./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem05_label27.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 6b4ec56b
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem05_label27.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27d9513298c2d91bcc5eebbf6720b0636de12051660f20eee9d0e3eb32b55c46
--- 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-6b4ec56
[2022-11-20 11:34:49,778 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-20 11:34:49,780 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-20 11:34:49,820 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-20 11:34:49,821 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-20 11:34:49,826 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-20 11:34:49,849 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-20 11:34:49,851 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-20 11:34:49,853 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-20 11:34:49,854 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-20 11:34:49,855 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-20 11:34:49,856 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-20 11:34:49,857 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-20 11:34:49,858 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-20 11:34:49,859 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-20 11:34:49,861 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-20 11:34:49,862 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-20 11:34:49,863 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-20 11:34:49,865 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-20 11:34:49,867 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-20 11:34:49,869 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-20 11:34:49,871 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-20 11:34:49,884 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-20 11:34:49,885 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-20 11:34:49,889 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-20 11:34:49,890 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-20 11:34:49,890 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-20 11:34:49,892 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-20 11:34:49,892 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-20 11:34:49,893 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-20 11:34:49,894 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-20 11:34:49,895 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-20 11:34:49,896 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-20 11:34:49,897 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-20 11:34:49,898 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-20 11:34:49,899 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-20 11:34:49,900 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-20 11:34:49,900 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-20 11:34:49,900 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-20 11:34:49,902 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-20 11:34:49,902 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-20 11:34:49,904 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-20 11:34:49,931 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-20 11:34:49,932 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-20 11:34:49,932 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-20 11:34:49,933 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-20 11:34:49,933 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-20 11:34:49,934 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-20 11:34:49,935 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-20 11:34:49,935 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-20 11:34:49,935 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-11-20 11:34:49,936 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-20 11:34:49,936 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-11-20 11:34:49,936 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-20 11:34:49,937 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-11-20 11:34:49,937 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-20 11:34:49,937 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-20 11:34:49,937 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-20 11:34:49,938 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-20 11:34:49,938 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-11-20 11:34:49,938 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-20 11:34:49,939 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-20 11:34:49,939 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-20 11:34:49,939 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-20 11:34:49,940 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-20 11:34:49,940 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-20 11:34:49,940 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-20 11:34:49,940 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-20 11:34:49,941 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-20 11:34:49,941 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-20 11:34:49,941 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-11-20 11:34:49,942 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-20 11:34:49,942 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-20 11:34:49,942 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-20 11:34:49,942 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-20 11:34:49,943 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_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/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_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27d9513298c2d91bcc5eebbf6720b0636de12051660f20eee9d0e3eb32b55c46
[2022-11-20 11:34:50,405 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-20 11:34:50,456 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-20 11:34:50,459 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-20 11:34:50,461 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-20 11:34:50,461 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-20 11:34:50,463 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/eca-rers2012/Problem05_label27.c
[2022-11-20 11:34:54,360 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-11-20 11:34:55,182 INFO  L351              CDTParser]: Found 1 translation units.
[2022-11-20 11:34:55,183 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/sv-benchmarks/c/eca-rers2012/Problem05_label27.c
[2022-11-20 11:34:55,241 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/data/1a5011401/1c14e07ef1a24394ad984191293d1a33/FLAGb16f9eb1d
[2022-11-20 11:34:55,310 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/data/1a5011401/1c14e07ef1a24394ad984191293d1a33
[2022-11-20 11:34:55,316 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-20 11:34:55,318 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-20 11:34:55,333 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-20 11:34:55,334 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-20 11:34:55,339 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-20 11:34:55,340 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:34:55" (1/1) ...
[2022-11-20 11:34:55,341 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4e15c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:55, skipping insertion in model container
[2022-11-20 11:34:55,341 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:34:55" (1/1) ...
[2022-11-20 11:34:55,359 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-20 11:34:55,660 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-20 11:34:58,472 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_4e8d1040-a383-442a-b922-721f69298544/sv-benchmarks/c/eca-rers2012/Problem05_label27.c[379031,379044]
[2022-11-20 11:34:58,502 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-20 11:34:58,517 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-20 11:34:59,972 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_4e8d1040-a383-442a-b922-721f69298544/sv-benchmarks/c/eca-rers2012/Problem05_label27.c[379031,379044]
[2022-11-20 11:34:59,980 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-20 11:35:00,046 INFO  L208         MainTranslator]: Completed translation
[2022-11-20 11:35:00,047 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00 WrapperNode
[2022-11-20 11:35:00,047 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-20 11:35:00,048 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-20 11:35:00,049 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-20 11:35:00,049 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-20 11:35:00,058 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:00,221 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:00,720 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12346
[2022-11-20 11:35:00,721 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-20 11:35:00,722 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-20 11:35:00,722 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-20 11:35:00,722 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-20 11:35:00,734 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:00,734 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:00,819 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:00,820 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:01,173 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:01,224 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:01,244 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:01,262 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:01,329 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-20 11:35:01,331 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-20 11:35:01,333 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-20 11:35:01,333 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-20 11:35:01,334 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (1/1) ...
[2022-11-20 11:35:01,343 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-20 11:35:01,357 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/z3
[2022-11-20 11:35:01,376 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-20 11:35:01,388 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e8d1040-a383-442a-b922-721f69298544/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-20 11:35:01,437 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-20 11:35:01,437 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-20 11:35:01,437 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-20 11:35:01,438 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-20 11:35:01,602 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-20 11:35:01,604 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-20 11:35:12,896 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-20 11:35:12,937 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-20 11:35:12,938 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-20 11:35:12,945 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:12 BoogieIcfgContainer
[2022-11-20 11:35:12,945 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-20 11:35:12,951 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-20 11:35:12,951 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-20 11:35:12,955 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-20 11:35:12,955 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:34:55" (1/3) ...
[2022-11-20 11:35:12,958 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c47d1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:12, skipping insertion in model container
[2022-11-20 11:35:12,958 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:00" (2/3) ...
[2022-11-20 11:35:12,959 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c47d1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:12, skipping insertion in model container
[2022-11-20 11:35:12,960 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:12" (3/3) ...
[2022-11-20 11:35:12,965 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label27.c
[2022-11-20 11:35:12,989 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-20 11:35:12,989 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-20 11:35:13,131 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-20 11:35:13,143 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1fc045c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-20 11:35:13,144 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-20 11:35:13,160 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:35:13,365 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1669
[2022-11-20 11:35:13,366 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:35:13,370 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-20 11:35:13,371 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:35:13,382 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:35:13,384 INFO  L85        PathProgramCache]: Analyzing trace with hash 959611602, now seen corresponding path program 1 times
[2022-11-20 11:35:13,397 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:35:13,398 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481334892]
[2022-11-20 11:35:13,399 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:35:13,400 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:35:14,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:35:19,962 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-20 11:35:19,963 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:35:19,964 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481334892]
[2022-11-20 11:35:19,966 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481334892] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:35:19,966 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:35:19,967 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-20 11:35:19,969 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211587117]
[2022-11-20 11:35:19,971 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:35:19,983 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:35:19,985 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:35:20,035 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:35:20,037 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:35:20,046 INFO  L87              Difference]: Start difference. First operand  has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:35:31,210 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:35:31,211 INFO  L93              Difference]: Finished difference Result 6175 states and 11683 transitions.
[2022-11-20 11:35:31,212 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:35:31,214 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 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 1668
[2022-11-20 11:35:31,222 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:35:31,268 INFO  L225             Difference]: With dead ends: 6175
[2022-11-20 11:35:31,268 INFO  L226             Difference]: Without dead ends: 3926
[2022-11-20 11:35:31,281 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:35:31,285 INFO  L413           NwaCegarLoop]: 1246 mSDtfsCounter, 489 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 5698 mSolverCounterSat, 1714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 7412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1714 IncrementalHoareTripleChecker+Valid, 5698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time
[2022-11-20 11:35:31,286 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1421 Invalid, 7412 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1714 Valid, 5698 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time]
[2022-11-20 11:35:31,316 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3926 states.
[2022-11-20 11:35:31,475 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3926 to 3906.
[2022-11-20 11:35:31,488 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3906 states, 3905 states have (on average 1.7426376440460947) internal successors, (6805), 3905 states have internal predecessors, (6805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:35:31,507 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3906 states to 3906 states and 6805 transitions.
[2022-11-20 11:35:31,509 INFO  L78                 Accepts]: Start accepts. Automaton has 3906 states and 6805 transitions. Word has length 1668
[2022-11-20 11:35:31,514 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-20 11:35:31,515 INFO  L495      AbstractCegarLoop]: Abstraction has 3906 states and 6805 transitions.
[2022-11-20 11:35:31,516 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:35:31,517 INFO  L276                IsEmpty]: Start isEmpty. Operand 3906 states and 6805 transitions.
[2022-11-20 11:35:31,587 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1674
[2022-11-20 11:35:31,591 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:35:31,595 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-20 11:35:31,596 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-20 11:35:31,596 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:35:31,597 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:35:31,599 INFO  L85        PathProgramCache]: Analyzing trace with hash -2036938770, now seen corresponding path program 1 times
[2022-11-20 11:35:31,599 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:35:31,600 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019954596]
[2022-11-20 11:35:31,601 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:35:31,601 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:35:32,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:35:33,971 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-20 11:35:33,973 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:35:33,973 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019954596]
[2022-11-20 11:35:33,974 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019954596] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:35:33,975 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:35:33,976 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-20 11:35:33,976 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110770242]
[2022-11-20 11:35:33,976 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:35:33,982 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:35:33,982 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:35:33,983 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:35:33,983 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:35:33,985 INFO  L87              Difference]: Start difference. First operand 3906 states and 6805 transitions. Second operand  has 3 states, 3 states have (on average 557.6666666666666) internal successors, (1673), 2 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:35:44,494 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:35:44,495 INFO  L93              Difference]: Finished difference Result 11354 states and 19932 transitions.
[2022-11-20 11:35:44,495 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:35:44,498 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 557.6666666666666) internal successors, (1673), 2 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1673
[2022-11-20 11:35:44,499 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:35:44,537 INFO  L225             Difference]: With dead ends: 11354
[2022-11-20 11:35:44,537 INFO  L226             Difference]: Without dead ends: 7450
[2022-11-20 11:35:44,553 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:35:44,556 INFO  L413           NwaCegarLoop]: 1352 mSDtfsCounter, 1996 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 5244 mSolverCounterSat, 2353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 7597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2353 IncrementalHoareTripleChecker+Valid, 5244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time
[2022-11-20 11:35:44,557 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 1575 Invalid, 7597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2353 Valid, 5244 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time]
[2022-11-20 11:35:44,570 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7450 states.
[2022-11-20 11:35:44,710 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7450 to 7366.
[2022-11-20 11:35:44,726 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7366 states, 7365 states have (on average 1.6092328581126951) internal successors, (11852), 7365 states have internal predecessors, (11852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:35:44,743 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7366 states to 7366 states and 11852 transitions.
[2022-11-20 11:35:44,743 INFO  L78                 Accepts]: Start accepts. Automaton has 7366 states and 11852 transitions. Word has length 1673
[2022-11-20 11:35:44,744 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-20 11:35:44,744 INFO  L495      AbstractCegarLoop]: Abstraction has 7366 states and 11852 transitions.
[2022-11-20 11:35:44,745 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 557.6666666666666) internal successors, (1673), 2 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:35:44,745 INFO  L276                IsEmpty]: Start isEmpty. Operand 7366 states and 11852 transitions.
[2022-11-20 11:35:44,786 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1682
[2022-11-20 11:35:44,787 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:35:44,788 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2022-11-20 11:35:44,789 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-20 11:35:44,789 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:35:44,790 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:35:44,791 INFO  L85        PathProgramCache]: Analyzing trace with hash -2111940100, now seen corresponding path program 1 times
[2022-11-20 11:35:44,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:35:44,791 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090830274]
[2022-11-20 11:35:44,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:35:44,792 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:35:45,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:35:47,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-11-20 11:35:47,023 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:35:47,023 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090830274]
[2022-11-20 11:35:47,024 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090830274] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:35:47,024 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:35:47,024 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-20 11:35:47,025 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494212569]
[2022-11-20 11:35:47,025 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:35:47,027 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:35:47,028 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:35:47,028 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:35:47,029 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:35:47,030 INFO  L87              Difference]: Start difference. First operand 7366 states and 11852 transitions. Second operand  has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:35:56,361 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:35:56,361 INFO  L93              Difference]: Finished difference Result 21538 states and 34796 transitions.
[2022-11-20 11:35:56,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:35:56,363 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 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 1681
[2022-11-20 11:35:56,363 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:35:56,414 INFO  L225             Difference]: With dead ends: 21538
[2022-11-20 11:35:56,415 INFO  L226             Difference]: Without dead ends: 14174
[2022-11-20 11:35:56,423 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:35:56,425 INFO  L413           NwaCegarLoop]: 1713 mSDtfsCounter, 2440 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 4820 mSolverCounterSat, 2059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 6879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2059 IncrementalHoareTripleChecker+Valid, 4820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time
[2022-11-20 11:35:56,425 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 1908 Invalid, 6879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2059 Valid, 4820 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time]
[2022-11-20 11:35:56,442 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14174 states.
[2022-11-20 11:35:56,689 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14174 to 14173.
[2022-11-20 11:35:56,726 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14173 states, 14172 states have (on average 1.45385266723116) internal successors, (20604), 14172 states have internal predecessors, (20604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:35:56,776 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14173 states to 14173 states and 20604 transitions.
[2022-11-20 11:35:56,776 INFO  L78                 Accepts]: Start accepts. Automaton has 14173 states and 20604 transitions. Word has length 1681
[2022-11-20 11:35:56,777 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-20 11:35:56,777 INFO  L495      AbstractCegarLoop]: Abstraction has 14173 states and 20604 transitions.
[2022-11-20 11:35:56,779 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:35:56,779 INFO  L276                IsEmpty]: Start isEmpty. Operand 14173 states and 20604 transitions.
[2022-11-20 11:35:56,834 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1702
[2022-11-20 11:35:56,835 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:35:56,836 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-20 11:35:56,837 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-20 11:35:56,837 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:35:56,838 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:35:56,840 INFO  L85        PathProgramCache]: Analyzing trace with hash 434001468, now seen corresponding path program 1 times
[2022-11-20 11:35:56,840 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:35:56,840 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670627151]
[2022-11-20 11:35:56,841 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:35:56,841 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:35:57,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:35:58,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-11-20 11:35:58,448 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:35:58,448 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670627151]
[2022-11-20 11:35:58,449 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670627151] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:35:58,449 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:35:58,449 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-20 11:35:58,450 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405705780]
[2022-11-20 11:35:58,450 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:35:58,452 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:35:58,453 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:35:58,453 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:35:58,454 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:35:58,455 INFO  L87              Difference]: Start difference. First operand 14173 states and 20604 transitions. Second operand  has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 2 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:06,490 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:36:06,491 INFO  L93              Difference]: Finished difference Result 35133 states and 49953 transitions.
[2022-11-20 11:36:06,495 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:36:06,497 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 2 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1701
[2022-11-20 11:36:06,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:36:06,657 INFO  L225             Difference]: With dead ends: 35133
[2022-11-20 11:36:06,657 INFO  L226             Difference]: Without dead ends: 20962
[2022-11-20 11:36:06,668 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:36:06,669 INFO  L413           NwaCegarLoop]: 1072 mSDtfsCounter, 3170 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4772 mSolverCounterSat, 1206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3170 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 5978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1206 IncrementalHoareTripleChecker+Valid, 4772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time
[2022-11-20 11:36:06,670 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3170 Valid, 1156 Invalid, 5978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1206 Valid, 4772 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time]
[2022-11-20 11:36:06,700 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20962 states.
[2022-11-20 11:36:07,035 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20962 to 20962.
[2022-11-20 11:36:07,066 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20962 states, 20961 states have (on average 1.2836219646009255) internal successors, (26906), 20961 states have internal predecessors, (26906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:07,103 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20962 states to 20962 states and 26906 transitions.
[2022-11-20 11:36:07,103 INFO  L78                 Accepts]: Start accepts. Automaton has 20962 states and 26906 transitions. Word has length 1701
[2022-11-20 11:36:07,104 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-20 11:36:07,104 INFO  L495      AbstractCegarLoop]: Abstraction has 20962 states and 26906 transitions.
[2022-11-20 11:36:07,105 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 2 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:07,105 INFO  L276                IsEmpty]: Start isEmpty. Operand 20962 states and 26906 transitions.
[2022-11-20 11:36:07,171 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1744
[2022-11-20 11:36:07,171 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:36:07,173 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-20 11:36:07,173 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-20 11:36:07,173 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:36:07,174 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:36:07,175 INFO  L85        PathProgramCache]: Analyzing trace with hash 1999763699, now seen corresponding path program 1 times
[2022-11-20 11:36:07,175 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:36:07,175 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933118942]
[2022-11-20 11:36:07,176 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:36:07,176 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:36:07,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:36:08,890 INFO  L134       CoverageAnalysis]: Checked inductivity of 78 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-11-20 11:36:08,891 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:36:08,891 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933118942]
[2022-11-20 11:36:08,891 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933118942] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:36:08,892 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:36:08,892 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-20 11:36:08,892 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592110638]
[2022-11-20 11:36:08,893 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:36:08,895 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:36:08,896 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:36:08,896 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:36:08,896 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:36:08,898 INFO  L87              Difference]: Start difference. First operand 20962 states and 26906 transitions. Second operand  has 3 states, 3 states have (on average 579.6666666666666) internal successors, (1739), 2 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:18,350 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:36:18,350 INFO  L93              Difference]: Finished difference Result 62311 states and 79968 transitions.
[2022-11-20 11:36:18,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:36:18,352 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 579.6666666666666) internal successors, (1739), 2 states have internal predecessors, (1739), 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 1743
[2022-11-20 11:36:18,352 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:36:18,446 INFO  L225             Difference]: With dead ends: 62311
[2022-11-20 11:36:18,446 INFO  L226             Difference]: Without dead ends: 41351
[2022-11-20 11:36:18,468 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:36:18,469 INFO  L413           NwaCegarLoop]: 2053 mSDtfsCounter, 1795 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 5809 mSolverCounterSat, 1395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 7204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1395 IncrementalHoareTripleChecker+Valid, 5809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time
[2022-11-20 11:36:18,470 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 2346 Invalid, 7204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1395 Valid, 5809 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time]
[2022-11-20 11:36:18,517 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41351 states.
[2022-11-20 11:36:19,065 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41351 to 41343.
[2022-11-20 11:36:19,118 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41343 states, 41342 states have (on average 1.1994581781239417) internal successors, (49588), 41342 states have internal predecessors, (49588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:19,184 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41343 states to 41343 states and 49588 transitions.
[2022-11-20 11:36:19,184 INFO  L78                 Accepts]: Start accepts. Automaton has 41343 states and 49588 transitions. Word has length 1743
[2022-11-20 11:36:19,185 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-20 11:36:19,186 INFO  L495      AbstractCegarLoop]: Abstraction has 41343 states and 49588 transitions.
[2022-11-20 11:36:19,187 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 579.6666666666666) internal successors, (1739), 2 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:19,190 INFO  L276                IsEmpty]: Start isEmpty. Operand 41343 states and 49588 transitions.
[2022-11-20 11:36:19,294 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1762
[2022-11-20 11:36:19,295 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:36:19,296 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-20 11:36:19,298 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-11-20 11:36:19,298 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:36:19,300 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:36:19,300 INFO  L85        PathProgramCache]: Analyzing trace with hash -19092895, now seen corresponding path program 1 times
[2022-11-20 11:36:19,303 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:36:19,303 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126270095]
[2022-11-20 11:36:19,304 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:36:19,304 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:36:19,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:36:21,229 INFO  L134       CoverageAnalysis]: Checked inductivity of 118 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-11-20 11:36:21,229 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:36:21,229 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126270095]
[2022-11-20 11:36:21,229 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126270095] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:36:21,229 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:36:21,230 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-20 11:36:21,230 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858027909]
[2022-11-20 11:36:21,230 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:36:21,233 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:36:21,233 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:36:21,233 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:36:21,233 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:36:21,234 INFO  L87              Difference]: Start difference. First operand 41343 states and 49588 transitions. Second operand  has 3 states, 3 states have (on average 585.6666666666666) internal successors, (1757), 3 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:29,815 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:36:29,815 INFO  L93              Difference]: Finished difference Result 103074 states and 125332 transitions.
[2022-11-20 11:36:29,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:36:29,816 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 585.6666666666666) internal successors, (1757), 3 states have internal predecessors, (1757), 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 1761
[2022-11-20 11:36:29,817 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:36:29,926 INFO  L225             Difference]: With dead ends: 103074
[2022-11-20 11:36:29,926 INFO  L226             Difference]: Without dead ends: 61733
[2022-11-20 11:36:29,968 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:36:29,969 INFO  L413           NwaCegarLoop]: 3626 mSDtfsCounter, 2030 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 4767 mSolverCounterSat, 2212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 6979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2212 IncrementalHoareTripleChecker+Valid, 4767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time
[2022-11-20 11:36:29,970 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 3863 Invalid, 6979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2212 Valid, 4767 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time]
[2022-11-20 11:36:30,039 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61733 states.
[2022-11-20 11:36:31,048 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61733 to 61725.
[2022-11-20 11:36:31,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61725 states, 61724 states have (on average 1.1645713174778045) internal successors, (71882), 61724 states have internal predecessors, (71882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:31,204 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61725 states to 61725 states and 71882 transitions.
[2022-11-20 11:36:31,204 INFO  L78                 Accepts]: Start accepts. Automaton has 61725 states and 71882 transitions. Word has length 1761
[2022-11-20 11:36:31,205 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-20 11:36:31,205 INFO  L495      AbstractCegarLoop]: Abstraction has 61725 states and 71882 transitions.
[2022-11-20 11:36:31,206 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 585.6666666666666) internal successors, (1757), 3 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:31,206 INFO  L276                IsEmpty]: Start isEmpty. Operand 61725 states and 71882 transitions.
[2022-11-20 11:36:31,306 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1775
[2022-11-20 11:36:31,307 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:36:31,308 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-20 11:36:31,309 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-11-20 11:36:31,309 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:36:31,310 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:36:31,310 INFO  L85        PathProgramCache]: Analyzing trace with hash 1958013644, now seen corresponding path program 1 times
[2022-11-20 11:36:31,311 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:36:31,311 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743727788]
[2022-11-20 11:36:31,311 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:36:31,312 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:36:31,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:36:32,878 INFO  L134       CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-20 11:36:32,878 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:36:32,878 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743727788]
[2022-11-20 11:36:32,879 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743727788] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:36:32,879 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:36:32,879 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-20 11:36:32,880 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128829361]
[2022-11-20 11:36:32,880 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:36:32,883 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:36:32,883 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:36:32,883 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:36:32,884 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:36:32,885 INFO  L87              Difference]: Start difference. First operand 61725 states and 71882 transitions. Second operand  has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 2 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:42,647 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:36:42,648 INFO  L93              Difference]: Finished difference Result 184575 states and 214878 transitions.
[2022-11-20 11:36:42,648 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:36:42,649 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 2 states have internal predecessors, (1774), 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 1774
[2022-11-20 11:36:42,649 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:36:42,846 INFO  L225             Difference]: With dead ends: 184575
[2022-11-20 11:36:42,846 INFO  L226             Difference]: Without dead ends: 122852
[2022-11-20 11:36:42,915 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:36:42,921 INFO  L413           NwaCegarLoop]: 1932 mSDtfsCounter, 2209 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4509 mSolverCounterSat, 2346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 6855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2346 IncrementalHoareTripleChecker+Valid, 4509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time
[2022-11-20 11:36:42,922 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 2070 Invalid, 6855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2346 Valid, 4509 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time]
[2022-11-20 11:36:43,061 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 122852 states.
[2022-11-20 11:36:45,063 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 122852 to 109256.
[2022-11-20 11:36:45,230 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 109256 states, 109255 states have (on average 1.1281314356322365) internal successors, (123254), 109255 states have internal predecessors, (123254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:45,820 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 109256 states to 109256 states and 123254 transitions.
[2022-11-20 11:36:45,820 INFO  L78                 Accepts]: Start accepts. Automaton has 109256 states and 123254 transitions. Word has length 1774
[2022-11-20 11:36:45,821 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-20 11:36:45,821 INFO  L495      AbstractCegarLoop]: Abstraction has 109256 states and 123254 transitions.
[2022-11-20 11:36:45,822 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 2 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:45,823 INFO  L276                IsEmpty]: Start isEmpty. Operand 109256 states and 123254 transitions.
[2022-11-20 11:36:46,226 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1811
[2022-11-20 11:36:46,226 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:36:46,229 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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]
[2022-11-20 11:36:46,229 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-11-20 11:36:46,229 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:36:46,230 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:36:46,231 INFO  L85        PathProgramCache]: Analyzing trace with hash -1256100157, now seen corresponding path program 1 times
[2022-11-20 11:36:46,231 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:36:46,231 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642363473]
[2022-11-20 11:36:46,232 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:36:46,232 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:36:46,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:36:47,594 INFO  L134       CoverageAnalysis]: Checked inductivity of 176 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked.
[2022-11-20 11:36:47,595 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:36:47,595 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642363473]
[2022-11-20 11:36:47,595 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642363473] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:36:47,595 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:36:47,596 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-20 11:36:47,596 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876337189]
[2022-11-20 11:36:47,597 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:36:47,599 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:36:47,600 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:36:47,600 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:36:47,600 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:36:47,601 INFO  L87              Difference]: Start difference. First operand 109256 states and 123254 transitions. Second operand  has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 2 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:56,317 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:36:56,317 INFO  L93              Difference]: Finished difference Result 267773 states and 300924 transitions.
[2022-11-20 11:36:56,318 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:36:56,318 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 2 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1810
[2022-11-20 11:36:56,318 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:36:56,559 INFO  L225             Difference]: With dead ends: 267773
[2022-11-20 11:36:56,559 INFO  L226             Difference]: Without dead ends: 158519
[2022-11-20 11:36:56,617 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:36:56,619 INFO  L413           NwaCegarLoop]: 1208 mSDtfsCounter, 2218 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 4933 mSolverCounterSat, 2097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 7030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2097 IncrementalHoareTripleChecker+Valid, 4933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time
[2022-11-20 11:36:56,623 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2218 Valid, 1344 Invalid, 7030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2097 Valid, 4933 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time]
[2022-11-20 11:36:56,775 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 158519 states.
[2022-11-20 11:36:58,726 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 158519 to 151705.
[2022-11-20 11:36:58,821 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 151705 states, 151704 states have (on average 1.089608711701735) internal successors, (165298), 151704 states have internal predecessors, (165298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:59,155 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 151705 states to 151705 states and 165298 transitions.
[2022-11-20 11:36:59,155 INFO  L78                 Accepts]: Start accepts. Automaton has 151705 states and 165298 transitions. Word has length 1810
[2022-11-20 11:36:59,156 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-20 11:36:59,156 INFO  L495      AbstractCegarLoop]: Abstraction has 151705 states and 165298 transitions.
[2022-11-20 11:36:59,157 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 2 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:36:59,157 INFO  L276                IsEmpty]: Start isEmpty. Operand 151705 states and 165298 transitions.
[2022-11-20 11:36:59,863 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1920
[2022-11-20 11:36:59,863 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:36:59,865 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-20 11:36:59,865 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-11-20 11:36:59,865 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:36:59,866 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:36:59,866 INFO  L85        PathProgramCache]: Analyzing trace with hash -1657959563, now seen corresponding path program 1 times
[2022-11-20 11:36:59,867 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:36:59,867 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994797894]
[2022-11-20 11:36:59,867 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:36:59,883 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:37:00,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:37:03,549 INFO  L134       CoverageAnalysis]: Checked inductivity of 426 backedges. 391 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2022-11-20 11:37:03,550 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:37:03,550 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994797894]
[2022-11-20 11:37:03,550 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994797894] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:37:03,551 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:37:03,551 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-20 11:37:03,551 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306760579]
[2022-11-20 11:37:03,551 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:37:03,554 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:37:03,555 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:37:03,555 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:37:03,555 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:37:03,557 INFO  L87              Difference]: Start difference. First operand 151705 states and 165298 transitions. Second operand  has 3 states, 3 states have (on average 628.3333333333334) internal successors, (1885), 3 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:37:14,731 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:37:14,731 INFO  L93              Difference]: Finished difference Result 362904 states and 396417 transitions.
[2022-11-20 11:37:14,732 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:37:14,732 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 628.3333333333334) internal successors, (1885), 3 states have internal predecessors, (1885), 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 1919
[2022-11-20 11:37:14,733 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:37:15,038 INFO  L225             Difference]: With dead ends: 362904
[2022-11-20 11:37:15,039 INFO  L226             Difference]: Without dead ends: 209487
[2022-11-20 11:37:15,115 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:37:15,119 INFO  L413           NwaCegarLoop]: 3740 mSDtfsCounter, 1753 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 6034 mSolverCounterSat, 1219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 7253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1219 IncrementalHoareTripleChecker+Valid, 6034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time
[2022-11-20 11:37:15,119 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 3960 Invalid, 7253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1219 Valid, 6034 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time]
[2022-11-20 11:37:15,728 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 209487 states.
[2022-11-20 11:37:17,937 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 209487 to 207729.
[2022-11-20 11:37:18,079 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 207729 states, 207728 states have (on average 1.074404991142263) internal successors, (223184), 207728 states have internal predecessors, (223184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:37:18,468 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 207729 states to 207729 states and 223184 transitions.
[2022-11-20 11:37:18,468 INFO  L78                 Accepts]: Start accepts. Automaton has 207729 states and 223184 transitions. Word has length 1919
[2022-11-20 11:37:18,469 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-20 11:37:18,469 INFO  L495      AbstractCegarLoop]: Abstraction has 207729 states and 223184 transitions.
[2022-11-20 11:37:18,470 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 628.3333333333334) internal successors, (1885), 3 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:37:18,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 207729 states and 223184 transitions.
[2022-11-20 11:37:19,334 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2090
[2022-11-20 11:37:19,334 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:37:19,367 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2022-11-20 11:37:19,368 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-11-20 11:37:19,368 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:37:19,374 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:37:19,375 INFO  L85        PathProgramCache]: Analyzing trace with hash -2086605449, now seen corresponding path program 1 times
[2022-11-20 11:37:19,376 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:37:19,376 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365847899]
[2022-11-20 11:37:19,377 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:37:19,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:37:19,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:37:21,989 INFO  L134       CoverageAnalysis]: Checked inductivity of 658 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked.
[2022-11-20 11:37:21,989 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:37:21,989 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365847899]
[2022-11-20 11:37:21,990 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365847899] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:37:21,990 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:37:21,990 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-20 11:37:21,991 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737506270]
[2022-11-20 11:37:21,991 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:37:21,993 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:37:21,994 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:37:21,994 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:37:21,995 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:37:21,995 INFO  L87              Difference]: Start difference. First operand 207729 states and 223184 transitions. Second operand  has 3 states, 3 states have (on average 648.0) internal successors, (1944), 3 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:37:32,693 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:37:32,693 INFO  L93              Difference]: Finished difference Result 468169 states and 502938 transitions.
[2022-11-20 11:37:32,693 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:37:32,694 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 648.0) internal successors, (1944), 3 states have internal predecessors, (1944), 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 2089
[2022-11-20 11:37:32,694 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:37:33,044 INFO  L225             Difference]: With dead ends: 468169
[2022-11-20 11:37:33,045 INFO  L226             Difference]: Without dead ends: 260442
[2022-11-20 11:37:33,128 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:37:33,131 INFO  L413           NwaCegarLoop]: 3574 mSDtfsCounter, 1608 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 5256 mSolverCounterSat, 1358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 3803 SdHoareTripleChecker+Invalid, 6614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1358 IncrementalHoareTripleChecker+Valid, 5256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time
[2022-11-20 11:37:33,133 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 3803 Invalid, 6614 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1358 Valid, 5256 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time]
[2022-11-20 11:37:33,362 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 260442 states.
[2022-11-20 11:37:37,107 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 260442 to 258672.
[2022-11-20 11:37:37,309 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 258672 states, 258671 states have (on average 1.0694550220163836) internal successors, (276637), 258671 states have internal predecessors, (276637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:37:37,727 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 258672 states to 258672 states and 276637 transitions.
[2022-11-20 11:37:37,727 INFO  L78                 Accepts]: Start accepts. Automaton has 258672 states and 276637 transitions. Word has length 2089
[2022-11-20 11:37:37,727 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-20 11:37:37,728 INFO  L495      AbstractCegarLoop]: Abstraction has 258672 states and 276637 transitions.
[2022-11-20 11:37:37,728 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 648.0) internal successors, (1944), 3 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:37:37,728 INFO  L276                IsEmpty]: Start isEmpty. Operand 258672 states and 276637 transitions.
[2022-11-20 11:37:37,898 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2189
[2022-11-20 11:37:37,899 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-20 11:37:37,900 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-20 11:37:37,900 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-11-20 11:37:37,900 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-20 11:37:37,901 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-20 11:37:37,902 INFO  L85        PathProgramCache]: Analyzing trace with hash 1952200315, now seen corresponding path program 1 times
[2022-11-20 11:37:37,902 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-20 11:37:37,902 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157338588]
[2022-11-20 11:37:37,903 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-20 11:37:37,903 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-20 11:37:39,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-20 11:37:41,151 INFO  L134       CoverageAnalysis]: Checked inductivity of 1102 backedges. 879 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked.
[2022-11-20 11:37:41,151 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-20 11:37:41,151 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157338588]
[2022-11-20 11:37:41,152 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157338588] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-20 11:37:41,152 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-20 11:37:41,152 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-20 11:37:41,153 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007859825]
[2022-11-20 11:37:41,153 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-20 11:37:41,156 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-20 11:37:41,157 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-20 11:37:41,157 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-20 11:37:41,158 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:37:41,159 INFO  L87              Difference]: Start difference. First operand 258672 states and 276637 transitions. Second operand  has 3 states, 3 states have (on average 669.6666666666666) internal successors, (2009), 3 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-20 11:37:51,759 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-20 11:37:51,759 INFO  L93              Difference]: Finished difference Result 529234 states and 565313 transitions.
[2022-11-20 11:37:51,760 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-20 11:37:51,760 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 669.6666666666666) internal successors, (2009), 3 states have internal predecessors, (2009), 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 2188
[2022-11-20 11:37:51,761 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-20 11:37:52,153 INFO  L225             Difference]: With dead ends: 529234
[2022-11-20 11:37:52,154 INFO  L226             Difference]: Without dead ends: 267154
[2022-11-20 11:37:52,293 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-20 11:37:52,294 INFO  L413           NwaCegarLoop]: 2850 mSDtfsCounter, 2283 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4836 mSolverCounterSat, 1522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 2956 SdHoareTripleChecker+Invalid, 6358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1522 IncrementalHoareTripleChecker+Valid, 4836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time
[2022-11-20 11:37:52,294 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 2956 Invalid, 6358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1522 Valid, 4836 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time]
[2022-11-20 11:37:52,545 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 267154 states.