mSolverCounterSat, 1243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 4086 SdHoareTripleChecker+Invalid, 6938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1243 IncrementalHoareTripleChecker+Valid, 5695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time
[2022-11-16 12:32:21,676 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 4086 Invalid, 6938 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1243 Valid, 5695 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time]
[2022-11-16 12:32:21,787 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 138254 states.
[2022-11-16 12:32:23,411 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 138254 to 138233.
[2022-11-16 12:32:23,509 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 138233 states, 138232 states have (on average 1.1026607442560334) internal successors, (152423), 138232 states have internal predecessors, (152423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:23,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 138233 states to 138233 states and 152423 transitions.
[2022-11-16 12:32:23,748 INFO  L78                 Accepts]: Start accepts. Automaton has 138233 states and 152423 transitions. Word has length 2120
[2022-11-16 12:32:23,749 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 12:32:23,749 INFO  L495      AbstractCegarLoop]: Abstraction has 138233 states and 152423 transitions.
[2022-11-16 12:32:23,750 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 670.3333333333334) internal successors, (2011), 3 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:23,751 INFO  L276                IsEmpty]: Start isEmpty. Operand 138233 states and 152423 transitions.
[2022-11-16 12:32:24,539 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2157
[2022-11-16 12:32:24,539 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:32:24,540 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 12:32:24,540 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-11-16 12:32:24,540 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:32:24,541 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:32:24,542 INFO  L85        PathProgramCache]: Analyzing trace with hash -1583547937, now seen corresponding path program 1 times
[2022-11-16 12:32:24,542 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:32:24,542 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752462234]
[2022-11-16 12:32:24,542 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:32:24,542 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:32:24,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:32:27,079 INFO  L134       CoverageAnalysis]: Checked inductivity of 914 backedges. 769 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked.
[2022-11-16 12:32:27,080 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:32:27,080 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752462234]
[2022-11-16 12:32:27,080 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752462234] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:32:27,081 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:32:27,081 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 12:32:27,081 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811671799]
[2022-11-16 12:32:27,082 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:32:27,085 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 12:32:27,085 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:32:27,086 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 12:32:27,086 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 12:32:27,087 INFO  L87              Difference]: Start difference. First operand 138233 states and 152423 transitions. Second operand  has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:37,810 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:32:37,811 INFO  L93              Difference]: Finished difference Result 359651 states and 399026 transitions.
[2022-11-16 12:32:37,813 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 12:32:37,814 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 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 2156
[2022-11-16 12:32:37,815 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:32:38,125 INFO  L225             Difference]: With dead ends: 359651
[2022-11-16 12:32:38,125 INFO  L226             Difference]: Without dead ends: 221420
[2022-11-16 12:32:38,182 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
[2022-11-16 12:32:38,183 INFO  L413           NwaCegarLoop]: 3357 mSDtfsCounter, 2049 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4903 mSolverCounterSat, 2225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 3466 SdHoareTripleChecker+Invalid, 7128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2225 IncrementalHoareTripleChecker+Valid, 4903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time
[2022-11-16 12:32:38,184 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 3466 Invalid, 7128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2225 Valid, 4903 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time]
[2022-11-16 12:32:38,415 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 221420 states.
[2022-11-16 12:32:40,996 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 221420 to 221411.
[2022-11-16 12:32:41,138 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 221411 states, 221410 states have (on average 1.0951718531231651) internal successors, (242482), 221410 states have internal predecessors, (242482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:41,492 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 221411 states to 221411 states and 242482 transitions.
[2022-11-16 12:32:41,492 INFO  L78                 Accepts]: Start accepts. Automaton has 221411 states and 242482 transitions. Word has length 2156
[2022-11-16 12:32:41,493 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 12:32:41,493 INFO  L495      AbstractCegarLoop]: Abstraction has 221411 states and 242482 transitions.
[2022-11-16 12:32:41,494 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:41,495 INFO  L276                IsEmpty]: Start isEmpty. Operand 221411 states and 242482 transitions.
[2022-11-16 12:32:42,247 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2163
[2022-11-16 12:32:42,247 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:32:42,249 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 12:32:42,249 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-11-16 12:32:42,250 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:32:42,250 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:32:42,251 INFO  L85        PathProgramCache]: Analyzing trace with hash -424307895, now seen corresponding path program 1 times
[2022-11-16 12:32:42,252 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:32:42,252 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102194650]
[2022-11-16 12:32:42,253 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:32:42,253 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:32:42,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:32:44,076 INFO  L134       CoverageAnalysis]: Checked inductivity of 920 backedges. 741 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked.
[2022-11-16 12:32:44,077 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:32:44,077 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102194650]
[2022-11-16 12:32:44,077 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102194650] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:32:44,078 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:32:44,078 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 12:32:44,078 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697177462]
[2022-11-16 12:32:44,078 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:32:44,081 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 12:32:44,081 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:32:44,081 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 12:32:44,082 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 12:32:44,083 INFO  L87              Difference]: Start difference. First operand 221411 states and 242482 transitions. Second operand  has 3 states, 3 states have (on average 673.3333333333334) internal successors, (2020), 3 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:53,968 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:32:53,969 INFO  L93              Difference]: Finished difference Result 441027 states and 482966 transitions.
[2022-11-16 12:32:53,969 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 12:32:53,969 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 673.3333333333334) internal successors, (2020), 3 states have internal predecessors, (2020), 0 states have call successors, (0), 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 2162
[2022-11-16 12:32:53,970 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:32:54,255 INFO  L225             Difference]: With dead ends: 441027
[2022-11-16 12:32:54,255 INFO  L226             Difference]: Without dead ends: 212795
[2022-11-16 12:32:54,357 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
[2022-11-16 12:32:54,358 INFO  L413           NwaCegarLoop]: 1480 mSDtfsCounter, 2554 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 4456 mSolverCounterSat, 1695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 6151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1695 IncrementalHoareTripleChecker+Valid, 4456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time
[2022-11-16 12:32:54,358 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2554 Valid, 1615 Invalid, 6151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1695 Valid, 4456 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time]
[2022-11-16 12:32:54,567 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 212795 states.
[2022-11-16 12:32:57,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 212795 to 190709.
[2022-11-16 12:32:57,654 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 190709 states, 190708 states have (on average 1.0654823080311262) internal successors, (203196), 190708 states have internal predecessors, (203196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:58,079 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 190709 states to 190709 states and 203196 transitions.
[2022-11-16 12:32:58,080 INFO  L78                 Accepts]: Start accepts. Automaton has 190709 states and 203196 transitions. Word has length 2162
[2022-11-16 12:32:58,080 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 12:32:58,080 INFO  L495      AbstractCegarLoop]: Abstraction has 190709 states and 203196 transitions.
[2022-11-16 12:32:58,081 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 673.3333333333334) internal successors, (2020), 3 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:32:58,081 INFO  L276                IsEmpty]: Start isEmpty. Operand 190709 states and 203196 transitions.
[2022-11-16 12:32:58,253 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2233
[2022-11-16 12:32:58,253 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 12:32:58,254 INFO  L195           NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-11-16 12:32:58,255 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-11-16 12:32:58,255 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 12:32:58,256 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 12:32:58,256 INFO  L85        PathProgramCache]: Analyzing trace with hash 275371741, now seen corresponding path program 1 times
[2022-11-16 12:32:58,257 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 12:32:58,257 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116770711]
[2022-11-16 12:32:58,258 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 12:32:58,258 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 12:32:58,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 12:33:01,208 INFO  L134       CoverageAnalysis]: Checked inductivity of 1115 backedges. 778 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked.
[2022-11-16 12:33:01,209 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 12:33:01,209 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116770711]
[2022-11-16 12:33:01,209 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116770711] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 12:33:01,209 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 12:33:01,209 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 12:33:01,210 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042190602]
[2022-11-16 12:33:01,210 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 12:33:01,211 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 12:33:01,211 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 12:33:01,211 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 12:33:01,212 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 12:33:01,212 INFO  L87              Difference]: Start difference. First operand 190709 states and 203196 transitions. Second operand  has 3 states, 3 states have (on average 644.3333333333334) internal successors, (1933), 3 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-16 12:33:11,700 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 12:33:11,700 INFO  L93              Difference]: Finished difference Result 444233 states and 475872 transitions.
[2022-11-16 12:33:11,701 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 12:33:11,701 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 644.3333333333334) internal successors, (1933), 3 states have internal predecessors, (1933), 0 states have call successors, (0), 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 2232
[2022-11-16 12:33:11,702 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 12:33:12,030 INFO  L225             Difference]: With dead ends: 444233
[2022-11-16 12:33:12,030 INFO  L226             Difference]: Without dead ends: 253526
[2022-11-16 12:33:12,107 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
[2022-11-16 12:33:12,108 INFO  L413           NwaCegarLoop]: 3504 mSDtfsCounter, 1908 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 5198 mSolverCounterSat, 1181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 3833 SdHoareTripleChecker+Invalid, 6379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1181 IncrementalHoareTripleChecker+Valid, 5198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time
[2022-11-16 12:33:12,109 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1908 Valid, 3833 Invalid, 6379 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1181 Valid, 5198 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time]
[2022-11-16 12:33:12,338 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 253526 states.
[2022-11-16 12:33:15,178 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 253526 to 251827.
[2022-11-16 12:33:15,330 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 251827 states, 251826 states have (on average 1.058318044999325) internal successors, (266512), 251826 states have internal predecessors, (266512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)