./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label16.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 906ffe58b832ff4e782e44c7c61dd77e381780d7da434142e07131413944f85b
--- 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
[2022-12-14 15:55:40,916 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-12-14 15:55:40,918 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-14 15:55:40,937 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-14 15:55:40,938 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-14 15:55:40,939 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-14 15:55:40,940 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-14 15:55:40,942 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-14 15:55:40,943 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-14 15:55:40,944 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-14 15:55:40,945 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-12-14 15:55:40,946 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-14 15:55:40,947 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-14 15:55:40,948 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-14 15:55:40,949 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-14 15:55:40,950 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-14 15:55:40,951 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-14 15:55:40,952 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-14 15:55:40,953 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-14 15:55:40,955 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-14 15:55:40,957 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-14 15:55:40,958 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-14 15:55:40,959 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-12-14 15:55:40,960 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-14 15:55:40,964 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-14 15:55:40,964 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-14 15:55:40,964 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-14 15:55:40,965 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-14 15:55:40,966 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-14 15:55:40,966 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-14 15:55:40,967 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-14 15:55:40,967 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-14 15:55:40,968 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-14 15:55:40,969 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-14 15:55:40,970 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-14 15:55:40,970 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-14 15:55:40,971 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-14 15:55:40,971 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-14 15:55:40,971 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-14 15:55:40,972 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-14 15:55:40,973 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-12-14 15:55:40,973 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf
[2022-12-14 15:55:40,994 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-12-14 15:55:40,995 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-14 15:55:40,995 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-14 15:55:40,995 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-14 15:55:40,996 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-14 15:55:40,996 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-14 15:55:40,996 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-12-14 15:55:40,996 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-12-14 15:55:40,997 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-12-14 15:55:40,997 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-12-14 15:55:40,997 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-12-14 15:55:40,997 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-12-14 15:55:40,997 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-12-14 15:55:40,998 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-12-14 15:55:40,998 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-12-14 15:55:40,998 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-12-14 15:55:40,998 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-12-14 15:55:40,998 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-12-14 15:55:40,999 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-14 15:55:40,999 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-12-14 15:55:40,999 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-12-14 15:55:41,000 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-12-14 15:55:41,000 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-12-14 15:55:41,000 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-12-14 15:55:41,000 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-14 15:55:41,000 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-12-14 15:55:41,001 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-12-14 15:55:41,001 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-12-14 15:55:41,001 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-12-14 15:55:41,001 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-12-14 15:55:41,001 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-14 15:55:41,002 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-12-14 15:55:41,002 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-14 15:55:41,002 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-14 15:55:41,002 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2022-12-14 15:55:41,002 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-12-14 15:55:41,003 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-14 15:55:41,003 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-12-14 15:55:41,003 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-14 15:55:41,003 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-12-14 15:55:41,003 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-12-14 15:55:41,004 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/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_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh
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 -> Taipan
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 -> 906ffe58b832ff4e782e44c7c61dd77e381780d7da434142e07131413944f85b
[2022-12-14 15:55:41,180 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-14 15:55:41,199 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-14 15:55:41,202 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-14 15:55:41,203 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-12-14 15:55:41,203 INFO  L275        PluginConnector]: CDTParser initialized
[2022-12-14 15:55:41,204 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/eca-programs/Problem101_label16.c
[2022-12-14 15:55:43,717 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-12-14 15:55:44,737 INFO  L351              CDTParser]: Found 1 translation units.
[2022-12-14 15:55:44,737 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/sv-benchmarks/c/eca-programs/Problem101_label16.c
[2022-12-14 15:55:44,864 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/data/a7a17c25d/d9043bd8b28d43d6b680d41f3282cd7e/FLAG8fd424666
[2022-12-14 15:55:45,276 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/data/a7a17c25d/d9043bd8b28d43d6b680d41f3282cd7e
[2022-12-14 15:55:45,278 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-14 15:55:45,280 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-14 15:55:45,281 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-14 15:55:45,281 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-14 15:55:45,284 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-14 15:55:45,285 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:55:45" (1/1) ...
[2022-12-14 15:55:45,286 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56212216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:45, skipping insertion in model container
[2022-12-14 15:55:45,286 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:55:45" (1/1) ...
[2022-12-14 15:55:45,292 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-12-14 15:55:45,826 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-12-14 15:55:55,518 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_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/sv-benchmarks/c/eca-programs/Problem101_label16.c[2767308,2767321]
[2022-12-14 15:55:55,580 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-14 15:55:55,587 INFO  L203         MainTranslator]: Completed pre-run
[2022-12-14 15:56:01,473 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_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/sv-benchmarks/c/eca-programs/Problem101_label16.c[2767308,2767321]
[2022-12-14 15:56:01,483 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-14 15:56:02,133 INFO  L208         MainTranslator]: Completed translation
[2022-12-14 15:56:02,133 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02 WrapperNode
[2022-12-14 15:56:02,133 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-14 15:56:02,134 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-14 15:56:02,134 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-14 15:56:02,134 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-14 15:56:02,139 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:02,445 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:03,920 INFO  L138                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83780
[2022-12-14 15:56:03,921 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-14 15:56:03,922 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-14 15:56:03,922 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-14 15:56:03,922 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-12-14 15:56:03,931 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:03,931 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:04,172 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:04,173 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:04,834 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:04,929 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:05,053 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:05,107 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:05,378 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-14 15:56:05,378 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-14 15:56:05,378 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-12-14 15:56:05,378 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-12-14 15:56:05,379 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (1/1) ...
[2022-12-14 15:56:05,385 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-14 15:56:05,393 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/z3
[2022-12-14 15:56:05,403 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-14 15:56:05,405 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca1bfd0b-e34f-4df2-be40-eb3ede61e5c5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-14 15:56:05,429 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-14 15:56:05,429 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-14 15:56:05,429 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-14 15:56:05,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-14 15:56:05,518 INFO  L235             CfgBuilder]: Building ICFG
[2022-12-14 15:56:05,519 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-14 15:56:37,047 INFO  L276             CfgBuilder]: Performing block encoding
[2022-12-14 15:56:37,789 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-14 15:56:37,789 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-12-14 15:56:37,797 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:56:37 BoogieIcfgContainer
[2022-12-14 15:56:37,797 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-14 15:56:37,799 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-14 15:56:37,799 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-12-14 15:56:37,801 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-12-14 15:56:37,801 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:55:45" (1/3) ...
[2022-12-14 15:56:37,802 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592cd22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:56:37, skipping insertion in model container
[2022-12-14 15:56:37,802 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:56:02" (2/3) ...
[2022-12-14 15:56:37,802 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592cd22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:56:37, skipping insertion in model container
[2022-12-14 15:56:37,803 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:56:37" (3/3) ...
[2022-12-14 15:56:37,804 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem101_label16.c
[2022-12-14 15:56:37,819 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-14 15:56:37,819 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-12-14 15:56:37,947 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-14 15:56:37,952 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=FINITE_AUTOMATA, 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;@27d3be40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-14 15:56:37,952 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-12-14 15:56:37,976 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10135 states, 10133 states have (on average 1.9951643146156124) internal successors, (20217), 10134 states have internal predecessors, (20217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 15:56:38,708 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10086
[2022-12-14 15:56:38,709 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-14 15:56:38,712 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]
[2022-12-14 15:56:38,713 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-14 15:56:38,728 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-14 15:56:38,731 INFO  L85        PathProgramCache]: Analyzing trace with hash 425022494, now seen corresponding path program 1 times
[2022-12-14 15:56:38,738 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-12-14 15:56:38,738 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477375029]
[2022-12-14 15:56:38,740 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-14 15:56:38,741 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-14 15:56:40,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-14 15:57:08,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-14 15:57:08,221 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-12-14 15:57:08,222 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477375029]
[2022-12-14 15:57:08,222 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477375029] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-14 15:57:08,222 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-14 15:57:08,225 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-14 15:57:08,227 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664232747]
[2022-12-14 15:57:08,227 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-14 15:57:08,255 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-14 15:57:08,256 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-12-14 15:57:08,296 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-14 15:57:08,297 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-14 15:57:08,317 INFO  L87              Difference]: Start difference. First operand  has 10135 states, 10133 states have (on average 1.9951643146156124) internal successors, (20217), 10134 states have internal predecessors, (20217), 0 states have call successors, (0), 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 3361.6666666666665) internal successors, (10085), 2 states have internal predecessors, (10085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 15:57:38,750 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-14 15:57:38,750 INFO  L93              Difference]: Finished difference Result 30401 states and 60647 transitions.
