./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label19.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 5e519f3a
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_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc --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 8d19293d6c97292eadc216d0bdf76553228738bf7b7f58bcd2246dd2ebdace18
--- 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-5e519f3
[2022-11-02 20:38:10,853 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:38:10,856 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:38:10,908 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:38:10,908 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:38:10,912 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:38:10,914 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:38:10,918 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:38:10,920 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:38:10,926 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:38:10,927 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:38:10,929 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:38:10,930 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:38:10,932 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:38:10,934 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:38:10,936 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:38:10,937 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:38:10,938 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:38:10,940 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:38:10,947 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:38:10,949 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:38:10,950 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:38:10,954 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:38:10,955 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:38:10,965 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:38:10,966 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:38:10,966 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:38:10,968 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:38:10,968 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:38:10,969 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:38:10,969 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:38:10,971 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:38:10,972 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:38:10,974 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:38:10,975 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:38:10,975 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:38:10,976 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:38:10,976 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:38:10,977 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:38:10,978 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:38:10,978 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:38:10,979 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 20:38:11,020 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-02 20:38:11,020 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:38:11,021 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:38:11,021 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:38:11,022 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:38:11,023 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:38:11,024 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:38:11,024 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-02 20:38:11,024 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-11-02 20:38:11,024 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:38:11,025 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-11-02 20:38:11,026 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-02 20:38:11,026 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-11-02 20:38:11,026 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-02 20:38:11,026 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:38:11,026 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:38:11,027 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:38:11,027 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-11-02 20:38:11,027 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-02 20:38:11,027 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-02 20:38:11,027 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:38:11,028 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:38:11,028 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-02 20:38:11,028 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-02 20:38:11,028 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:38:11,029 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:38:11,029 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:38:11,029 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:38:11,029 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-11-02 20:38:11,030 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:38:11,030 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:38:11,030 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:38:11,030 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:38:11,031 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_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/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_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc
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 -> 8d19293d6c97292eadc216d0bdf76553228738bf7b7f58bcd2246dd2ebdace18
[2022-11-02 20:38:11,357 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:38:11,388 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:38:11,405 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:38:11,406 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-02 20:38:11,407 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-02 20:38:11,408 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/eca-rers2012/Problem10_label19.c
[2022-11-02 20:38:11,473 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/data/fa39f3704/9c28b66622ed4f1b96aa213f91e0ed64/FLAG681ff5157
[2022-11-02 20:38:12,014 INFO  L306              CDTParser]: Found 1 translation units.
[2022-11-02 20:38:12,015 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/sv-benchmarks/c/eca-rers2012/Problem10_label19.c
[2022-11-02 20:38:12,025 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/data/fa39f3704/9c28b66622ed4f1b96aa213f91e0ed64/FLAG681ff5157
[2022-11-02 20:38:12,327 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/data/fa39f3704/9c28b66622ed4f1b96aa213f91e0ed64
[2022-11-02 20:38:12,331 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:38:12,334 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:38:12,338 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:38:12,338 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:38:12,341 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:38:12,342 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:12,348 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438d1656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12, skipping insertion in model container
[2022-11-02 20:38:12,348 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:12,355 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-02 20:38:12,413 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:38:12,632 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_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/sv-benchmarks/c/eca-rers2012/Problem10_label19.c[3486,3499]
[2022-11-02 20:38:12,811 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:38:12,828 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-02 20:38:12,862 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_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/sv-benchmarks/c/eca-rers2012/Problem10_label19.c[3486,3499]
[2022-11-02 20:38:12,981 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:38:12,995 INFO  L208         MainTranslator]: Completed translation
[2022-11-02 20:38:12,996 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12 WrapperNode
[2022-11-02 20:38:12,996 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:38:12,997 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:38:12,997 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:38:12,998 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:38:13,005 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,032 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,104 INFO  L138                Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597
[2022-11-02 20:38:13,105 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:38:13,105 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:38:13,106 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:38:13,106 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:38:13,115 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,116 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,121 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,121 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,144 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,152 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,156 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,161 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,169 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:38:13,170 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:38:13,170 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:38:13,171 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:38:13,172 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (1/1) ...
[2022-11-02 20:38:13,202 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:38:13,215 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:38:13,230 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:38:13,261 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:38:13,281 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:38:13,281 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 20:38:13,281 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:38:13,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:38:13,407 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-02 20:38:13,409 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:38:14,938 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-02 20:38:14,947 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:38:14,947 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 20:38:14,949 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:38:14 BoogieIcfgContainer
[2022-11-02 20:38:14,950 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:38:14,952 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:38:14,952 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:38:14,956 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:38:14,956 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:38:12" (1/3) ...
[2022-11-02 20:38:14,957 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bb81d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:38:14, skipping insertion in model container
[2022-11-02 20:38:14,957 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:12" (2/3) ...
[2022-11-02 20:38:14,957 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bb81d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:38:14, skipping insertion in model container
[2022-11-02 20:38:14,958 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:38:14" (3/3) ...
[2022-11-02 20:38:14,959 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem10_label19.c
[2022-11-02 20:38:14,982 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:38:14,982 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:38:15,065 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:38:15,072 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;@6c98c954, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:38:15,073 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 20:38:15,080 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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)
[2022-11-02 20:38:15,088 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2022-11-02 20:38:15,089 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:15,090 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]
[2022-11-02 20:38:15,090 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:15,098 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:15,099 INFO  L85        PathProgramCache]: Analyzing trace with hash -748286455, now seen corresponding path program 1 times
[2022-11-02 20:38:15,109 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:15,110 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567773925]
[2022-11-02 20:38:15,111 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:15,111 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:15,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:15,424 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:38:15,424 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:15,425 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567773925]
[2022-11-02 20:38:15,426 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567773925] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:15,427 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:38:15,427 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:38:15,429 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205831897]
[2022-11-02 20:38:15,431 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:15,435 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:38:15,437 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:15,481 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:38:15,482 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:38:15,488 INFO  L87              Difference]: Start difference. First operand  has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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)
[2022-11-02 20:38:16,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:16,577 INFO  L93              Difference]: Finished difference Result 567 states and 981 transitions.
