./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label58.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label58.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb8c6fb78a6c59c8171e9d25b90d36665462463f181479f5752d9a3c7837cce7
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 19:29:55,684 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-12-13 19:29:55,686 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 19:29:55,704 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 19:29:55,704 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 19:29:55,705 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 19:29:55,706 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 19:29:55,707 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 19:29:55,709 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 19:29:55,710 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 19:29:55,710 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 19:29:55,711 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 19:29:55,712 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 19:29:55,713 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 19:29:55,714 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 19:29:55,715 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 19:29:55,715 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 19:29:55,716 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 19:29:55,718 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 19:29:55,719 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 19:29:55,721 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 19:29:55,722 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 19:29:55,723 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 19:29:55,723 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 19:29:55,727 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 19:29:55,727 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 19:29:55,728 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 19:29:55,728 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 19:29:55,729 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 19:29:55,730 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 19:29:55,730 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 19:29:55,731 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 19:29:55,732 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 19:29:55,732 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 19:29:55,733 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 19:29:55,733 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 19:29:55,734 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 19:29:55,734 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 19:29:55,734 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 19:29:55,735 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 19:29:55,736 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 19:29:55,737 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-12-13 19:29:55,756 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-12-13 19:29:55,756 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 19:29:55,757 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 19:29:55,757 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 19:29:55,757 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 19:29:55,758 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 19:29:55,758 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 19:29:55,758 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-12-13 19:29:55,758 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-12-13 19:29:55,759 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 19:29:55,759 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-12-13 19:29:55,759 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-12-13 19:29:55,759 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-12-13 19:29:55,759 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-12-13 19:29:55,759 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-12-13 19:29:55,760 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 19:29:55,760 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-12-13 19:29:55,760 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-12-13 19:29:55,760 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-12-13 19:29:55,760 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-12-13 19:29:55,760 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-12-13 19:29:55,761 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 19:29:55,761 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-12-13 19:29:55,761 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-12-13 19:29:55,761 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 19:29:55,762 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 19:29:55,762 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 19:29:55,762 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-13 19:29:55,762 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-12-13 19:29:55,762 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-13 19:29:55,762 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-13 19:29:55,763 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-12-13 19:29:55,763 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2022-12-13 19:29:55,763 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-12-13 19:29:55,763 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2022-12-13 19:29:55,763 INFO  L138        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb8c6fb78a6c59c8171e9d25b90d36665462463f181479f5752d9a3c7837cce7
[2022-12-13 19:29:55,969 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 19:29:55,987 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 19:29:55,989 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 19:29:55,990 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-12-13 19:29:55,990 INFO  L275        PluginConnector]: CDTParser initialized
[2022-12-13 19:29:55,991 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-rers2012/Problem07_label58.c
[2022-12-13 19:29:58,547 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-12-13 19:29:59,830 INFO  L351              CDTParser]: Found 1 translation units.
[2022-12-13 19:29:59,830 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/sv-benchmarks/c/eca-rers2012/Problem07_label58.c
[2022-12-13 19:29:59,952 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/data/fa89c7037/1679024da3d74d948074072d81fd326a/FLAGab78cdb37
[2022-12-13 19:30:00,121 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/data/fa89c7037/1679024da3d74d948074072d81fd326a
[2022-12-13 19:30:00,125 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 19:30:00,127 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 19:30:00,128 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 19:30:00,128 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 19:30:00,132 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 19:30:00,133 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:30:00" (1/1) ...
[2022-12-13 19:30:00,134 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7a3a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:00, skipping insertion in model container
[2022-12-13 19:30:00,134 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:30:00" (1/1) ...
[2022-12-13 19:30:00,138 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-12-13 19:30:00,724 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-12-13 19:30:10,330 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/sv-benchmarks/c/eca-rers2012/Problem07_label58.c[2766771,2766784]
[2022-12-13 19:30:10,387 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 19:30:10,394 INFO  L203         MainTranslator]: Completed pre-run
[2022-12-13 19:30:16,157 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/sv-benchmarks/c/eca-rers2012/Problem07_label58.c[2766771,2766784]
[2022-12-13 19:30:16,169 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 19:30:16,925 INFO  L208         MainTranslator]: Completed translation
[2022-12-13 19:30:16,925 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16 WrapperNode
[2022-12-13 19:30:16,925 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 19:30:16,926 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 19:30:16,926 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 19:30:16,926 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 19:30:16,932 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:17,264 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:18,538 INFO  L138                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773
[2022-12-13 19:30:18,539 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 19:30:18,539 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 19:30:18,539 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 19:30:18,540 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 19:30:18,549 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:18,550 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:18,794 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:18,795 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:19,312 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:19,498 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:19,585 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:19,636 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:19,894 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 19:30:19,895 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 19:30:19,895 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 19:30:19,895 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-12-13 19:30:19,896 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (1/1) ...
[2022-12-13 19:30:19,901 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 19:30:19,910 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 19:30:19,920 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 19:30:19,922 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d586cfb6-d983-4680-b700-894bdb1edc59/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 19:30:19,947 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 19:30:19,948 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-13 19:30:19,948 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 19:30:19,948 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 19:30:20,053 INFO  L235             CfgBuilder]: Building ICFG
[2022-12-13 19:30:20,055 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 19:30:52,218 INFO  L276             CfgBuilder]: Performing block encoding
[2022-12-13 19:30:52,260 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 19:30:52,260 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-12-13 19:30:52,268 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:30:52 BoogieIcfgContainer
[2022-12-13 19:30:52,268 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 19:30:52,270 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 19:30:52,270 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 19:30:52,272 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-12-13 19:30:52,273 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:30:00" (1/3) ...
[2022-12-13 19:30:52,273 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5746abb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:30:52, skipping insertion in model container
[2022-12-13 19:30:52,273 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:30:16" (2/3) ...
[2022-12-13 19:30:52,274 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5746abb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:30:52, skipping insertion in model container
[2022-12-13 19:30:52,274 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:30:52" (3/3) ...
[2022-12-13 19:30:52,275 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem07_label58.c
[2022-12-13 19:30:52,289 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 19:30:52,289 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-12-13 19:30:52,423 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 19:30:52,428 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@346323a7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 19:30:52,428 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-12-13 19:30:52,452 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)
[2022-12-13 19:30:53,035 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10087
[2022-12-13 19:30:53,036 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 19:30:53,039 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 19:30:53,041 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 19:30:53,045 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 19:30:53,048 INFO  L85        PathProgramCache]: Analyzing trace with hash -130090694, now seen corresponding path program 1 times
[2022-12-13 19:30:53,055 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 19:30:53,055 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835709579]
[2022-12-13 19:30:53,057 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 19:30:53,058 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 19:30:55,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 19:31:20,661 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 19:31:20,661 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 19:31:20,661 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835709579]
[2022-12-13 19:31:20,662 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835709579] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 19:31:20,662 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 19:31:20,663 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 19:31:20,664 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726282493]
[2022-12-13 19:31:20,664 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 19:31:20,674 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 19:31:20,675 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 19:31:20,702 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 19:31:20,703 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:31:20,721 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 3362.0) internal successors, (10086), 2 states have internal predecessors, (10086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:31:50,451 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 19:31:50,452 INFO  L93              Difference]: Finished difference Result 30705 states and 61134 transitions.
[2022-12-13 19:31:50,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 19:31:50,457 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3362.0) internal successors, (10086), 2 states have internal predecessors, (10086), 0 states have call successors, (0), 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 10086
[2022-12-13 19:31:50,473 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 19:31:50,536 INFO  L225             Difference]: With dead ends: 30705
[2022-12-13 19:31:50,537 INFO  L226             Difference]: Without dead ends: 20384
[2022-12-13 19:31:50,550 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:31:50,554 INFO  L413           NwaCegarLoop]: 3649 mSDtfsCounter, 939 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 32216 mSolverCounterSat, 10597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 3702 SdHoareTripleChecker+Invalid, 42813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10597 IncrementalHoareTripleChecker+Valid, 32216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time
[2022-12-13 19:31:50,555 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 3702 Invalid, 42813 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10597 Valid, 32216 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time]
[2022-12-13 19:31:50,587 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20384 states.
[2022-12-13 19:31:50,920 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 20384.
[2022-12-13 19:31:50,946 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20384 states, 20383 states have (on average 1.815434430652995) internal successors, (37004), 20383 states have internal predecessors, (37004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:31:50,978 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20384 states to 20384 states and 37004 transitions.
[2022-12-13 19:31:50,979 INFO  L78                 Accepts]: Start accepts. Automaton has 20384 states and 37004 transitions. Word has length 10086
[2022-12-13 19:31:50,988 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 19:31:50,989 INFO  L495      AbstractCegarLoop]: Abstraction has 20384 states and 37004 transitions.
[2022-12-13 19:31:50,991 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3362.0) internal successors, (10086), 2 states have internal predecessors, (10086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:31:50,991 INFO  L276                IsEmpty]: Start isEmpty. Operand 20384 states and 37004 transitions.
[2022-12-13 19:31:51,569 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10091
[2022-12-13 19:31:51,569 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 19:31:51,571 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-13 19:31:51,572 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-13 19:31:51,572 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 19:31:51,572 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 19:31:51,574 INFO  L85        PathProgramCache]: Analyzing trace with hash 888287586, now seen corresponding path program 1 times
[2022-12-13 19:31:51,574 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 19:31:51,575 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638015574]
[2022-12-13 19:31:51,576 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 19:31:51,576 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 19:31:52,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 19:32:11,021 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 19:32:11,021 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 19:32:11,021 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638015574]
[2022-12-13 19:32:11,021 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638015574] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 19:32:11,022 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 19:32:11,023 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 19:32:11,023 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570019938]
[2022-12-13 19:32:11,023 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 19:32:11,028 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 19:32:11,028 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 19:32:11,033 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 19:32:11,033 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:32:11,036 INFO  L87              Difference]: Start difference. First operand 20384 states and 37004 transitions. Second operand  has 3 states, 3 states have (on average 3363.3333333333335) internal successors, (10090), 2 states have internal predecessors, (10090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:32:40,490 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 19:32:40,491 INFO  L93              Difference]: Finished difference Result 61146 states and 111007 transitions.
[2022-12-13 19:32:40,491 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 19:32:40,493 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3363.3333333333335) internal successors, (10090), 2 states have internal predecessors, (10090), 0 states have call successors, (0), 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 10090
[2022-12-13 19:32:40,493 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 19:32:40,549 INFO  L225             Difference]: With dead ends: 61146
[2022-12-13 19:32:40,550 INFO  L226             Difference]: Without dead ends: 40764
[2022-12-13 19:32:40,565 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:32:40,565 INFO  L413           NwaCegarLoop]: 4828 mSDtfsCounter, 13865 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28700 mSolverCounterSat, 11758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13865 SdHoareTripleChecker+Valid, 4877 SdHoareTripleChecker+Invalid, 40458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11758 IncrementalHoareTripleChecker+Valid, 28700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time
[2022-12-13 19:32:40,566 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13865 Valid, 4877 Invalid, 40458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11758 Valid, 28700 Invalid, 0 Unknown, 0 Unchecked, 28.9s Time]
[2022-12-13 19:32:40,594 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40764 states.
[2022-12-13 19:32:40,954 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40764 to 40764.
[2022-12-13 19:32:40,985 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40764 states, 40763 states have (on average 1.6229669062630327) internal successors, (66157), 40763 states have internal predecessors, (66157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:32:41,030 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 66157 transitions.
[2022-12-13 19:32:41,031 INFO  L78                 Accepts]: Start accepts. Automaton has 40764 states and 66157 transitions. Word has length 10090
[2022-12-13 19:32:41,032 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 19:32:41,032 INFO  L495      AbstractCegarLoop]: Abstraction has 40764 states and 66157 transitions.
[2022-12-13 19:32:41,033 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3363.3333333333335) internal successors, (10090), 2 states have internal predecessors, (10090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:32:41,033 INFO  L276                IsEmpty]: Start isEmpty. Operand 40764 states and 66157 transitions.
[2022-12-13 19:32:41,611 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10092
[2022-12-13 19:32:41,611 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 19:32:41,613 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2022-12-13 19:32:41,614 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-13 19:32:41,614 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 19:32:41,614 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 19:32:41,616 INFO  L85        PathProgramCache]: Analyzing trace with hash -1115180798, now seen corresponding path program 1 times
[2022-12-13 19:32:41,616 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 19:32:41,616 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656045573]
[2022-12-13 19:32:41,617 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 19:32:41,617 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 19:32:42,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 19:32:59,982 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 19:32:59,982 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 19:32:59,982 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656045573]
[2022-12-13 19:32:59,983 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656045573] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 19:32:59,983 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 19:32:59,984 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 19:32:59,984 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834626256]
[2022-12-13 19:32:59,984 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 19:32:59,988 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 19:32:59,988 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 19:32:59,993 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 19:32:59,994 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:32:59,996 INFO  L87              Difference]: Start difference. First operand 40764 states and 66157 transitions. Second operand  has 3 states, 3 states have (on average 3363.6666666666665) internal successors, (10091), 2 states have internal predecessors, (10091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:33:27,325 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 19:33:27,325 INFO  L93              Difference]: Finished difference Result 122286 states and 198466 transitions.
[2022-12-13 19:33:27,325 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 19:33:27,326 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3363.6666666666665) internal successors, (10091), 2 states have internal predecessors, (10091), 0 states have call successors, (0), 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 10091
[2022-12-13 19:33:27,326 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 19:33:27,393 INFO  L225             Difference]: With dead ends: 122286
[2022-12-13 19:33:27,393 INFO  L226             Difference]: Without dead ends: 81524
[2022-12-13 19:33:27,411 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:33:27,412 INFO  L413           NwaCegarLoop]: 4823 mSDtfsCounter, 13686 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28825 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13686 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 40502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 28825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time
[2022-12-13 19:33:27,412 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13686 Valid, 4872 Invalid, 40502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 28825 Invalid, 0 Unknown, 0 Unchecked, 26.7s Time]
[2022-12-13 19:33:27,457 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81524 states.
[2022-12-13 19:33:27,971 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81524 to 81524.
[2022-12-13 19:33:28,029 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81524 states, 81523 states have (on average 1.4781472713222035) internal successors, (120503), 81523 states have internal predecessors, (120503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:33:28,120 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81524 states to 81524 states and 120503 transitions.
[2022-12-13 19:33:28,120 INFO  L78                 Accepts]: Start accepts. Automaton has 81524 states and 120503 transitions. Word has length 10091
[2022-12-13 19:33:28,121 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 19:33:28,121 INFO  L495      AbstractCegarLoop]: Abstraction has 81524 states and 120503 transitions.
[2022-12-13 19:33:28,122 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3363.6666666666665) internal successors, (10091), 2 states have internal predecessors, (10091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:33:28,122 INFO  L276                IsEmpty]: Start isEmpty. Operand 81524 states and 120503 transitions.
[2022-12-13 19:33:28,828 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10098
[2022-12-13 19:33:28,828 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 19:33:28,830 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-12-13 19:33:28,830 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-12-13 19:33:28,831 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 19:33:28,831 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 19:33:28,832 INFO  L85        PathProgramCache]: Analyzing trace with hash -569993691, now seen corresponding path program 1 times
[2022-12-13 19:33:28,833 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 19:33:28,833 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751664595]
[2022-12-13 19:33:28,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 19:33:28,834 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 19:33:29,833 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 19:33:47,935 INFO  L134       CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-12-13 19:33:47,935 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 19:33:47,935 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751664595]
[2022-12-13 19:33:47,935 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751664595] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 19:33:47,935 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 19:33:47,936 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 19:33:47,936 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139899171]
[2022-12-13 19:33:47,936 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 19:33:47,943 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 19:33:47,943 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 19:33:47,948 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 19:33:47,948 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:33:47,950 INFO  L87              Difference]: Start difference. First operand 81524 states and 120503 transitions. Second operand  has 3 states, 3 states have (on average 3364.6666666666665) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:34:18,091 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 19:34:18,091 INFO  L93              Difference]: Finished difference Result 244566 states and 361504 transitions.
[2022-12-13 19:34:18,092 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 19:34:18,093 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3364.6666666666665) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 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 10097
[2022-12-13 19:34:18,093 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 19:34:18,233 INFO  L225             Difference]: With dead ends: 244566
[2022-12-13 19:34:18,234 INFO  L226             Difference]: Without dead ends: 163044
[2022-12-13 19:34:18,266 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:34:18,267 INFO  L413           NwaCegarLoop]: 8617 mSDtfsCounter, 11070 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31006 mSolverCounterSat, 11008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11070 SdHoareTripleChecker+Valid, 8666 SdHoareTripleChecker+Invalid, 42014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11008 IncrementalHoareTripleChecker+Valid, 31006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time
[2022-12-13 19:34:18,267 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11070 Valid, 8666 Invalid, 42014 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11008 Valid, 31006 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time]
[2022-12-13 19:34:18,356 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163044 states.
[2022-12-13 19:34:19,401 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163044 to 163044.
[2022-12-13 19:34:19,505 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163044 states, 163043 states have (on average 1.3667253423943377) internal successors, (222835), 163043 states have internal predecessors, (222835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:34:19,685 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163044 states to 163044 states and 222835 transitions.
[2022-12-13 19:34:19,685 INFO  L78                 Accepts]: Start accepts. Automaton has 163044 states and 222835 transitions. Word has length 10097
[2022-12-13 19:34:19,686 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 19:34:19,686 INFO  L495      AbstractCegarLoop]: Abstraction has 163044 states and 222835 transitions.
[2022-12-13 19:34:19,687 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3364.6666666666665) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:34:19,687 INFO  L276                IsEmpty]: Start isEmpty. Operand 163044 states and 222835 transitions.
[2022-12-13 19:34:20,656 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10108
[2022-12-13 19:34:20,656 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 19:34:20,659 INFO  L195           NwaCegarLoop]: 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 19:34:20,659 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-12-13 19:34:20,659 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 19:34:20,660 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 19:34:20,661 INFO  L85        PathProgramCache]: Analyzing trace with hash 294524122, now seen corresponding path program 1 times
[2022-12-13 19:34:20,661 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 19:34:20,662 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652818824]
[2022-12-13 19:34:20,662 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 19:34:20,663 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 19:34:21,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 19:34:47,125 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 19:34:47,125 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 19:34:47,125 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652818824]
[2022-12-13 19:34:47,125 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652818824] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 19:34:47,126 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 19:34:47,126 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 19:34:47,126 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288347554]
[2022-12-13 19:34:47,127 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 19:34:47,131 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 19:34:47,131 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 19:34:47,136 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 19:34:47,136 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:34:47,138 INFO  L87              Difference]: Start difference. First operand 163044 states and 222835 transitions. Second operand  has 3 states, 3 states have (on average 3369.0) internal successors, (10107), 2 states have internal predecessors, (10107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:35:15,043 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 19:35:15,043 INFO  L93              Difference]: Finished difference Result 407606 states and 548036 transitions.
[2022-12-13 19:35:15,043 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 19:35:15,044 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3369.0) internal successors, (10107), 2 states have internal predecessors, (10107), 0 states have call successors, (0), 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 10107
[2022-12-13 19:35:15,045 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 19:35:15,293 INFO  L225             Difference]: With dead ends: 407606
[2022-12-13 19:35:15,293 INFO  L226             Difference]: Without dead ends: 244564
[2022-12-13 19:35:15,346 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:35:15,347 INFO  L413           NwaCegarLoop]: 9643 mSDtfsCounter, 10411 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29399 mSolverCounterSat, 7489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10411 SdHoareTripleChecker+Valid, 9692 SdHoareTripleChecker+Invalid, 36888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7489 IncrementalHoareTripleChecker+Valid, 29399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time
[2022-12-13 19:35:15,347 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10411 Valid, 9692 Invalid, 36888 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7489 Valid, 29399 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time]
[2022-12-13 19:35:15,480 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 244564 states.
[2022-12-13 19:35:17,262 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 244564 to 244564.
[2022-12-13 19:35:17,352 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 244564 states, 244563 states have (on average 1.2861348609560728) internal successors, (314541), 244563 states have internal predecessors, (314541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:35:17,741 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 244564 states to 244564 states and 314541 transitions.
[2022-12-13 19:35:17,741 INFO  L78                 Accepts]: Start accepts. Automaton has 244564 states and 314541 transitions. Word has length 10107
[2022-12-13 19:35:17,742 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 19:35:17,742 INFO  L495      AbstractCegarLoop]: Abstraction has 244564 states and 314541 transitions.
[2022-12-13 19:35:17,744 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3369.0) internal successors, (10107), 2 states have internal predecessors, (10107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:35:17,744 INFO  L276                IsEmpty]: Start isEmpty. Operand 244564 states and 314541 transitions.
[2022-12-13 19:35:18,637 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10124
[2022-12-13 19:35:18,637 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 19:35:18,639 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2022-12-13 19:35:18,639 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-12-13 19:35:18,639 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 19:35:18,640 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 19:35:18,642 INFO  L85        PathProgramCache]: Analyzing trace with hash -329680718, now seen corresponding path program 1 times
[2022-12-13 19:35:18,642 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 19:35:18,642 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183820133]
[2022-12-13 19:35:18,643 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 19:35:18,643 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 19:35:19,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 19:35:39,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 19:35:39,305 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 19:35:39,305 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183820133]
[2022-12-13 19:35:39,305 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183820133] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 19:35:39,305 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 19:35:39,306 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 19:35:39,306 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994998990]
[2022-12-13 19:35:39,306 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 19:35:39,310 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 19:35:39,310 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 19:35:39,315 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 19:35:39,315 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:35:39,317 INFO  L87              Difference]: Start difference. First operand 244564 states and 314541 transitions. Second operand  has 3 states, 3 states have (on average 3374.3333333333335) internal successors, (10123), 2 states have internal predecessors, (10123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:36:11,869 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 19:36:11,870 INFO  L93              Difference]: Finished difference Result 733686 states and 943618 transitions.
[2022-12-13 19:36:11,870 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 19:36:11,871 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3374.3333333333335) internal successors, (10123), 2 states have internal predecessors, (10123), 0 states have call successors, (0), 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 10123
[2022-12-13 19:36:11,871 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 19:36:12,359 INFO  L225             Difference]: With dead ends: 733686
[2022-12-13 19:36:12,359 INFO  L226             Difference]: Without dead ends: 489124
[2022-12-13 19:36:12,442 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:36:12,443 INFO  L413           NwaCegarLoop]: 5700 mSDtfsCounter, 13739 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27430 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13739 SdHoareTripleChecker+Valid, 5749 SdHoareTripleChecker+Invalid, 40460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time
[2022-12-13 19:36:12,443 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13739 Valid, 5749 Invalid, 40460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27430 Invalid, 0 Unknown, 0 Unchecked, 30.3s Time]
[2022-12-13 19:36:12,734 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 489124 states.
[2022-12-13 19:36:16,541 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 489124 to 489124.
[2022-12-13 19:36:16,724 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 489124 states, 489123 states have (on average 1.2033353573640986) internal successors, (588579), 489123 states have internal predecessors, (588579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:36:17,495 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 489124 states to 489124 states and 588579 transitions.
[2022-12-13 19:36:17,495 INFO  L78                 Accepts]: Start accepts. Automaton has 489124 states and 588579 transitions. Word has length 10123
[2022-12-13 19:36:17,496 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 19:36:17,496 INFO  L495      AbstractCegarLoop]: Abstraction has 489124 states and 588579 transitions.
[2022-12-13 19:36:17,497 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3374.3333333333335) internal successors, (10123), 2 states have internal predecessors, (10123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:36:17,497 INFO  L276                IsEmpty]: Start isEmpty. Operand 489124 states and 588579 transitions.
[2022-12-13 19:36:18,549 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10227
[2022-12-13 19:36:18,550 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 19:36:18,551 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-12-13 19:36:18,551 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-12-13 19:36:18,552 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 19:36:18,552 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 19:36:18,553 INFO  L85        PathProgramCache]: Analyzing trace with hash 514337934, now seen corresponding path program 1 times
[2022-12-13 19:36:18,553 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 19:36:18,554 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180649976]
[2022-12-13 19:36:18,554 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 19:36:18,554 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 19:36:19,563 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 19:36:38,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 139 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 19:36:38,901 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 19:36:38,901 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180649976]
[2022-12-13 19:36:38,901 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180649976] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 19:36:38,901 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 19:36:38,902 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 19:36:38,902 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60783693]
[2022-12-13 19:36:38,902 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 19:36:38,908 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 19:36:38,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 19:36:38,912 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 19:36:38,912 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:36:38,914 INFO  L87              Difference]: Start difference. First operand 489124 states and 588579 transitions. Second operand  has 3 states, 3 states have (on average 3408.6666666666665) internal successors, (10226), 2 states have internal predecessors, (10226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:37:11,960 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 19:37:11,961 INFO  L93              Difference]: Finished difference Result 1467366 states and 1765732 transitions.
[2022-12-13 19:37:11,961 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 19:37:11,962 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3408.6666666666665) internal successors, (10226), 2 states have internal predecessors, (10226), 0 states have call successors, (0), 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 10226
[2022-12-13 19:37:11,963 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 19:37:13,092 INFO  L225             Difference]: With dead ends: 1467366
[2022-12-13 19:37:13,092 INFO  L226             Difference]: Without dead ends: 978244
[2022-12-13 19:37:13,457 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:37:13,458 INFO  L413           NwaCegarLoop]: 7703 mSDtfsCounter, 11600 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31179 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11600 SdHoareTripleChecker+Valid, 7752 SdHoareTripleChecker+Invalid, 41680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 31179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time
[2022-12-13 19:37:13,458 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11600 Valid, 7752 Invalid, 41680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 31179 Invalid, 0 Unknown, 0 Unchecked, 29.0s Time]
[2022-12-13 19:37:14,039 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 978244 states.
[2022-12-13 19:37:21,426 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 978244 to 978244.
[2022-12-13 19:37:21,746 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 978244 states, 978243 states have (on average 1.154575090238315) internal successors, (1129455), 978243 states have internal predecessors, (1129455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:37:23,365 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 978244 states to 978244 states and 1129455 transitions.
[2022-12-13 19:37:23,365 INFO  L78                 Accepts]: Start accepts. Automaton has 978244 states and 1129455 transitions. Word has length 10226
[2022-12-13 19:37:23,366 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 19:37:23,366 INFO  L495      AbstractCegarLoop]: Abstraction has 978244 states and 1129455 transitions.
[2022-12-13 19:37:23,367 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3408.6666666666665) internal successors, (10226), 2 states have internal predecessors, (10226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:37:23,367 INFO  L276                IsEmpty]: Start isEmpty. Operand 978244 states and 1129455 transitions.
[2022-12-13 19:37:25,314 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10532
[2022-12-13 19:37:25,314 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 19:37:25,316 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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]
[2022-12-13 19:37:25,316 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-12-13 19:37:25,316 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 19:37:25,317 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 19:37:25,318 INFO  L85        PathProgramCache]: Analyzing trace with hash -1729699771, now seen corresponding path program 1 times
[2022-12-13 19:37:25,318 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 19:37:25,318 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017528723]
[2022-12-13 19:37:25,319 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 19:37:25,319 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 19:37:26,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 19:37:48,165 INFO  L134       CoverageAnalysis]: Checked inductivity of 667 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked.
[2022-12-13 19:37:48,165 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 19:37:48,165 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017528723]
[2022-12-13 19:37:48,165 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017528723] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 19:37:48,165 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 19:37:48,166 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 19:37:48,166 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179845540]
[2022-12-13 19:37:48,166 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 19:37:48,170 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 19:37:48,170 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 19:37:48,174 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 19:37:48,174 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:37:48,176 INFO  L87              Difference]: Start difference. First operand 978244 states and 1129455 transitions. Second operand  has 3 states, 3 states have (on average 3458.3333333333335) internal successors, (10375), 2 states have internal predecessors, (10375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:38:24,592 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 19:38:24,592 INFO  L93              Difference]: Finished difference Result 2445606 states and 2808118 transitions.
[2022-12-13 19:38:24,593 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 19:38:24,594 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3458.3333333333335) internal successors, (10375), 2 states have internal predecessors, (10375), 0 states have call successors, (0), 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 10531
[2022-12-13 19:38:24,594 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 19:38:26,469 INFO  L225             Difference]: With dead ends: 2445606
[2022-12-13 19:38:26,469 INFO  L226             Difference]: Without dead ends: 1467364
[2022-12-13 19:38:26,740 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:38:26,741 INFO  L413           NwaCegarLoop]: 5131 mSDtfsCounter, 10928 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30114 mSolverCounterSat, 10732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10928 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 40846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10732 IncrementalHoareTripleChecker+Valid, 30114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time
[2022-12-13 19:38:26,741 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10928 Valid, 5180 Invalid, 40846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10732 Valid, 30114 Invalid, 0 Unknown, 0 Unchecked, 29.8s Time]
[2022-12-13 19:38:27,993 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1467364 states.
[2022-12-13 19:38:39,754 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467364 to 1467364.
[2022-12-13 19:38:40,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1467364 states, 1467363 states have (on average 1.099439606968419) internal successors, (1613277), 1467363 states have internal predecessors, (1613277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:38:42,267 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1467364 states to 1467364 states and 1613277 transitions.
[2022-12-13 19:38:42,267 INFO  L78                 Accepts]: Start accepts. Automaton has 1467364 states and 1613277 transitions. Word has length 10531
[2022-12-13 19:38:42,267 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 19:38:42,267 INFO  L495      AbstractCegarLoop]: Abstraction has 1467364 states and 1613277 transitions.
[2022-12-13 19:38:42,269 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3458.3333333333335) internal successors, (10375), 2 states have internal predecessors, (10375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:38:42,269 INFO  L276                IsEmpty]: Start isEmpty. Operand 1467364 states and 1613277 transitions.
[2022-12-13 19:38:44,724 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10533
[2022-12-13 19:38:44,724 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 19:38:44,726 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2022-12-13 19:38:44,726 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-12-13 19:38:44,726 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 19:38:44,727 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 19:38:44,728 INFO  L85        PathProgramCache]: Analyzing trace with hash -1680926954, now seen corresponding path program 1 times
[2022-12-13 19:38:44,728 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 19:38:44,728 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941166302]
[2022-12-13 19:38:44,729 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 19:38:44,729 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 19:38:45,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 19:39:11,184 INFO  L134       CoverageAnalysis]: Checked inductivity of 464 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2022-12-13 19:39:11,184 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 19:39:11,184 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941166302]
[2022-12-13 19:39:11,184 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941166302] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 19:39:11,184 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 19:39:11,185 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 19:39:11,185 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048915458]
[2022-12-13 19:39:11,185 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 19:39:11,189 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 19:39:11,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 19:39:11,193 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 19:39:11,193 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:39:11,195 INFO  L87              Difference]: Start difference. First operand 1467364 states and 1613277 transitions. Second operand  has 3 states, 3 states have (on average 3504.0) internal successors, (10512), 2 states have internal predecessors, (10512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 19:39:45,582 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 19:39:45,582 INFO  L93              Difference]: Finished difference Result 2934726 states and 3226552 transitions.
[2022-12-13 19:39:45,583 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 19:39:45,585 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3504.0) internal successors, (10512), 2 states have internal predecessors, (10512), 0 states have call successors, (0), 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 10532
[2022-12-13 19:39:45,585 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 19:39:47,443 INFO  L225             Difference]: With dead ends: 2934726
[2022-12-13 19:39:47,443 INFO  L226             Difference]: Without dead ends: 1467364
[2022-12-13 19:39:47,795 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 19:39:47,795 INFO  L413           NwaCegarLoop]: 9969 mSDtfsCounter, 9850 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30717 mSolverCounterSat, 3970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9850 SdHoareTripleChecker+Valid, 10018 SdHoareTripleChecker+Invalid, 34687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3970 IncrementalHoareTripleChecker+Valid, 30717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time
[2022-12-13 19:39:47,796 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9850 Valid, 10018 Invalid, 34687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3970 Valid, 30717 Invalid, 0 Unknown, 0 Unchecked, 27.3s Time]
[2022-12-13 19:39:49,093 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1467364 states.