[2022-12-14 15:57:38,751 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-14 15:57:38,754 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3361.6666666666665) internal successors, (10085), 2 states have internal predecessors, (10085), 0 states have call successors, (0), 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 10085
[2022-12-14 15:57:38,769 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-14 15:57:38,825 INFO  L225             Difference]: With dead ends: 30401
[2022-12-14 15:57:38,825 INFO  L226             Difference]: Without dead ends: 20263
[2022-12-14 15:57:38,837 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
[2022-12-14 15:57:38,840 INFO  L413           NwaCegarLoop]: 4811 mSDtfsCounter, 3051 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 29400 mSolverCounterSat, 11205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 4861 SdHoareTripleChecker+Invalid, 40605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11205 IncrementalHoareTripleChecker+Valid, 29400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time
[2022-12-14 15:57:38,840 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3051 Valid, 4861 Invalid, 40605 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11205 Valid, 29400 Invalid, 0 Unknown, 0 Unchecked, 29.9s Time]
[2022-12-14 15:57:38,871 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20263 states.
[2022-12-14 15:57:39,140 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20263 to 20263.
[2022-12-14 15:57:39,169 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20263 states, 20262 states have (on average 1.7607837330964367) internal successors, (35677), 20262 states have internal predecessors, (35677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 15:57:39,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20263 states to 20263 states and 35677 transitions.
[2022-12-14 15:57:39,203 INFO  L78                 Accepts]: Start accepts. Automaton has 20263 states and 35677 transitions. Word has length 10085
[2022-12-14 15:57:39,213 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-14 15:57:39,213 INFO  L495      AbstractCegarLoop]: Abstraction has 20263 states and 35677 transitions.
[2022-12-14 15:57:39,215 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3361.6666666666665) internal successors, (10085), 2 states have internal predecessors, (10085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 15:57:39,216 INFO  L276                IsEmpty]: Start isEmpty. Operand 20263 states and 35677 transitions.
[2022-12-14 15:57:39,952 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10092
[2022-12-14 15:57:39,952 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-14 15:57:39,955 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-12-14 15:57:39,955 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-14 15:57:39,955 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-14 15:57:39,956 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-14 15:57:39,959 INFO  L85        PathProgramCache]: Analyzing trace with hash 2053123105, now seen corresponding path program 1 times
[2022-12-14 15:57:39,959 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-12-14 15:57:39,959 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394183995]
[2022-12-14 15:57:39,961 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-14 15:57:39,961 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-14 15:57:40,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-14 15:58:02,754 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-14 15:58:02,754 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-12-14 15:58:02,754 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394183995]
[2022-12-14 15:58:02,754 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394183995] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-14 15:58:02,754 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-14 15:58:02,755 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-14 15:58:02,756 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859661046]
[2022-12-14 15:58:02,756 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-14 15:58:02,767 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-14 15:58:02,767 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-12-14 15:58:02,778 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-14 15:58:02,778 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-14 15:58:02,783 INFO  L87              Difference]: Start difference. First operand 20263 states and 35677 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)
[2022-12-14 15:58:33,323 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-14 15:58:33,323 INFO  L93              Difference]: Finished difference Result 60785 states and 107028 transitions.
[2022-12-14 15:58:33,323 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-14 15:58:33,326 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
[2022-12-14 15:58:33,326 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-14 15:58:33,388 INFO  L225             Difference]: With dead ends: 60785
[2022-12-14 15:58:33,388 INFO  L226             Difference]: Without dead ends: 40523
[2022-12-14 15:58:33,400 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
[2022-12-14 15:58:33,400 INFO  L413           NwaCegarLoop]: 4816 mSDtfsCounter, 13625 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28708 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13625 SdHoareTripleChecker+Valid, 4864 SdHoareTripleChecker+Invalid, 40385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 28708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time
[2022-12-14 15:58:33,401 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13625 Valid, 4864 Invalid, 40385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 28708 Invalid, 0 Unknown, 0 Unchecked, 29.9s Time]
[2022-12-14 15:58:33,427 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40523 states.
[2022-12-14 15:58:33,890 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40523 to 40523.
[2022-12-14 15:58:33,945 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40523 states, 40522 states have (on average 1.5819554809732985) internal successors, (64104), 40522 states have internal predecessors, (64104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 15:58:33,988 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40523 states to 40523 states and 64104 transitions.
[2022-12-14 15:58:33,988 INFO  L78                 Accepts]: Start accepts. Automaton has 40523 states and 64104 transitions. Word has length 10091
[2022-12-14 15:58:33,990 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-14 15:58:33,990 INFO  L495      AbstractCegarLoop]: Abstraction has 40523 states and 64104 transitions.
[2022-12-14 15:58:33,991 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)
[2022-12-14 15:58:33,992 INFO  L276                IsEmpty]: Start isEmpty. Operand 40523 states and 64104 transitions.
[2022-12-14 15:58:34,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10120
[2022-12-14 15:58:34,589 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-14 15:58:34,592 INFO  L195           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2022-12-14 15:58:34,592 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-14 15:58:34,593 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-14 15:58:34,593 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-14 15:58:34,596 INFO  L85        PathProgramCache]: Analyzing trace with hash 1772985357, now seen corresponding path program 1 times
[2022-12-14 15:58:34,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-12-14 15:58:34,596 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288518448]
[2022-12-14 15:58:34,597 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-14 15:58:34,597 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-14 15:58:35,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-14 15:59:01,537 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-12-14 15:59:01,537 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-12-14 15:59:01,537 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288518448]
[2022-12-14 15:59:01,537 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288518448] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-14 15:59:01,537 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-14 15:59:01,538 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-14 15:59:01,538 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182177401]
[2022-12-14 15:59:01,538 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-14 15:59:01,543 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-14 15:59:01,543 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-12-14 15:59:01,547 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-14 15:59:01,548 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-14 15:59:01,550 INFO  L87              Difference]: Start difference. First operand 40523 states and 64104 transitions. Second operand  has 3 states, 3 states have (on average 3371.3333333333335) internal successors, (10114), 2 states have internal predecessors, (10114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 15:59:32,525 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-14 15:59:32,525 INFO  L93              Difference]: Finished difference Result 121565 states and 192309 transitions.
[2022-12-14 15:59:32,525 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-14 15:59:32,527 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3371.3333333333335) internal successors, (10114), 2 states have internal predecessors, (10114), 0 states have call successors, (0), 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 10119
[2022-12-14 15:59:32,527 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-14 15:59:32,604 INFO  L225             Difference]: With dead ends: 121565
[2022-12-14 15:59:32,604 INFO  L226             Difference]: Without dead ends: 81043
[2022-12-14 15:59:32,672 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
[2022-12-14 15:59:32,673 INFO  L413           NwaCegarLoop]: 9506 mSDtfsCounter, 10182 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 32436 mSolverCounterSat, 9364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10182 SdHoareTripleChecker+Valid, 9555 SdHoareTripleChecker+Invalid, 41800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9364 IncrementalHoareTripleChecker+Valid, 32436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time
[2022-12-14 15:59:32,673 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10182 Valid, 9555 Invalid, 41800 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9364 Valid, 32436 Invalid, 0 Unknown, 0 Unchecked, 30.3s Time]
[2022-12-14 15:59:32,708 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81043 states.
[2022-12-14 15:59:33,277 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81043 to 81043.
[2022-12-14 15:59:33,332 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81043 states, 81042 states have (on average 1.360726536857432) internal successors, (110276), 81042 states have internal predecessors, (110276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 15:59:33,417 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81043 states to 81043 states and 110276 transitions.
[2022-12-14 15:59:33,417 INFO  L78                 Accepts]: Start accepts. Automaton has 81043 states and 110276 transitions. Word has length 10119
[2022-12-14 15:59:33,418 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-14 15:59:33,418 INFO  L495      AbstractCegarLoop]: Abstraction has 81043 states and 110276 transitions.
[2022-12-14 15:59:33,419 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3371.3333333333335) internal successors, (10114), 2 states have internal predecessors, (10114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 15:59:33,419 INFO  L276                IsEmpty]: Start isEmpty. Operand 81043 states and 110276 transitions.
[2022-12-14 15:59:34,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10123
[2022-12-14 15:59:34,135 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-14 15:59:34,137 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-14 15:59:34,138 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-12-14 15:59:34,138 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-14 15:59:34,138 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-14 15:59:34,140 INFO  L85        PathProgramCache]: Analyzing trace with hash -755470728, now seen corresponding path program 1 times
[2022-12-14 15:59:34,140 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-12-14 15:59:34,140 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112866024]
[2022-12-14 15:59:34,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-14 15:59:34,141 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-14 15:59:35,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-14 15:59:58,574 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-14 15:59:58,574 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-12-14 15:59:58,574 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112866024]
[2022-12-14 15:59:58,574 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112866024] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-14 15:59:58,574 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-14 15:59:58,575 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-14 15:59:58,575 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274098629]
[2022-12-14 15:59:58,575 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-14 15:59:58,579 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-14 15:59:58,579 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-12-14 15:59:58,584 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-14 15:59:58,584 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-14 15:59:58,586 INFO  L87              Difference]: Start difference. First operand 81043 states and 110276 transitions. Second operand  has 3 states, 3 states have (on average 3374.0) internal successors, (10122), 2 states have internal predecessors, (10122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:00:27,865 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-14 16:00:27,865 INFO  L93              Difference]: Finished difference Result 243125 states and 330825 transitions.
[2022-12-14 16:00:27,866 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-14 16:00:27,867 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3374.0) internal successors, (10122), 2 states have internal predecessors, (10122), 0 states have call successors, (0), 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 10122
[2022-12-14 16:00:27,867 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-14 16:00:28,061 INFO  L225             Difference]: With dead ends: 243125
[2022-12-14 16:00:28,061 INFO  L226             Difference]: Without dead ends: 162083
[2022-12-14 16:00:28,095 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
[2022-12-14 16:00:28,096 INFO  L413           NwaCegarLoop]: 7742 mSDtfsCounter, 12028 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 27709 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12028 SdHoareTripleChecker+Valid, 7790 SdHoareTripleChecker+Invalid, 40739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time
[2022-12-14 16:00:28,096 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12028 Valid, 7790 Invalid, 40739 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27709 Invalid, 0 Unknown, 0 Unchecked, 28.3s Time]
[2022-12-14 16:00:28,183 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 162083 states.
[2022-12-14 16:00:29,335 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 162083 to 162083.
[2022-12-14 16:00:29,437 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 162083 states, 162082 states have (on average 1.260004195407263) internal successors, (204224), 162082 states have internal predecessors, (204224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:00:29,610 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 162083 states to 162083 states and 204224 transitions.
[2022-12-14 16:00:29,611 INFO  L78                 Accepts]: Start accepts. Automaton has 162083 states and 204224 transitions. Word has length 10122
[2022-12-14 16:00:29,611 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-14 16:00:29,612 INFO  L495      AbstractCegarLoop]: Abstraction has 162083 states and 204224 transitions.
[2022-12-14 16:00:29,613 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3374.0) internal successors, (10122), 2 states have internal predecessors, (10122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:00:29,613 INFO  L276                IsEmpty]: Start isEmpty. Operand 162083 states and 204224 transitions.
[2022-12-14 16:00:30,544 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10155
[2022-12-14 16:00:30,544 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-14 16:00:30,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-12-14 16:00:30,547 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-12-14 16:00:30,547 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-14 16:00:30,547 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-14 16:00:30,549 INFO  L85        PathProgramCache]: Analyzing trace with hash 1621193256, now seen corresponding path program 1 times
[2022-12-14 16:00:30,550 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-12-14 16:00:30,550 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894010887]
[2022-12-14 16:00:30,551 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-14 16:00:30,551 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-14 16:00:31,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-14 16:00:51,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 68 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-14 16:00:51,994 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-12-14 16:00:51,994 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894010887]
[2022-12-14 16:00:51,994 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894010887] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-14 16:00:51,994 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-14 16:00:51,995 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-14 16:00:51,995 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752771474]
[2022-12-14 16:00:51,995 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-14 16:00:52,001 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-14 16:00:52,001 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-12-14 16:00:52,005 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-14 16:00:52,005 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-14 16:00:52,007 INFO  L87              Difference]: Start difference. First operand 162083 states and 204224 transitions. Second operand  has 3 states, 3 states have (on average 3384.6666666666665) internal successors, (10154), 2 states have internal predecessors, (10154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:01:24,588 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-14 16:01:24,588 INFO  L93              Difference]: Finished difference Result 486245 states and 612669 transitions.
[2022-12-14 16:01:24,588 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-14 16:01:24,589 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3384.6666666666665) internal successors, (10154), 2 states have internal predecessors, (10154), 0 states have call successors, (0), 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 10154
[2022-12-14 16:01:24,589 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-14 16:01:24,955 INFO  L225             Difference]: With dead ends: 486245
[2022-12-14 16:01:24,955 INFO  L226             Difference]: Without dead ends: 324163
[2022-12-14 16:01:25,022 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
[2022-12-14 16:01:25,023 INFO  L413           NwaCegarLoop]: 6785 mSDtfsCounter, 12347 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 29149 mSolverCounterSat, 11755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12347 SdHoareTripleChecker+Valid, 6833 SdHoareTripleChecker+Invalid, 40904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11755 IncrementalHoareTripleChecker+Valid, 29149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time
[2022-12-14 16:01:25,023 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12347 Valid, 6833 Invalid, 40904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11755 Valid, 29149 Invalid, 0 Unknown, 0 Unchecked, 30.9s Time]
[2022-12-14 16:01:25,220 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 324163 states.
[2022-12-14 16:01:27,483 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 324163 to 324163.
[2022-12-14 16:01:27,682 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 324163 states, 324162 states have (on average 1.1973149227855209) internal successors, (388124), 324162 states have internal predecessors, (388124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:01:28,031 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 324163 states to 324163 states and 388124 transitions.
[2022-12-14 16:01:28,031 INFO  L78                 Accepts]: Start accepts. Automaton has 324163 states and 388124 transitions. Word has length 10154
[2022-12-14 16:01:28,032 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-14 16:01:28,032 INFO  L495      AbstractCegarLoop]: Abstraction has 324163 states and 388124 transitions.
[2022-12-14 16:01:28,034 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3384.6666666666665) internal successors, (10154), 2 states have internal predecessors, (10154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:01:28,034 INFO  L276                IsEmpty]: Start isEmpty. Operand 324163 states and 388124 transitions.
[2022-12-14 16:01:29,264 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10273
[2022-12-14 16:01:29,264 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-14 16:01:29,266 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2022-12-14 16:01:29,267 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-12-14 16:01:29,267 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-14 16:01:29,267 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-14 16:01:29,269 INFO  L85        PathProgramCache]: Analyzing trace with hash -650980927, now seen corresponding path program 1 times
[2022-12-14 16:01:29,269 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-12-14 16:01:29,269 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905202399]
[2022-12-14 16:01:29,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-14 16:01:29,270 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-14 16:01:30,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-14 16:01:50,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 186 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-14 16:01:50,913 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-12-14 16:01:50,913 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905202399]
[2022-12-14 16:01:50,913 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905202399] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-14 16:01:50,914 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-14 16:01:50,914 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-14 16:01:50,914 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338346364]
[2022-12-14 16:01:50,914 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-14 16:01:50,919 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-14 16:01:50,919 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-12-14 16:01:50,924 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-14 16:01:50,924 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-14 16:01:50,926 INFO  L87              Difference]: Start difference. First operand 324163 states and 388124 transitions. Second operand  has 3 states, 3 states have (on average 3424.0) internal successors, (10272), 2 states have internal predecessors, (10272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:02:22,439 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-14 16:02:22,439 INFO  L93              Difference]: Finished difference Result 972485 states and 1164369 transitions.
[2022-12-14 16:02:22,440 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-14 16:02:22,442 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3424.0) internal successors, (10272), 2 states have internal predecessors, (10272), 0 states have call successors, (0), 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 10272
[2022-12-14 16:02:22,442 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-14 16:02:23,144 INFO  L225             Difference]: With dead ends: 972485
[2022-12-14 16:02:23,144 INFO  L226             Difference]: Without dead ends: 648323
[2022-12-14 16:02:23,363 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
[2022-12-14 16:02:23,364 INFO  L413           NwaCegarLoop]: 8997 mSDtfsCounter, 10689 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 31560 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10689 SdHoareTripleChecker+Valid, 9045 SdHoareTripleChecker+Invalid, 42061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 31560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time
[2022-12-14 16:02:23,365 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10689 Valid, 9045 Invalid, 42061 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 31560 Invalid, 0 Unknown, 0 Unchecked, 28.7s Time]
[2022-12-14 16:02:23,727 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 648323 states.
[2022-12-14 16:02:28,518 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 648323 to 648323.
[2022-12-14 16:02:28,745 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 648323 states, 648322 states have (on average 1.1502833468554206) internal successors, (745754), 648322 states have internal predecessors, (745754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:02:29,838 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 648323 states to 648323 states and 745754 transitions.
[2022-12-14 16:02:29,838 INFO  L78                 Accepts]: Start accepts. Automaton has 648323 states and 745754 transitions. Word has length 10272
[2022-12-14 16:02:29,838 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-14 16:02:29,839 INFO  L495      AbstractCegarLoop]: Abstraction has 648323 states and 745754 transitions.
[2022-12-14 16:02:29,840 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3424.0) internal successors, (10272), 2 states have internal predecessors, (10272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:02:29,840 INFO  L276                IsEmpty]: Start isEmpty. Operand 648323 states and 745754 transitions.
[2022-12-14 16:02:31,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10642
[2022-12-14 16:02:31,081 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-14 16:02:31,083 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-14 16:02:31,083 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-12-14 16:02:31,084 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-14 16:02:31,084 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-14 16:02:31,086 INFO  L85        PathProgramCache]: Analyzing trace with hash -1487334345, now seen corresponding path program 1 times
[2022-12-14 16:02:31,086 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-12-14 16:02:31,086 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401076912]
[2022-12-14 16:02:31,087 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-14 16:02:31,087 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-14 16:02:32,331 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-14 16:02:55,731 INFO  L134       CoverageAnalysis]: Checked inductivity of 636 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2022-12-14 16:02:55,731 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-12-14 16:02:55,731 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401076912]
[2022-12-14 16:02:55,732 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401076912] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-14 16:02:55,732 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-14 16:02:55,733 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-14 16:02:55,733 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748156873]
[2022-12-14 16:02:55,733 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-14 16:02:55,737 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-14 16:02:55,737 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-12-14 16:02:55,744 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-14 16:02:55,744 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-14 16:02:55,746 INFO  L87              Difference]: Start difference. First operand 648323 states and 745754 transitions. Second operand  has 3 states, 3 states have (on average 3519.3333333333335) internal successors, (10558), 2 states have internal predecessors, (10558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:03:30,994 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-14 16:03:30,994 INFO  L93              Difference]: Finished difference Result 1944965 states and 2237259 transitions.
[2022-12-14 16:03:30,994 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-14 16:03:30,996 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3519.3333333333335) internal successors, (10558), 2 states have internal predecessors, (10558), 0 states have call successors, (0), 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 10641
[2022-12-14 16:03:30,996 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-14 16:03:32,521 INFO  L225             Difference]: With dead ends: 1944965
[2022-12-14 16:03:32,521 INFO  L226             Difference]: Without dead ends: 1296643
[2022-12-14 16:03:32,736 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
[2022-12-14 16:03:32,737 INFO  L413           NwaCegarLoop]: 5999 mSDtfsCounter, 12063 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 29744 mSolverCounterSat, 11034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12063 SdHoareTripleChecker+Valid, 6047 SdHoareTripleChecker+Invalid, 40778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11034 IncrementalHoareTripleChecker+Valid, 29744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time
[2022-12-14 16:03:32,737 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12063 Valid, 6047 Invalid, 40778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11034 Valid, 29744 Invalid, 0 Unknown, 0 Unchecked, 29.9s Time]
[2022-12-14 16:03:33,768 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1296643 states.
[2022-12-14 16:03:43,729 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296643 to 1296643.
[2022-12-14 16:03:44,148 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1296643 states, 1296642 states have (on average 1.1119877344710414) internal successors, (1441850), 1296642 states have internal predecessors, (1441850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:03:46,104 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1296643 states to 1296643 states and 1441850 transitions.
[2022-12-14 16:03:46,105 INFO  L78                 Accepts]: Start accepts. Automaton has 1296643 states and 1441850 transitions. Word has length 10641
[2022-12-14 16:03:46,106 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-14 16:03:46,106 INFO  L495      AbstractCegarLoop]: Abstraction has 1296643 states and 1441850 transitions.
[2022-12-14 16:03:46,108 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3519.3333333333335) internal successors, (10558), 2 states have internal predecessors, (10558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:03:46,108 INFO  L276                IsEmpty]: Start isEmpty. Operand 1296643 states and 1441850 transitions.
[2022-12-14 16:03:48,449 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11131
[2022-12-14 16:03:48,449 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-14 16:03:48,451 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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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]
[2022-12-14 16:03:48,451 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-12-14 16:03:48,451 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-14 16:03:48,451 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-14 16:03:48,452 INFO  L85        PathProgramCache]: Analyzing trace with hash -529869758, now seen corresponding path program 1 times
[2022-12-14 16:03:48,452 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-12-14 16:03:48,452 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403623762]
[2022-12-14 16:03:48,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-14 16:03:48,453 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-14 16:03:49,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-14 16:04:16,690 INFO  L134       CoverageAnalysis]: Checked inductivity of 1355 backedges. 1038 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked.
[2022-12-14 16:04:16,690 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-12-14 16:04:16,690 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403623762]
[2022-12-14 16:04:16,690 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403623762] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-14 16:04:16,690 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-14 16:04:16,691 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-14 16:04:16,691 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980448291]
[2022-12-14 16:04:16,691 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-14 16:04:16,695 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-14 16:04:16,695 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-12-14 16:04:16,699 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-14 16:04:16,699 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-14 16:04:16,701 INFO  L87              Difference]: Start difference. First operand 1296643 states and 1441850 transitions. Second operand  has 3 states, 3 states have (on average 3618.6666666666665) internal successors, (10856), 2 states have internal predecessors, (10856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-14 16:04:57,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-14 16:04:57,158 INFO  L93              Difference]: Finished difference Result 3859535 states and 4291869 transitions.
[2022-12-14 16:04:57,159 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-14 16:04:57,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3618.6666666666665) internal successors, (10856), 2 states have internal predecessors, (10856), 0 states have call successors, (0), 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 11130
[2022-12-14 16:04:57,161 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-14 16:05:00,436 INFO  L225             Difference]: With dead ends: 3859535
[2022-12-14 16:05:00,437 INFO  L226             Difference]: Without dead ends: 2562893
[2022-12-14 16:05:01,068 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
[2022-12-14 16:05:01,069 INFO  L413           NwaCegarLoop]: 5906 mSDtfsCounter, 9623 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 31675 mSolverCounterSat, 11564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9623 SdHoareTripleChecker+Valid, 5954 SdHoareTripleChecker+Invalid, 43239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11564 IncrementalHoareTripleChecker+Valid, 31675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time
[2022-12-14 16:05:01,069 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9623 Valid, 5954 Invalid, 43239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11564 Valid, 31675 Invalid, 0 Unknown, 0 Unchecked, 30.2s Time]
[2022-12-14 16:05:03,399 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2562893 states.
[2022-12-14 16:05:22,893 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562893 to 2562893.
[2022-12-14 16:05:23,775 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2562893 states, 2562892 states have (on average 1.0910096874936595) internal successors, (2796140), 2562892 states have internal predecessors, (2796140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)