[2022-11-02 20:38:16,582 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:38:16,584 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 29
[2022-11-02 20:38:16,584 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:16,604 INFO  L225             Difference]: With dead ends: 567
[2022-11-02 20:38:16,611 INFO  L226             Difference]: Without dead ends: 282
[2022-11-02 20:38:16,616 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
[2022-11-02 20:38:16,620 INFO  L413           NwaCegarLoop]: 25 mSDtfsCounter, 171 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:16,622 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 32 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2022-11-02 20:38:16,643 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2022-11-02 20:38:16,680 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282.
[2022-11-02 20:38:16,687 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 282 states, 281 states have (on average 1.5373665480427046) internal successors, (432), 281 states have internal predecessors, (432), 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)
[2022-11-02 20:38:16,688 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions.
[2022-11-02 20:38:16,689 INFO  L78                 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 29
[2022-11-02 20:38:16,690 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:16,690 INFO  L495      AbstractCegarLoop]: Abstraction has 282 states and 432 transitions.
[2022-11-02 20:38:16,690 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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)
[2022-11-02 20:38:16,691 INFO  L276                IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions.
[2022-11-02 20:38:16,693 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2022-11-02 20:38:16,693 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:16,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:38:16,697 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:38:16,698 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:16,698 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:16,698 INFO  L85        PathProgramCache]: Analyzing trace with hash 114583996, now seen corresponding path program 1 times
[2022-11-02 20:38:16,698 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:16,699 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653393077]
[2022-11-02 20:38:16,699 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:16,699 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:16,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:17,240 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 20:38:17,241 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:17,241 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653393077]
[2022-11-02 20:38:17,241 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653393077] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:38:17,242 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624727420]
[2022-11-02 20:38:17,242 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:17,242 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:38:17,242 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:38:17,244 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:38:17,246 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-02 20:38:17,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:17,379 INFO  L263         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:38:17,392 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:38:17,514 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:38:17,515 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:38:17,515 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [624727420] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:17,515 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:38:17,516 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2022-11-02 20:38:17,516 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651064287]
[2022-11-02 20:38:17,517 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:17,518 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:38:17,518 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:17,518 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:38:17,519 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:38:17,519 INFO  L87              Difference]: Start difference. First operand 282 states and 432 transitions. Second operand  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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)
[2022-11-02 20:38:18,142 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:18,142 INFO  L93              Difference]: Finished difference Result 840 states and 1291 transitions.
[2022-11-02 20:38:18,143 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:38:18,143 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95
[2022-11-02 20:38:18,144 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:18,146 INFO  L225             Difference]: With dead ends: 840
[2022-11-02 20:38:18,146 INFO  L226             Difference]: Without dead ends: 560
[2022-11-02 20:38:18,147 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:38:18,148 INFO  L413           NwaCegarLoop]: 221 mSDtfsCounter, 113 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:18,149 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 226 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-11-02 20:38:18,151 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 560 states.
[2022-11-02 20:38:18,174 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560.
[2022-11-02 20:38:18,183 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 560 states, 559 states have (on average 1.3774597495527727) internal successors, (770), 559 states have internal predecessors, (770), 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)
[2022-11-02 20:38:18,186 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 770 transitions.
[2022-11-02 20:38:18,186 INFO  L78                 Accepts]: Start accepts. Automaton has 560 states and 770 transitions. Word has length 95
[2022-11-02 20:38:18,187 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:18,187 INFO  L495      AbstractCegarLoop]: Abstraction has 560 states and 770 transitions.
[2022-11-02 20:38:18,188 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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)
[2022-11-02 20:38:18,188 INFO  L276                IsEmpty]: Start isEmpty. Operand 560 states and 770 transitions.
[2022-11-02 20:38:18,194 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-11-02 20:38:18,198 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:18,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:38:18,238 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:38:18,414 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:38:18,415 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:18,416 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:18,416 INFO  L85        PathProgramCache]: Analyzing trace with hash -2129686411, now seen corresponding path program 1 times
[2022-11-02 20:38:18,416 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:18,416 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513398774]
[2022-11-02 20:38:18,416 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:18,416 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:18,474 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:18,652 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:38:18,652 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:18,652 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513398774]
[2022-11-02 20:38:18,653 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513398774] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:18,653 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:38:18,653 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:38:18,653 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664202949]
[2022-11-02 20:38:18,653 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:18,654 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:38:18,654 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:18,655 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:38:18,655 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:38:18,655 INFO  L87              Difference]: Start difference. First operand 560 states and 770 transitions. Second operand  has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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)
[2022-11-02 20:38:19,293 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:19,293 INFO  L93              Difference]: Finished difference Result 1396 states and 1967 transitions.
[2022-11-02 20:38:19,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:38:19,294 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 106
[2022-11-02 20:38:19,295 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:19,298 INFO  L225             Difference]: With dead ends: 1396
[2022-11-02 20:38:19,298 INFO  L226             Difference]: Without dead ends: 838
[2022-11-02 20:38:19,299 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
[2022-11-02 20:38:19,300 INFO  L413           NwaCegarLoop]: 62 mSDtfsCounter, 70 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:19,301 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 65 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-11-02 20:38:19,303 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 838 states.
[2022-11-02 20:38:19,330 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838.
[2022-11-02 20:38:19,333 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 838 states, 837 states have (on average 1.3010752688172043) internal successors, (1089), 837 states have internal predecessors, (1089), 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)
[2022-11-02 20:38:19,336 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1089 transitions.
[2022-11-02 20:38:19,336 INFO  L78                 Accepts]: Start accepts. Automaton has 838 states and 1089 transitions. Word has length 106
[2022-11-02 20:38:19,338 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:19,338 INFO  L495      AbstractCegarLoop]: Abstraction has 838 states and 1089 transitions.
[2022-11-02 20:38:19,338 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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)
[2022-11-02 20:38:19,339 INFO  L276                IsEmpty]: Start isEmpty. Operand 838 states and 1089 transitions.
[2022-11-02 20:38:19,345 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2022-11-02 20:38:19,350 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:19,350 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:38:19,350 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-02 20:38:19,351 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:19,351 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:19,352 INFO  L85        PathProgramCache]: Analyzing trace with hash 901044270, now seen corresponding path program 1 times
[2022-11-02 20:38:19,352 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:19,352 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873452805]
[2022-11-02 20:38:19,353 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:19,353 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:19,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:19,803 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:38:19,804 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:19,804 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873452805]
[2022-11-02 20:38:19,804 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873452805] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:19,804 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:38:19,804 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:38:19,805 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30537356]
[2022-11-02 20:38:19,805 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:19,805 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:38:19,806 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:19,806 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:38:19,806 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:38:19,807 INFO  L87              Difference]: Start difference. First operand 838 states and 1089 transitions. Second operand  has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 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)
[2022-11-02 20:38:20,614 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:20,614 INFO  L93              Difference]: Finished difference Result 1833 states and 2355 transitions.
[2022-11-02 20:38:20,614 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-11-02 20:38:20,615 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 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 116
[2022-11-02 20:38:20,615 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:20,618 INFO  L225             Difference]: With dead ends: 1833
[2022-11-02 20:38:20,619 INFO  L226             Difference]: Without dead ends: 997
[2022-11-02 20:38:20,620 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:38:20,621 INFO  L413           NwaCegarLoop]: 83 mSDtfsCounter, 130 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:20,622 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 96 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2022-11-02 20:38:20,623 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 997 states.
[2022-11-02 20:38:20,638 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 977.
[2022-11-02 20:38:20,640 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 977 states, 976 states have (on average 1.2633196721311475) internal successors, (1233), 976 states have internal predecessors, (1233), 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)
[2022-11-02 20:38:20,642 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1233 transitions.
[2022-11-02 20:38:20,642 INFO  L78                 Accepts]: Start accepts. Automaton has 977 states and 1233 transitions. Word has length 116
[2022-11-02 20:38:20,643 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:20,643 INFO  L495      AbstractCegarLoop]: Abstraction has 977 states and 1233 transitions.
[2022-11-02 20:38:20,643 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 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)
[2022-11-02 20:38:20,643 INFO  L276                IsEmpty]: Start isEmpty. Operand 977 states and 1233 transitions.
[2022-11-02 20:38:20,645 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 174
[2022-11-02 20:38:20,645 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:20,645 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-11-02 20:38:20,646 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-02 20:38:20,646 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:20,646 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:20,646 INFO  L85        PathProgramCache]: Analyzing trace with hash -382866611, now seen corresponding path program 1 times
[2022-11-02 20:38:20,647 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:20,647 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838291635]
[2022-11-02 20:38:20,647 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:20,647 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:20,740 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:21,212 INFO  L134       CoverageAnalysis]: Checked inductivity of 118 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:38:21,212 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:21,212 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838291635]
[2022-11-02 20:38:21,212 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838291635] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:21,213 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:38:21,213 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:38:21,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868096570]
[2022-11-02 20:38:21,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:21,215 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:38:21,215 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:21,216 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:38:21,220 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:38:21,220 INFO  L87              Difference]: Start difference. First operand 977 states and 1233 transitions. Second operand  has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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)
[2022-11-02 20:38:21,811 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:21,811 INFO  L93              Difference]: Finished difference Result 2091 states and 2658 transitions.
[2022-11-02 20:38:21,811 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:38:21,812 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 173
[2022-11-02 20:38:21,812 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:21,816 INFO  L225             Difference]: With dead ends: 2091
[2022-11-02 20:38:21,817 INFO  L226             Difference]: Without dead ends: 1255
[2022-11-02 20:38:21,818 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:38:21,819 INFO  L413           NwaCegarLoop]: 16 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:21,819 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 19 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-11-02 20:38:21,821 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1255 states.
[2022-11-02 20:38:21,846 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255.
[2022-11-02 20:38:21,848 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1255 states, 1254 states have (on average 1.2208931419457736) internal successors, (1531), 1254 states have internal predecessors, (1531), 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)
[2022-11-02 20:38:21,852 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1531 transitions.
[2022-11-02 20:38:21,856 INFO  L78                 Accepts]: Start accepts. Automaton has 1255 states and 1531 transitions. Word has length 173
[2022-11-02 20:38:21,857 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:21,858 INFO  L495      AbstractCegarLoop]: Abstraction has 1255 states and 1531 transitions.
[2022-11-02 20:38:21,858 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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)
[2022-11-02 20:38:21,858 INFO  L276                IsEmpty]: Start isEmpty. Operand 1255 states and 1531 transitions.
[2022-11-02 20:38:21,864 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2022-11-02 20:38:21,865 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:21,865 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-11-02 20:38:21,865 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-11-02 20:38:21,866 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:21,867 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:21,868 INFO  L85        PathProgramCache]: Analyzing trace with hash 1372334807, now seen corresponding path program 1 times
[2022-11-02 20:38:21,868 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:21,868 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953185414]
[2022-11-02 20:38:21,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:21,869 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:21,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:22,283 INFO  L134       CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked.
[2022-11-02 20:38:22,283 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:22,284 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953185414]
[2022-11-02 20:38:22,284 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953185414] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:38:22,285 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828561933]
[2022-11-02 20:38:22,285 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:22,285 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:38:22,285 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:38:22,286 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:38:22,310 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-02 20:38:22,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:22,407 INFO  L263         TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:38:22,424 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:38:22,764 INFO  L134       CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked.
[2022-11-02 20:38:22,764 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:38:22,767 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [828561933] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:22,767 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:38:22,768 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2022-11-02 20:38:22,771 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370011322]
[2022-11-02 20:38:22,771 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:22,772 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:38:22,772 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:22,772 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:38:22,772 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:38:22,773 INFO  L87              Difference]: Start difference. First operand 1255 states and 1531 transitions. Second operand  has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 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)
[2022-11-02 20:38:23,382 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:23,383 INFO  L93              Difference]: Finished difference Result 2369 states and 2916 transitions.
[2022-11-02 20:38:23,383 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:38:23,383 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 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 177
[2022-11-02 20:38:23,384 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:23,391 INFO  L225             Difference]: With dead ends: 2369
[2022-11-02 20:38:23,391 INFO  L226             Difference]: Without dead ends: 2367
[2022-11-02 20:38:23,392 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:38:23,399 INFO  L413           NwaCegarLoop]: 47 mSDtfsCounter, 84 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:23,400 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 51 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-11-02 20:38:23,403 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2367 states.
[2022-11-02 20:38:23,424 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 977.
[2022-11-02 20:38:23,426 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 977 states, 976 states have (on average 1.2325819672131149) internal successors, (1203), 976 states have internal predecessors, (1203), 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)
[2022-11-02 20:38:23,429 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1203 transitions.
[2022-11-02 20:38:23,429 INFO  L78                 Accepts]: Start accepts. Automaton has 977 states and 1203 transitions. Word has length 177
[2022-11-02 20:38:23,430 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:23,430 INFO  L495      AbstractCegarLoop]: Abstraction has 977 states and 1203 transitions.
[2022-11-02 20:38:23,430 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 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)
[2022-11-02 20:38:23,430 INFO  L276                IsEmpty]: Start isEmpty. Operand 977 states and 1203 transitions.
[2022-11-02 20:38:23,433 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 227
[2022-11-02 20:38:23,434 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:23,434 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-11-02 20:38:23,474 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:38:23,654 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:38:23,654 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:23,655 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:23,655 INFO  L85        PathProgramCache]: Analyzing trace with hash 165061839, now seen corresponding path program 1 times
[2022-11-02 20:38:23,655 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:23,655 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370058942]
[2022-11-02 20:38:23,655 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:23,656 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:23,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:24,214 INFO  L134       CoverageAnalysis]: Checked inductivity of 127 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:38:24,214 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:24,214 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370058942]
[2022-11-02 20:38:24,215 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370058942] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:24,215 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:38:24,215 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 20:38:24,215 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931525964]
[2022-11-02 20:38:24,216 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:24,216 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 20:38:24,216 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:24,217 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 20:38:24,217 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:38:24,217 INFO  L87              Difference]: Start difference. First operand 977 states and 1203 transitions. Second operand  has 7 states, 7 states have (on average 32.285714285714285) internal successors, (226), 6 states have internal predecessors, (226), 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)
[2022-11-02 20:38:24,876 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:24,877 INFO  L93              Difference]: Finished difference Result 1868 states and 2315 transitions.
[2022-11-02 20:38:24,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-11-02 20:38:24,878 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 32.285714285714285) internal successors, (226), 6 states have internal predecessors, (226), 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 226
[2022-11-02 20:38:24,878 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:24,881 INFO  L225             Difference]: With dead ends: 1868
[2022-11-02 20:38:24,882 INFO  L226             Difference]: Without dead ends: 977
[2022-11-02 20:38:24,883 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:38:24,884 INFO  L413           NwaCegarLoop]: 9 mSDtfsCounter, 198 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:24,886 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 22 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-11-02 20:38:24,888 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 977 states.
[2022-11-02 20:38:24,906 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977.
[2022-11-02 20:38:24,908 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 977 states, 976 states have (on average 1.2274590163934427) internal successors, (1198), 976 states have internal predecessors, (1198), 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)
[2022-11-02 20:38:24,911 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1198 transitions.
[2022-11-02 20:38:24,911 INFO  L78                 Accepts]: Start accepts. Automaton has 977 states and 1198 transitions. Word has length 226
[2022-11-02 20:38:24,911 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:24,912 INFO  L495      AbstractCegarLoop]: Abstraction has 977 states and 1198 transitions.
[2022-11-02 20:38:24,912 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 32.285714285714285) internal successors, (226), 6 states have internal predecessors, (226), 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)
[2022-11-02 20:38:24,912 INFO  L276                IsEmpty]: Start isEmpty. Operand 977 states and 1198 transitions.
[2022-11-02 20:38:24,916 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2022-11-02 20:38:24,917 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:24,917 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:38:24,917 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-11-02 20:38:24,918 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:24,918 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:24,918 INFO  L85        PathProgramCache]: Analyzing trace with hash -1220072915, now seen corresponding path program 1 times
[2022-11-02 20:38:24,919 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:24,919 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925178001]
[2022-11-02 20:38:24,919 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:24,919 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:25,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:25,856 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 197 proven. 64 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2022-11-02 20:38:25,859 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:25,859 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925178001]
[2022-11-02 20:38:25,859 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925178001] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:38:25,859 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290982267]
[2022-11-02 20:38:25,860 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:25,860 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:38:25,860 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:38:25,863 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:38:25,886 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-11-02 20:38:25,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:26,000 INFO  L263         TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:38:26,004 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:38:26,054 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked.
[2022-11-02 20:38:26,054 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:38:26,055 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [290982267] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:26,055 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:38:26,055 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8
[2022-11-02 20:38:26,055 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473962438]
[2022-11-02 20:38:26,055 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:26,056 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:38:26,056 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:26,057 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:38:26,057 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:38:26,057 INFO  L87              Difference]: Start difference. First operand 977 states and 1198 transitions. Second operand  has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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)
[2022-11-02 20:38:26,584 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:26,585 INFO  L93              Difference]: Finished difference Result 1813 states and 2251 transitions.
[2022-11-02 20:38:26,585 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:38:26,585 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 257
[2022-11-02 20:38:26,586 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:26,589 INFO  L225             Difference]: With dead ends: 1813
[2022-11-02 20:38:26,589 INFO  L226             Difference]: Without dead ends: 977
[2022-11-02 20:38:26,592 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:38:26,593 INFO  L413           NwaCegarLoop]: 154 mSDtfsCounter, 135 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:26,594 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 159 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-11-02 20:38:26,595 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 977 states.
[2022-11-02 20:38:26,609 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 838.
[2022-11-02 20:38:26,610 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 838 states, 837 states have (on average 1.1768219832735962) internal successors, (985), 837 states have internal predecessors, (985), 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)
[2022-11-02 20:38:26,613 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 985 transitions.
[2022-11-02 20:38:26,613 INFO  L78                 Accepts]: Start accepts. Automaton has 838 states and 985 transitions. Word has length 257
[2022-11-02 20:38:26,614 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:26,614 INFO  L495      AbstractCegarLoop]: Abstraction has 838 states and 985 transitions.
[2022-11-02 20:38:26,614 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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)
[2022-11-02 20:38:26,614 INFO  L276                IsEmpty]: Start isEmpty. Operand 838 states and 985 transitions.
[2022-11-02 20:38:26,618 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 263
[2022-11-02 20:38:26,618 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:26,619 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2022-11-02 20:38:26,658 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-11-02 20:38:26,834 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:38:26,835 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:26,835 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:26,835 INFO  L85        PathProgramCache]: Analyzing trace with hash 528362729, now seen corresponding path program 1 times
[2022-11-02 20:38:26,835 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:26,835 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948837601]
[2022-11-02 20:38:26,835 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:26,836 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:26,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:27,378 INFO  L134       CoverageAnalysis]: Checked inductivity of 163 backedges. 68 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:38:27,378 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:27,379 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948837601]
[2022-11-02 20:38:27,379 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948837601] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:38:27,383 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919511267]
[2022-11-02 20:38:27,383 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:27,384 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:38:27,384 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:38:27,385 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:38:27,391 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-11-02 20:38:27,524 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:27,525 INFO  L263         TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:38:27,529 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:38:27,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 163 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked.
[2022-11-02 20:38:27,848 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:38:27,848 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [919511267] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:27,848 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:38:27,849 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5
[2022-11-02 20:38:27,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716951616]
[2022-11-02 20:38:27,849 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:27,850 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:38:27,850 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:27,850 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:38:27,850 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:38:27,851 INFO  L87              Difference]: Start difference. First operand 838 states and 985 transitions. Second operand  has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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)
[2022-11-02 20:38:28,484 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:28,484 INFO  L93              Difference]: Finished difference Result 1813 states and 2177 transitions.
[2022-11-02 20:38:28,485 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:38:28,485 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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 262
[2022-11-02 20:38:28,486 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:28,490 INFO  L225             Difference]: With dead ends: 1813
[2022-11-02 20:38:28,490 INFO  L226             Difference]: Without dead ends: 1116
[2022-11-02 20:38:28,491 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:38:28,492 INFO  L413           NwaCegarLoop]: 31 mSDtfsCounter, 54 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:28,492 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 34 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-11-02 20:38:28,494 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1116 states.
[2022-11-02 20:38:28,518 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116.
[2022-11-02 20:38:28,520 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1116 states, 1115 states have (on average 1.1632286995515695) internal successors, (1297), 1115 states have internal predecessors, (1297), 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)
[2022-11-02 20:38:28,524 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1297 transitions.
[2022-11-02 20:38:28,524 INFO  L78                 Accepts]: Start accepts. Automaton has 1116 states and 1297 transitions. Word has length 262
[2022-11-02 20:38:28,525 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:28,525 INFO  L495      AbstractCegarLoop]: Abstraction has 1116 states and 1297 transitions.
[2022-11-02 20:38:28,525 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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)
[2022-11-02 20:38:28,526 INFO  L276                IsEmpty]: Start isEmpty. Operand 1116 states and 1297 transitions.
[2022-11-02 20:38:28,533 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 331
[2022-11-02 20:38:28,533 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:28,533 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:38:28,578 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-11-02 20:38:28,756 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:38:28,757 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:28,757 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:28,757 INFO  L85        PathProgramCache]: Analyzing trace with hash -768137055, now seen corresponding path program 1 times
[2022-11-02 20:38:28,758 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:28,758 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284758585]
[2022-11-02 20:38:28,758 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:28,758 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:28,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:29,028 INFO  L134       CoverageAnalysis]: Checked inductivity of 325 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked.
[2022-11-02 20:38:29,028 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:29,029 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284758585]
[2022-11-02 20:38:29,029 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284758585] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:29,029 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:38:29,029 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:38:29,029 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338840103]
[2022-11-02 20:38:29,030 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:29,030 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:38:29,030 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:29,031 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:38:29,031 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:38:29,031 INFO  L87              Difference]: Start difference. First operand 1116 states and 1297 transitions. Second operand  has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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)
[2022-11-02 20:38:29,618 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:29,618 INFO  L93              Difference]: Finished difference Result 2786 states and 3293 transitions.
[2022-11-02 20:38:29,622 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:38:29,622 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 330
[2022-11-02 20:38:29,623 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:29,628 INFO  L225             Difference]: With dead ends: 2786
[2022-11-02 20:38:29,628 INFO  L226             Difference]: Without dead ends: 1811
[2022-11-02 20:38:29,630 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
[2022-11-02 20:38:29,632 INFO  L413           NwaCegarLoop]: 200 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:29,633 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 205 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-11-02 20:38:29,635 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1811 states.
[2022-11-02 20:38:29,679 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1811.
[2022-11-02 20:38:29,682 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1811 states, 1810 states have (on average 1.1447513812154697) internal successors, (2072), 1810 states have internal predecessors, (2072), 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)
[2022-11-02 20:38:29,687 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2072 transitions.
[2022-11-02 20:38:29,688 INFO  L78                 Accepts]: Start accepts. Automaton has 1811 states and 2072 transitions. Word has length 330
[2022-11-02 20:38:29,688 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:29,688 INFO  L495      AbstractCegarLoop]: Abstraction has 1811 states and 2072 transitions.
[2022-11-02 20:38:29,689 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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)
[2022-11-02 20:38:29,689 INFO  L276                IsEmpty]: Start isEmpty. Operand 1811 states and 2072 transitions.
[2022-11-02 20:38:29,696 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 344
[2022-11-02 20:38:29,696 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:38:29,697 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:38:29,697 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-11-02 20:38:29,697 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:38:29,698 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:38:29,698 INFO  L85        PathProgramCache]: Analyzing trace with hash 1255126781, now seen corresponding path program 1 times
[2022-11-02 20:38:29,698 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:38:29,698 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058569196]
[2022-11-02 20:38:29,699 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:29,699 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:38:29,773 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:30,190 INFO  L134       CoverageAnalysis]: Checked inductivity of 351 backedges. 17 proven. 63 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked.
[2022-11-02 20:38:30,191 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:38:30,191 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058569196]
[2022-11-02 20:38:30,191 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058569196] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:38:30,192 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77567834]
[2022-11-02 20:38:30,193 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:38:30,193 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:38:30,193 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:38:30,194 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:38:30,214 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-11-02 20:38:30,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:38:30,367 INFO  L263         TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:38:30,371 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:38:30,418 INFO  L134       CoverageAnalysis]: Checked inductivity of 351 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked.
[2022-11-02 20:38:30,418 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:38:30,418 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [77567834] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:38:30,419 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:38:30,419 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2022-11-02 20:38:30,421 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539212160]
[2022-11-02 20:38:30,421 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:38:30,422 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:38:30,422 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:38:30,423 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:38:30,423 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:38:30,424 INFO  L87              Difference]: Start difference. First operand 1811 states and 2072 transitions. Second operand  has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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)
[2022-11-02 20:38:30,984 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:38:30,985 INFO  L93              Difference]: Finished difference Result 3757 states and 4326 transitions.
[2022-11-02 20:38:30,985 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:38:30,985 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 343
[2022-11-02 20:38:30,986 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:38:30,986 INFO  L225             Difference]: With dead ends: 3757
[2022-11-02 20:38:30,986 INFO  L226             Difference]: Without dead ends: 0
[2022-11-02 20:38:30,989 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:38:30,989 INFO  L413           NwaCegarLoop]: 218 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-11-02 20:38:30,990 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 222 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-11-02 20:38:30,990 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-02 20:38:30,990 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-02 20:38:30,990 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2022-11-02 20:38:30,990 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-02 20:38:30,991 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 343
[2022-11-02 20:38:30,991 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:38:30,991 INFO  L495      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 20:38:30,991 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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)
[2022-11-02 20:38:30,991 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-02 20:38:30,991 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-02 20:38:30,994 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 20:38:31,035 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-11-02 20:38:31,202 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:38:31,204 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-11-02 20:38:31,800 INFO  L899   garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed.
[2022-11-02 20:38:31,800 INFO  L899   garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,801 INFO  L899   garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,801 INFO  L899   garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,801 INFO  L899   garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,801 INFO  L899   garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,801 INFO  L899   garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,801 INFO  L899   garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,801 INFO  L899   garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,801 INFO  L899   garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,801 INFO  L899   garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,801 INFO  L899   garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,802 INFO  L899   garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,802 INFO  L899   garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed.
[2022-11-02 20:38:31,802 INFO  L899   garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed.
[2022-11-02 20:38:31,802 INFO  L899   garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed.
[2022-11-02 20:38:31,802 INFO  L899   garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed.
[2022-11-02 20:38:31,802 INFO  L899   garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed.
[2022-11-02 20:38:31,802 INFO  L899   garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed.
[2022-11-02 20:38:31,802 INFO  L899   garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,802 INFO  L899   garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,802 INFO  L899   garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,803 INFO  L899   garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,804 INFO  L899   garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,805 INFO  L899   garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,805 INFO  L899   garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,805 INFO  L899   garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,805 INFO  L899   garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,805 INFO  L899   garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,805 INFO  L899   garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,805 INFO  L899   garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,805 INFO  L899   garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,805 INFO  L899   garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed.
[2022-11-02 20:38:31,805 INFO  L899   garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed.
[2022-11-02 20:38:31,806 INFO  L899   garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed.
[2022-11-02 20:38:31,806 INFO  L899   garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed.
[2022-11-02 20:38:31,806 INFO  L899   garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed.
[2022-11-02 20:38:31,806 INFO  L899   garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed.
[2022-11-02 20:38:31,806 INFO  L899   garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,808 INFO  L899   garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,809 INFO  L899   garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,809 INFO  L899   garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,809 INFO  L899   garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,809 INFO  L899   garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,809 INFO  L899   garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,809 INFO  L899   garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,810 INFO  L899   garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,810 INFO  L899   garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,810 INFO  L899   garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,810 INFO  L899   garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,810 INFO  L899   garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed.
[2022-11-02 20:38:31,810 INFO  L899   garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed.
[2022-11-02 20:38:31,811 INFO  L899   garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed.
[2022-11-02 20:38:31,811 INFO  L899   garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed.
[2022-11-02 20:38:31,811 INFO  L899   garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed.
[2022-11-02 20:38:31,812 INFO  L899   garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed.
[2022-11-02 20:38:31,812 INFO  L899   garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,812 INFO  L899   garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,812 INFO  L899   garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,812 INFO  L899   garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,813 INFO  L899   garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,813 INFO  L899   garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,814 INFO  L899   garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,814 INFO  L899   garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,814 INFO  L899   garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,815 INFO  L899   garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,815 INFO  L899   garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,815 INFO  L899   garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,815 INFO  L899   garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed.
[2022-11-02 20:38:31,815 INFO  L899   garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed.
[2022-11-02 20:38:31,816 INFO  L899   garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed.
[2022-11-02 20:38:31,816 INFO  L899   garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed.
[2022-11-02 20:38:31,816 INFO  L899   garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed.
[2022-11-02 20:38:31,824 INFO  L899   garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,824 INFO  L899   garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,824 INFO  L899   garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,824 INFO  L899   garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,825 INFO  L899   garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,825 INFO  L899   garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,825 INFO  L899   garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,825 INFO  L899   garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,825 INFO  L899   garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,825 INFO  L899   garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,825 INFO  L899   garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,826 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2022-11-02 20:38:31,826 INFO  L899   garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed.
[2022-11-02 20:38:31,826 INFO  L899   garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed.
[2022-11-02 20:38:31,826 INFO  L899   garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed.
[2022-11-02 20:38:31,826 INFO  L899   garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed.
[2022-11-02 20:38:31,826 INFO  L899   garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed.
[2022-11-02 20:38:31,828 INFO  L895   garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse2 (<= 1 ~a10~0)) (.cse0 (= 14 ~a4~0)) (.cse3 (= ~a10~0 0)) (.cse1 (= ~a12~0 0))) (or (and (not (= ~a10~0 4)) .cse0 .cse1 .cse2) (and .cse3 (<= ~a19~0 6) .cse0 .cse1) (and (<= ~a19~0 9) .cse0 .cse1 .cse2) (and .cse0 (or (and .cse3 (<= 23 ~a1~0)) (and .cse3 (<= 9 ~a19~0))) .cse1)))
[2022-11-02 20:38:31,828 INFO  L899   garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,828 INFO  L899   garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,829 INFO  L899   garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,829 INFO  L899   garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,829 INFO  L899   garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,829 INFO  L899   garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,829 INFO  L899   garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,829 INFO  L899   garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,829 INFO  L899   garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,830 INFO  L899   garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,830 INFO  L899   garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,830 INFO  L899   garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,830 INFO  L899   garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed.
[2022-11-02 20:38:31,830 INFO  L899   garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed.
[2022-11-02 20:38:31,830 INFO  L899   garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed.
[2022-11-02 20:38:31,831 INFO  L899   garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed.
[2022-11-02 20:38:31,831 INFO  L899   garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed.
[2022-11-02 20:38:31,831 INFO  L899   garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,831 INFO  L899   garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,831 INFO  L902   garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true
[2022-11-02 20:38:31,831 INFO  L899   garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,831 INFO  L899   garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,832 INFO  L899   garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,832 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-11-02 20:38:31,832 INFO  L899   garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,832 INFO  L899   garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,832 INFO  L899   garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,832 INFO  L899   garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,832 INFO  L899   garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,833 INFO  L899   garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed.
[2022-11-02 20:38:31,833 INFO  L899   garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed.
[2022-11-02 20:38:31,833 INFO  L899   garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed.
[2022-11-02 20:38:31,833 INFO  L899   garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed.
[2022-11-02 20:38:31,833 INFO  L899   garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed.
[2022-11-02 20:38:31,833 INFO  L899   garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,833 INFO  L899   garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,834 INFO  L899   garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,834 INFO  L899   garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,834 INFO  L899   garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,835 INFO  L899   garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,835 INFO  L899   garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,835 INFO  L899   garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,836 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2022-11-02 20:38:31,836 INFO  L899   garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,836 INFO  L899   garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,836 INFO  L899   garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,836 INFO  L899   garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,836 INFO  L899   garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,837 INFO  L899   garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed.
[2022-11-02 20:38:31,837 INFO  L899   garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed.
[2022-11-02 20:38:31,837 INFO  L899   garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed.
[2022-11-02 20:38:31,837 INFO  L899   garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed.
[2022-11-02 20:38:31,837 INFO  L899   garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed.
[2022-11-02 20:38:31,837 INFO  L899   garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,837 INFO  L899   garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,838 INFO  L899   garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,838 INFO  L895   garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse2 (<= 1 ~a10~0)) (.cse0 (= 14 ~a4~0)) (.cse3 (= ~a10~0 0)) (.cse1 (= ~a12~0 0))) (or (and (not (= ~a10~0 4)) .cse0 .cse1 .cse2) (and .cse3 (<= ~a19~0 6) .cse0 .cse1) (and (<= ~a19~0 9) .cse0 .cse1 .cse2) (and .cse0 (or (and .cse3 (<= 23 ~a1~0)) (and .cse3 (<= 9 ~a19~0))) .cse1)))
[2022-11-02 20:38:31,838 INFO  L899   garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,838 INFO  L899   garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,838 INFO  L899   garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,838 INFO  L899   garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,839 INFO  L899   garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,839 INFO  L899   garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed.
[2022-11-02 20:38:31,839 INFO  L899   garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,839 INFO  L899   garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,839 INFO  L899   garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,839 INFO  L899   garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,840 INFO  L899   garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,840 INFO  L899   garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed.
[2022-11-02 20:38:31,840 INFO  L899   garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed.
[2022-11-02 20:38:31,840 INFO  L899   garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed.
[2022-11-02 20:38:31,840 INFO  L899   garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed.
[2022-11-02 20:38:31,840 INFO  L899   garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed.
[2022-11-02 20:38:31,841 INFO  L899   garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed.
[2022-11-02 20:38:31,841 INFO  L899   garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2022-11-02 20:38:31,841 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 101) no Hoare annotation was computed.
[2022-11-02 20:38:31,841 INFO  L899   garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,841 INFO  L899   garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,841 INFO  L899   garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,842 INFO  L899   garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,842 INFO  L899   garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,842 INFO  L899   garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,842 INFO  L899   garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,842 INFO  L899   garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,842 INFO  L899   garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,842 INFO  L899   garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed.
[2022-11-02 20:38:31,843 INFO  L899   garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,843 INFO  L899   garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,843 INFO  L899   garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed.
[2022-11-02 20:38:31,843 INFO  L899   garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed.
[2022-11-02 20:38:31,843 INFO  L899   garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed.
[2022-11-02 20:38:31,843 INFO  L899   garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed.
[2022-11-02 20:38:31,844 INFO  L899   garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed.
[2022-11-02 20:38:31,844 INFO  L899   garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed.
[2022-11-02 20:38:31,844 INFO  L899   garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed.
[2022-11-02 20:38:31,850 INFO  L444         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:38:31,853 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:38:31,886 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:38:31 BoogieIcfgContainer
[2022-11-02 20:38:31,887 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:38:31,887 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:38:31,888 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:38:31,888 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-11-02 20:38:31,888 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:38:14" (3/4) ...
[2022-11-02 20:38:31,891 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2022-11-02 20:38:31,917 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2022-11-02 20:38:31,918 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2022-11-02 20:38:31,919 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2022-11-02 20:38:31,920 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-02 20:38:32,053 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 20:38:32,053 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:38:32,054 INFO  L158              Benchmark]: Toolchain (without parser) took 19719.96ms. Allocated memory was 100.7MB in the beginning and 314.6MB in the end (delta: 213.9MB). Free memory was 63.5MB in the beginning and 267.7MB in the end (delta: -204.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB.
[2022-11-02 20:38:32,054 INFO  L158              Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:38:32,054 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 659.05ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 60.1MB in the end (delta: 3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:38:32,055 INFO  L158              Benchmark]: Boogie Procedure Inliner took 107.52ms. Allocated memory is still 100.7MB. Free memory was 60.1MB in the beginning and 52.1MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:38:32,055 INFO  L158              Benchmark]: Boogie Preprocessor took 64.22ms. Allocated memory is still 100.7MB. Free memory was 52.1MB in the beginning and 47.2MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2022-11-02 20:38:32,056 INFO  L158              Benchmark]: RCFGBuilder took 1779.53ms. Allocated memory was 100.7MB in the beginning and 132.1MB in the end (delta: 31.5MB). Free memory was 47.2MB in the beginning and 79.4MB in the end (delta: -32.3MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB.
[2022-11-02 20:38:32,057 INFO  L158              Benchmark]: TraceAbstraction took 16934.99ms. Allocated memory was 132.1MB in the beginning and 314.6MB in the end (delta: 182.5MB). Free memory was 78.6MB in the beginning and 277.1MB in the end (delta: -198.5MB). Peak memory consumption was 165.1MB. Max. memory is 16.1GB.
[2022-11-02 20:38:32,057 INFO  L158              Benchmark]: Witness Printer took 165.90ms. Allocated memory is still 314.6MB. Free memory was 277.1MB in the beginning and 267.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:38:32,060 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 659.05ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 60.1MB in the end (delta: 3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 107.52ms. Allocated memory is still 100.7MB. Free memory was 60.1MB in the beginning and 52.1MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 64.22ms. Allocated memory is still 100.7MB. Free memory was 52.1MB in the beginning and 47.2MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * RCFGBuilder took 1779.53ms. Allocated memory was 100.7MB in the beginning and 132.1MB in the end (delta: 31.5MB). Free memory was 47.2MB in the beginning and 79.4MB in the end (delta: -32.3MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB.
 * TraceAbstraction took 16934.99ms. Allocated memory was 132.1MB in the beginning and 314.6MB in the end (delta: 182.5MB). Free memory was 78.6MB in the beginning and 277.1MB in the end (delta: -198.5MB). Peak memory consumption was 165.1MB. Max. memory is 16.1GB.
 * Witness Printer took 165.90ms. Allocated memory is still 314.6MB. Free memory was 277.1MB in the beginning and 267.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 101]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.8s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1176 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1176 mSDsluCounter, 1131 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 715 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4520 IncrementalHoareTripleChecker+Invalid, 5235 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 715 mSolverCounterUnsat, 1066 mSDtfsCounter, 4520 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1171 GetRequests, 1139 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1811occurred in iteration=10, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1549 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 127 HoareAnnotationTreeSize, 3 FomulaSimplifications, 672 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1689 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 3248 NumberOfCodeBlocks, 3248 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3232 ConstructedInterpolants, 0 QuantifiedInterpolants, 14966 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1724 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 2217/2514 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 592]: Loop Invariant
    Derived loop invariant: (((((!(a10 == 4) && 14 == a4) && a12 == 0) && 1 <= a10) || (((a10 == 0 && a19 <= 6) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a12 == 0) && 1 <= a10)) || ((14 == a4 && ((a10 == 0 && 23 <= a1) || (a10 == 0 && 9 <= a19))) && a12 == 0)
  - InvariantResult [Line: 30]: Loop Invariant
    Derived loop invariant: (((((!(a10 == 4) && 14 == a4) && a12 == 0) && 1 <= a10) || (((a10 == 0 && a19 <= 6) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a12 == 0) && 1 <= a10)) || ((14 == a4 && ((a10 == 0 && 23 <= a1) || (a10 == 0 && 9 <= a19))) && a12 == 0)
  - InvariantResult [Line: 586]: Loop Invariant
    Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2022-11-02 20:38:32,098 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc2dfd-c6f4-483a-9972-b0b1564c260f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE