./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label59.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 839c364b
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label59.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa --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 7f2d2e41c47909f310aca89c72ace97c8714a25c0bdd2c7a3c7fdf51efd78935
--- Real Ultimate output ---
This is Ultimate 0.2.2-hotfix-svcomp22-839c364
[2021-12-06 23:21:13,933 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-12-06 23:21:13,934 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-12-06 23:21:13,957 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-12-06 23:21:13,957 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-12-06 23:21:13,958 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-12-06 23:21:13,959 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-12-06 23:21:13,972 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-12-06 23:21:13,974 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-12-06 23:21:13,975 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-12-06 23:21:13,976 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-12-06 23:21:13,977 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-12-06 23:21:13,978 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-12-06 23:21:13,979 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-12-06 23:21:13,980 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-12-06 23:21:13,982 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-12-06 23:21:13,983 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-12-06 23:21:13,984 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-12-06 23:21:13,986 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-12-06 23:21:13,988 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-12-06 23:21:13,990 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-12-06 23:21:13,991 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-12-06 23:21:13,993 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-12-06 23:21:13,999 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-12-06 23:21:14,002 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-12-06 23:21:14,002 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-12-06 23:21:14,003 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-12-06 23:21:14,004 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-12-06 23:21:14,004 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-12-06 23:21:14,005 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-12-06 23:21:14,006 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-12-06 23:21:14,007 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-12-06 23:21:14,007 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-12-06 23:21:14,008 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-12-06 23:21:14,009 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-12-06 23:21:14,009 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-12-06 23:21:14,010 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-12-06 23:21:14,010 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-12-06 23:21:14,010 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-12-06 23:21:14,011 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-12-06 23:21:14,012 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-12-06 23:21:14,013 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-12-06 23:21:14,032 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-12-06 23:21:14,032 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-12-06 23:21:14,032 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-12-06 23:21:14,033 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-12-06 23:21:14,033 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-12-06 23:21:14,033 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-12-06 23:21:14,034 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-12-06 23:21:14,034 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-12-06 23:21:14,034 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-12-06 23:21:14,034 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-12-06 23:21:14,034 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-12-06 23:21:14,034 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-12-06 23:21:14,034 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-12-06 23:21:14,034 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-12-06 23:21:14,034 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-12-06 23:21:14,035 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-12-06 23:21:14,035 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-12-06 23:21:14,035 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-12-06 23:21:14,035 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-12-06 23:21:14,035 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-12-06 23:21:14,035 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-12-06 23:21:14,035 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-12-06 23:21:14,035 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-12-06 23:21:14,035 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-12-06 23:21:14,036 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-06 23:21:14,036 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-12-06 23:21:14,036 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-12-06 23:21:14,036 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-12-06 23:21:14,036 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-12-06 23:21:14,036 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-12-06 23:21:14,036 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-12-06 23:21:14,036 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-12-06 23:21:14,036 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-12-06 23:21:14,037 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-12-06 23:21:14,037 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_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/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_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa
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 -> 7f2d2e41c47909f310aca89c72ace97c8714a25c0bdd2c7a3c7fdf51efd78935
[2021-12-06 23:21:14,218 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-12-06 23:21:14,232 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-12-06 23:21:14,234 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-12-06 23:21:14,235 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-12-06 23:21:14,235 INFO  L275        PluginConnector]: CDTParser initialized
[2021-12-06 23:21:14,236 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/eca-rers2012/Problem07_label59.c
[2021-12-06 23:21:14,274 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/data/39276d4ee/05210507a7a44bebad512ab117285e1c/FLAG77238b35f
[2021-12-06 23:21:15,662 INFO  L306              CDTParser]: Found 1 translation units.
[2021-12-06 23:21:15,663 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/sv-benchmarks/c/eca-rers2012/Problem07_label59.c
[2021-12-06 23:21:15,849 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/data/39276d4ee/05210507a7a44bebad512ab117285e1c/FLAG77238b35f
[2021-12-06 23:21:16,260 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/data/39276d4ee/05210507a7a44bebad512ab117285e1c
[2021-12-06 23:21:16,262 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-12-06 23:21:16,263 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-12-06 23:21:16,264 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-12-06 23:21:16,264 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-12-06 23:21:16,267 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-12-06 23:21:16,268 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:21:16" (1/1) ...
[2021-12-06 23:21:16,269 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315d1806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:16, skipping insertion in model container
[2021-12-06 23:21:16,269 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:21:16" (1/1) ...
[2021-12-06 23:21:16,274 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-12-06 23:21:16,878 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-12-06 23:21:26,592 WARN  L230   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_9382ab22-7ec4-422e-b79c-a34bf2bc3878/sv-benchmarks/c/eca-rers2012/Problem07_label59.c[2776148,2776161]
[2021-12-06 23:21:26,655 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-06 23:21:26,661 INFO  L203         MainTranslator]: Completed pre-run
[2021-12-06 23:21:32,728 WARN  L230   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_9382ab22-7ec4-422e-b79c-a34bf2bc3878/sv-benchmarks/c/eca-rers2012/Problem07_label59.c[2776148,2776161]
[2021-12-06 23:21:32,731 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-06 23:21:33,449 INFO  L208         MainTranslator]: Completed translation
[2021-12-06 23:21:33,450 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33 WrapperNode
[2021-12-06 23:21:33,450 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-12-06 23:21:33,450 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-12-06 23:21:33,451 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-12-06 23:21:33,451 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-12-06 23:21:33,455 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (1/1) ...
[2021-12-06 23:21:33,703 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (1/1) ...
[2021-12-06 23:21:34,873 INFO  L137                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773
[2021-12-06 23:21:34,874 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-12-06 23:21:34,874 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-12-06 23:21:34,874 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-12-06 23:21:34,875 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-12-06 23:21:34,882 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (1/1) ...
[2021-12-06 23:21:34,882 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (1/1) ...
[2021-12-06 23:21:35,137 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (1/1) ...
[2021-12-06 23:21:35,137 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (1/1) ...
[2021-12-06 23:21:35,708 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (1/1) ...
[2021-12-06 23:21:35,855 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (1/1) ...
[2021-12-06 23:21:35,962 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (1/1) ...
[2021-12-06 23:21:36,243 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-12-06 23:21:36,244 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-12-06 23:21:36,244 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-12-06 23:21:36,244 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-12-06 23:21:36,245 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (1/1) ...
[2021-12-06 23:21:36,251 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-06 23:21:36,259 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/z3
[2021-12-06 23:21:36,269 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-12-06 23:21:36,271 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9382ab22-7ec4-422e-b79c-a34bf2bc3878/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-12-06 23:21:36,298 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-12-06 23:21:36,298 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-12-06 23:21:36,298 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-12-06 23:21:36,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-12-06 23:21:36,392 INFO  L236             CfgBuilder]: Building ICFG
[2021-12-06 23:21:36,393 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-12-06 23:22:00,135 INFO  L277             CfgBuilder]: Performing block encoding
[2021-12-06 23:22:00,180 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-12-06 23:22:00,180 INFO  L301             CfgBuilder]: Removed 1 assume(true) statements.
[2021-12-06 23:22:00,189 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:22:00 BoogieIcfgContainer
[2021-12-06 23:22:00,189 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-12-06 23:22:00,191 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-12-06 23:22:00,191 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-12-06 23:22:00,193 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-12-06 23:22:00,193 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:21:16" (1/3) ...
[2021-12-06 23:22:00,194 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba4728d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:22:00, skipping insertion in model container
[2021-12-06 23:22:00,194 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:33" (2/3) ...
[2021-12-06 23:22:00,194 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba4728d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:22:00, skipping insertion in model container
[2021-12-06 23:22:00,195 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:22:00" (3/3) ...
[2021-12-06 23:22:00,196 INFO  L111   eAbstractionObserver]: Analyzing ICFG Problem07_label59.c
[2021-12-06 23:22:00,199 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-12-06 23:22:00,199 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-12-06 23:22:00,257 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-12-06 23:22:00,262 INFO  L339      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, mLoopAccelerationTechnique=FAST_UPR
[2021-12-06 23:22:00,262 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-12-06 23:22:00,394 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:22:01,140 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10142
[2021-12-06 23:22:01,140 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 23:22:01,146 INFO  L514         BasicCegarLoop]: 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, 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[2021-12-06 23:22:01,149 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 23:22:01,155 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 23:22:01,160 INFO  L85        PathProgramCache]: Analyzing trace with hash -1921821959, now seen corresponding path program 1 times
[2021-12-06 23:22:01,167 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 23:22:01,167 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710891889]
[2021-12-06 23:22:01,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 23:22:01,170 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 23:22:02,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 23:22:22,213 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 23:22:22,213 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 23:22:22,214 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710891889]
[2021-12-06 23:22:22,214 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710891889] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 23:22:22,215 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 23:22:22,216 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 23:22:22,217 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197495587]
[2021-12-06 23:22:22,218 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 23:22:22,232 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 23:22:22,232 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 23:22:22,252 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 23:22:22,252 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 23:22:22,273 INFO  L87              Difference]: Start difference. First operand  has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 3380.3333333333335) internal successors, (10141), 2 states have internal predecessors, (10141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:22:47,176 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 23:22:47,177 INFO  L93              Difference]: Finished difference Result 30705 states and 61134 transitions.
[2021-12-06 23:22:47,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 23:22:47,180 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3380.3333333333335) internal successors, (10141), 2 states have internal predecessors, (10141), 0 states have call successors, (0), 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 10141
[2021-12-06 23:22:47,198 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 23:22:47,299 INFO  L225             Difference]: With dead ends: 30705
[2021-12-06 23:22:47,299 INFO  L226             Difference]: Without dead ends: 20384
[2021-12-06 23:22:47,313 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 23:22:47,316 INFO  L933         BasicCegarLoop]: 739 mSDtfsCounter, 485 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 33762 mSolverCounterSat, 12120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 45882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12120 IncrementalHoareTripleChecker+Valid, 33762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time
[2021-12-06 23:22:47,317 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 792 Invalid, 45882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12120 Valid, 33762 Invalid, 0 Unknown, 0 Unchecked, 24.4s Time]
[2021-12-06 23:22:47,356 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20384 states.
[2021-12-06 23:22:47,751 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 20384.
[2021-12-06 23:22:47,782 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20384 states, 20383 states have (on average 1.9570230093705538) internal successors, (39890), 20383 states have internal predecessors, (39890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:22:47,830 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20384 states to 20384 states and 39890 transitions.
[2021-12-06 23:22:47,832 INFO  L78                 Accepts]: Start accepts. Automaton has 20384 states and 39890 transitions. Word has length 10141
[2021-12-06 23:22:47,845 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 23:22:47,845 INFO  L470      AbstractCegarLoop]: Abstraction has 20384 states and 39890 transitions.
[2021-12-06 23:22:47,847 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3380.3333333333335) internal successors, (10141), 2 states have internal predecessors, (10141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:22:47,847 INFO  L276                IsEmpty]: Start isEmpty. Operand 20384 states and 39890 transitions.
[2021-12-06 23:22:48,476 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10147
[2021-12-06 23:22:48,476 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 23:22:48,481 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-06 23:22:48,481 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-12-06 23:22:48,481 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 23:22:48,482 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 23:22:48,487 INFO  L85        PathProgramCache]: Analyzing trace with hash 1054439985, now seen corresponding path program 1 times
[2021-12-06 23:22:48,487 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 23:22:48,487 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819474761]
[2021-12-06 23:22:48,488 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 23:22:48,488 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 23:22:49,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 23:23:00,776 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 23:23:00,777 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 23:23:00,777 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819474761]
[2021-12-06 23:23:00,778 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819474761] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 23:23:00,778 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 23:23:00,780 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 23:23:00,780 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803180539]
[2021-12-06 23:23:00,780 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 23:23:00,799 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 23:23:00,800 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 23:23:00,800 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 23:23:00,801 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 23:23:00,805 INFO  L87              Difference]: Start difference. First operand 20384 states and 39890 transitions. Second operand  has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:23:24,720 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 23:23:24,721 INFO  L93              Difference]: Finished difference Result 61146 states and 119665 transitions.
[2021-12-06 23:23:24,721 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 23:23:24,723 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 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 10146
[2021-12-06 23:23:24,723 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 23:23:24,789 INFO  L225             Difference]: With dead ends: 61146
[2021-12-06 23:23:24,789 INFO  L226             Difference]: Without dead ends: 40764
[2021-12-06 23:23:24,802 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 23:23:24,804 INFO  L933         BasicCegarLoop]: 4822 mSDtfsCounter, 13686 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28825 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13686 SdHoareTripleChecker+Valid, 4871 SdHoareTripleChecker+Invalid, 40502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 28825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time
[2021-12-06 23:23:24,805 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [13686 Valid, 4871 Invalid, 40502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 28825 Invalid, 0 Unknown, 0 Unchecked, 23.4s Time]
[2021-12-06 23:23:24,840 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40764 states.
[2021-12-06 23:23:25,264 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40764 to 40764.
[2021-12-06 23:23:25,298 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40764 states, 40763 states have (on average 1.731447636336874) internal successors, (70579), 40763 states have internal predecessors, (70579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:23:25,354 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 70579 transitions.
[2021-12-06 23:23:25,354 INFO  L78                 Accepts]: Start accepts. Automaton has 40764 states and 70579 transitions. Word has length 10146
[2021-12-06 23:23:25,356 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 23:23:25,356 INFO  L470      AbstractCegarLoop]: Abstraction has 40764 states and 70579 transitions.
[2021-12-06 23:23:25,357 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:23:25,358 INFO  L276                IsEmpty]: Start isEmpty. Operand 40764 states and 70579 transitions.
[2021-12-06 23:23:25,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10157
[2021-12-06 23:23:25,941 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 23:23:25,946 INFO  L514         BasicCegarLoop]: trace histogram [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, 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[2021-12-06 23:23:25,946 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-12-06 23:23:25,947 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 23:23:25,947 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 23:23:25,950 INFO  L85        PathProgramCache]: Analyzing trace with hash 1297115626, now seen corresponding path program 1 times
[2021-12-06 23:23:25,950 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 23:23:25,950 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302139442]
[2021-12-06 23:23:25,951 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 23:23:25,951 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 23:23:26,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 23:23:36,736 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 23:23:36,736 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 23:23:36,737 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302139442]
[2021-12-06 23:23:36,737 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302139442] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 23:23:36,737 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 23:23:36,739 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 23:23:36,740 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395810221]
[2021-12-06 23:23:36,740 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 23:23:36,748 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 23:23:36,748 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 23:23:36,748 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 23:23:36,748 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 23:23:36,751 INFO  L87              Difference]: Start difference. First operand 40764 states and 70579 transitions. Second operand  has 3 states, 3 states have (on average 3385.3333333333335) internal successors, (10156), 2 states have internal predecessors, (10156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:24:01,274 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 23:24:01,274 INFO  L93              Difference]: Finished difference Result 122288 states and 211733 transitions.
[2021-12-06 23:24:01,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 23:24:01,276 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3385.3333333333335) internal successors, (10156), 2 states have internal predecessors, (10156), 0 states have call successors, (0), 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 10156
[2021-12-06 23:24:01,276 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 23:24:01,358 INFO  L225             Difference]: With dead ends: 122288
[2021-12-06 23:24:01,358 INFO  L226             Difference]: Without dead ends: 81526
[2021-12-06 23:24:01,388 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 23:24:01,389 INFO  L933         BasicCegarLoop]: 7618 mSDtfsCounter, 12055 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35106 mSolverCounterSat, 6981 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12055 SdHoareTripleChecker+Valid, 7668 SdHoareTripleChecker+Invalid, 42087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6981 IncrementalHoareTripleChecker+Valid, 35106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time
[2021-12-06 23:24:01,389 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [12055 Valid, 7668 Invalid, 42087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6981 Valid, 35106 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time]
[2021-12-06 23:24:01,441 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81526 states.
[2021-12-06 23:24:02,054 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81526 to 81524.
[2021-12-06 23:24:02,110 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81524 states, 81523 states have (on average 1.5510837432381046) internal successors, (126449), 81523 states have internal predecessors, (126449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:24:02,209 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81524 states to 81524 states and 126449 transitions.
[2021-12-06 23:24:02,209 INFO  L78                 Accepts]: Start accepts. Automaton has 81524 states and 126449 transitions. Word has length 10156
[2021-12-06 23:24:02,210 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 23:24:02,211 INFO  L470      AbstractCegarLoop]: Abstraction has 81524 states and 126449 transitions.
[2021-12-06 23:24:02,212 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3385.3333333333335) internal successors, (10156), 2 states have internal predecessors, (10156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:24:02,212 INFO  L276                IsEmpty]: Start isEmpty. Operand 81524 states and 126449 transitions.
[2021-12-06 23:24:02,927 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10158
[2021-12-06 23:24:02,927 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 23:24:02,932 INFO  L514         BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2021-12-06 23:24:02,933 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-12-06 23:24:02,933 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 23:24:02,933 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 23:24:02,935 INFO  L85        PathProgramCache]: Analyzing trace with hash -1069859350, now seen corresponding path program 1 times
[2021-12-06 23:24:02,936 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 23:24:02,936 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588901994]
[2021-12-06 23:24:02,936 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 23:24:02,937 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 23:24:03,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 23:24:13,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-12-06 23:24:13,586 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 23:24:13,586 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588901994]
[2021-12-06 23:24:13,586 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588901994] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 23:24:13,586 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 23:24:13,588 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 23:24:13,588 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120035332]
[2021-12-06 23:24:13,588 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 23:24:13,596 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 23:24:13,596 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 23:24:13,597 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 23:24:13,597 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 23:24:13,599 INFO  L87              Difference]: Start difference. First operand 81524 states and 126449 transitions. Second operand  has 3 states, 3 states have (on average 3384.3333333333335) internal successors, (10153), 2 states have internal predecessors, (10153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:24:38,200 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 23:24:38,200 INFO  L93              Difference]: Finished difference Result 244566 states and 379342 transitions.
[2021-12-06 23:24:38,201 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 23:24:38,202 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3384.3333333333335) internal successors, (10153), 2 states have internal predecessors, (10153), 0 states have call successors, (0), 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 10157
[2021-12-06 23:24:38,202 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 23:24:38,372 INFO  L225             Difference]: With dead ends: 244566
[2021-12-06 23:24:38,372 INFO  L226             Difference]: Without dead ends: 163044
[2021-12-06 23:24:38,408 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 23:24:38,410 INFO  L933         BasicCegarLoop]: 6554 mSDtfsCounter, 13060 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27577 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13060 SdHoareTripleChecker+Valid, 6603 SdHoareTripleChecker+Invalid, 40607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time
[2021-12-06 23:24:38,411 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [13060 Valid, 6603 Invalid, 40607 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27577 Invalid, 0 Unknown, 0 Unchecked, 23.8s Time]
[2021-12-06 23:24:38,500 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163044 states.
[2021-12-06 23:24:39,600 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163044 to 163044.
[2021-12-06 23:24:39,702 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163044 states, 163043 states have (on average 1.3997350392227816) internal successors, (228217), 163043 states have internal predecessors, (228217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:24:39,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163044 states to 163044 states and 228217 transitions.
[2021-12-06 23:24:39,895 INFO  L78                 Accepts]: Start accepts. Automaton has 163044 states and 228217 transitions. Word has length 10157
[2021-12-06 23:24:39,896 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 23:24:39,897 INFO  L470      AbstractCegarLoop]: Abstraction has 163044 states and 228217 transitions.
[2021-12-06 23:24:39,898 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3384.3333333333335) internal successors, (10153), 2 states have internal predecessors, (10153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:24:39,898 INFO  L276                IsEmpty]: Start isEmpty. Operand 163044 states and 228217 transitions.
[2021-12-06 23:24:40,842 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10161
[2021-12-06 23:24:40,843 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 23:24:40,847 INFO  L514         BasicCegarLoop]: trace histogram [3, 3, 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, 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[2021-12-06 23:24:40,848 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-12-06 23:24:40,848 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 23:24:40,848 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 23:24:40,851 INFO  L85        PathProgramCache]: Analyzing trace with hash -305290222, now seen corresponding path program 1 times
[2021-12-06 23:24:40,851 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 23:24:40,851 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835357989]
[2021-12-06 23:24:40,852 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 23:24:40,852 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 23:24:41,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 23:24:50,635 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-12-06 23:24:50,635 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 23:24:50,635 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835357989]
[2021-12-06 23:24:50,635 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835357989] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 23:24:50,635 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 23:24:50,637 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 23:24:50,637 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734664809]
[2021-12-06 23:24:50,637 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 23:24:50,644 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 23:24:50,644 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 23:24:50,644 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 23:24:50,644 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 23:24:50,646 INFO  L87              Difference]: Start difference. First operand 163044 states and 228217 transitions. Second operand  has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:25:16,015 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 23:25:16,015 INFO  L93              Difference]: Finished difference Result 489126 states and 684646 transitions.
[2021-12-06 23:25:16,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 23:25:16,016 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 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 10160
[2021-12-06 23:25:16,016 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 23:25:16,359 INFO  L225             Difference]: With dead ends: 489126
[2021-12-06 23:25:16,359 INFO  L226             Difference]: Without dead ends: 326084
[2021-12-06 23:25:16,419 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 23:25:16,420 INFO  L933         BasicCegarLoop]: 7230 mSDtfsCounter, 12256 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29482 mSolverCounterSat, 11755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12256 SdHoareTripleChecker+Valid, 7279 SdHoareTripleChecker+Invalid, 41237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11755 IncrementalHoareTripleChecker+Valid, 29482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time
[2021-12-06 23:25:16,421 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [12256 Valid, 7279 Invalid, 41237 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11755 Valid, 29482 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time]
[2021-12-06 23:25:16,609 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 326084 states.
[2021-12-06 23:25:18,962 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 326084 to 326084.
[2021-12-06 23:25:19,091 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 326084 states, 326083 states have (on average 1.3036159505401999) internal successors, (425087), 326083 states have internal predecessors, (425087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:25:19,649 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 326084 states to 326084 states and 425087 transitions.
[2021-12-06 23:25:19,649 INFO  L78                 Accepts]: Start accepts. Automaton has 326084 states and 425087 transitions. Word has length 10160
[2021-12-06 23:25:19,650 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 23:25:19,651 INFO  L470      AbstractCegarLoop]: Abstraction has 326084 states and 425087 transitions.
[2021-12-06 23:25:19,652 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:25:19,652 INFO  L276                IsEmpty]: Start isEmpty. Operand 326084 states and 425087 transitions.
[2021-12-06 23:25:20,557 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10163
[2021-12-06 23:25:20,557 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 23:25:20,561 INFO  L514         BasicCegarLoop]: trace histogram [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, 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[2021-12-06 23:25:20,561 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-12-06 23:25:20,561 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 23:25:20,561 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 23:25:20,564 INFO  L85        PathProgramCache]: Analyzing trace with hash 1677042521, now seen corresponding path program 1 times
[2021-12-06 23:25:20,564 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 23:25:20,564 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912003821]
[2021-12-06 23:25:20,568 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 23:25:20,568 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 23:25:21,349 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 23:25:30,218 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 23:25:30,218 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 23:25:30,219 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912003821]
[2021-12-06 23:25:30,219 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912003821] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 23:25:30,219 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 23:25:30,220 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 23:25:30,221 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617847103]
[2021-12-06 23:25:30,221 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 23:25:30,229 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 23:25:30,229 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 23:25:30,229 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 23:25:30,229 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 23:25:30,231 INFO  L87              Difference]: Start difference. First operand 326084 states and 425087 transitions. Second operand  has 3 states, 3 states have (on average 3387.3333333333335) internal successors, (10162), 2 states have internal predecessors, (10162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:25:53,246 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 23:25:53,246 INFO  L93              Difference]: Finished difference Result 815206 states and 1047360 transitions.
[2021-12-06 23:25:53,247 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 23:25:53,248 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3387.3333333333335) internal successors, (10162), 2 states have internal predecessors, (10162), 0 states have call successors, (0), 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 10162
[2021-12-06 23:25:53,248 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 23:25:53,762 INFO  L225             Difference]: With dead ends: 815206
[2021-12-06 23:25:53,762 INFO  L226             Difference]: Without dead ends: 489124
[2021-12-06 23:25:53,975 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 23:25:53,976 INFO  L933         BasicCegarLoop]: 8145 mSDtfsCounter, 11069 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28559 mSolverCounterSat, 7491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11069 SdHoareTripleChecker+Valid, 8194 SdHoareTripleChecker+Invalid, 36050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7491 IncrementalHoareTripleChecker+Valid, 28559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time
[2021-12-06 23:25:53,976 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [11069 Valid, 8194 Invalid, 36050 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7491 Valid, 28559 Invalid, 0 Unknown, 0 Unchecked, 21.0s Time]
[2021-12-06 23:25:54,218 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 489124 states.
[2021-12-06 23:25:57,906 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 489124 to 489124.
[2021-12-06 23:25:58,089 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 489124 states, 489123 states have (on average 1.2361246557614343) internal successors, (604617), 489123 states have internal predecessors, (604617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:25:58,806 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 489124 states to 489124 states and 604617 transitions.
[2021-12-06 23:25:58,806 INFO  L78                 Accepts]: Start accepts. Automaton has 489124 states and 604617 transitions. Word has length 10162
[2021-12-06 23:25:58,807 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 23:25:58,807 INFO  L470      AbstractCegarLoop]: Abstraction has 489124 states and 604617 transitions.
[2021-12-06 23:25:58,808 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3387.3333333333335) internal successors, (10162), 2 states have internal predecessors, (10162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:25:58,808 INFO  L276                IsEmpty]: Start isEmpty. Operand 489124 states and 604617 transitions.
[2021-12-06 23:25:59,967 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10192
[2021-12-06 23:25:59,967 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 23:25:59,969 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2021-12-06 23:25:59,969 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-12-06 23:25:59,969 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 23:25:59,970 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 23:25:59,971 INFO  L85        PathProgramCache]: Analyzing trace with hash -405521468, now seen corresponding path program 1 times
[2021-12-06 23:25:59,971 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 23:25:59,971 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683814474]
[2021-12-06 23:25:59,972 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 23:25:59,972 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 23:26:00,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 23:26:09,957 INFO  L134       CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 23:26:09,957 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 23:26:09,957 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683814474]
[2021-12-06 23:26:09,957 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683814474] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 23:26:09,958 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 23:26:09,959 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 23:26:09,959 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163243379]
[2021-12-06 23:26:09,959 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 23:26:09,964 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 23:26:09,964 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 23:26:09,965 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 23:26:09,965 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 23:26:09,967 INFO  L87              Difference]: Start difference. First operand 489124 states and 604617 transitions. Second operand  has 3 states, 3 states have (on average 3397.0) internal successors, (10191), 2 states have internal predecessors, (10191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:26:37,768 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 23:26:37,768 INFO  L93              Difference]: Finished difference Result 1467366 states and 1813846 transitions.
[2021-12-06 23:26:37,769 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 23:26:37,770 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3397.0) internal successors, (10191), 2 states have internal predecessors, (10191), 0 states have call successors, (0), 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 10191
[2021-12-06 23:26:37,770 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 23:26:38,960 INFO  L225             Difference]: With dead ends: 1467366
[2021-12-06 23:26:38,960 INFO  L226             Difference]: Without dead ends: 978244
[2021-12-06 23:26:39,131 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 23:26:39,132 INFO  L933         BasicCegarLoop]: 8088 mSDtfsCounter, 11323 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30806 mSolverCounterSat, 11046 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11323 SdHoareTripleChecker+Valid, 8137 SdHoareTripleChecker+Invalid, 41852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11046 IncrementalHoareTripleChecker+Valid, 30806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time
[2021-12-06 23:26:39,132 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [11323 Valid, 8137 Invalid, 41852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11046 Valid, 30806 Invalid, 0 Unknown, 0 Unchecked, 24.2s Time]
[2021-12-06 23:26:39,749 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 978244 states.
[2021-12-06 23:26:47,526 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 978244 to 978244.
[2021-12-06 23:26:47,872 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 978244 states, 978243 states have (on average 1.181077707686127) internal successors, (1155381), 978243 states have internal predecessors, (1155381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:26:49,505 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 978244 states to 978244 states and 1155381 transitions.
[2021-12-06 23:26:49,505 INFO  L78                 Accepts]: Start accepts. Automaton has 978244 states and 1155381 transitions. Word has length 10191
[2021-12-06 23:26:49,505 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 23:26:49,505 INFO  L470      AbstractCegarLoop]: Abstraction has 978244 states and 1155381 transitions.
[2021-12-06 23:26:49,507 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3397.0) internal successors, (10191), 2 states have internal predecessors, (10191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:26:49,507 INFO  L276                IsEmpty]: Start isEmpty. Operand 978244 states and 1155381 transitions.
[2021-12-06 23:26:51,292 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10282
[2021-12-06 23:26:51,292 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 23:26:51,293 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2021-12-06 23:26:51,294 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-12-06 23:26:51,294 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 23:26:51,294 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 23:26:51,295 INFO  L85        PathProgramCache]: Analyzing trace with hash -583012059, now seen corresponding path program 1 times
[2021-12-06 23:26:51,295 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 23:26:51,295 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027216385]
[2021-12-06 23:26:51,296 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 23:26:51,296 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 23:26:52,105 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 23:27:01,512 INFO  L134       CoverageAnalysis]: Checked inductivity of 139 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 23:27:01,512 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 23:27:01,513 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027216385]
[2021-12-06 23:27:01,513 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027216385] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 23:27:01,513 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 23:27:01,514 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 23:27:01,514 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136961960]
[2021-12-06 23:27:01,514 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 23:27:01,519 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 23:27:01,519 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 23:27:01,519 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 23:27:01,519 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 23:27:01,521 INFO  L87              Difference]: Start difference. First operand 978244 states and 1155381 transitions. Second operand  has 3 states, 3 states have (on average 3427.0) internal successors, (10281), 2 states have internal predecessors, (10281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:27:32,754 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 23:27:32,754 INFO  L93              Difference]: Finished difference Result 2934726 states and 3466138 transitions.
[2021-12-06 23:27:32,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 23:27:32,756 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3427.0) internal successors, (10281), 2 states have internal predecessors, (10281), 0 states have call successors, (0), 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 10281
[2021-12-06 23:27:32,757 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 23:27:35,327 INFO  L225             Difference]: With dead ends: 2934726
[2021-12-06 23:27:35,327 INFO  L226             Difference]: Without dead ends: 1956484
[2021-12-06 23:27:35,653 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 23:27:35,654 INFO  L933         BasicCegarLoop]: 6562 mSDtfsCounter, 12273 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30711 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12273 SdHoareTripleChecker+Valid, 6611 SdHoareTripleChecker+Invalid, 41212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 30711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time
[2021-12-06 23:27:35,654 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [12273 Valid, 6611 Invalid, 41212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 30711 Invalid, 0 Unknown, 0 Unchecked, 24.5s Time]
[2021-12-06 23:27:36,919 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1956484 states.
[2021-12-06 23:27:52,510 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956484 to 1956484.
[2021-12-06 23:27:53,510 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1956484 states, 1956483 states have (on average 1.1380057991814905) internal successors, (2226489), 1956483 states have internal predecessors, (2226489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:27:56,668 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1956484 states to 1956484 states and 2226489 transitions.
[2021-12-06 23:27:56,668 INFO  L78                 Accepts]: Start accepts. Automaton has 1956484 states and 2226489 transitions. Word has length 10281
[2021-12-06 23:27:56,669 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 23:27:56,669 INFO  L470      AbstractCegarLoop]: Abstraction has 1956484 states and 2226489 transitions.
[2021-12-06 23:27:56,670 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3427.0) internal successors, (10281), 2 states have internal predecessors, (10281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-06 23:27:56,670 INFO  L276                IsEmpty]: Start isEmpty. Operand 1956484 states and 2226489 transitions.
[2021-12-06 23:27:59,630 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10478
[2021-12-06 23:27:59,631 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 23:27:59,633 INFO  L514         BasicCegarLoop]: 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2021-12-06 23:27:59,633 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-12-06 23:27:59,633 INFO  L402      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 23:27:59,633 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 23:27:59,634 INFO  L85        PathProgramCache]: Analyzing trace with hash 368555326, now seen corresponding path program 1 times
[2021-12-06 23:27:59,634 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 23:27:59,634 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851488776]
[2021-12-06 23:27:59,635 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 23:27:59,635 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 23:28:00,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat