./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 53f42b1a
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF --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 62587b117a9681076835c6b8632932457a449dd934a075adad6a2d524a609396
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-53f42b1
[2021-11-20 06:28:36,765 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-11-20 06:28:36,769 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-20 06:28:36,840 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-20 06:28:36,841 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-20 06:28:36,847 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-20 06:28:36,849 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-20 06:28:36,854 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-20 06:28:36,858 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-20 06:28:36,866 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-20 06:28:36,867 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-11-20 06:28:36,870 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-20 06:28:36,870 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-20 06:28:36,874 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-20 06:28:36,877 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-20 06:28:36,887 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-20 06:28:36,889 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-20 06:28:36,891 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-20 06:28:36,894 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-20 06:28:36,904 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-20 06:28:36,907 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-20 06:28:36,909 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-20 06:28:36,913 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-11-20 06:28:36,915 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-20 06:28:36,926 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-20 06:28:36,927 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-20 06:28:36,927 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-20 06:28:36,930 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-20 06:28:36,931 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-20 06:28:36,933 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-20 06:28:36,933 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-20 06:28:36,935 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-20 06:28:36,937 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-20 06:28:36,939 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-20 06:28:36,941 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-20 06:28:36,942 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-20 06:28:36,943 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-20 06:28:36,943 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-20 06:28:36,943 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-20 06:28:36,945 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-20 06:28:36,946 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-11-20 06:28:36,947 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-20 06:28:36,998 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-11-20 06:28:36,998 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-20 06:28:36,999 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-20 06:28:36,999 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-20 06:28:37,008 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-20 06:28:37,009 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-20 06:28:37,010 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-20 06:28:37,010 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-11-20 06:28:37,010 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-11-20 06:28:37,011 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-20 06:28:37,012 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-11-20 06:28:37,012 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-11-20 06:28:37,013 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-11-20 06:28:37,013 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-11-20 06:28:37,013 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-11-20 06:28:37,014 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-20 06:28:37,014 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-11-20 06:28:37,014 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-11-20 06:28:37,014 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-11-20 06:28:37,015 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-11-20 06:28:37,015 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-11-20 06:28:37,015 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-20 06:28:37,015 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-11-20 06:28:37,016 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-11-20 06:28:37,016 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-20 06:28:37,016 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-20 06:28:37,017 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-11-20 06:28:37,017 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-20 06:28:37,017 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-11-20 06:28:37,019 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-20 06:28:37,020 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-11-20 06:28:37,020 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-20 06:28:37,020 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-20 06:28:37,021 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-11-20 06:28:37,021 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_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/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_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF
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 -> 62587b117a9681076835c6b8632932457a449dd934a075adad6a2d524a609396
[2021-11-20 06:28:37,344 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-20 06:28:37,383 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-20 06:28:37,388 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-20 06:28:37,390 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-11-20 06:28:37,391 INFO  L275        PluginConnector]: CDTParser initialized
[2021-11-20 06:28:37,393 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c
[2021-11-20 06:28:37,485 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/data/2d89aee11/18bddc7af981404eaea2c7fda8a601ba/FLAG42e198ca0
[2021-11-20 06:28:38,392 INFO  L306              CDTParser]: Found 1 translation units.
[2021-11-20 06:28:38,393 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c
[2021-11-20 06:28:38,426 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/data/2d89aee11/18bddc7af981404eaea2c7fda8a601ba/FLAG42e198ca0
[2021-11-20 06:28:38,506 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/data/2d89aee11/18bddc7af981404eaea2c7fda8a601ba
[2021-11-20 06:28:38,510 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-20 06:28:38,512 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-20 06:28:38,518 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-20 06:28:38,519 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-20 06:28:38,523 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-20 06:28:38,525 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:28:38" (1/1) ...
[2021-11-20 06:28:38,527 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a779967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:38, skipping insertion in model container
[2021-11-20 06:28:38,527 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:28:38" (1/1) ...
[2021-11-20 06:28:38,537 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-11-20 06:28:38,656 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-11-20 06:28:38,887 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c[1673,1686]
[2021-11-20 06:28:39,375 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-20 06:28:39,406 INFO  L203         MainTranslator]: Completed pre-run
[2021-11-20 06:28:39,440 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c[1673,1686]
[2021-11-20 06:28:39,787 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-20 06:28:39,816 INFO  L208         MainTranslator]: Completed translation
[2021-11-20 06:28:39,816 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39 WrapperNode
[2021-11-20 06:28:39,817 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-20 06:28:39,818 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-20 06:28:39,818 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-20 06:28:39,818 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-20 06:28:39,827 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (1/1) ...
[2021-11-20 06:28:39,923 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (1/1) ...
[2021-11-20 06:28:40,138 INFO  L137                Inliner]: procedures = 57, calls = 1672, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 3715
[2021-11-20 06:28:40,139 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-20 06:28:40,140 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-20 06:28:40,140 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-20 06:28:40,140 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-11-20 06:28:40,151 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (1/1) ...
[2021-11-20 06:28:40,151 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (1/1) ...
[2021-11-20 06:28:40,172 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (1/1) ...
[2021-11-20 06:28:40,173 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (1/1) ...
[2021-11-20 06:28:40,307 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (1/1) ...
[2021-11-20 06:28:40,340 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (1/1) ...
[2021-11-20 06:28:40,352 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (1/1) ...
[2021-11-20 06:28:40,387 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-20 06:28:40,388 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-20 06:28:40,388 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-11-20 06:28:40,388 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-11-20 06:28:40,391 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (1/1) ...
[2021-11-20 06:28:40,400 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-20 06:28:40,418 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 06:28:40,437 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-20 06:28:40,541 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce1b1f-0939-43b1-a966-f3fafe8b0453/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-20 06:28:40,581 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-11-20 06:28:40,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2021-11-20 06:28:40,597 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2021-11-20 06:28:40,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2021-11-20 06:28:40,597 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2021-11-20 06:28:40,597 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-20 06:28:40,598 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2021-11-20 06:28:40,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2021-11-20 06:28:40,598 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2021-11-20 06:28:40,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2021-11-20 06:28:40,598 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2021-11-20 06:28:40,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2021-11-20 06:28:40,599 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-11-20 06:28:40,599 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2021-11-20 06:28:40,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2021-11-20 06:28:40,600 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2021-11-20 06:28:40,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2021-11-20 06:28:40,600 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2021-11-20 06:28:40,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2021-11-20 06:28:40,600 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2021-11-20 06:28:40,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2021-11-20 06:28:40,600 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-20 06:28:40,600 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background
[2021-11-20 06:28:40,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background
[2021-11-20 06:28:40,601 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-11-20 06:28:40,601 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2021-11-20 06:28:40,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2021-11-20 06:28:40,601 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2021-11-20 06:28:40,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2021-11-20 06:28:40,602 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-20 06:28:40,602 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-20 06:28:40,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-20 06:28:40,602 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2021-11-20 06:28:40,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2021-11-20 06:28:40,602 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2021-11-20 06:28:40,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2021-11-20 06:28:40,603 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2021-11-20 06:28:40,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2021-11-20 06:28:41,218 INFO  L236             CfgBuilder]: Building ICFG
[2021-11-20 06:28:41,222 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-11-20 06:28:48,516 INFO  L277             CfgBuilder]: Performing block encoding
[2021-11-20 06:28:48,544 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-20 06:28:48,544 INFO  L301             CfgBuilder]: Removed 1 assume(true) statements.
[2021-11-20 06:28:48,549 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:28:48 BoogieIcfgContainer
[2021-11-20 06:28:48,550 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-20 06:28:48,552 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-20 06:28:48,552 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-11-20 06:28:48,561 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-11-20 06:28:48,561 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:28:38" (1/3) ...
[2021-11-20 06:28:48,562 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f83702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:28:48, skipping insertion in model container
[2021-11-20 06:28:48,563 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:39" (2/3) ...
[2021-11-20 06:28:48,563 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f83702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:28:48, skipping insertion in model container
[2021-11-20 06:28:48,563 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:28:48" (3/3) ...
[2021-11-20 06:28:48,565 INFO  L111   eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-2.c
[2021-11-20 06:28:48,572 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-20 06:28:48,573 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-20 06:28:48,647 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-20 06:28:48,665 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-11-20 06:28:48,665 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-20 06:28:48,744 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1138 states, 729 states have (on average 1.289437585733882) internal successors, (940), 761 states have internal predecessors, (940), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392)
[2021-11-20 06:28:48,833 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 723
[2021-11-20 06:28:48,834 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-20 06:28:48,836 INFO  L514         BasicCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 06:28:48,836 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 06:28:48,842 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 06:28:48,843 INFO  L85        PathProgramCache]: Analyzing trace with hash -435675448, now seen corresponding path program 1 times
[2021-11-20 06:28:48,854 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 06:28:48,855 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115983866]
[2021-11-20 06:28:48,855 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 06:28:48,857 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 06:28:49,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,550 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2021-11-20 06:28:49,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,572 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-11-20 06:28:49,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,581 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2021-11-20 06:28:49,584 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,590 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2021-11-20 06:28:49,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,599 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2021-11-20 06:28:49,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,608 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2021-11-20 06:28:49,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,633 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2021-11-20 06:28:49,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,642 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2021-11-20 06:28:49,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,666 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2021-11-20 06:28:49,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,675 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2021-11-20 06:28:49,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,701 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68
[2021-11-20 06:28:49,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,711 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74
[2021-11-20 06:28:49,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,732 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80
[2021-11-20 06:28:49,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,741 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2021-11-20 06:28:49,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,766 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2021-11-20 06:28:49,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,775 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2021-11-20 06:28:49,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,792 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2021-11-20 06:28:49,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,802 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110
[2021-11-20 06:28:49,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,826 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2021-11-20 06:28:49,829 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,841 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2021-11-20 06:28:49,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,849 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2021-11-20 06:28:49,852 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,863 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2021-11-20 06:28:49,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,881 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2021-11-20 06:28:49,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,895 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2021-11-20 06:28:49,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,905 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152
[2021-11-20 06:28:49,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,916 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158
[2021-11-20 06:28:49,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,949 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164
[2021-11-20 06:28:49,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,957 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170
[2021-11-20 06:28:49,960 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,974 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176
[2021-11-20 06:28:49,977 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,983 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182
[2021-11-20 06:28:49,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:49,993 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188
[2021-11-20 06:28:49,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,011 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194
[2021-11-20 06:28:50,014 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,023 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200
[2021-11-20 06:28:50,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,082 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405
[2021-11-20 06:28:50,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,090 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411
[2021-11-20 06:28:50,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,098 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417
[2021-11-20 06:28:50,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,106 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423
[2021-11-20 06:28:50,108 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,115 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429
[2021-11-20 06:28:50,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,124 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435
[2021-11-20 06:28:50,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,132 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441
[2021-11-20 06:28:50,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,145 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447
[2021-11-20 06:28:50,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,152 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453
[2021-11-20 06:28:50,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,162 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459
[2021-11-20 06:28:50,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,180 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465
[2021-11-20 06:28:50,182 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,191 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471
[2021-11-20 06:28:50,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,204 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477
[2021-11-20 06:28:50,206 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,211 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483
[2021-11-20 06:28:50,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,227 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489
[2021-11-20 06:28:50,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,241 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495
[2021-11-20 06:28:50,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,250 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501
[2021-11-20 06:28:50,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,260 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507
[2021-11-20 06:28:50,262 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,267 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513
[2021-11-20 06:28:50,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,275 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519
[2021-11-20 06:28:50,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,282 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525
[2021-11-20 06:28:50,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,289 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531
[2021-11-20 06:28:50,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,299 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537
[2021-11-20 06:28:50,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,308 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543
[2021-11-20 06:28:50,311 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,316 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549
[2021-11-20 06:28:50,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,328 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555
[2021-11-20 06:28:50,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,336 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 561
[2021-11-20 06:28:50,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,343 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567
[2021-11-20 06:28:50,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,353 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573
[2021-11-20 06:28:50,357 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,364 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579
[2021-11-20 06:28:50,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,380 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585
[2021-11-20 06:28:50,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,390 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591
[2021-11-20 06:28:50,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,398 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597
[2021-11-20 06:28:50,400 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,405 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 603
[2021-11-20 06:28:50,408 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,413 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 609
[2021-11-20 06:28:50,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,420 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615
[2021-11-20 06:28:50,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,427 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 621
[2021-11-20 06:28:50,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,444 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 627
[2021-11-20 06:28:50,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,452 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633
[2021-11-20 06:28:50,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,459 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639
[2021-11-20 06:28:50,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,466 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645
[2021-11-20 06:28:50,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,474 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651
[2021-11-20 06:28:50,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,481 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657
[2021-11-20 06:28:50,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,488 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663
[2021-11-20 06:28:50,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,496 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669
[2021-11-20 06:28:50,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,504 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 675
[2021-11-20 06:28:50,507 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,511 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 681
[2021-11-20 06:28:50,514 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,519 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687
[2021-11-20 06:28:50,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,528 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693
[2021-11-20 06:28:50,531 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,535 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699
[2021-11-20 06:28:50,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,543 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705
[2021-11-20 06:28:50,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,551 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711
[2021-11-20 06:28:50,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 06:28:50,573 INFO  L134       CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked.
[2021-11-20 06:28:50,574 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 06:28:50,574 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115983866]
[2021-11-20 06:28:50,575 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115983866] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 06:28:50,575 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 06:28:50,576 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-20 06:28:50,578 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648525929]
[2021-11-20 06:28:50,579 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 06:28:50,586 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-20 06:28:50,586 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 06:28:50,617 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-20 06:28:50,618 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-20 06:28:50,625 INFO  L87              Difference]: Start difference. First operand  has 1138 states, 729 states have (on average 1.289437585733882) internal successors, (940), 761 states have internal predecessors, (940), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392) Second operand  has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 2 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85)
[2021-11-20 06:28:50,843 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-20 06:28:50,843 INFO  L93              Difference]: Finished difference Result 2271 states and 3818 transitions.
[2021-11-20 06:28:50,844 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 06:28:50,846 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 2 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) Word has length 722
[2021-11-20 06:28:50,847 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-20 06:28:50,889 INFO  L225             Difference]: With dead ends: 2271
[2021-11-20 06:28:50,890 INFO  L226             Difference]: Without dead ends: 1132
[2021-11-20 06:28:50,913 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-20 06:28:50,925 INFO  L933         BasicCegarLoop]: 1721 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-20 06:28:50,932 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-20 06:28:50,972 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1132 states.
[2021-11-20 06:28:51,377 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1132.
[2021-11-20 06:28:51,383 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1132 states, 724 states have (on average 1.2845303867403315) internal successors, (930), 755 states have internal predecessors, (930), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392)
[2021-11-20 06:28:51,396 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1714 transitions.
[2021-11-20 06:28:51,399 INFO  L78                 Accepts]: Start accepts. Automaton has 1132 states and 1714 transitions. Word has length 722
[2021-11-20 06:28:51,399 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-20 06:28:51,400 INFO  L470      AbstractCegarLoop]: Abstraction has 1132 states and 1714 transitions.
[2021-11-20 06:28:51,401 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 2 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85)
[2021-11-20 06:28:51,401 INFO  L276                IsEmpty]: Start isEmpty. Operand 1132 states and 1714 transitions.
[2021-11-20 06:28:51,441 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 723
[2021-11-20 06:28:51,441 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-20 06:28:51,442 INFO  L514         BasicCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 06:28:51,442 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-20 06:28:51,443 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 06:28:51,443 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 06:28:51,444 INFO  L85        PathProgramCache]: Analyzing trace with hash -1426213970, now seen corresponding path program 1 times
[2021-11-20 06:28:51,444 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 06:28:51,445 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923920311]
[2021-11-20 06:28:51,445 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 06:28:51,445 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 06:29:01,049 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat